Commit Graph

1293 Commits

Author SHA1 Message Date
Linus Torvalds d3ab02a7c5 Merge branch 'gm_20090410' of git://repo.or.cz/linux-2.6/trivial-mods
* 'gm_20090410' of git://repo.or.cz/linux-2.6/trivial-mods:
  MAINTAINERS - Update MN10300 patterns
  MAINTAINERS - Update frv arch patterns
  scripts/get_maintainer.pl - Allow multiple files on command line
  MAINTAINERS - Update Freescale sound patterns
  MAINTAINERS - Add additional patterns
  MAINTAINERS - Add missing "/" to some pattern directories
  MAINTAINERS - Update DRIVER CORE patterns
  MAINTAINERS - Update M68K patterns
  MAINTAINERS - Coalesce sections "DVB" and "Video for Linux"
  MAINTAINERS - Remove cyblafb frame buffer no longer in tree
  MAINTAINERS - Remove x86/Voyager no longer in tree
  MAINTAINERS - Update FPU Emulator contact address and web page
  MAINTAINERS - i2c_tiny_usb T: should be W:
  MAINTAINERS - Add Linus Torvalds' git
  MAINTAINERS - standardize "T:       git urls"
  MAINTAINERS - Remove HP Fibre Channel HBA no longer in tree
  MAINTAINERS - Standardize style
  MAINTAINERS - Add file patterns
  Add scripts/get_maintainer.pl

Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
2009-04-13 08:24:35 -07:00
Maxime Bizon 9e5ec86152 kbuild: fix spurious initramfs rebuild
When gen_initramfs_list is used to generate make dependencies, it
includes symbolic links, for which make tracks the link target. Any
change to that target will cause an initramfs rebuild, even if the
symlink points to something outside of the initramfs directory.

If the target happens to be /tmp, the rebuild occurs for each kernel
build, since gen_initramfs_list uses mktemp...

Proposed way to fix it is to omit symbolic links from generated
dependencies, but this has a small drawback: changing perm/owner on a
symlink will go unnoticed.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-11 08:18:12 +02:00
Jan Beulich 0fa3a88cfd kbuild: remove pointless strdup() on arguments passed to new_module() in modpost
new_module() itself already calls strdup() on its modname parameter.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-11 08:18:10 +02:00
Sam Ravnborg c7bb349e7c kbuild: introduce destination-y for exported headers
xtensa and arm have asked for a possibility to export headers
and locate them in a specific directory when exported.
Introduce destiantion-y to support this.

This patch in additiona adds some limited
documentation for the variables used for exported headers.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Oskar Schirmer <os@emlix.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
2009-04-11 08:18:08 +02:00
Peter Korsgaard 4774bb1ced kbuild: use git svn instead of git-svn in setlocalversion
Use the correct git <subcmd> syntax instead of the deprecated git-<subcmd>.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-11 08:18:08 +02:00
Sam Ravnborg 612c280ef2 kconfig: fix update-po-config to accect backslash in input
Massimo Maiurana reported (slightly edited):

=====
In latest 2.6.29 "make update-po-config" fails at msguniq invocation
with an "invalid control sequence" error.
The offending string is the following, and it's located in
drivers/staging/panel/Kconfig:72:

    "'\e[L' which are specific to the LCD, and a few ANSI codes. The"

looks to me like gettext expects strings in printf format, so in
this case it thinks "\e" is a control sequence but doesn't recognise
it as a valid one.

A valid solution would be to tell kxgettext to automatically
escape this kind of strings in the */config.pot he produces, so that
msguniq would not complain.
=====

This patch implements the suggested escaping.

Reported-by: Massimo Maiurana <maiurana@gmail.com>
Tested-by: Massimo Maiurana <maiurana@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-11 08:18:07 +02:00
Uwe Kleine-König 79ff807cf2 kbuild: fix option processing for -I in headerdep
-I takes an argument.  Without this change only a 1 is added to
@opt_include which is not helpful.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-11 08:18:07 +02:00
Joe Perches 4a7fdb5f51 scripts/get_maintainer.pl - Allow multiple files on command line
Improve handling of "by:" signoffs
Sorting and frequency checks are done by name/email, not
by "by:" tag.

Signed-off-by: Joe Perches <joe@perches.com>
2009-04-10 13:10:54 -07:00
Joe Perches cb7301c7a3 Add scripts/get_maintainer.pl
A script to parse file pattern information in MAINTAINERS
and return selected information about a file or patch

usage: scripts/get_maintainer.pl [options] patchfile
       scripts/get_maintainer.pl [options] -f file
version: 0.14

MAINTAINERS field selection options:
  --email => print email address(es) if any
    --git => include git "*-by:" signers in commit count order
    --git-chief-penguins => include (Linus Torvalds)
    --git-min-signatures => number of signatures required (default: 1)
    --git-max-maintainers => maximum maintainers to add (default: 5)
    --git-since => git history to use (default: 1-year-ago)
    --m => include maintainer(s) if any
    --n => include name 'Full Name <addr@domain.tld>'
    --l => include list(s) if any
    --s => include subscriber only list(s) if any
  --scm => print SCM tree(s) if any
  --status => print status if any
  --subsystem => print subsystem name if any
  --web => print website(s) if any

Output type options:
  --separator [, ] => separator for multiple entries on 1 line
  --multiline => print 1 entry per line

Default options:
  [--email --git --m --n --l --multiline]

Other options:
  --version => show version
  --help => show this help information

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
2009-04-10 13:10:40 -07:00
Linus Torvalds 1e17d774db Merge git://git.infradead.org/~dwmw2/firmware-2.6
* git://git.infradead.org/~dwmw2/firmware-2.6:
  qla1280: Fix off-by-some error in firmware loading.
  Add README.AddingFirmware file. Basically telling people not to.
  firmware: Remove newly-added slicoss and sxg firmware images
  firmware/WHENCE: Add missing origin information for Ambassador atmsar11.fw
  ALSA: wavefront - Always use request_firmware()
  Remove fdump tool for av7110 firmware
  firmware: convert av7110 driver to request_firmware()
  Partially revert "V4L/DVB (9533): cx88: Add support for TurboSight TBS8910 DVB-S PCI card"
  Revert "fix modules_install via NFS"

Add-add conflicts in firmware/WHENCE fixed manually
2009-04-10 12:01:22 -07:00
Linus Torvalds c93f216b5b Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  branch tracer, intel-iommu: fix build with CONFIG_BRANCH_TRACER=y
  branch tracer: Fix for enabling branch profiling makes sparse unusable
  ftrace: Correct a text align for event format output
  Update /debug/tracing/README
  tracing/ftrace: alloc the started cpumask for the trace file
  tracing, x86: remove duplicated #include
  ftrace: Add check of sched_stopped for probe_sched_wakeup
  function-graph: add proper initialization for init task
  tracing/ftrace: fix missing include string.h
  tracing: fix incorrect return type of ns2usecs()
  tracing: remove CALLER_ADDR2 from wakeup tracer
  blktrace: fix pdu_len when tracing packet command requests
  blktrace: small cleanup in blk_msg_write()
  blktrace: NUL-terminate user space messages
  tracing: move scripts/trace/power.pl to scripts/tracing/power.pl
2009-04-07 14:10:10 -07:00
David Woodhouse 556b0f58bb Revert "fix modules_install via NFS"
This reverts commit 8b249b6856.

This 'fix' is not necessary; we just need to undo the damage caused
accidentally by Igor/Mauro in 4b29631db3
("V4L/DVB (9533): cx88: Add support for TurboSight TBS8910 DVB-S PCI card")

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06 14:27:17 -07:00
Linus Torvalds 714f83d5d9 Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (413 commits)
  tracing, net: fix net tree and tracing tree merge interaction
  tracing, powerpc: fix powerpc tree and tracing tree interaction
  ring-buffer: do not remove reader page from list on ring buffer free
  function-graph: allow unregistering twice
  trace: make argument 'mem' of trace_seq_putmem() const
  tracing: add missing 'extern' keywords to trace_output.h
  tracing: provide trace_seq_reserve()
  blktrace: print out BLK_TN_MESSAGE properly
  blktrace: extract duplidate code
  blktrace: fix memory leak when freeing struct blk_io_trace
  blktrace: fix blk_probes_ref chaos
  blktrace: make classic output more classic
  blktrace: fix off-by-one bug
  blktrace: fix the original blktrace
  blktrace: fix a race when creating blk_tree_root in debugfs
  blktrace: fix timestamp in binary output
  tracing, Text Edit Lock: cleanup
  tracing: filter fix for TRACE_EVENT_FORMAT events
  ftrace: Using FTRACE_WARN_ON() to check "freed record" in ftrace_release()
  x86: kretprobe-booster interrupt emulation code fix
  ...

Fix up trivial conflicts in
 arch/parisc/include/asm/ftrace.h
 include/linux/memory.h
 kernel/extable.c
 kernel/module.c
2009-04-05 11:04:19 -07:00
Linus Torvalds cab4e4c43f Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param:
  module: use strstarts()
  strstarts: helper function for !strncmp(str, prefix, strlen(prefix))
  arm: allow usage of string functions in linux/string.h
  module: don't use stop_machine on module load
  module: create a request_module_nowait()
  module: include other structures in module version check
  module: remove the SHF_ALLOC flag on the __versions section.
  module: clarify the force-loading taint message.
  module: Export symbols needed for Ksplice
  Ksplice: Add functions for walking kallsyms symbols
  module: remove module_text_address()
  module: __module_address
  module: Make find_symbol return a struct kernel_symbol
  kernel/module.c: fix an unused goto label
  param: fix charp parameters set via sysfs

Fix trivial conflicts in kernel/extable.c manually.
2009-04-05 10:30:21 -07:00
Helge Deller 91400ac365 parisc: fix "make tar-pkg"
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-04-02 01:22:24 +00:00
Ingo Molnar 8302294f43 Merge branch 'tracing/core-v2' into tracing-for-linus
Conflicts:
	include/linux/slub_def.h
	lib/Kconfig.debug
	mm/slob.c
	mm/slub.c
2009-04-02 00:49:02 +02:00
Lai Jiangshan 4fafd5b038 tracing: move scripts/trace/power.pl to scripts/tracing/power.pl
Impact: Cleanup

We use scripts/tracing/ to contain tracing scripts.
Use one directory only instead of two.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Steven Rostedt <srostedt@redhat.com>
LKML-Reference: <49D06B9C.3070209@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-01 11:30:35 +02:00
Rusty Russell 8c8ef42aee module: include other structures in module version check
With CONFIG_MODVERSIONS, we version 'struct module' using a dummy
export, but other things matter too:

1) 'struct modversion_info' determines the layout of the __versions section,
2) 'struct kernel_param' determines the layout of the __params section,
3) 'struct kernel_symbol' determines __ksymtab*.
4) 'struct marker' determines __markers.
5) 'struct tracepoint' determines __tracepoints.

So we rename 'struct_module' to 'module_layout' and include these in
the signature.  Now it's general we can add others later on without
confusion.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-03-31 13:05:34 +10:30
Ingo Molnar 6e15cf0486 Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2
Conflicts:
	arch/parisc/kernel/irq.c
	arch/x86/include/asm/fixmap_64.h
	arch/x86/include/asm/setup.h
	kernel/irq/handle.c

Semantic merge:
        arch/x86/include/asm/fixmap.h

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-27 17:28:43 +01:00
Linus Torvalds ba1eb95cf3 Merge branch 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits)
  x86: headers cleanup - setup.h
  emu101k1.h: fix duplicate include of <linux/types.h>
  compiler-gcc4: conditionalize #error on __KERNEL__
  remove __KERNEL_STRICT_NAMES
  make netfilter use strict integer types
  make drm headers use strict integer types
  make MTD headers use strict integer types
  make most exported headers use strict integer types
  make exported headers use strict posix types
  unconditionally include asm/types.h from linux/types.h
  make linux/types.h as assembly safe
  Neither asm/types.h nor linux/types.h is required for arch/ia64/include/asm/fpu.h
  headers_check fix cleanup: linux/reiserfs_fs.h
  headers_check fix cleanup: linux/nubus.h
  headers_check fix cleanup: linux/coda_psdev.h
  headers_check fix: x86, setup.h
  headers_check fix: x86, prctl.h
  headers_check fix: linux/reinserfs_fs.h
  headers_check fix: linux/socket.h
  headers_check fix: linux/nubus.h
  ...

Manually fix trivial conflicts in:
	include/linux/netfilter/xt_limit.h
	include/linux/netfilter/xt_statistic.h
2009-03-26 16:11:41 -07:00
Ingo Molnar 5a54bd1307 Merge commit 'v2.6.29' into core/header-fixes 2009-03-26 18:29:40 +01:00
Jason Baron e9d376f0fa dynamic debug: combine dprintk and dynamic printk
This patch combines Greg Bank's dprintk() work with the existing dynamic
printk patchset, we are now calling it 'dynamic debug'.

The new feature of this patchset is a richer /debugfs control file interface,
(an example output from my system is at the bottom), which allows fined grained
control over the the debug output. The output can be controlled by function,
file, module, format string, and line number.

for example, enabled all debug messages in module 'nf_conntrack':

echo -n 'module nf_conntrack +p' > /mnt/debugfs/dynamic_debug/control

to disable them:

echo -n 'module nf_conntrack -p' > /mnt/debugfs/dynamic_debug/control

A further explanation can be found in the documentation patch.

Signed-off-by: Greg Banks <gnb@sgi.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:38:26 -07:00
Eric Miao 57fee4a58f platform: introduce module id table for platform devices
Now platform_device is being widely used on SoC processors where the
peripherals are attached to the system bus, which is simple enough.

However, silicon IPs for these SoCs are usually shared heavily across
a family of processors, even products from different companies.  This
makes the original simple driver name based matching insufficient, or
simply not straight-forward.

Introduce a module id table for platform devices, and makes it clear
that a platform driver is able to support some shared IP and handle
slight differences across different platforms (by 'driver_data').
Module alias is handled automatically when a MODULE_DEVICE_TABLE()
is defined.

To not disturb the current platform drivers too much, the matched id
entry is recorded and can be retrieved by platform_get_device_id().

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:38:24 -07:00
Ingo Molnar b0fe551000 kconfig: improve seed in randconfig
'make randconfig' uses glibc's rand function, and the seed of
that PRNG is set via:

			srand(time(NULL));

But 'time()' only increases once every second - freezing the
randconfig result within a single second.

My Nehalem testbox does randconfig much faster than 1 second
 and i have a few scripts that do 'randconfig until condition X'
loops.

Those scripts currently waste a lot of CPU time due to randconfig
changing its seed only once per second currently.

Change the seed to be micrseconds based. (I checked the statistical
spread of the seed - the now.tv_sec*now.tv_usec multiplication
there further improves it.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Roman Zippel <zippel@linux-m68k.org>
[sam: fix for systems where usec is zero - noticed by Geert Uytterhoeven]
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-15 23:02:07 +01:00
Sam Ravnborg 184832c981 kconfig: fix randconfig for choice blocks
Ingo Molnar reported that 'make randconfig' was not covering
choice blocks properly, resulting in certain config options
being left out of randconfig testing altogether.

With the following patch we:
- properly randomize choice value for normal choice blocks
- properly randomize for multi choice blocks
- added several comments to explain what is going on

The root cause of the bug was that SYMBOL_VALID was set on the
symbol representing the choice block so clearing this did
the trick initially.
But testign revealed a few more issues that is now fixed.

Reported-by: Ingo Molnar <mingo@elte.hu>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-15 22:54:57 +01:00
Lai Jiangshan b478b782e1 kallsyms, tracing: output more proper symbol name
Impact: bugfix, output more reliable symbol lookup result

Debug tools(dump_stack(), ftrace...) are like to print out symbols.
But it is always print out the first aliased symbol.(Aliased symbols
are symbols with the same address), and the first aliased symbol is
sometime not proper.

 # echo function_graph > current_tracer
 # cat trace
......
 1)   1.923 us    |    select_nohz_load_balancer();
 1) + 76.692 us   |  }
 1)               |  default_idle() {
 1)   ==========> |    __irqentry_text_start() {
 1)   0.000 us    |      native_apic_mem_write();
 1)               |      irq_enter() {
 1)   0.000 us    |        idle_cpu();
 1)               |        tick_check_idle() {
 1)   0.000 us    |          tick_check_oneshot_broadcast();
 1)               |          tick_nohz_stop_idle() {
......

It's very embarrassing, it ouputs "__irqentry_text_start()",
actually, it should output "smp_apic_timer_interrupt()".
(these two symbol are the same address, but "__irqentry_text_start"
is deemed to the first aliased symbol by scripts/kallsyms)

This patch puts symbols like "__irqentry_text_start" to the second
aliased symbols. And a more proper symbol name becomes the first.

Aliased symbols mostly come from linker script. The solution is
guessing "is this symbol defined in linker script", the symbols
defined in linker script will not become the first aliased symbol.

And if symbols are found to be equal in this "linker script provided"
criteria, symbols are sorted by the number of prefix underscores.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Paulo Marques <pmarques@grupopie.com>
LKML-Reference: <49BA06E2.7080807@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-14 09:55:04 +01:00
Ingo Molnar 480c93df5b Merge branch 'core/locking' into tracing/ftrace 2009-03-13 01:33:21 +01:00
Josh Hunt b925dbfe3c kbuild: fix 'make rpm' when CONFIG_LOCALVERSION_AUTO=y and using SCM tree
Running 'make rpm' fails when CONFIG_LOCALVERSION_AUTO=y and using a kernel source
tree under SCM.  This is due to KERNELRELEASE being different when the initial make
is run and when make is run from rpmbuild.

mkspec creates kernel.spec using KERNELRELEASE:

<mkspec>
echo "%files"
echo '%defattr (-, root, root)'
echo "%dir /lib/modules"
echo "/lib/modules/$KERNELRELEASE"
echo "/lib/firmware"
echo "/boot/*"
echo ""
</mkspec>

When CONFIG_LOCALVERSION_AUTO=y scripts/setlocalversion is called and grabs any
additional version info from SCM.  Next, the srctree is tarred up and SCM
information is excluded.

rpmbuild reruns make and in the process generates a new include/config/kernel.release
and thus a new KERNELRELEASE.  However this time the SCM information is gone so
KERNELRELEASE no longer has the additional version information.  When "make modules_install"
runs, it uses the new KERNELRELEASE value to determine where to install the modules.
This conflicts with where the spec file assumes they are going because of the
mis-matching KERNELRELEASE versions.

<snippet>
+ INSTALL_MOD_PATH=/var/tmp/kernel-2.6.29rc4tip01479g5d85422-root
+ make -j16 modules_install
  INSTALL crypto/aead.ko
  INSTALL crypto/cbc.ko
  INSTALL crypto/chainiv.ko
  INSTALL crypto/crc32c.ko
  INSTALL crypto/crypto_algapi.ko
  INSTALL crypto/crypto_blkcipher.ko
  INSTALL crypto/crypto_hash.ko
  INSTALL crypto/cryptomgr.ko
  INSTALL crypto/ecb.ko
  INSTALL crypto/eseqiv.ko
  INSTALL crypto/krng.ko
  INSTALL crypto/md5.ko
  INSTALL crypto/pcbc.ko
  INSTALL crypto/rng.ko
  INSTALL drivers/block/cciss.ko
  INSTALL drivers/hid/hid-dummy.ko
  INSTALL drivers/scsi/iscsi_tcp.ko
  INSTALL drivers/scsi/libiscsi.ko
  INSTALL drivers/scsi/libiscsi_tcp.ko
  INSTALL drivers/scsi/scsi_transport_iscsi.ko
  INSTALL drivers/scsi/scsi_wait_scan.ko
  INSTALL fs/lockd/lockd.ko
  INSTALL fs/nfs/nfs.ko
  INSTALL fs/nfsd/nfsd.ko
  INSTALL lib/libcrc32c.ko
  INSTALL net/sunrpc/sunrpc.ko
  DEPMOD  2.6.29-rc4-tip
+ cp arch/x86/boot/bzImage
/var/tmp/kernel-2.6.29rc4tip01479g5d85422-root/boot/vmlinuz-2.6.29-rc4-tip-01479-g5d85422
+ cp System.map
/var/tmp/kernel-2.6.29rc4tip01479g5d85422-root/boot/System.map-2.6.29-rc4-tip-01479-g5d85422
+ cp .config
/var/tmp/kernel-2.6.29rc4tip01479g5d85422-root/boot/config-2.6.29-rc4-tip-01479-g5d85422
+ cp vmlinux vmlinux.orig
+ bzip2 -9 vmlinux
+ mv vmlinux.bz2
/var/tmp/kernel-2.6.29rc4tip01479g5d85422-root/boot/vmlinux-2.6.29-rc4-tip-01479-g5d85422.bz2
+ mv vmlinux.orig vmlinux
+ /usr/lib/rpm/brp-compress
Processing files: kernel-2.6.29rc4tip01479g5d85422-2
error: File not found:
/var/tmp/kernel-2.6.29rc4tip01479g5d85422-root/lib/modules/2.6.29-rc4-tip-01479-g5d85422

RPM build errors:
    File not found:
/var/tmp/kernel-2.6.29rc4tip01479g5d85422-root/lib/modules/2.6.29-rc4-tip-01479-g5d85422
make[1]: *** [rpm] Error 1
make: *** [rpm] Error 2
</snippet>

I have tested this patch on git -tip, Linus' git tree, and the kernel.org tar files, both
with and without CONFIG_LOCALVERSION_AUTO=y.

Signed-off-by: Josh Hunt <josh@scalex86.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
----
2009-03-07 13:55:38 +01:00
Josh Hunt a2ebcc7a86 kbuild: fix mkspec to cleanup RPM_BUILD_ROOT
The contents of the %clean section in mkspec is currently commented
out leaving RPM_BUILD_ROOT and its contents on the build machine.
This patch removes it once the rpm build process is complete.

Signed-off-by: Josh Hunt <josh@scalex86.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-07 13:53:21 +01:00
Justin P. Mattock d15bd1067b kbuild: fix C libary confusion in unifdef.c due to getline()
This fixes an error when compiling the kernel.

  CHK     include/linux/version.h
  HOSTCC  scripts/unifdef
scripts/unifdef.c:209: error: conflicting types for 'getline'
/usr/include/stdio.h:651: note: previous declaration of 'getline' was here
make[1]: *** [scripts/unifdef] Error 1
make: *** [__headers] Error 2

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Cc:  Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-07 13:31:29 +01:00
Ingo Molnar f0ef039851 Merge branch 'x86/core' into tracing/textedit
Conflicts:
	arch/x86/Kconfig
	block/blktrace.c
	kernel/irq/handle.c

Semantic conflict:
	kernel/trace/blktrace.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-06 16:45:01 +01:00
Ingo Molnar 8b0e5860cb Merge branches 'x86/apic', 'x86/cpu', 'x86/fixmap', 'x86/mm', 'x86/sched', 'x86/setup-lzma', 'x86/signal' and 'x86/urgent' into x86/core 2009-03-04 02:22:31 +01:00
Ingo Molnar fdfa66ab45 Merge branches 'tracing/ftrace', 'tracing/mmiotrace' and 'linus' into tracing/core 2009-03-02 22:37:35 +01:00
Ingo Molnar 55f2b78995 Merge branch 'x86/urgent' into x86/pat 2009-03-01 12:47:58 +01:00
Andy Whitcroft bea5606d08 checkpatch: version 0.28
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-27 16:26:22 -08:00
Andy Whitcroft 417495eda3 checkpatch: add __ref as a sparse modifier
Add __ref as a sparse modifier.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-27 16:26:22 -08:00
Andy Whitcroft 9360b0e50e checkpatch: extend attribute testing to all modifiers
We should allow testing of all modifiers not just attributes.  Extend
testing and test for all the know modifiers.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-27 16:26:22 -08:00
Andy Whitcroft 667026e7b0 checkpatch: a modifier is not an identifier at the end of a type
We must make sure we do not misrecognise a modifier as an Identifier
when trying to match types.  Prevent us matching this:

	void * __ref

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-27 16:26:22 -08:00
Andy Whitcroft a3340b3578 checkpatch: pointer type star may have modifiers following
We may have any modifier following a pointer type star.  Handle this:

	void * __user * __user foo;

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-27 16:26:22 -08:00
Andy Whitcroft 00ef4ece05 checkpatch: correctly handle type spacing in the face of modifiers
We need to handle interspersed modifiers in the middle of pointer types,
for example:

	void * __user * __user bar;

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-27 16:26:21 -08:00
Andy Whitcroft e2f7aa4b8b checkpatch: do not warn about -p0 patches when checking files
We are triggering the -p0 check for our own diffs generated using --file
command line option.  Suppress this check for files.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-27 16:26:21 -08:00
Andy Whitcroft f4a8773676 checkpatch: make in_atomic ok in the core
We say that in_atomic() is ok in the core kernel, but then always report
it regardless of where in the kernel it is.  Keep quiet if it is used in
kernel/*.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-27 16:26:21 -08:00
Ingo Molnar fc6fc7f1b1 Merge branch 'linus' into x86/apic
Conflicts:
	arch/x86/mach-default/setup.c

Semantic conflict resolution:
	arch/x86/kernel/setup.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-22 20:05:19 +01:00
Ingo Molnar 3b6f7b9beb Merge branch 'x86/urgent' into x86/core 2009-02-20 17:40:43 +01:00
Alain Knaff ab59d3b70f bzip2/lzma: don't leave empty files around on failure
Impact: Bugfix, silent build failures

Fix a bug in gen_initramfs_list.sh: in case of failure, it left an
empty output file behind, messing up the next make.

Signed-off-by: Alain Knaff <alain@knaff.lu>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2009-02-19 13:39:21 -08:00
Ingo Molnar 72c26c9a26 Merge branch 'linus' into tracing/blktrace
Conflicts:
	block/blktrace.c

Semantic merge:
	kernel/trace/blktrace.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-19 09:00:35 +01:00
Linus Torvalds 51f267739a Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild: create the source symlink earlier in the objdir
  scripts: add x86 64 bit support to the markup_oops.pl script
  scripts: add x86 register parser to markup_oops.pl
  kbuild: add sys_* entries for syscalls in tags
  kbuild: fix tags generation of config symbols
  bootgraph: fix for use with dot symbols
  kbuild: add vmlinux to kernel rpm
  kbuild,setlocalversion: shorten the make time when using svn
2009-02-17 14:15:23 -08:00
Jiri Slaby 2b639386a2 HID: fix bus endianity in file2alias
Fix endianness of bus member of hid_device_id in modpost.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Reported-by: Nye Liu <nyet@mrv.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-02-17 13:25:01 +01:00
Arjan van de Ven 11df65c3c6 scripts: add x86 64 bit support to the markup_oops.pl script
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-02-15 12:50:10 +01:00
Arjan van de Ven c19ef7fd8e scripts: add x86 register parser to markup_oops.pl
An oops dump also contains the register values.

This patch parses these for (32 bit) x86, and then annotates the
disassembly with these values; this helps in analysis of the oops by the
developer, for example, NULL pointer or other pointer bugs show up clearly
this way.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-02-15 12:50:10 +01:00
Rabin Vincent 5123b327c1 kbuild: add sys_* entries for syscalls in tags
Currently, it is no longer possible to use the tags file to jump to
system call function definitions with sys_foo, because the definitions
are obscured by use of the SYSCALL_DEFINE* macros.

This patch adds the appropriate option to ctags to make it see through
the macro.  Also, it adds the ENTRY() work already done for Exuberant
to Emacs too.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-02-15 12:50:09 +01:00
Alexey Dobriyan 953fae66d1 kbuild: fix tags generation of config symbols
commit 4f628248a5 aka "kbuild: reintroduce
ALLSOURCE_ARCHS support for tags/cscope" breaks tags generation for
Kconfig symbols.

Steps to reproduce:

	make tags
	vi -t PROC_FS

It should jump to 'config PROC_FS' line.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Tested-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-02-15 12:50:09 +01:00
Michael Neuling 0bb98e2318 bootgraph: fix for use with dot symbols
powerpc has dot symbols, so the dmesg output looks like:

<4>[    0.327310] calling  .migration_init+0x0/0x9c @ 1
<4>[    0.327595] initcall .migration_init+0x0/0x9c returned 1 after 0 usecs

The below fixes bootgraph.pl so it handles this correctly.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-02-15 12:50:08 +01:00
Josh Hunt fc370ecfdb kbuild: add vmlinux to kernel rpm
We are building an automated system to test kernels weekly and need to
provide an rpm to our QA dept.  We would like to use the ability to create
kernel rpms already in the kernel's Makefile, but need the vmlinux file
included in the rpm for later debugging.

This patch adds a compressed vmlinux to the kernel rpm when doing a
make rpm-pkg or binrpm-pkg and upon install places the vmlinux file in /boot.

Signed-off-by: Josh Hunt <josh@scalex86.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-02-15 12:50:08 +01:00
Mike Frysinger d21d52d4a1 kbuild,setlocalversion: shorten the make time when using svn
Don't bother doing `svn st` as it takes a retarded amount of time when
the source is cold

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-02-15 12:50:07 +01:00
Ingo Molnar 22796b1572 Merge branch 'core/header-fixes' into x86/headers
Conflicts:
	arch/x86/include/asm/setup.h
2009-02-13 21:05:03 +01:00
Ingo Molnar 1c511f740f Merge branches 'tracing/ftrace', 'tracing/ring-buffer', 'tracing/sysprof', 'tracing/urgent' and 'linus' into tracing/core 2009-02-13 10:25:18 +01:00
Ingo Molnar ab639f3593 Merge branch 'core/percpu' into x86/core 2009-02-13 09:45:09 +01:00
Randy Dunlap b4870bc5ee kernel-doc: fix syscall wrapper processing
Fix kernel-doc processing of SYSCALL wrappers.

The SYSCALL wrapper patches played havoc with kernel-doc for
syscalls.  Syscalls that were scanned for DocBook processing
reported warnings like this one, for sys_tgkill:

Warning(kernel/signal.c:2285): No description found for parameter 'tgkill'
Warning(kernel/signal.c:2285): No description found for parameter 'pid_t'
Warning(kernel/signal.c:2285): No description found for parameter 'int'

because the macro parameters all "look like" function parameters,
although they are not:

/**
 *  sys_tgkill - send signal to one specific thread
 *  @tgid: the thread group ID of the thread
 *  @pid: the PID of the thread
 *  @sig: signal to be sent
 *
 *  This syscall also checks the @tgid and returns -ESRCH even if the PID
 *  exists but it's not belonging to the target process anymore. This
 *  method solves the problem of threads exiting and PIDs getting reused.
 */
SYSCALL_DEFINE3(tgkill, pid_t, tgid, pid_t, pid, int, sig)
{
...

This patch special-cases the handling SYSCALL_DEFINE* function
prototypes by expanding them to
	long sys_foobar(type1 arg1, type1 arg2, ...)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-11 14:25:36 -08:00
Ingo Molnar ebd9026d9f stackprotector: fix multi-word cross-builds
Stackprotector builds were failing if CROSS_COMPILER was more than
a single world (such as when distcc was used) - because the check
scripts used $1 instead of $*.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-11 12:17:29 +01:00
Tejun Heo 60a5317ff0 x86: implement x86_32 stack protector
Impact: stack protector for x86_32

Implement stack protector for x86_32.  GDT entry 28 is used for it.
It's set to point to stack_canary-20 and have the length of 24 bytes.
CONFIG_CC_STACKPROTECTOR turns off CONFIG_X86_32_LAZY_GS and sets %gs
to the stack canary segment on entry.  As %gs is otherwise unused by
the kernel, the canary can be anywhere.  It's defined as a percpu
variable.

x86_32 exception handlers take register frame on stack directly as
struct pt_regs.  With -fstack-protector turned on, gcc copies the
whole structure after the stack canary and (of course) doesn't copy
back on return thus losing all changed.  For now, -fno-stack-protector
is added to all files which contain those functions.  We definitely
need something better.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-10 00:42:01 +01:00
Tejun Heo 5d707e9c8e stackprotector: update make rules
Impact: no default -fno-stack-protector if stackp is enabled, cleanup

Stackprotector make rules had the following problems.

* cc support test and warning are scattered across makefile and
  kernel/panic.c.

* -fno-stack-protector was always added regardless of configuration.

Update such that cc support test and warning are contained in makefile
and -fno-stack-protector is added iff stackp is turned off.  While at
it, prepare for 32bit support.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-10 00:41:54 +01:00
Tejun Heo 56fc82c536 modpost: NOBITS sections may point beyond the end of the file
Impact: fix link failure on certain toolchains with specific configs

Recent percpu change made x86_64 split .data.init section into three
separate segments - data.init, percpu and data.init2.  data.init2 gets
.data.nosave and .bss.* and is followed by .notes segment.  Depending
on configuration both segments might contain no data, in which case
the tool chain makes the section header to contain offset beyond the
end of the file.

modpost isn't too happy about it and fails build - as reported by
Pawel Dziekonski:

    Building modules, stage 2.
    MODPOST 416 modules
    FATAL: vmlinux is truncated. sechdrs[i].sh_offset=10354688 >
    sizeof(*hrd)=64
    make[1]: *** [__modpost] Error 1

Teach modpost that NOBITS section may point beyond the end of the file
and that .modinfo can't be NOBITS.

Reported-by: Pawel Dziekonski <dzieko@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05 20:25:43 +01:00
Ingo Molnar dc573f9b20 Merge branches 'tracing/ftrace', 'tracing/kmemtrace' and 'linus' into tracing/core 2009-02-03 06:25:38 +01:00
Sam Ravnborg 7e3fa56141 kbuild: drop check for CONFIG_ in headers_check
The check for references to CONFIG_ symbols in exported headers turned
out to be too agressive with the current state of affairs.
After the work of Jaswinder to clean up all relevant cases we are down
to almost pure noise.

So lets drop the check for now - we can always add it back later
should our headers be ready for that.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-31 00:36:15 +01:00
Linus Torvalds 2034563ca3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild: fix kbuild.txt typos
  kbuild: print usage with no arguments in scripts/config
  Revert "kbuild: strip generated symbols from *.ko"
2009-01-26 15:10:37 -08:00
Kay Sievers 72638f598e PNP: fix broken pnp lowercasing for acpi module aliases
Based on a patch from Brian, who identified the issue.

Signed-off-by: Bryan Kadzban <bryan@kadzban.is-a-geek.net>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-20 20:52:08 -08:00
Steven Rostedt b43f70933e ftrace: test for running of recordmcount.pl twice on an object
Impact: fix failure of dynamic function tracer selftest

In a course of development, a developer does several makes on their
kernel. Sometimes, the make might do something abnormal. In the
case of running the recordmcount.pl script on an object twice,
the script will duplicate all the calls to mcount in the __mcount_loc
section.

On boot up, the dynamic function tracer is careful when it modifies
code, and performs several consistency checks. One is to not modify
the call site if it is not what it expects it to be. If a function
call site is listed twice, the first entry will convert the site
to a nop, and the second will fail because it expected to see a
call to mcount, but instead it sees a nop. Thus, the function tracer
is disabled.

Eric Sesterhenn reported seeing:

[    1.055440] ftrace: converting mcount calls to 0f 1f 44 00 00
[    1.055568] ftrace: allocating 29418 entries in 116 pages
[    1.061000] ------------[ cut here ]------------
[    1.061000] WARNING: at kernel/trace/ftrace.c:441

 [...]

[    1.060000] ---[ end trace 4eaa2a86a8e2da23 ]---
[    1.060000] ftrace failed to modify [<c0118072>] check_corruption+0x3/0x2d
[    1.060000]  actual: 0f:1f:44:00:00

This warning shows that check_corruption+0x3 already had a nop in
its place (0x0f1f440000). After compiling another kernel the problem
went away.

Later Eric Paris notice the same type of issue. Luckily, he saved
the vmlinux file that caused it. In the file we found a bunch of
duplicate mcount call site records, which lead us to the script.

Perhaps this problem only happens to people named Eric.

This patch changes the script to test if the __mcount_loc already
exists in the object file, and if it does, it will print out
an error message and kill the compile.

Reported-by: Eric Sesterhenn <snakebyte@gmx.de>
Reported-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-18 20:15:26 +01:00
Ingo Molnar 4092762aeb Merge branch 'tracing/ftrace'; commit 'v2.6.29-rc2' into tracing/core 2009-01-18 20:15:05 +01:00
Andy Whitcroft db92a6502d checkpatch: version: 0.27
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-15 16:39:39 -08:00
Andy Whitcroft 6903ffb225 checkpatch: struct seq_operations should normally be const
In the general use case struct seq_operations should be a const object.
Check for and warn where it is not.

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-15 16:39:39 -08:00
Andy Whitcroft 3966778236 checkpatch: if should not continue a preceeding brace
We should not be continuing a braced section with an if, for example:

	if (...) {
	} if (...) {
	}

Detect this and suggest adding a newline.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-15 16:39:38 -08:00
Andy Whitcroft 63f17f8973 checkpatch: allow parentheses on return handle array values
When we allow return to have surrounding parentheses when containing
comparison operators we are not correctly handling the case where the
values contain array sufffixes.  Squash them.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-15 16:39:38 -08:00
Andy Whitcroft f9a0b3d17a checkpatch: type/cast spacing should not check prefix spacing
We should not be complaining about the prefix spacing for types and casts.
 We are triggering here because the check for spacing between '*'s is
overly loose.  Tighten this up.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-15 16:39:38 -08:00
Andy Whitcroft a27506459c checkpatch: handle missing #if open in context
If the #if opening statement is not in the context then the context stack
can be empty.  Handle this by ensuring there is always a blank entry in
the stack.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Tested-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-15 16:39:38 -08:00
Andi Kleen 2302e8730e kbuild: print usage with no arguments in scripts/config
Requested by Sam.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-14 21:40:49 +01:00
Sam Ravnborg 2ea038917b Revert "kbuild: strip generated symbols from *.ko"
This reverts commit ad7a953c52.

And commit: ("allow stripping of generated symbols under CONFIG_KALLSYMS_ALL")
            9bb482476c

These stripping patches has caused a set of issues:

1) People have reported compatibility issues with binutils due to
   lack of support for `--strip-unneeded-symbols' with objcopy 2.15.92.0.2
   Reported by: Wenji
2) ccache and distcc no longer works as expeced
   Reported by: Ted, Roland, + others
3) The installed modules increased a lot in size
   Reported by: Ted, Davej + others

Reported-by: Wenji Huang <wenji.huang@oracle.com>
Reported-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Dave Jones <davej@redhat.com>
Reported-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-14 21:38:20 +01:00
Shaohua Li 418071eb6a ftrace, ia64: Add recordmcount for ia64
Add recordmcount for ia64.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-14 12:11:22 +01:00
Shaohua Li 25aac9dc7c ftrace, ia64: explictly ignore a file in recordmcount.pl
In IA64, a function pointer isn't a 'unsigned long' but a
'struct {unsigned long ip, unsigned long gp}'. MCOUNT_ADDR is determined
at link time not compile time, so explictly ignore kernel/trace/ftrace.o
in recordmcount.pl.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-14 12:11:13 +01:00
Shaohua Li 18c167fd6d ftrace, ia64: make recordmcount distinct module compile
In IA64, module build and kernel build use different option.
Make recordmcount.pl differentiate the two cases.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-14 12:11:08 +01:00
Arjan van de Ven d32ad102c6 script: improve markup_oops.pl to also decode oopses in modules
There has been some light flamewar on lkml about decoding oopses
in modules (as part of the crashdump flamewar).

Now this isn't rocket science, just the markup_oops.pl script
cheaped out and didn't handle modules. But really; a flamewar
all about that?? What happened to C++ in the kernel or reading
files from inside the kernel?

This patch adds module support to markup_oops.pl; it's not the
most pretty perl but it works for my testcases...

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-12 16:39:58 -08:00
Arjan van de Ven d3f8ddea44 bootgraph: make the bootgraph script show async waiting time
It is useful for diagnosing boot performance to see where async function
calls are waiting on serialization...  this patch adds this
functionality to the bootgraph.pl script.

The waiting time is shown as a half transparent, gray bar through the
block that is waiting.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-10 15:06:52 -08:00
Ingo Molnar b17304245f Merge branch 'linus' into x86/setup-lzma
Conflicts:
	init/do_mounts_rd.c
2009-01-10 12:04:41 +01:00
Andi Kleen 8e54701ea8 kconfig: add script to manipulate .config files on the command line
I often change single options in .config files. Instead of using
an editor or one of the frontends it's convenient to do this from
the command line. It's also useful to do from automated build scripts
when building different variants from a base config file.

I extracted most of the CONFIG manipulation code from one of my
build scripts into a new shell script scripts/config

The script is not integrated with the normal Kconfig machinery
and doesn't do any checking against Kconfig files, but just manipulates
that text format. This is always done at make time anyways.

I believe this script would be a useful standard addition for scripts/*

Sample usage:

./scripts/config --disable smp
Disable SMP in .config file

./scripts/config --file otherdir/.config --module e1000e
Enable E1000E as module in otherdir/.config

./scripts/config --state smp
y
Check state of config option CONFIG_SMP

After merging into git please make scripts/config executable

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-07 21:44:22 +01:00
Jike Song 4f628248a5 kbuild: reintroduce ALLSOURCE_ARCHS support for tags/cscope
This patch reintroduce the ALLSOURCE_ARCHS support for tags/TAGS/
cscope targets. The Kbuild previously has this feature, but after
moving the targets into scripts/tags.sh, ALLSOURCE_ARCHS disappears.

It's something like this:

	$ make ALLSOURCE_ARCHS="x86 mips arm" tags cscope

Signed-off-by: Jike Song <albcamus@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-07 21:44:21 +01:00
Arjan van de Ven 40c8c85a47 bootchart: improve output based on Dave Jones' feedback
Dave Jones, in his blog, had some feedback about the bootchart script:
Primarily his complaint was that shorter delays weren't visualized.

The reason for that was that too small delays will have their labels
mixed up in the graph in an unreadable mess.

This patch has a fix for this; for one, it makes the output wider,
so more will fit.
The second part is that smaller delays are now shown with a
much smaller font for the label; while this isn't per se
readable at a 1:1 zoom, at least you can zoom in with most SVG
viewing applications and see what it is you are looking at.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-07 21:44:21 +01:00
Sam Ravnborg 8b249b6856 fix modules_install via NFS
Rafael reported:

I get the following error from 'make modules_install' on my test boxes:

  HOSTCC  firmware/ihex2fw
/home/rafael/src/linux-2.6/firmware/ihex2fw.c:268: fatal error: opening dependency file firmware/.ihex2fw.d: Read-only file system
compilation terminated.
make[3]: *** [firmware/ihex2fw] Error 1
make[2]: *** [_modinst_post] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2

where the configuration is that the kernel is compiled on a build box
with 'make O=<destdir> -j5' and then <destdir> is mounted over NFS read-only by
each test box (full path to this directory is the same on the build box and on
the test boxes).  Then, I cd into <destdir>, run 'make modules_install' and get
the error above.

The issue turns out to be that we when we install firmware pick
up the list of firmware blobs from firmware/Makefile.
And this triggers the Makefile rules to update ihex2fw.

There were two solutions for this issue:
1) Move the list of firmware blobs to a separate file
2) Avoid ihex2fw rebuild by moving it to scripts

As I seriously beleive that the list of firmware blobs should be
done in a fundamental different way solution 2) was selected.

Reported-and-tested-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: David Woodhouse <dwmw2@infradead.org>
2009-01-07 21:44:20 +01:00
Alain Knaff a26ee60f90 bzip2/lzma: fix built-in initramfs vs CONFIG_RD_GZIP
Impact: Resolves build failures in some configurations

Makes it possible to disable CONFIG_RD_GZIP . In that case, the
built-in initramfs will be compressed by whatever compressor is
available (bzip2 or lzma) or left uncompressed if none is available.

It also removes a couple of warnings which occur when no ramdisk
compression at all is chosen.

It also restores the select ZLIB_INFLATE in drivers/block/Kconfig
which somehow came missing. This is needed to activate compilation of
the stuff in zlib_deflate.

Signed-off-by: Alain Knaff <alain@knaff.lu>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-01-07 00:10:27 -08:00
Andy Whitcroft 57b9c6d9c5 checkpatch: version: 0.26
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:17 -08:00
Andy Whitcroft 21caa13c02 checkpatch: fix the perlcritic errors
Clean up checkpatch using perlcritic.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:17 -08:00
Andy Whitcroft 2b6db5cb65 checkpatch: struct file_operations should normally be const
In the general use case struct file_operations should be a const object.
Check for and warn where it is not.  As suggested by Steven and Ingo.

Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:17 -08:00
Andy Whitcroft b53c8e104e checkpatch: ensure we actually detect if assignments split across lines
When checking for assignments within if conditionals we check the whole of
the condition, but the match is performed using a line constrained regular
expression.  This means we can miss split conditionals or those on the
second line.  Allow the check to span lines.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:17 -08:00
Andy Whitcroft 2d1bafd799 checkpatch: do not report nr_static as a static declaration
Ensure we do not report identifiers containing the word static as static
declarations.  For example this should not be reported as an unecessary
assignement of 0:

	long nr_static = 0;

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:17 -08:00
Andy Whitcroft 4635f4fbaf checkpatch: track #ifdef/#else/#endif when tracking blocks
When picking up a complete statement or block for analysis we cannot
simply track open/close/etc parenthesis we must take into account
preprocessor section boundaries.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:17 -08:00
Andy Whitcroft 8b1b33786b checkpatch: fix continuation detection when handling spacing on operators
We are miscategorising a continuation fragment following an operator
which may lead to us thinking that there is a space after it when there is
not.  Fix this up.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:17 -08:00
Andy Whitcroft 8054576dca checkpatch: loosen spacing on typedef function checks
Loosen spacing checks to correctly detect this valid use of a typedef:

	typedef struct rcu_data *(*get_data_func)(int);

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:17 -08:00
Mike Frysinger 080ba92965 checkpatch: try to catch missing VMLINUX_SYMBOL() in vmlinux.lds.h
Seems like every other release we have someone who updates vmlinux.lds.h
and adds C-visible symbols without VMLINUX_SYMBOL() around them.  So start
checking the file and reject assignments which have plain symbols on
either side.

[apw@canonical.com: soften the check, add tests]
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:16 -08:00
Andy Whitcroft 86f9d059c6 checkpatch: allow parentheses on return for comparisons
It seems to be a common idiom to include braces on conditionals in all
contexts including return.  Allow this exception to the return is not a
function checks.  Reported by Kay Sievers.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:16 -08:00
Wolfram Sang 1e85572697 checkpatch: Add warning for p0-patches
Some people work internally with -p0-patches which has the danger that one
forgets to convert them to -p1 before mainlining.  Bitten myself and seen
p0-patches in mailing lists occasionally, this patch adds a warning to
checkpatch.pl in case a patch is -p0.  If you really want, you can fool
this check to generate false positives, this is why it just spits a
warning.  Making the check 100% proof is trickier than it looks, so let's
start with a version which catches the cases of real use.

[apw@canonical.com: update message language, handle null prefix, add tests]
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:16 -08:00
Andy Whitcroft 2a5a2c2522 checkpatch: update copyrights
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:16 -08:00
Andy Whitcroft 50a7dcfb50 checkpatch: version: 0.25
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:16 -08:00
Andy Whitcroft 65863862ba checkpatch: dissallow spaces between stars in pointer types
Disallow spaces within multiple pointer stars (*) in both casts and
definitions.  Both of these would now be reported:

	(char * *)
	char * *foo;

Also now consistently detects and reports the attributes within these
structures making the error report itself clearer.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:16 -08:00
Andy Whitcroft fae17daed7 checkpatch: comment ends inside strings is most likely not an open comment
When we are detecting whether a comment is open when we start a hunk we
check for the first comment edge in the hunk and assume its inverse.
However if the hunk contains something like below, then we will assume
that a comment was open.  Update this heuristic to see if the comment edge
is obviously within double quotes and ignore it if so:

	foo(" */);

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:15 -08:00
Andy Whitcroft 8e761b04a3 checkpatch: detect multiple bitfield declarations
Detect the colons (:) which make up secondary bitfield declarations and
apply binary colon checks.  For example the following is common idiom:

	int foo:1,
	    bar:1;

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:15 -08:00
Andy Whitcroft 5fe3af119b checkpatch: __weak is an official attribute
Add __weak as an official attribute.  This tends to be used in a location
where the automated attribute detector misses it.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:15 -08:00
Andy Whitcroft 383099fd63 checkpatch: structure member assignments are not complex
Ensure we do not trigger the complex macros checks on structure member
assignment, for example:

	#define foo .bar = 10

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:15 -08:00
Andy Whitcroft 83242e0c23 checkpatch: widen implied comment detection to allow multiple stars
Some people use double star '**' as a comment continuation, and start
comments with complete lines of stars.  Widen the implied comment
detection to pick these up.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:15 -08:00
Andy Whitcroft 721c1cb60e checkpatch: comment detection may miss an implied comment on the last hunk
When detecting implied comments from leading stars we may incorrectly
think we have detected an edge one way or the other when we have not if we
drop off the end of the last hunk.  Fix this up.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:15 -08:00
Andy Whitcroft 691d77b6b8 checkpatch: add checks for in_atomic()
in_atomic() is not for driver use so report any such use as an ERROR.
Also in_atomic() is often used to determine if we may sleep, but it is not
reliable in this use model therefore strongly discourage its use.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:15 -08:00
Arjan van de Ven 5aea50b5c7 scripts: script from kerneloops.org to pretty print oops dumps
We're struggling all the time to figure out where the code came from that
oopsed..  The script below (a adaption from a script used by
kerneloops.org) can help developers quite a bit, at least for non-module
cases.

It works and looks like this:

[/home/arjan/linux]$ dmesg | perl scripts/markup_oops.pl vmlinux
 {
 	struct agp_memory *memory;

 	memory = agp_allocate_memory(agp_bridge, pg_count, type);
 c055c10f:	89 c2                	mov    %eax,%edx
 	if (memory == NULL)
 c055c111:	74 19                	je     c055c12c <agp_allocate_memory_wrap+0x30>
 /* This function must only be called when current_controller != NULL */
 static void agp_insert_into_pool(struct agp_memory * temp)
 {
 	struct agp_memory *prev;

 	prev = agp_fe.current_controller->pool;
 c055c113:	a1 ec dc 8f c0       	mov    0xc08fdcec,%eax
*c055c118:	8b 40 10             	mov    0x10(%eax),%eax     <----- faulting instruction

 	if (prev != NULL) {
 c055c11b:	85 c0                	test   %eax,%eax
 c055c11d:	74 05                	je     c055c124 <agp_allocate_memory_wrap+0x28>
 		prev->prev = temp;
 c055c11f:	89 50 04             	mov    %edx,0x4(%eax)
 		temp->next = prev;
 c055c122:	89 02                	mov    %eax,(%edx)
 	}
 	agp_fe.current_controller->pool = temp;
 c055c124:	a1 ec dc 8f c0       	mov    0xc08fdcec,%eax
 c055c129:	89 50 10             	mov    %edx,0x10(%eax)
 	if (memory == NULL)
 		return NULL;

 	agp_insert_into_pool(memory);

so in this case, we faulted while dereferencing agp_fe.current_controller
pointer, and we get to see exactly which function and line it affects...
Personally I find this very useful, and I can see value for having this
script in the kernel for more-than-just-me to use.

Caveats:
* It only works for oopses not-in-modules
* It only works nicely for kernels compiled with CONFIG_DEBUG_INFO
* It's not very fast.
* It only works on x86

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:12 -08:00
H. Peter Anvin 0f5e2d2484 bzip2/lzma: handle failures from bzip2 and lzma correctly
Impact: Bug fix

If bzip2 or lzma fails (for example, if they aren't installed on the
system), we need to propagate the failure out to "make".  However,
they were masked by being followed by a semicolon.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-01-04 15:53:35 -08:00
Alain Knaff bc22c17e12 bzip2/lzma: library support for gzip, bzip2 and lzma decompression
Impact: Replaces inflate.c with a wrapper around zlib_inflate; new library code

This is the first part of the bzip2/lzma patch

The bzip patch is based on an idea by Christian Ludwig, includes support for
compressing the kernel with bzip2 or lzma rather than gzip. Both
compressors give smaller sizes than gzip.  Lzma's decompresses faster
than bzip2.

It also supports ramdisks and initramfs' compressed using these two
compressors.

The functionality has been successfully used for a couple of years by
the udpcast project

This version applies to "tip" kernel 2.6.28

This part contains:
- changed inflate.c to accomodate rest of patch
- implementation of bzip2 compression (not used at this stage yet)
- implementation of lzma compression (not used at this stage yet)
- Makefile routines to support bzip2 and lzma kernel compression

Signed-off-by: Alain Knaff <alain@knaff.lu>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-01-04 15:53:34 -08:00
Sam Ravnborg b67ff8ce12 kbuild: ignore a few files in headers_check
The new check for asm/types.h and linux/types.h had
a few false positives.

o We cannot let linux/types.h include linux/types.h
o The int-ll64.h and int-ll64.h define the types
  and are included by linux/types.h

Handle this by hardcoding the filenames in the headers_check script.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02 20:43:27 +01:00
Sam Ravnborg 483b41218f kbuild: add checks for include of linux/types in userspace headers
If we see __[us](8|16|32|64) then we must include <linux/types.h>
If wee see include of <asm/types.h> then we recommend <linux/types.h>

Original script from Mike but modified by me.

Cc: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02 20:43:26 +01:00
Sam Ravnborg 521b0c774d kbuild: drop debugging leftover in tags.sh
Noticed by Jike.

Reported-by: "Jike Song" <albcamus@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02 20:43:26 +01:00
Mike Frysinger 4307184f2b kbuild: in headers_install autoconvert asm/inline/volatile to __xxx__
Headers in userspace should be using the __xxx__ form of the asm, inline,
and volatile keywords.  Since people like to revert these things without
realizing what's going on, have the headers install step autoconvert these
keywords.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02 20:43:24 +01:00
Sam Ravnborg 7e557a2509 kbuild: check for leaked CONFIG_ symbols to userspace
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02 20:43:23 +01:00
Mike Frysinger 46b8af50ba headers_check.pl: disallow extern's
Since prototypes with "extern" refer to kernel functions, they make no
sense in userspace, so reject them automatically.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
[sam: made it into a warning]
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02 20:43:22 +01:00
Sam Ravnborg 7826005e5a kconfig: improve error messages for bad source statements
We now say where we detect the second source of a file,
and where we detect a recursively source of the same file.
This makes it easier to fix such errors.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
2009-01-02 20:43:22 +01:00
Sam Ravnborg cf82607a90 kconfig: struct property commented
No functional changes

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02 20:43:21 +01:00
Sam Ravnborg 5b2cf365a8 kconfig: add comments to symbol flags
No functional changes - only comments.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02 20:43:21 +01:00
Sam Ravnborg eaa2a87460 kconfig: explain symbol value defaults
Added a few comments - no functional change.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02 20:43:20 +01:00
Linus Torvalds 96faec945f Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (25 commits)
  allow stripping of generated symbols under CONFIG_KALLSYMS_ALL
  kbuild: strip generated symbols from *.ko
  kbuild: simplify use of genksyms
  kernel-doc: check for extra kernel-doc notations
  kbuild: add headerdep used to detect inclusion cycles in header files
  kbuild: fix string equality testing in tags.sh
  kbuild: fix make tags/cscope
  kbuild: fix make incompatibility
  kbuild: remove TAR_IGNORE
  setlocalversion: add git-svn support
  setlocalversion: print correct subversion revision
  scripts: improve the decodecode script
  scripts/package: allow custom options to rpm
  genksyms: allow to ignore symbol checksum changes
  genksyms: track symbol checksum changes
  tags and cscope support really belongs in a shell script
  kconfig: fix options to check-lxdialog.sh
  kbuild: gen_init_cpio expands shell variables in file names
  remove bashisms from scripts/extract-ikconfig
  kbuild: teach mkmakfile to be silent
  ...
2008-12-28 15:13:48 -08:00
Jan Beulich 9bb482476c allow stripping of generated symbols under CONFIG_KALLSYMS_ALL
Building upon parts of the module stripping patch, this patch
introduces similar stripping for vmlinux when CONFIG_KALLSYMS_ALL=y.
Using CONFIG_KALLSYMS_STRIP_GENERATED reduces the overhead of
CONFIG_KALLSYMS_ALL from 245k/310k to 65k/80k for the (i386/x86-64)
kernels I tested with.

The patch also does away with the need to special case the kallsyms-
internal symbols by making them available even in the first linking
stage.

While it is a generated file, the patch includes the changes to
scripts/genksyms/keywords.c_shipped, as I'm unsure what the procedure
here is.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-19 22:47:10 +01:00
Jan Beulich ad7a953c52 kbuild: strip generated symbols from *.ko
This patch changes the way __crc_ symbols are being resolved from
using ld to do so to using the assembler, thus allowing these symbols
to be marked local (the linker creates then as global ones) and hence
allow stripping (for modules) or ignoring (for vmlinux) them. While at
this, also strip other generated symbols during module installation.

One potentially debatable point is the handling of the flags passeed
to gcc when translating the intermediate assembly file into an object:
passing $(c_flags) unchanged doesn't work as gcc passes --gdwarf2 to
gas whenever is sees any -g* option, even for -g0, and despite the
fact that the compiler would have already produced all necessary debug
info in the C->assembly translation phase. I took the approach of just
filtering out all -g* options, but an alternative to such negative
filtering might be to have a positive filter which might, in the ideal
case allow just all the -Wa,* options to pass through.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-19 22:41:15 +01:00
Sam Ravnborg 37a8d9f67f kbuild: simplify use of genksyms
Avoid duplicating long list of options in two places

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-19 22:00:58 +01:00
Randy Dunlap a1d94aa556 kernel-doc: check for extra kernel-doc notations
Add functionality to check for function parameters or structure (or
union/typedef/enum) field members that are described in kernel-doc but
are not part of the expected (declared) parameters or structure.
These generate warnings that are called "Excess" descriptions.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-19 18:27:19 +01:00
Vegard Nossum 179efcb47d kbuild: add headerdep used to detect inclusion cycles in header files
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-18 20:18:04 +01:00
Jiri Slaby a6ba0cb35d kbuild: fix string equality testing in tags.sh
Test of string equality in shells is =, not C-like ==.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-14 00:15:09 +01:00
Jiri Slaby 709cc372ca kbuild: fix make tags/cscope
- fix combining O=... and tags
- don't allow * expansion during sh function calls

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
[sam: use KBUILD_SRC to check if we use O=...]
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-14 00:15:09 +01:00
Frederic Weisbecker a0343e8231 tracing/function-graph-tracer: add a new .irqentry.text section
Impact: let the function-graph-tracer be aware of the irq entrypoints

Add a new .irqentry.text section to store the irq entrypoints functions
inside the same section. This way, the tracer will be able to signal
an interrupts triggering on output by recognizing these entrypoints.

Also, make this section recordable for dynamic tracing.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-12 11:14:07 +01:00
Robert P. J. Day abf681ce5b kbuild: remove TAR_IGNORE
Given that there is no usage of a TAR_IGNORE variable remove it

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-05 19:50:36 +01:00
Ingo Molnar b8307db247 Merge commit 'v2.6.28-rc7' into tracing/core 2008-12-04 09:07:19 +01:00
Peter Korsgaard ff80aa97c9 setlocalversion: add git-svn support
Print svn revision in addition to git info on git-svn repos.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 22:58:30 +01:00
Peter Korsgaard 167d6a02c1 setlocalversion: print correct subversion revision
Output svn revision of latest change, instead of repo revision as thats
what we're interested in (especially when working on a branch/tag).

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 22:58:29 +01:00
Arjan van de Ven 846442c8dd scripts: improve the decodecode script
kerneloops.org has been using an improved "decodecode" script,
specifically it has a special marker that shows which line in the assembly
the oops happened at, like this:

  20:	83 e0 03             	and    $0x3,%eax
  23:	09 d8                	or     %ebx,%eax
  25:	85 db                	test   %ebx,%ebx
  27:	89 02                	mov    %eax,(%edx)
  29:	74 0f                	je     0x3a
  2b:*	3b 73 04             	cmp    0x4(%ebx),%esi     <-- trapping instruction
  2e:	75 05                	jne    0x35
  30:	89 53 04             	mov    %edx,0x4(%ebx)
  33:	eb 07                	jmp    0x3c
  35:	89 53 08             	mov    %edx,0x8(%ebx)

this patch updates the kernel copy to also have this functionality.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Reviewed-by: WANG Cong <wangcong@zeuux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 22:36:39 +01:00
Jeremy Kerr c39dd50240 scripts/package: allow custom options to rpm
Add a RPMOPTS make variable to allow arbitrary options to be passed
to rpm during 'make rpm-pkg'. For example:

 make RPMOPTS="--define '_topdir /home/jk/rpm'" rpm-pkg

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 22:35:06 +01:00
Andreas Gruenbacher 5dae9a550a genksyms: allow to ignore symbol checksum changes
This adds an "override" keyword for use in *.symvers / *.symref files.
When a symbol is overridden, the symbol's old definition will be used for
computing checksums instead of the new one, preserving the previous
checksum.  (Genksyms will still warn about the change.)

This is meant to allow distributions to hide minor actual as well as fake
ABI changes.  (For example, when extra type information becomes available
because additional headers are included, this may change checksums even
though none of the types used have actully changed.)

This approach also allows to get rid of "#ifdef __GENKSYMS__" hacks in the
code, which are currently used in some vendor kernels to work around
checksum changes.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 22:33:12 +01:00
Andreas Gruenbacher 64e6c1e123 genksyms: track symbol checksum changes
Sometimes it is preferable to avoid changes of exported symbol checksums
(to avoid breaking externally provided modules).  When a checksum change
occurs, it can be hard to figure out what caused this change: underlying
types may have changed, or additional type information may simply have
become available at the point where a symbol is exported.

Add a new --reference option to genksyms which allows it to report why
checksums change, based on the type information dumps it creates with the
--dump-types flag.  Genksyms will read in such a dump from a previous run,
and report which symbols have changed (and why).

The behavior can be controlled for an entire build as follows: If
KBUILD_SYMTYPES is set, genksyms uses --dump-types to produce *.symtypes
dump files.  If any *.symref files exist, those will be used as the
reference to check against.  If KBUILD_PRESERVE is set, checksum changes
will fail the build.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 22:33:11 +01:00
Sam Ravnborg a680eedc6c tags and cscope support really belongs in a shell script
as they do not benefit from the make functionality.

Moving the support to a shell script has several benefits:
- The readability of the code has increased a lot
- More people is able to extend the tags support
- We see less changes to the top-level Makefile

The shell script version includes improvements from:
Alexey Dobriyan <adobriyan@gmail.com> (jump to kconfig symbols)
Alexey Dobriyan <adobriyan@gmail.com> (drop ./ in paths)
Ian Campbell <ijc@hellion.org.uk> (simplified find algorithms)

This version has a few caveats:
=> It does not support ALLSOURCE_ARCHS
   - it is easy to add if it is really used
=> It assumes all archs have moved to arch/$ARCH/include
   - until that happens we have a few additional hits in the archs

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Tested-by: Ian Campbell <ijc@hellion.org.uk>
2008-12-03 22:24:13 +01:00
Sam Ravnborg f6682f9157 kconfig: fix options to check-lxdialog.sh
As noted by Bernhard - fix it up.

Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 22:11:14 +01:00
Werner Almesberger efddd79512 remove bashisms from scripts/extract-ikconfig
unbashify-extract-ikconfig.patch

scripts/extract-ikconfig contains a lot of gratuituous bashisms,
which make it fail if /bin/sh isn't bash. This patch replaces them
with regular Bourne shell constructs.

Signed-off-by: Werner Almesberger <werner@openmoko.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com> # as file author
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 21:32:02 +01:00
Sam Ravnborg d2301249e2 kbuild: teach mkmakfile to be silent
With this fix a "make -s" is now really silent

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 21:32:02 +01:00
Mike Frysinger fd54f50284 kbuild: use KECHO convenience echo
Convert a few echos in the build system to new $(kecho) so we get correct
output according to build verbosity.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
[sam: added kecho in a few more places for O=... builds]
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 21:32:01 +01:00
Mike Frysinger 5410ecc0de kbuild: introduce $(kecho) convenience echo
There is a bunch of places in the build system where we do 'echo' to show
some nice status lines.  This means we still get output when running in
silent mode.  So declare a new KECHO variable that only does 'echo' when we
are in a suitable verbose build mode.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
[sam: added Documentation]
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 21:32:00 +01:00
Mike Frysinger d03fab43c5 kbuild: kill output in silent mode of mkcompile_h
The mkcompile_h script does `echo` regardless of silent mode the make is
running at, so have it respect $quiet from kbuild and only echo when not in
silent mode.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 21:32:00 +01:00
Sam Ravnborg d8672b40d3 kbuild: expand -I in KBUILD_CPPFLAGS
kbuild failed to expand include flags in KBUILD_CPPFLAGS
resulting in code like this in arch Makefiles:

ifeq ($(KBUILD_SRC),)
KBUILD_CPPFLAGS += -Iinclude/foo
else
KBUILD_CPPFLAGS += -I$(srctree)/include/foo
endif

Move use of LINUXINCLUDE into Makefile.lib to allow
us to expand -I directives of KBUILD_CPPFLAGS so
we can avoid the above code.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 21:31:59 +01:00
Sam Ravnborg 5b91c33cf2 kbuild: fix -I option expansion with O=... builds
When adding extra -I options with O=... we could
end up in a situation where there were no parameters to -I.
So we had a commandline that looked like this:

    ... -I -Wall ...

This had the undesired side effect that gcc assumed "-Wall"
was a path to look for include files so this options was
effectively ignored.

This happens only when we build the generated module.mod.c files
as part of the final modules builds and is as such harmless
with current kbuild.
This bug was exposed when we rearranged the options to gcc.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-12-03 21:22:21 +01:00
Randy Dunlap ced69090c5 kernel-doc: handle varargs cleanly
The method for listing varargs in kernel-doc notation is:
 * @...: these arguments are printed by the @fmt argument

but scripts/kernel-doc is confused:  it always lists varargs as:
	...	variable arguments
and ignores the @...: line's description, but then prints that
line after the list of function parameters as though it's
not part of the function parameters.

This patch makes kernel-doc print the supplied @...  description if it is
present; otherwise a boilerplate "variable arguments" is printed.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-01 19:55:25 -08:00
Ingo Molnar c7cc773076 Merge branches 'tracing/blktrace', 'tracing/ftrace', 'tracing/function-graph-tracer' and 'tracing/power-tracer' into tracing/core 2008-11-27 10:56:13 +01:00
Arjan van de Ven f3f47a6768 tracing: add "power-tracer": C/P state tracer to help power optimization
Impact: new "power-tracer" ftrace plugin

This patch adds a C/P-state ftrace plugin that will generate
detailed statistics about the C/P-states that are being used,
so that we can look at detailed decisions that the C/P-state
code is making, rather than the too high level "average"
that we have today.

An example way of using this is:

 mount -t debugfs none /sys/kernel/debug
 echo cstate > /sys/kernel/debug/tracing/current_tracer
 echo 1 > /sys/kernel/debug/tracing/tracing_enabled
 sleep 1
 echo 0 > /sys/kernel/debug/tracing/tracing_enabled
 cat /sys/kernel/debug/tracing/trace | perl scripts/trace/cstate.pl > out.svg

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-26 08:29:32 +01:00
Liming Wang d144d5ee6a ftrace: adding other non-leaving .text sections
Impact: widen the scope of recordmcount.pl

Besides .text section, there are three .text sections that won't
be freed after kernel booting. They are: .sched.text, .spinlock.text
and .kprobes.text, which contain functions we can trace. But the last
section ".kprobes.text" is particular, which has been marked as "notrace",
we ignore it. Thus we add other two sections.

Signed-off-by: Liming Wang <liming.wang@windriver.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-26 03:48:37 +01:00
Jim Radford e58918ab9d ftrace: scripts/recordmcount.pl support for ARM
Impact: extend scripts/recordmcount.pl to ARM

Arm uses %progbits instead of @progbits and requires only 4 byte alignment.

[ Thanks to Sam Ravnborg for mentioning that ARM uses %progbits ]

Signed-off-by: Jim Radford <radford@galvanix.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-23 11:43:32 +01:00
Matt Fleming 3a3d04aed0 ftrace: specify $alignment for sh architecture
Impact: extend scripts/recordmcount.pl with default alignment for SH

Set $alignment=2 for the sh architecture so that a ".align 2" directive
will be emitted for all __mcount_loc sections. Fix a whitspace error
while I'm here (converted spaces to tabs).

Signed-off-by: Matt Fleming <mjf@gentoo.org>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-23 11:42:29 +01:00
Steven Rostedt c204f7264c ftrace: create default variables for archs in recordmcount.pl
Impact: cleanup of recordmcount.pl

Now that more architectures are being ported to the MCOUNT_RECORD
method, there is no reason to have each declare their own arch
specific variable if most of them share the same value. This patch
creates a set of default values for the arch specific variables
based off of i386.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-23 11:37:25 +01:00
Steven Rostedt 42e007d040 ftrace: add support for powerpc to recordmcount.pl script
Impact: Add PowerPC port to recordmcount.pl script

This patch updates the recordmcount.pl script to process
PowerPC.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-23 11:37:08 +01:00
Matt Fleming 0da85c09b4 sh: dynamic ftrace support.
First cut at dynamic ftrace support.

[
  Steven Rostedt - only updated the recordmcount.pl file.
    There are updates for PowerPC that will conflict with this,
    and we need to base off of these changes.
]

Signed-off-by: Matt Fleming <mjf@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-23 11:36:39 +01:00
Stephen Hemminger d1aaf8cf8a tracing/fastboot: put error message on stderr
Since this scripts output is usually redirected, put error messages
on standard error and exit with error code if no data is found.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-13 19:58:22 +01:00
Stephen Hemminger 68f96c0c88 tracing/fastboot: fix perlcritic warning
Impact: cleanup

Fix the following warning from the perl syntax checking tool perlcritic.
This tool is a lint like tool that checks for perl best practices.

Loop iterator is not lexical at line 113, column 1.
See page 108 of PBP.  (Severity: 5)

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-12 19:22:57 +01:00
Ingo Molnar e0cb4ebcd9 Merge branch 'tracing/urgent' into tracing/ftrace
Conflicts:
	kernel/trace/trace.c
2008-11-11 09:40:18 +01:00
Jonathan McDowell bf1b36445d kbuild: Fixup deb-pkg target to generate separate firmware deb
The below is a simplistic fix for "make deb-pkg"; it splits the
firmware out to a linux-firmware-image package and adds an
(unversioned) Suggests to the linux package for this firmware.

Signed-Off-By: Jonathan McDowell <noodles@earth.li>
Acked-by: Frans Pop <elendil@planet.nl>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-11-09 23:02:58 +01:00
Matt Fleming 7d5222a6af ftrace: align __mcount_loc sections
Impact: add alignment option for recordmcount.pl script

Align the __mcount_loc sections so that architectures with strict
alignment requirements need not worry about performing unaligned
accesses.

This fixes an issue where I was seeing unaligned accesses, which are not
supported on our architecture (the results of an unaligned access are
undefined).

Signed-off-by: Matt Fleming <matthew.fleming@imgtec.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-08 09:51:44 +01:00
Ingo Molnar 36609469c8 Merge commit 'v2.6.28-rc3' into tracing/ftrace 2008-11-03 09:11:13 +01:00
Steven Rostedt b3acf29afd ftrace, kbuild: condense recordmcount.pl parameter code
Impact: cleanup

Sam Ravnborg pointed out that I could condense the code for the parameters of
recordmcount.pl by using an $(if ...) condition.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-31 00:38:34 +01:00
Ingo Molnar e1e302d8a9 Merge branch 'linus' into tracing/ftrace 2008-10-31 00:38:21 +01:00
Jeremy Huntwork 15a2ee74d2 Fix incompatibility with versions of Perl less than 5.6.0
Fix headers_install.pl and headers_check.pl to be compatible with versions
of Perl less than 5.6.0.  It has been tested with Perl 5.005_03 and 5.8.8.
I realize this may not be an issue for most people, but there will still
be some that hit it, I imagine.  There are three basic issues:

1. Prior to 5.6.0 open() only used 2 arguments, and the versions of
the scripts in 2.6.27.1 use 3.
2. 5.6.0 also introduced the ability to use uninitialized scalar
variables as file handles, which the current scripts make use of.
3. Lastly, 5.6.0 also introduced the pragma 'use warnings'. We can use
the -w switch and be backwards compatible.

Signed-off-by: Jeremy Huntwork <jhuntwork@lightcubesolutions.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-10-29 22:38:37 +01:00
Trent Piepho f03b283f08 kbuild: tag with git revision when git describe is missing
setlocalversion used to use an abbreviated git commit sha1 to generate the
tag.  This was changed in commit d882421f4e
"kbuild: change CONFIG_LOCALVERSION_AUTO to use a git-describe-ish format"
to use git describe to come up with a tag.  Which is nice, but git describe
sometimes can't describe the revision.
Commit 56b2f0706d ("setlocalversion: do not
describe if there is nothing to describe") addressed this, but there is still
no tag generated.

So, generate a plain abbreviated sha1 tag like setlocalversion used to when
git describe comes up short.

Signed-off-by: Trent Piepho <tpiepho@freescale.com>
CC: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-10-29 22:25:36 +01:00
Ashutosh Naik e6e6733ed9 kbuild: prevent modpost from looking for a .cmd file for a static library linked into a module
This fixes a compile time warning which occurs whenever a static library
is linked into a kernel module.  MODPOST tries to look for a
".<modulename>.cmd" file to look for its dependencies, but that file
doesn't exist or get generated for static libraries.

This patch prevents modpost from looking for a .cmd file when a module is
linked with a static library

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Ashutosh Naik <ashutosh.naik@gmail.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-10-29 22:02:10 +01:00
Peter Volkov 92f83cc56e kbuild: fix KBUILD_EXTRA_SYMBOLS
Taken from http://bugzilla.kernel.org/show_bug.cgi?id=11567

If you even define KBUILD_EXTRA_SYMBOLS in Makefile it will not be expanded
into command line argument for modpost.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-10-29 22:02:09 +01:00
Thomas Volpini bd8f89ff47 scripts/checksyscalls.sh: fix for non-gnu sed
Make the checksyscalls script work even on systems where sed is non-gnu.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-10-29 22:02:08 +01:00
Jeremy Kerr 13797b77d4 scripts/package: don't break if %{_smp_mflags} isn't set
Currently, if we do a 'make rpm-pkg' without the _smp_mflags rpm macro
defined, the build fails with:

  [snip]
  Executing(%build): /bin/bash -e /var/tmp/rpm-tmp.67959
  + umask 022
  + cd /home/jk/devel/kernel-snapshot/rpm/BUILD
  + cd kernel-2.6.26
  + make clean
  + make '%{_smp_mflags}'
  make[3]: *** No rule to make target `%{_smp_mflags}'.  Stop.
  error: Bad exit status from /var/tmp/rpm-tmp.67959 (%build)

This change uses the 'null if not set' reference to the _smp_mflags
macro instead.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-10-29 22:02:08 +01:00
Mike Frysinger e3da2fb712 kbuild: setlocalversion: dont include svn change count
The number of pending changes is pretty useless, so encoding it into the
version is just annoying by the constant shuffle in corresponding modules.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-10-29 22:02:07 +01:00
Evgeniy Manachkin 46dca86cb9 kbuild: mkspec - fix build rpm
This is patch to fix incorrect mkspec script to make rpm correctly at 2.6.27 vanilla kernel.
This is regression in 2.6.27. 2.6.26 make rpm work good.
In 2.6.27 'make rpm' say error from rpmbuild "Many unpacked files (*.fw)."

Signed-off-by: Evgeniy Manachkin <sfstudio@mail.ru>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Stable <stable@kernel.org>
2008-10-29 22:02:06 +01:00
Linus Torvalds e946217e4f Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits)
  ftrace: fix current_tracer error return
  tracing: fix a build error on alpha
  ftrace: use a real variable for ftrace_nop in x86
  tracing/ftrace: make boot tracer select the sched_switch tracer
  tracepoint: check if the probe has been registered
  asm-generic: define DIE_OOPS in asm-generic
  trace: fix printk warning for u64
  ftrace: warning in kernel/trace/ftrace.c
  ftrace: fix build failure
  ftrace, powerpc, sparc64, x86: remove notrace from arch ftrace file
  ftrace: remove ftrace hash
  ftrace: remove mcount set
  ftrace: remove daemon
  ftrace: disable dynamic ftrace for all archs that use daemon
  ftrace: add ftrace warn on to disable ftrace
  ftrace: only have ftrace_kill atomic
  ftrace: use probe_kernel
  ftrace: comment arch ftrace code
  ftrace: return error on failed modified text.
  ftrace: dynamic ftrace process only text section
  ...
2008-10-28 09:52:25 -07:00
Frederic Weisbecker f4a2a0d9a4 ftrace: add a script to produce a hierarchical view of a function trace
This script parses a function trace and then produces a hierarchical
view of the function call stack after processing it into a tree.

Changes on V2 thanks to the trace sent by Steven:

- Support both the files "trace" and "trace_pipe" (comments and space
  differences)

- Correct the mini HOW-TO at the beginning.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-27 11:00:07 +01:00
Ingo Molnar 4944dd62de Merge commit 'v2.6.28-rc2' into tracing/urgent 2008-10-27 10:50:54 +01:00
Randy Dunlap 890c78c2d6 kernel-doc: allow more whitespace in macros
Allow macros that are annotated with kernel-doc to contain whitespace
between the '#' and "define".  It's valid and being used, so allow it.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-26 16:32:09 -07:00
Al Viro ce97e13e52 fix allmodconfig breakage
If you use KCONFIG_ALLCONFIG (even with empty file) you get broken
allmodconfig/allyesconfig; CONFIG_MODULES gets turned off, with obvious
massive fallout.

Breakage had been introduced when conf_set_all_new_symbols() got used
for allmodconfig et.al.

What happens is that sym_calc_value(modules_sym) done in
conf_read_simple() sets SYMBOL_VALID on both modules_sym and MODULES.
When we get to conf_set_all_new_symbols(), we set sym->def[S_DEF_USER]
on everything, but it has no effect on sym->curr for the symbols that
already have SYMBOL_VALID - these are stuck.

Solution: use sym_clear_all_valid() in there.  Note that it makes
reevaluation of modules_sym redundant - sym_clear_all_valid() will do
that itself.

[ Fixes http://bugzilla.kernel.org/show_bug.cgi?id=11512, says Alexey ]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-26 09:35:05 -07:00
Linus Torvalds 5579a782ad Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  math-emu: Fix thinko in _FP_DIV
  math-emu: Fix signalling of underflow and inexact while packing result.
  sparc: Add checkstack support
  sparc: correct section of current_pc()
  sparc: correct section of apc_no_idle
  sparc64: Fix race in arch/sparc64/kernel/trampoline.S
2008-10-23 19:19:14 -07:00
Steven Rostedt 34698bcbdf ftrace: dynamic ftrace process only text section
The text section stays in memory without ever leaving. With the exception
of modules, but modules know how to handle that case. With the dynamic
ftrace tracer, we need to make sure that it does not try to modify code
that no longer exists. The only safe section is .text.

This patch changes the recordmcount script to only record the mcount calls
in the .text sections.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-23 15:58:20 +02:00
Steven Rostedt dce9d18add ftrace: handle generic arch calls
The recordmcount script requires that the actual arch is passed in.
This works well when ARCH=i386 or ARCH=x86_64 but does not handle the
case of ARCH=x86.

This patch adds a parameter to the function to pass in the number of
bits of the architecture. So that it can determine if x86 should be
run for x86_64 or i386 archs.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-23 15:58:19 +02:00
Al Viro 61bee20445 x86, um: get rid of arch/um/Kconfig.arch
Teach scripts/kconfig/Makefile and top-level Makefile that arch/*/Makefile
is allowed to say Kconfig := <whatever I want instead of arch/blah/Kconfig>.
Rewrite arch/um/Kconfig and arch/um/Kconfig.<subarch> so that the latter
would be top-level one (and include the pieces of the former).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22 22:55:23 -07:00
Al Viro bb8985586b x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22 22:55:20 -07:00
Martin Habets d41e2d7317 sparc: Add checkstack support
Add sparc support to checkstack.

Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-22 21:53:49 -07:00
Alan Jenkins 06d1cd267c tracing/fastboot: fix row order in bootgraph.pl
When bootgraph.pl parses a file, it gives one row for each initcall's
pid.  But they are displayed in random (perl hash) order.  Let's
sort the pids by the start time of their first initcall instead.

This helps trace module initcalls, where each has a separate pid.
bootgraph.pl will show module initcalls during the initramfs; it may
also be adapted to show subsequent module initcalls.

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Acked-by: Frédéric Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 16:37:25 +02:00
Alan Jenkins 2a813f8cd8 tracing/fastboot: fix bootgraph.pl to run with "use strict"
As a perl novice, I would prefer to have the benefit of the interpreters'
wisdom.  It turns out there were already some warnings, so let's fix them.

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Acked-by: Frédéric Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-22 16:37:12 +02:00
Linus Torvalds 92b29b86fe Merge branch 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (131 commits)
  tracing/fastboot: improve help text
  tracing/stacktrace: improve help text
  tracing/fastboot: fix initcalls disposition in bootgraph.pl
  tracing/fastboot: fix bootgraph.pl initcall name regexp
  tracing/fastboot: fix issues and improve output of bootgraph.pl
  tracepoints: synchronize unregister static inline
  tracepoints: tracepoint_synchronize_unregister()
  ftrace: make ftrace_test_p6nop disassembler-friendly
  markers: fix synchronize marker unregister static inline
  tracing/fastboot: add better resolution to initcall debug/tracing
  trace: add build-time check to avoid overrunning hex buffer
  ftrace: fix hex output mode of ftrace
  tracing/fastboot: fix initcalls disposition in bootgraph.pl
  tracing/fastboot: fix printk format typo in boot tracer
  ftrace: return an error when setting a nonexistent tracer
  ftrace: make some tracers reentrant
  ring-buffer: make reentrant
  ring-buffer: move page indexes into page headers
  tracing/fastboot: only trace non-module initcalls
  ftrace: move pc counter in irqtrace
  ...

Manually fix conflicts:
 - init/main.c: initcall tracing
 - kernel/module.c: verbose level vs tracepoints
 - scripts/bootgraph.pl: fallout from cherry-picking commits.
2008-10-20 13:35:07 -07:00
Dave Jones f4432c5cae Update email addresses.
Update assorted email addresses and related info to point
to a single current, valid address.

additionally
- trivial CREDITS entry updates. (Not that this file means much any more)
- remove arjans dead redhat.com address from powernow driver

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 12:50:03 -07:00
Linus Torvalds db7a6d8d01 Update .gitignore files for generated targets
The generated 'capflags.c' file wasn't properly ignored, and the list of
files in scripts/basic/ wasn't up-to-date.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 11:24:31 -07:00
Linus Torvalds 26e9a39777 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (25 commits)
  staging: at76_usb wireless driver
  Staging: workaround build system bug
  Staging: Lindent sxg.c
  Staging: SLICOSS: Call pci_release_regions at driver exit
  Staging: SLICOSS: Fix remaining type names
  Staging: SLICOSS: Fix warnings due to static usage
  Staging: SLICOSS: lots of checkpatch fixes
  Staging: go7007 v4l fixes
  Staging: Fix gcc warnings in sxg
  Staging: add echo cancelation module
  Staging: add wlan-ng prism2 usb driver
  Staging: add w35und wifi driver
  Staging: USB/IP: add host driver
  Staging: USB/IP: add client driver
  Staging: USB/IP: add common functions needed
  Staging: add the go7007 video driver
  Staging: add me4000 pci data collection driver
  Staging: add me4000 firmware files
  Staging: add sxg network driver
  Staging: add Alacritech slicoss network driver
  ...

Fixed up conflicts due to taint flags changes and MAINTAINERS cleanup in
MAINTAINERS, include/linux/kernel.h and kernel/panic.c.
2008-10-17 09:50:12 -07:00
Linus Torvalds c813b4e16e Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (46 commits)
  UIO: Fix mapping of logical and virtual memory
  UIO: add automata sercos3 pci card support
  UIO: Change driver name of uio_pdrv
  UIO: Add alignment warnings for uio-mem
  Driver core: add bus_sort_breadthfirst() function
  NET: convert the phy_device file to use bus_find_device_by_name
  kobject: Cleanup kobject_rename and !CONFIG_SYSFS
  kobject: Fix kobject_rename and !CONFIG_SYSFS
  sysfs: Make dir and name args to sysfs_notify() const
  platform: add new device registration helper
  sysfs: use ilookup5() instead of ilookup5_nowait()
  PNP: create device attributes via default device attributes
  Driver core: make bus_find_device_by_name() more robust
  usb: turn dev_warn+WARN_ON combos into dev_WARN
  debug: use dev_WARN() rather than WARN_ON() in device_pm_add()
  debug: Introduce a dev_WARN() function
  sysfs: fix deadlock
  device model: Do a quickcheck for driver binding before doing an expensive check
  Driver core: Fix cleanup in device_create_vargs().
  Driver core: Clarify device cleanup.
  ...
2008-10-16 12:40:26 -07:00
Andy Whitcroft 6e144ee546 checkpatch: version: 0.24
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:38 -07:00
Andy Whitcroft 3fef12d6cb checkpatch: allow for comments either side of a brace on case
When specifying case we may have comments and/or braces at the end without
actually having a 'statement'.  Allow for these to occur in any order.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft 740504c61f checkpatch: suspect indent handle macro continuation
When ignoring a macro in the middle of a conditional, we need to ignore
the macro start and any continuation lines.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft bb44ad39c8 checkpatch: trailing statements ensure we report the end of the line
When reporting some complex trailing statements we report only the
starting line of the error, that tends to imply the shown line is in error
and confuse the reader.  As we do know where the actual error is report
that line too with an appropriate gap marker where applicable.

    #ERROR: trailing statements should be on next line
    #1: FILE: Z202.c:1:
    +       for (pbh = page_buffers(bh->b_page); pbh != bh;
    +               pbh = pbh->b_this_page, key++);
    #ERROR: trailing statements should be on next line
    #4: FILE: Z202.c:4:
    +       for (pbh = page_buffers(bh->b_page);
    [...]
    +               pbh = pbh->b_this_page, key++);

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft 4801205864 checkpatch: DEFINE_ macros are real definitions for exports
When we want to confirm an export is directly after its definition we need
to allow for DEFINE_ style macros.  Add these to the execeptions.
Refactor the exceptions.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft bf30d6ede0 checkpatch: complex macros checks miss square brackets
We are missing 'simple' values which include square brackets.  Refactor to
ensure we handle nesting correctly and detect these simple forms.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft f16fa28f7b checkpatch: suspect code indent must stop at #else/#elif
When we hit and #else or #elif we know we are meeting an alternative piece
of code.  All bets are off on indent if we did not see the open of the
control so stop checking.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft 8ed22cad9c checkpatch: pull out known acceptable typedefs
Within the type checker we have a number of common kernel types which must
be implemented as typedefs.  Pull those out so that we can use the same
expressions to trigger exclusions.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft afbe8d283b checkpatch: accept any sized le/be type
We are likely going to have 24 bit types.  Expand the type matcher to
match any size.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft b132e5d586 checkpatch: macros which define structure members are not complex
We often see macros which define structure members, these are not complex
and necessarily do not have braces or brackets.  For example:

    #define _PLIST_HEAD_INIT(head)                      \
        .prio_list = LIST_HEAD_INIT((head).prio_list),  \
        .node_list = LIST_HEAD_INIT((head).node_list)

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft 170d3a2268 checkpatch: handle do without braces if we have enough context
If we have sufficient context detect and handle do without braces ({).
Else these incorrectly trigger a trailing statements error for the
associated while.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft a6a8406282 checkpatch: labels are not possible types
A label is not a candidate for a possible type.  Exclude them.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:37 -07:00
Andy Whitcroft 0776e59460 checkpatch: do is not a possible type
A do without braces '{' may trigger a false possible type 'do' and then
this may be interpreted as an external definition of foo():

	do
		foo();
	while (bar);

Add do to the type exclusions.  Fix up tests so we can check for them.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:36 -07:00
Andy Whitcroft 5fdd23acf9 checkpatch: version: 0.23
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:36 -07:00
Andy Whitcroft 306708547b checkpatch: ensure we only apply checks to the lines within hunks
We should only apply source checks to lines within hunks.  Checks which
are anchored in the context may falsly trigger in the commentory.  Ensure
they only match within valid hunk lines.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:36 -07:00
Andy Whitcroft 6f779c18ca checkpatch: suspect indent count condition lines correctly
Correct calculation of the number of lines of condition where we have
suspect indent.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:36 -07:00
Andy Whitcroft 5368df20fb checkpatch: check line endings in text format files
Firmware may be included in the kernel as .ihex files.  These are
inherantly text, but not source.  The line ending checks are applicable to
these kinds of file, allow just these checks to apply to all files.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:36 -07:00
Andy Whitcroft 81bc0e0202 checkpatch: handle comment/quote nesting correctly
Ensure that a close comment cannot incorrectly trigger in the middle of a
string.  Reported by Jaswinder Singh.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Cc: Jaswinder Singh <jaswinder@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:36 -07:00
Andy Whitcroft dea33496dd checkpatch: suppress errors triggered by short patch
When the last hunk of a patch is short it will trigger errors from
checkpatch:

    Use of uninitialized value in pattern match (m//)
	    at /usr/local/bin/checkpatch.pl line 394.
    Use of uninitialized value in concatenation (.) or string
	    at /usr/local/bin/checkpatch.pl line 397.
    Use of uninitialized value in pattern match (m//)

Avoid touching beyond the last line.  Reported by Julien Brunel.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Cc: Julien Brunel <brunel@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:36 -07:00
Andy Whitcroft a1080bf808 checkpatch: case/default checks should only check changed lines
We should only be checking changes lines for the trailing statement check
on case/default statements.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:36 -07:00
Andy Whitcroft dea79cd3df checkpatch: version: 0.22
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft b9ea10d691 checkpatch: perform indent checks on perl
So that we eat our own dog food ensure the indent checks apply to perl
too.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft f055663c58 checkpatch: report the correct lines for single statement blocks
Report the correct lines for single statement blocks.  Currently we are
reporting the right number of lines, but not skipping the negative lines.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft 2a1bc5d5c5 checkpatch: %Lx tests should hand %% as a literal
Ensure that we handle literal %'s correctly when adjacent to a %Lx.

	%Lx	bad
	%%Lx	good
	%%%Lx	bad

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft 9bd49efe4e checkpatch: suspect indent -- skip over preprocessor, label and blank lines
We should skip over and check the lines which follow preprocessor
statements, labels, and blank lines.  These all have legitimate reasons to
be indented differently.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft 4d001e4d88 checkpatch: report the real first line of all suspect indents
We are currently only reporting syspect indents if the conditional is
modified but the indent missmatch could be generated by the body changing,
make sure we catch both.  Also only report the first line of the body, and
more importantly make sure we report the raw copy of the line.  Finally
report the indent levels to make it easier to understand what is wrong.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft 6ecd967444 checkpatch: report any absolute references to kernel source files
Absolute references to kernel source files are generally only useful
locally to the originator of the patch.  Check for any such references and
report them.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft e09dec4831 checkpatch: reduce warnings for #include of asm/foo.h to check from arch/bar.c
It is much more likely that an architecture file will want to directly
include asm header files.  Reduce this WARNING to a CHECK when the
referencing file is in the arch directory.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft c1ab33269a checkpatch: include/asm checks should be anchored
It is possible to have other include/asm paths within the tree which are
not subject to the do not edit checks.  Ignore those.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft 01fa91471e checkpatch: fix up comment checks search to scan the entire block
We are not counting the lines in the block correctly which causes the
comment scan to stop prematurly and thus miss comments which end at the
end of the block.  Fix this up.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft 636d140a80 checkpatch: complex macros -- fix up extension handling
Only pull in new extension lines where the current contents ends with a \.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft 24e1d81acd checkpatch: ____cacheline_aligned et al are modifiers
Add the cacheline alignment modifiers to the attribute lists.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft a1ef277e2c checkpatch: add tests for the attribute matcher
Add support for direct testing of the attribute matcher, add basic tests
for it.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:35 -07:00
Andy Whitcroft 1bdab9e588 checkpatch: switch indent allow plain return
It is a common and sane idiom to allow a single return on the end of a
case statement:

	switch (...) {
	case foo:	return bar;
	}

Add an exception for this.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:34 -07:00
Andy Whitcroft 14b111c158 checkpatch: conditional indent -- labels have different indent rules
Labels have different indent rules and must be ignored when checking the
conditional indent levels.  Also correct identify labels in single
statement conditionals.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:34 -07:00
Andy Whitcroft 0d413866c7 checkpatch: values: double ampersand may be unary
It is possible to use double ampersand (&&) in unary context where it
means the address of a goto label.  Handle spacing for it.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:34 -07:00
Andy Whitcroft fe2a7dbc85 checkpatch: square brackets -- exemption for array slices in braces
It is wholy reasonable to have square brackets representing array slices
in braces on the same line.  These should be spaced.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:34 -07:00
Jason Baron 346e15beb5 driver core: basic infrastructure for per-module dynamic debug messages
Base infrastructure to enable per-module debug messages.

I've introduced CONFIG_DYNAMIC_PRINTK_DEBUG, which when enabled centralizes
control of debugging statements on a per-module basis in one /proc file,
currently, <debugfs>/dynamic_printk/modules. When, CONFIG_DYNAMIC_PRINTK_DEBUG,
is not set, debugging statements can still be enabled as before, often by
defining 'DEBUG' for the proper compilation unit. Thus, this patch set has no
affect when CONFIG_DYNAMIC_PRINTK_DEBUG is not set.

The infrastructure currently ties into all pr_debug() and dev_dbg() calls. That
is, if CONFIG_DYNAMIC_PRINTK_DEBUG is set, all pr_debug() and dev_dbg() calls
can be dynamically enabled/disabled on a per-module basis.

Future plans include extending this functionality to subsystems, that define 
their own debug levels and flags.

Usage:

Dynamic debugging is controlled by the debugfs file, 
<debugfs>/dynamic_printk/modules. This file contains a list of the modules that
can be enabled. The format of the file is as follows:

	<module_name> <enabled=0/1>
		.
		.
		.

	<module_name> : Name of the module in which the debug call resides
	<enabled=0/1> : whether the messages are enabled or not

For example:

	snd_hda_intel enabled=0
	fixup enabled=1
	driver enabled=0

Enable a module:

	$echo "set enabled=1 <module_name>" > dynamic_printk/modules

Disable a module:

	$echo "set enabled=0 <module_name>" > dynamic_printk/modules

Enable all modules:

	$echo "set enabled=1 all" > dynamic_printk/modules

Disable all modules:

	$echo "set enabled=0 all" > dynamic_printk/modules

Finally, passing "dynamic_printk" at the command line enables
debugging for all modules. This mode can be turned off via the above
disable command.

[gkh: minor cleanups and tweaks to make the build work quietly]

Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:47 -07:00
Linus Torvalds e413b210c5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (55 commits)
  HID: build drivers for all quirky devices by default
  HID: add missing blacklist entry for Apple ATV ircontrol
  HID: add support for Bright ABNT2 brazilian device
  HID: Don't let Avermedia Radio FM800 be handled by usb hid drivers
  HID: fix numlock led on Dell device 0x413c/0x2105
  HID: remove warn() macro from usb hid drivers
  HID: remove info() macro from usb HID drivers
  HID: add appletv IR receiver quirk
  HID: fix a lockup regression when using force feedback on a PID device
  HID: hiddev.h: Fix example code.
  HID: hiddev.h: Fix mixed space and tabs in example code.
  HID: convert to dev_* prints
  HID: remove hid-ff
  HID: move zeroplus FF processing
  HID: move thrustmaster FF processing
  HID: move pantherlord FF processing
  HID: fix incorrent length condition in hidraw_write()
  HID: fix tty<->hid deadlock
  HID: ignore iBuddy devices
  HID: report descriptor fix for remaining MacBook JIS keyboards
  ...
2008-10-14 16:35:43 -07:00
Jiri Slaby e8c84f9a5f modpost: add support for hid
Generate aliases for hid device modules to support autoloading.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-14 23:50:47 +02:00
Linus Torvalds 2d51b75370 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-fastboot
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-fastboot:
  raid, fastboot: hide RAID autodetect option if MD is compiled as a module
  raid: make RAID autodetect default a KConfig option
  warning: fix init do_mounts_md c
  fastboot: make the RAID autostart code print a message just before waiting
  fastboot: make the raid autodetect code wait for all devices to init
  fastboot: Fix bootgraph.pl initcall name regexp
  fastboot: fix issues and improve output of bootgraph.pl
  Add a script to visualize the kernel boot process / time
2008-10-14 12:28:02 -07:00
Frederic Weisbecker 07d1890420 tracing/fastboot: fix initcalls disposition in bootgraph.pl
When bootgraph.pl parses a file, it gives one row
for each initcall's pid. But only few of them will
be displayed => the longest.

This patch corrects it by giving only a rows for pids
which have initcalls that will be displayed.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:39:34 +02:00
Arnaud Patard 5c542368a3 tracing/fastboot: fix bootgraph.pl initcall name regexp
The regexp used to match the start and the end of an initcall
are matching only on [a-zA-Z\_]. This rules out initcalls with
a number in them. This patch is fixing that.

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:39:33 +02:00
Arjan van de Ven 80a398a55d tracing/fastboot: fix issues and improve output of bootgraph.pl
David Sanders reported some issues with bootgraph.pl's display
of his sytems bootup; this commit fixes these by scaling the graph
not from 0 - end time but from the first initcall to the end time;
the minimum display size etc also now need to scale with this, as does
the axis display.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2008-10-14 10:39:32 +02:00
Frederic Weisbecker ddc7a01aad tracing/fastboot: fix initcalls disposition in bootgraph.pl
When bootgraph.pl parses a file, it gives one row
for each initcall's pid. But only few of them will
be displayed => the longest.

This patch corrects it by giving only a rows for pids
which have initcalls that will be displayed.

[ mingo@elte.hu: resolved conflicts ]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:39:24 +02:00
Arjan van de Ven aa5d9151f7 tracing/fastboot: add a script to visualize the kernel boot process / time
When optimizing the kernel boot time, it's very valuable to visualize
what is going on at which time. In addition, with the fastboot asynchronous
initcall level, it's very valuable to see which initcall gets run where
and when.

This patch adds a script to turn a dmesg into a SVG graph (that can be
shown with tools such as InkScape, Gimp or Firefox) and a small change
to the initcall code to print the PID of the thread calling the initcall
(so that the script can work out the parallelism).

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2008-10-14 10:38:46 +02:00
Steven Rostedt d53475b5aa ftrace: remove warning of old objcopy and local functions
The warning messages about old objcopy and local functions spam the
user quite drastically.  Remove the warning until we can find a nicer
way of tell the user to upgrade their objcopy.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:36:25 +02:00
Andrew Morton b3a3204174 kbuild: ftrace: don't assume that scripts/recordmcount.pl is executable
CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  CC      scripts/mod/empty.o
/bin/sh: /usr/src/25/scripts/recordmcount.pl: Permission denied

We shouldn't assume that files have their `x' bits set.  There are various
ways in which file permissions get lost, including use of patch(1).

It might not be correct to assume that perl lives in $PATH?

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:36:16 +02:00
Steven Rostedt f2f8458e75 ftrace: objcopy version test for local symbols
The --globalize-symbols option came out in objcopy version 2.17.
If the kernel is being compiled on a system with a lower version of
objcopy, then we can not use the globalize / localize trick to
link to symbols pointing to local functions.

This patch tests the version of objcopy and will only use the trick
if the version is greater than or equal to 2.17. Otherwise, if an
object has only local functions within a section, it will give a
nice warning and recommend the user to upgrade their objcopy.

Leaving the symbols unrecorded is not that big of a deal, since the
mcount record method changes the actual mcount code to be a simple
"ret" without recording registers or anything.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:36:12 +02:00
Steven Rostedt 8feff1cacc ftrace: handle weak symbol functions
During tests and checks, I've discovered that there were failures to
convert mcount callers into nops. Looking deeper into these failures,
code that was attempted to be changed was not an mcount caller.
The current code only updates if the code being changed is what it expects,
but I still investigate any time there is a failure.

What was happening is that a weak symbol was being used as a reference
for other mcount callers. That weak symbol was also referenced elsewhere
so the offsets were using the strong symbol and not the function symbol
that it was referenced from.

This patch changes the setting up of the mcount_loc section to search
for a global function that is not weak. It will pick a local over a weak
but if only a weak is found in a section, a warning is printed and the
mcount location is not recorded (just to be safe).

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:36:00 +02:00
Steven Rostedt d74fcd1e4e ftrace: update recordmount.pl arch changes
I'm trying to keep all the arch changes in recordmcount.pl in one place.
I moved your code into that area, by adding the flags to the commands
that were passed in.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:35:56 +02:00
Jeremy Fitzhardinge 6a4917e3ae ftrace: fix build problem with CONFIG_FTRACE
I'm seeing when I use separate src/build dirs:

make[3]: *** [arch/x86/kernel/time_32.o] Error 1
/bin/sh: scripts/recordmcount.pl: No such file or directory
make[3]: *** [arch/x86/kernel/irq_32.o] Error 1
/bin/sh: scripts/recordmcount.pl: No such file or directory
make[3]: *** [arch/x86/kernel/ldt.o] Error 1
/bin/sh: scripts/recordmcount.pl: No such file or directory
make[3]: *** [arch/x86/kernel/i8259.o] Error 1
/bin/sh: scripts/recordmcount.pl: No such file or directory

This fixes it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:35:53 +02:00
Ingo Molnar 3989cce82b ftrace: scripts/recordmcount.pl cross-build hack
hack around:

 ld: Relocatable linking with relocations from format elf32-i386 (init/.tmp_gl_calibrate.o) to format elf64-x86-64 (init/.tmp_mx_calibrate.o) i  CC      arch/x86/mm/extable.o
 objcopy: 'init/.tmp_mx_calibrate.o': No such file
 rm: cannot remove `init/.tmp_mx_calibrate.o': No such file or directory
 ld: Relocatable linking with relocations from format elf32-i386 (arch/x86/mm/extable.o) to format elf64-x86-64 (arch/x86/mm/.tmp_mx_extable.o) is not supported
 mv: cannot stat `arch/x86/mm/.tmp_mx_extable.o': No such file or directory
 ld: Relocatable linking with relocations from format elf32-i386 (arch/x86/mm/fault.o) to format elf64-x86-64 (arch/x86/mm/.tmp_mx_fault.o) is not supported

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:35:36 +02:00
Steven Rostedt 8da3821ba5 ftrace: create __mcount_loc section
This patch creates a section in the kernel called "__mcount_loc".
This will hold a list of pointers to the mcount relocation for
each call site of mcount.

For example:

objdump -dr init/main.o
[...]
Disassembly of section .text:

0000000000000000 <do_one_initcall>:
   0:   55                      push   %rbp
[...]
000000000000017b <init_post>:
 17b:   55                      push   %rbp
 17c:   48 89 e5                mov    %rsp,%rbp
 17f:   53                      push   %rbx
 180:   48 83 ec 08             sub    $0x8,%rsp
 184:   e8 00 00 00 00          callq  189 <init_post+0xe>
                        185: R_X86_64_PC32      mcount+0xfffffffffffffffc
[...]

We will add a section to point to each function call.

   .section __mcount_loc,"a",@progbits
[...]
   .quad .text + 0x185
[...]

The offset to of the mcount call site in init_post is an offset from
the start of the section, and not the start of the function init_post.
The mcount relocation is at the call site 0x185 from the start of the
.text section.

  .text + 0x185  == init_post + 0xa

We need a way to add this __mcount_loc section in a way that we do not
lose the relocations after final link.  The .text section here will
be attached to all other .text sections after final link and the
offsets will be meaningless.  We need to keep track of where these
.text sections are.

To do this, we use the start of the first function in the section.
do_one_initcall.  We can make a tmp.s file with this function as a reference
to the start of the .text section.

   .section __mcount_loc,"a",@progbits
[...]
   .quad do_one_initcall + 0x185
[...]

Then we can compile the tmp.s into a tmp.o

  gcc -c tmp.s -o tmp.o

And link it into back into main.o.

  ld -r main.o tmp.o -o tmp_main.o
  mv tmp_main.o main.o

But we have a problem.  What happens if the first function in a section
is not exported, and is a static function. The linker will not let
the tmp.o use it.  This case exists in main.o as well.

Disassembly of section .init.text:

0000000000000000 <set_reset_devices>:
   0:   55                      push   %rbp
   1:   48 89 e5                mov    %rsp,%rbp
   4:   e8 00 00 00 00          callq  9 <set_reset_devices+0x9>
                        5: R_X86_64_PC32        mcount+0xfffffffffffffffc

The first function in .init.text is a static function.

00000000000000a8 t __setup_set_reset_devices
000000000000105f t __setup_str_set_reset_devices
0000000000000000 t set_reset_devices

The lowercase 't' means that set_reset_devices is local and is not exported.
If we simply try to link the tmp.o with the set_reset_devices we end
up with two symbols: one local and one global.

 .section __mcount_loc,"a",@progbits
 .quad set_reset_devices + 0x10

00000000000000a8 t __setup_set_reset_devices
000000000000105f t __setup_str_set_reset_devices
0000000000000000 t set_reset_devices
                 U set_reset_devices

We still have an undefined reference to set_reset_devices, and if we try
to compile the kernel, we will end up with an undefined reference to
set_reset_devices, or even worst, it could be exported someplace else,
and then we will have a reference to the wrong location.

To handle this case, we make an intermediate step using objcopy.
We convert set_reset_devices into a global exported symbol before linking
it with tmp.o and set it back afterwards.

00000000000000a8 t __setup_set_reset_devices
000000000000105f t __setup_str_set_reset_devices
0000000000000000 T set_reset_devices

00000000000000a8 t __setup_set_reset_devices
000000000000105f t __setup_str_set_reset_devices
0000000000000000 T set_reset_devices

00000000000000a8 t __setup_set_reset_devices
000000000000105f t __setup_str_set_reset_devices
0000000000000000 t set_reset_devices

Now we have a section in main.o called __mcount_loc that we can place
somewhere in the kernel using vmlinux.ld.S and access it to convert
all these locations that call mcount into nops before starting SMP
and thus, eliminating the need to do this with kstop_machine.

Note, A well documented perl script (scripts/recordmcount.pl) is used
to do all this in one location.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14 10:34:40 +02:00
David Woodhouse e758936e02 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	include/asm-x86/statfs.h
2008-10-13 17:13:56 +01:00
David Woodhouse d945b697d0 Automatic MODULE_ALIAS() for DMI match tables.
This makes modpost handle MODULE_DEVICE_TABLE(dmi, xxxx).

I had to change the string pointers in the match table to char arrays,
and picked a size of 79 bytes almost at random -- do we need to make it
bigger than that? I was a bit concerned about the 'bloat' this
introduces into the match tables, but they should all be __initdata so
it shouldn't matter too much.

(Actually, modpost does go through the relocations and look at most of
them; it wouldn't be impossible to make it handle string pointers -- but
doesn't seem to be worth the effort, since they're __initdata).

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-10-13 16:05:06 +01:00
Arnaud Patard 8bd9890e94 fastboot: Fix bootgraph.pl initcall name regexp
The regexp used to match the start and the end of an initcall
are matching only on [a-zA-Z\_]. This rules out initcalls with
a number in them. This patch is fixing that.

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
2008-10-12 08:07:44 -07:00
Arjan van de Ven 709790a9aa fastboot: fix issues and improve output of bootgraph.pl
David Sanders reported some issues with bootgraph.pl's display
of his sytems bootup; this commit fixes these by scaling the graph
not from 0 - end time but from the first initcall to the end time;
the minimum display size etc also now need to scale with this, as does
the axis display.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2008-10-12 08:07:37 -07:00
Arjan van de Ven f9b9796ade Add a script to visualize the kernel boot process / time
When optimizing the kernel boot time, it's very valuable to visualize
what is going on at which time. In addition, with some of the initializing
going asynchronous soon, it's valuable to track/print which worker thread
is executing the initialization.

This patch adds a script to turn a dmesg into a SVG graph (that can be
shown with tools such as InkScape, Gimp or Firefox) and a small change
to the initcall code to print the PID of the thread calling the initcall
(so that the script can work out the parallelism).

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2008-10-12 08:07:20 -07:00
Ingo Molnar 8daf14cf56 Merge branches 'x86/xen', 'x86/build', 'x86/microcode', 'x86/mm-debug-v2', 'x86/memory-corruption-check', 'x86/early-printk', 'x86/xsave', 'x86/ptrace-v2', 'x86/quirks', 'x86/setup', 'x86/spinlocks' and 'x86/signal' into x86/core-v2 2008-10-12 15:50:02 +02:00
Linus Torvalds 37d9869ed9 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (27 commits)
  [S390] Fix checkstack for s390
  [S390] fix initialization of stp
  [S390] 3215: Remove tasklet.
  [S390] console flush on panic / reboot
  [S390] introduce dirty bit for kvm live migration
  [S390] Add ioctl support for EMC Symmetrix Subsystem Control I/O
  [S390] xpram: per device block request queues.
  [S390] dasd: fix message flood for unsolicited interrupts
  [S390] Move private simple udelay function to arch/s390/lib/delay.c.
  [S390] dcssblk: add >2G DCSSs support and stacked contiguous DCSSs support.
  [S390] ptrace changes
  [S390] s390: use sys_pause for 31bit pause entry point
  [S390] qdio enhanced SIGA (iqdio) support.
  [S390] cio: fix cio_tpi.
  [S390] cio: Correct use of ! and &
  [S390] cio: inline assembly cleanup
  [S390] bus_id -> dev_set_name() for css and ccw busses
  [S390] bus_id ->dev_name() conversions in qdio
  [S390] Use s390_root_dev_* in kvm_virtio.
  [S390] more bus_id -> dev_name conversions
  ...
2008-10-11 08:50:01 -07:00
Greg Kroah-Hartman a9860bf05f Staging: add TAINT_CRAP flag to drivers/staging modules
We need to add a flag for all code that is in the drivers/staging/
directory to prevent all other kernel developers from worrying about
issues here, and to notify users that the drivers might not be as good
as they are normally used to.

Based on code from Andreas Gruenbacher and Jeff Mahoney to provide a
TAINT flag for the support level of a kernel module in the Novell
enterprise kernel release.

This is the code that actually modifies the modules, adding the flag to
any files in the drivers/staging directory.

Cc: Andreas Gruenbacher <agruen@suse.de>
Cc: Jeff Mahoney <jeffm@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-10 15:31:06 -07:00
Christian Borntraeger 89d49841e9 [S390] Fix checkstack for s390
With -march=z990 and later gcc can use the long displacement facility
insruction lay for stack register handling. This patch adopts checkstack
to catch lay in addition to ahi and aghi.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-10-10 21:34:03 +02:00
James Morris 9ac684fc38 Merge branch 'next' into for-linus 2008-10-10 11:09:47 +11:00
Mathieu Desnoyers 87f3b6b6fb Marker depmod fix core kernel list
* Theodore Ts'o (tytso@mit.edu) wrote:
>
> I've been playing with adding some markers into ext4 to see if they
> could be useful in solving some problems along with Systemtap.  It
> appears, though, that as of 2.6.27-rc8, markers defined in code which is
> compiled directly into the kernel (i.e., not as modules) don't show up
> in Module.markers:
>
> kvm_trace_entryexit arch/x86/kvm/kvm-intel  %u %p %u %u %u %u %u %u
> kvm_trace_handler arch/x86/kvm/kvm-intel  %u %p %u %u %u %u %u %u
> kvm_trace_entryexit arch/x86/kvm/kvm-amd  %u %p %u %u %u %u %u %u
> kvm_trace_handler arch/x86/kvm/kvm-amd  %u %p %u %u %u %u %u %u
>
> (Note the lack of any of the kernel_sched_* markers, and the markers I
> added for ext4_* and jbd2_* are missing as wel.)
>
> Systemtap apparently depends on in-kernel trace_mark being recorded in
> Module.markers, and apparently it's been claimed that it used to be
> there.  Is this a bug in systemtap, or in how Module.markers is getting
> built?   And is there a file that contains the equivalent information
> for markers located in non-modules code?

I think the problem comes from "markers: fix duplicate modpost entry"
(commit d35cb360c2)

Especially :

  -   add_marker(mod, marker, fmt);
  +   if (!mod->skip)
  +     add_marker(mod, marker, fmt);
    }
    return;
   fail:

Here is a fix that should take care if this problem.

Thanks for the bug report!

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Tested-by: "Theodore Ts'o" <tytso@mit.edu>
CC: Greg KH <greg@kroah.com>
CC: David Smith <dsmith@redhat.com>
CC: Roland McGrath <roland@redhat.com>
CC: Sam Ravnborg <sam@ravnborg.org>
CC: Wenji Huang <wenji.huang@oracle.com>
CC: Takashi Nishiie <t-nishiie@np.css.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-06 16:34:19 -07:00
zippel@linux-m68k.org 661b0680f7 kconfig: readd lost change count
Commit f072181e64 ("kconfig: drop the
""trying to assign nonexistent symbol" warning") simply dropped the
warnings, but it does a little more than that, it also marks the current
.config as needed saving, so add this back.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-09-29 08:03:01 -07:00
zippel@linux-m68k.org 204c96f609 kconfig: fix silentoldconfig
Recent changes to oldconfig have mixed up the silentoldconfig handling,
so this fixes that by clearly separating that special mode, e.g.
KCONFIG_NOSILENTUPDATE is only relevant here, the .config is written as
needed.

This will also properly close Bug 11230.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-09-29 08:03:01 -07:00
Randy Dunlap 39f00c087d kernel-doc: allow structs whose members are all private
Struct members may be marked as private by using
	/* private: */
before them, as noted in Documentation/kernel-doc-nano-HOWTO.txt

Fix kernel-doc to handle structs whose members are all private;
otherwise invalid XML is generated:

xmlto: input does not validate (status 3)
linux-2.6.27-rc6-git4/Documentation/DocBook/debugobjects.xml:146: element variablelist: validity error : Element variablelist content does not follow the DTD, expecting ((title , titleabbrev?)? , varlistentry+), got ()
Document linux-2.6.27-rc6-git4/Documentation/DocBook/debugobjects.xml does not validate
make[1]: *** [Documentation/DocBook/debugobjects.html] Error 3

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Reported-by: Roland McGrath <roland@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-09-23 08:09:13 -07:00
H. Peter Anvin 43789e2163 kbuild: fix cc-option and cc-option-yn
David Sanders wrote:

> I'm getting this error:
> as: unrecognized option `-mtune=generic32'
> I have binutils 2.17.

Use -c instead of -S in cc-option and cc-option-yn, so we can probe
options related to the assembler.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: kbuild devel <kbuild-devel@lists.sourceforge.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-09 11:52:33 -07:00
James Morris b56c8c221d SELinux: add gitignore file for mdp script
Add gitignore file for scripts/selinux/mdp/mdp.

Signed-off-by: James Morris <jmorris@namei.org>
2008-09-05 21:43:38 +10:00
James Morris 86d688984d Merge branch 'master' into next 2008-08-28 10:47:34 +10:00
Serge E. Hallyn 93c06cbbf9 selinux: add support for installing a dummy policy (v2)
In August 2006 I posted a patch generating a minimal SELinux policy.  This
week, David P. Quigley posted an updated version of that as a patch against
the kernel.  It also had nice logic for auto-installing the policy.

Following is David's original patch intro (preserved especially
bc it has stats on the generated policies):

se interested in the changes there were only two significant
changes. The first is that the iteration through the list of classes
used NULL as a sentinel value. The problem with this is that the
class_to_string array actually has NULL entries in its table as place
holders for the user space object classes.

The second change was that it would seem at some point the initial sids
table was NULL terminated. This is no longer the case so that iteration
has to be done on array length instead of looking for NULL.

Some statistics on the policy that it generates:

The policy consists of 523 lines which contain no blank lines. Of those
523 lines 453 of them are class, permission, and initial sid
definitions. These lines are usually little to no concern to the policy
developer since they will not be adding object classes or permissions.
Of the remaining 70 lines there is one type, one role, and one user
statement. The remaining lines are broken into three portions. The first
group are TE allow rules which make up 29 of the remaining lines, the
second is assignment of labels to the initial sids which consist of 27
lines, and file system labeling statements which are the remaining 11.

In addition to the policy.conf generated there is a single file_contexts
file containing two lines which labels the entire system with base_t.

This policy generates a policy.23 binary that is 7920 bytes.

(then a few versions later...):

The new policy is 587 lines (stripped of blank lines) with 476 of those
lines being the boilerplate that I mentioned last time. The remaining
111 lines have the 3 lines for type, user, and role, 70 lines for the
allow rules (one for each object class including user space object
classes), 27 lines to assign types to the initial sids, and 11 lines for
file system labeling. The policy binary is 9194 bytes.

Changelog:

	Aug 26: Added Documentation/SELinux.txt
	Aug 26: Incorporated a set of comments by Stephen Smalley:
		1. auto-setup SELINUXTYPE=dummy
		2. don't auto-install if selinux is enabled with
			non-dummy policy
		3. don't re-compute policy version
		4. /sbin/setfiles not /usr/sbin/setfiles
	Aug 22: As per JMorris comments, made sure make distclean
		cleans up the mdp directory.
		Removed a check for file_contexts which is now
		created in the same file as the check, making it
		superfluous.

Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: David Quigley <dpquigl@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
2008-08-27 08:54:08 +10:00
Kay Sievers 5e4c6564c9 pnp: fix "add acpi:* modalias entries"
With 22454cb99f we added only the
first entry of the device table. We need to loop over the whole
device list.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-21 10:15:39 -07:00
Erkki Lintunen 0758416325 bugfix for scripts/patch-kernel in 2.6 sublevel stepping
scripts/patch-kernel script can't patch a tree, say, from 2.6.25 to
2.6.26.1, because of a wrong comparison in context of patching 2.6.x base.
 Fix it.

Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-08-06 22:11:33 +02:00
Randy Dunlap 32ab8f97dd kernel-doc: skip nested struct/union cleanly
Fix handling of nested structs or unions.  The regex to strip (eliminate)
nested structs or unions was limited to only 0 or 1 matches.  This can
cause an uneven number of left/right braces to be stripped, which causes
this:

Warning(linux-2.6.27-rc1-git2//include/net/mac80211.h:336): No description found for parameter '}'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-05 14:33:49 -07:00
Linus Torvalds d8f4b819c3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kconfig: drop the ""trying to assign nonexistent symbol" warning
  kconfig: always write out .config
2008-08-04 17:24:28 -07:00
Sam Ravnborg f072181e64 kconfig: drop the ""trying to assign nonexistent symbol" warning
They really stand out now that make *config is less chatty - and
they are generally ignored - so drop them.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Adrian Bunk <bunk@kernel.org>
2008-08-04 22:29:37 +02:00
Sam Ravnborg 22127f246d kconfig: always write out .config
Always write out .config also in the case where config
did not change.
This fixes: http://bugzilla.kernel.org/show_bug.cgi?id=11230

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Cc: Adrian Bunk <bunk@kernel.org>
2008-08-04 22:18:07 +02:00
David Woodhouse 759da92671 firmware: silence __fw_modbuild and __fw_modinst 'Nothing to be done' messages
People don't like them and think they're errors.

Leave the __fw_install one though; when 'make firmware_install' does
nothing, it's best to have a 'Nothing to be done for...' message rather
than just doing nothing.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-02 07:52:29 +01:00
Adrian Bunk 48a61569bb kbuild: scripts/ver_linux: don't set PATH
It would have saved both a bug submitter and me a few hours if
scripts/ver_linux had picked the same gcc as the build.

Since I can't see any reason why it fiddles with PATH at all this patch
therefore removes the PATH setting.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-31 23:36:54 +02:00
Andreas Gruenbacher 3b40d38120 kbuild: genksyms: Include extern information in dumps
The extern flag currently is not included in type dump files
(genksyms --dump-types). Include that flag there for completeness.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-31 23:01:31 +02:00
Andreas Gruenbacher 94aa3d716e kbuild: genksyms parser: fix the __attribute__ rule
We are having two kinds of problems with genksyms today: fake checksum
changes without actual ABI changes, and changes which we would rather like
to ignore (such as an additional field at the end of a structure that
modules are not supposed to touch, for example).

I have thought about ways to improve genksyms and compute checksums
differently to avoid those problems, but in the end I don't see a
fundamentally better way.  So here are some genksyms patches for at least
making the checksums more easily manageable, if we cannot fully fix them.

In addition to the bugfixes (the first two patches), this allows genksyms
to track checksum changes and report why a checksum changed (third patch),
and to selectively ignore changes (fourth patch).

This patch:

Gcc __attribute__ definitions may occur repeatedly, e.g.,

	static int foo __attribute__((__used__))
		       __attribute__((aligned (16)));

The genksyms parser does not understand this, and generates a syntax error.
Fix this case.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-31 23:00:25 +02:00
Adrian Bunk 11ddad3960 kbuild: scripts/genksyms/lex.l: add %option noinput
gcc 4.3 correctly determines that input() is unused and gives the
following warning:

<--  snip  -->

...
  HOSTCC  scripts/genksyms/lex.o
scripts/genksyms/lex.c:1487: warning: ‘input’ defined but not used
...

<--  snip  -->

Fix it by adding %option noinput to scripts/genksyms/lex.l and
regeneration of scripts/genksyms/lex.c_shipped.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-30 22:31:02 +02:00
Adrian Bunk be2be1d590 kconfig: scripts/kconfig/zconf.l: add %option noinput
gcc 4.3 correctly determines that input() is unused and gives the
following warning:

<--  snip  -->

...
  HOSTCC  scripts/kconfig/zconf.tab.o
scripts/kconfig/lex.zconf.c:1628: warning: ‘input’ defined but not used
...

<--  snip  -->

Fix it by adding %option noinput to scripts/kconfig/zconf.l and
regeneration of scripts/kconfig/lex.zconf.c_shipped.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-30 22:29:50 +02:00
Ben Dooks 32be1d2232 scripts/mod/modpost.c: fix spelling of module and happens
Spelling fixes in scripts/mod/modpost.c

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30 09:41:46 -07:00
Linus Torvalds 6948385cbd Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (25 commits)
  setlocalversion: do not describe if there is nothing to describe
  kconfig: fix typos: "Suport" -> "Support"
  kconfig: make defconfig is no longer chatty
  kconfig: make oldconfig is now less chatty
  kconfig: speed up all*config + randconfig
  kconfig: set all new symbols automatically
  kconfig: add diffconfig utility
  kbuild: remove Module.markers during mrproper
  kbuild: sparse needs CF not CHECKFLAGS
  kernel-doc: handle/strip __init
  vmlinux.lds: move __attribute__((__cold__)) functions back into final .text section
  init: fix URL of "The GNU Accounting Utilities"
  kbuild: add arch/$ARCH/include to search path
  kbuild: asm symlink support for arch/$ARCH/include
  kbuild: support arch/$ARCH/include for tags, cscope
  kbuild: prepare headers_* for arch/$ARCH/include
  kbuild: install all headers when arch is changed
  kbuild: make clean removes *.o.* as well
  kbuild: optimize headers_* targets
  kbuild: only one call for include/ in make headers_*
  ...
2008-07-27 09:59:59 -07:00
Sebastian Siewior 56b2f0706d setlocalversion: do not describe if there is nothing to describe
Jan Engelhardt wrote:
> Just a note that when you run git-describe, you should probably quiten it.
>
> fatal: cannot describe 'bd7364a0fd5a4a2878fe4a224be1b142a4e6698e'
>
> This happens when tags are not present, which can happen if Linus's tree
> is sent upwards again, IOW:
>
>  machine1$  git-clone torvalds/linux-2.6.git
>  machine1$  git push elsewhere master
>
>  machine2$  git-clone elsewhere:/linux
>  machine2$  git-describe HEAD
>  fatal: cannot describe that

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Acked-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-25 22:12:53 +02:00
Sam Ravnborg 09748e178b kconfig: make defconfig is no longer chatty
make defconfig generated a lot of output
then noone actually read.
Use conf_set_all_new_symbols() to generate the default
configuration and avoid the chatty output.

A typical run now looks like this:
$ make  defconfig
*** Default configuration is based on 'i386_defconfig'
arch/x86/configs/i386_defconfig:13:warning: trying to assign nonexistent symbol SEMAPHORE_SLEEPERS
arch/x86/configs/i386_defconfig:176:warning: trying to assign nonexistent symbol PREEMPT_BKL
...
arch/x86/configs/i386_defconfig:1386:warning: trying to assign nonexistent symbol INSTRUMENTATION
$

As an added benefit we now clearly see the warnings generated
in the start of the process.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
2008-07-25 22:12:51 +02:00
Sam Ravnborg cd9140e1e7 kconfig: make oldconfig is now less chatty
Previously when running "make oldconfig" we saw all the propmt lines
from kconfig and noone actully read this.

With this patch the user will only see output if there is new symbols.
This will be seen as "make oldconfig" runs which does not generate any output.

A typical run now looks like this:

$ make oldconfig
scripts/kconfig/conf -o arch/x86/Kconfig
$

If a new symbol is found then we restart the config process like this:
$ make oldconfig
scripts/kconfig/conf -o arch/x86/Kconfig
*
* Restart config...
*
*
* General setup
*
Prompt for development and/or incomplete code/drivers (EXPERIMENTAL) [Y/n/?] y
Local version - append to kernel release (LOCALVERSION) []
...

The bahaviour is similar to what we know when running the implicit
oldconfig target "make silentoldconfig".
"make silentoldconfig" are run as part of the kernel build process
if the configuration has changed.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
2008-07-25 22:12:50 +02:00
Sam Ravnborg f443d2eccf kconfig: speed up all*config + randconfig
Drop the chatty mode when we generate the all*config, randconfig
configurations.
Ths speeds up the process considerably and noone looked
at the output anyway.
This patch uses the conf_set_all_new_symbols() function
just added to kconfig.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
2008-07-25 22:12:49 +02:00
Roman Zippel dc7862e5a6 kconfig: set all new symbols automatically
Add conf_set_all_new_symbols() which set all symbols (which don't have a
value yet) to a specifed value.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-25 22:12:48 +02:00
Tim Bird a717417e7f kconfig: add diffconfig utility
Diffconfig is a simple utility for comparing two kernel configuration files.
See usage in the script for more info.

Signed-off-by: Tim Bird <tim.bird@am.sony.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-25 22:12:41 +02:00
Randy Dunlap 74fc5c653c kernel-doc: handle/strip __init
Handle __init in functions with kernel-doc notation by stripping the
__init away from the output doc.  This is already being done for
"__devinit".  This patch fixes these kernel-doc error/aborts:

Error(linux-next-20080619//drivers/usb/gadget/config.c:132): cannot understand prototype: 'struct usb_descriptor_header **__init usb_copy_descriptors(struct usb_descriptor_header **src) '
Error(linux-next-20080619//drivers/usb/gadget/config.c:182): cannot understand prototype: 'struct usb_endpoint_descriptor *__init usb_find_endpoint( 	struct usb_descriptor_header **src, 	struct usb_descriptor_header **copy, 	struct usb_endpoint_descriptor *match ) '

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-25 22:12:38 +02:00
Sam Ravnborg 2fb9b1bd9d kbuild: prepare headers_* for arch/$ARCH/include
Factor out the headers_*_all support to a seperate
shell script and add support for arch specific
header files can be located in either

    arch/$ARCH/include/asm
or
    include/asm-$ARCH/

In "make help" always display the headers_* targets.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-25 22:12:33 +02:00
Sam Ravnborg db1bec4f52 kbuild: install all headers when arch is changed
We see some header files that are selected dependent on
the actual architecture so force a reinstallation
of all header files when the arch changes.
This slows down "make headers_check_all" but then
we better reflect reality.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-25 22:12:18 +02:00
Sam Ravnborg 7712401ae9 kbuild: optimize headers_* targets
Move the core functionality of headers_install
and headers_check to two small perl scripts.
The makefile is adapted to use the perl scrip and
changed to operate on all files in a directory.
So if one file is changed then all files in the
directory is processed.

perl were chosen for the helper scripts because this
is pure text processing which perl is good at and
especially the headers_check.pl script are expected to
see changes / new checks implmented.

The speed is ~300% faster on this box.
And the output generated to the screen is now down to
two lines per directory (one for install, one for check)
so it is easier to scroll back after a kernel build.

The perl scripts has been brought to sanity by patient
feedback from: Vegard Nossum <vegard.nossum@gmail.com>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-25 22:12:16 +02:00
Sam Ravnborg 88181ec30f kbuild: only one call for include/ in make headers_*
Move it to the top-level file to decide if we install/check
the generic headers or the arch specific headers.

This revealed a long standing bug where "make headers_check_all"
relied on the files in asm/ for the current architecture.
So make headers_check_all is now broken by this commit.

In addition:

o add a simpler way to detect if an arch support
  exporting header files.

o add 'set -e;' so we error out early if
  make headers_check_all fails.

o add sparc64 and cris to arch we do not process
  in make headers_*_all because:

    sparc64 - use sparc to export headers
    cris    - is know seriously broken

Includes suggestions from: David Woodhouse
<dwmw2@infradead.org>.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: David Woodhouse <dwmw2@infradead.org>
2008-07-25 22:11:44 +02:00
Sam Ravnborg 62284a37dc kbuild: code refactoring in Makefile.headerinst
No functional changes just improved readability

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-25 22:08:40 +02:00
Sam Ravnborg 283039fb7d kbuild: drop support of ALTARCH for headers_*
ALTARCH is no longer used by any arch(*) so drop
support for this from Makefile.headerinst

Dropping ALTARCH support simplifies Makefile.headerinst

(*) sparc64 uses it but work is ongoing to drop it
and no furter usage is planned.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: David Miller <davem@davemloft.net>
2008-07-25 22:08:39 +02:00
Sam Ravnborg 4e420aa94c kbuild: always unifdef files in headers_install*
unifdef utility is fast enough to warrant that we always
run the scripts through unifdef.

This patch runs all headers listed with header-y and unifdef-y
through unifdef.
Next step is to drop unifdef-y in all Kbuild files and
that can now be done in smaller steps.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Adrian Bunk <bunk@kernel.org>
2008-07-25 22:08:38 +02:00
Linus Torvalds 762b8291be Merge git://git.infradead.org/~dwmw2/random-2.6
* git://git.infradead.org/~dwmw2/random-2.6:
  remove dummy asm/kvm.h files
  firmware: create firmware binaries during 'make modules'.
2008-07-25 12:01:37 -07:00
David Woodhouse 44463f7dd6 firmware: create firmware binaries during 'make modules'.
This means that we no longer need write access to the source tree while
doing 'make modules_install'.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 14:26:30 -04:00
Eric Sandeen abddaec56e fix checkstack.pl arch detection
uname -m was leaving a newline in $arch, and not passing the tests.

Also, printing the unknown arch on failure is probably helpful.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25 10:53:27 -07:00
Eric Sandeen 585e93ae83 find dynamic stack allocations in checkstack.pl
Currently, checkstack.pl only looks for fixed subtractions from the stack
pointer.  However, things like this:

void function(int size)
{
        char stackbuster[size << 2];
...

are certainly worth pointing out, I think.

This could perhaps be done more cleanly, and the following patch only
adds "dynamic" REs for x86 and x86_64, but it works:

0x00b0 crypto_cbc_decrypt_inplace [cbc]:                Dynamic (%rax)
0x00ad crypto_pcbc_decrypt_inplace [pcbc]:              Dynamic (%rax)
0x02f6 crypto_pcbc_encrypt_inplace [pcbc]:              Dynamic (%rax)
0x036c _crypto_xcbc_digest_setkey [xcbc]:               Dynamic (%rax)
...

(Inspired by Keith Owens' old stack-check script)

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25 10:53:26 -07:00
Andy Whitcroft 33cba06573 checkpatch: version 0.21
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:27 -07:00
Andy Whitcroft 234fff6515 checkpatch: types cannot start mid word for pointer tests
When checking spacing for pointer checks the type cannot start in the
middle of a word, ie. this is not 'int * bar':

	x = fooint * bar;

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft 292f1a9b34 checkpatch: complex macros need to ignore comments
Ensure we ignore comments in complex macro detection else we incorrectly
report this:

	#define PFM_GROUP_PERM_ANY     -1      /* any user/group */

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft 74048ed811 checkpatch: variants -- move the main unary/binary operators to use variants
Now that we have a variants system, move to using that to carry the
unary/binary designation for +, -, &, and *.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft 1f65f947a6 checkpatch: add checks for question mark and colon spacing
Add checks for the question mark colon operator spacing, and also check
the other uses of colon.  Colon means a number of things:

 - it introduces the else part of the ?: operator,
 - it terminates a goto label,
 - it terminates the case value,
 - it separates the identifier from the bit size on bit fields, and
 - it is used to introduce option types in asm().

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft d250658658 checkpatch: possible modifiers -- handle multiple modifiers and trailing
Add support for multiple modifiers such as:

	int __one __two foo;

Also handle trailing known modifiers when defecting modifiers:

	int __one foo __read_mostly;

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft 0221f55c14 checkpatch: possible types -- known modifiers cannot be types
Ensure we do not inadvertantly load known modifiers up as possible types.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft 8ea3eb9a20 checkpatch: handle return types of pointers to functions
Make sure we correctly mark the return type of the pointer to a function
declaration.

    const void *(*sb_tag)(struct sysfs_tag_info *info);

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft b8f96a31f3 checkpatch: macro complexity checks are meaningless in linker scripts
Exclude vmlinux.lds.h from the macro complexity checks.  They will never
apply sanely here.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft d2172eb5bd checkpatch: possible modifiers are not being correctly matched
Although we are finding the added modifier in the declaration below
we are not correctly matching it as a type.  Fix the declaration.

    static void __ref *vmem_alloc_pages(unsigned int order)
    {
    }

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft 7429c6903e checkpatch: improve type matcher debug
Improve type matcher debug so we can see what it does match.  As part
of this move us to to using the common debug framework.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft 389a2fe57f checkpatch: allow for type modifiers on multiple declarations
Allow for type modifiers mid declaration on multiple declarations:

	struct mxser_mstatus ms, __user *msu = argp;

Reported by Jiri Slaby.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Wolfram Sang 3c232147a7 checkpatch: correct spelling in kfree checks
Correct spelling in the kfree reports.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Greg Kroah-Hartman 4c432a8f01 checkpatch: usb_free_urb() can take NULL
usb_free_urb() can take a NULL, so let's check and warn about that.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft f5fe35dd95 checkpatch: condition/loop indent checks
Check to see if the block/statement which a condition or loop introduces
is indented correctly.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:26 -07:00
Andy Whitcroft 53210168fe checkpatch: toughen trailing if statement checks and extend them to while and for
Extend the trailing statement checks to report a trailing semi-colon ';'
as we really want it on the next line and indented so it is really really
obvious.  Also extend the tests to include while and for.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft 8d31cfcecf checkpatch: check spacing for square brackets
Check on the spacing before square brackets.  We should only allow spaces
there if this is part of a type definition or an initialialiser.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft e2a763c20b checkpatch: switch -- report trailing statements on case and default
Report trailing statements on case and default lines.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft f4c014c0de checkpatch: allow printk strings to exceed 80 characters to maintain their searchability
Allow printk strings to break the 80 character width limits, thus keeping
them complete and searchable.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft 548596d523 checkpatch: trailing statement indent: fix end of statement location
Fix end of statement location.  Where the last line of the statement is
replaced we are miss reporting the newly added replacement an incorrectly
indented trailing statement for the negative context.  We are also
incorrectly reporting negative statements generally.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft a3bb97a7ab checkpatch: macros: fix statement counting block end detection
We are incorrectly counting the lines in a block while accumulating
the trailing lines in a macro statement, leading to false positives.
Fix end of block handling and general counting for negative context lines.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft 6ef9b297f6 checkpatch: types: unary -- goto introduces unary context
When we see a goto we enter unary context.  For example:

	goto *h;

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft beae633249 checkpatch: comment detection: ignore macro continuation when detecting associated comments
When looking for an associated comment they may be suffixed by a macro
continuation.  Ignore this.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft d3ddcf471e checkpatch: possible types: __asm__ is never a type
We are false matching __asm__ as a type, and then tripping the external
function checks.  Squash.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Michael Ellerman f3db6639fe checkpatch: add a checkpatch warning for new uses of __initcall().
[apw@shadowen.org: generalise pattern and add tests]
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft c8cb2ca37e checkpatch: types: some types may also be identifiers
Some types such as typedefs may overlap real identifiers.  Be more
targetted about when a type can really exist.  Where it cannot let it be
an identifier.  This prevents false reporting of the minus '-' in unary
context in the following:

	foo[bar->bool - 1];

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft fee61c47d1 checkpatch: return is not a function -- parentheses for casts are ok too
Casts require parentheses so it is possible to have something like this:

	return (int)(*a);

This miss trips the complexity function.  Ensure that the two separate
parenthesised sections are not coelesced.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Andy Whitcroft 6cbb2e7111 checkpatch: Version: 0.20
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:25 -07:00
Adrian Bunk f606ddf42f remove the v850 port
Trying to compile the v850 port brings many compile errors, one of them exists
since at least kernel 2.6.19.

There also seems to be noone willing to bring this port back into a usable
state.

This patch therefore removes the v850 port.

If anyone ever decides to revive the v850 port the code will still be
available from older kernels, and it wouldn't be impossible for the port to
reenter the kernel if it would become actively maintained again.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:24 -07:00
Linus Torvalds 53baaaa968 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (79 commits)
  arm: bus_id -> dev_name() and dev_set_name() conversions
  sparc64: fix up bus_id changes in sparc core code
  3c59x: handle pci_name() being const
  MTD: handle pci_name() being const
  HP iLO driver
  sysdev: Convert the x86 mce tolerant sysdev attribute to generic attribute
  sysdev: Add utility functions for simple int/ulong variable sysdev attributes
  sysdev: Pass the attribute to the low level sysdev show/store function
  driver core: Suppress sysfs warnings for device_rename().
  kobject: Transmit return value of call_usermodehelper() to caller
  sysfs-rules.txt: reword API stability statement
  debugfs: Implement debugfs_remove_recursive()
  HOWTO: change email addresses of James in HOWTO
  always enable FW_LOADER unless EMBEDDED=y
  uio-howto.tmpl: use unique output names
  uio-howto.tmpl: use standard copyright/legal markings
  sysfs: don't call notify_change
  sysdev: fix debugging statements in registration code.
  kobject: should use kobject_put() in kset-example
  kobject: reorder kobject to save space on 64 bit builds
  ...
2008-07-22 13:13:47 -07:00
Mathieu Desnoyers d35cb360c2 markers: fix duplicate modpost entry
When a kernel was rebuilt, the previous Module.markers was not cleared.
It caused markers with different format strings to appear as duplicates
when a markers was changed.  This problem is present since
scripts/mod/modpost.c started to generate Module.markers, commit
b2e3e658b3

It therefore applies to 2.6.25, 2.6.26 and linux-next.

I merely merged the patches from Roland, Wenji and Takashi here.

Credits to
Roland McGrath <roland@redhat.com>
Wenji Huang <wenji.huang@oracle.com>
and
Takashi Nishiie <t-nishiie@np.css.fujitsu.com>

for providing the individual fixes.

- Changelog :
  - Integrated Takashi's Makefile modification to clear Module.markers upon
    make clean.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Roland McGrath <roland@redhat.com>
Cc: Wenji Huang <wenji.huang@oracle.com>
Cc: Takashi Nishiie <t-nishiie@np.css.fujitsu.com>
Cc: <stable@kernel.org>		[2.6.25.x, 2.6.26.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-22 09:59:41 -07:00
Kay Sievers 22454cb99f pnp: add acpi:* modalias entries
Along with the non-modalias conformant "pnp:*" aliases, we add "acpi:*"
entries to PNP drivers, to allow module autoloading by ACPI PNP device
entries, which export proper modalias information, without any specific
userspace modprobe mangling.

Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21 21:54:53 -07:00
David Woodhouse 7259d936c6 Update scripts/Makefile.fwinst to cope with older make
Also fix unwanted rebuilds of the firmware/ihex2fw tool by including
the .ihex2fw.cmd file when present.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Reported-and-tested-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-17 09:12:04 -07:00
Linus Torvalds 5a86102248 Merge branch 'for-2.6.27' of git://git.infradead.org/users/dwmw2/firmware-2.6
* 'for-2.6.27' of git://git.infradead.org/users/dwmw2/firmware-2.6: (64 commits)
  firmware: convert sb16_csp driver to use firmware loader exclusively
  dsp56k: use request_firmware
  edgeport-ti: use request_firmware()
  edgeport: use request_firmware()
  vicam: use request_firmware()
  dabusb: use request_firmware()
  cpia2: use request_firmware()
  ip2: use request_firmware()
  firmware: convert Ambassador ATM driver to request_firmware()
  whiteheat: use request_firmware()
  ti_usb_3410_5052: use request_firmware()
  emi62: use request_firmware()
  emi26: use request_firmware()
  keyspan_pda: use request_firmware()
  keyspan: use request_firmware()
  ttusb-budget: use request_firmware()
  kaweth: use request_firmware()
  smctr: use request_firmware()
  firmware: convert ymfpci driver to use firmware loader exclusively
  firmware: convert maestro3 driver to use firmware loader exclusively
  ...

Fix up trivial conflicts with BKL removal in drivers/char/dsp56k.c and
drivers/char/ip2/ip2main.c manually.
2008-07-14 16:54:07 -07:00
David Woodhouse 751851af7a Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Conflicts:

	sound/pci/Kconfig
2008-07-14 15:51:11 -07:00
Linus Torvalds e18425a0ab Merge branch 'tracing/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (228 commits)
  ftrace: build fix for ftraced_suspend
  ftrace: separate out the function enabled variable
  ftrace: add ftrace_kill_atomic
  ftrace: use current CPU for function startup
  ftrace: start wakeup tracing after setting function tracer
  ftrace: check proper config for preempt type
  ftrace: trace schedule
  ftrace: define function trace nop
  ftrace: move sched_switch enable after markers
  ftrace: prevent ftrace modifications while being kprobe'd, v2
  fix "ftrace: store mcount address in rec->ip"
  mmiotrace broken in linux-next (8-bit writes only)
  ftrace: avoid modifying kprobe'd records
  ftrace: freeze kprobe'd records
  kprobes: enable clean usage of get_kprobe
  ftrace: store mcount address in rec->ip
  ftrace: build fix with gcc 4.3
  namespacecheck: fixes
  ftrace: fix "notrace" filtering priority
  ftrace: fix printout
  ...
2008-07-14 14:49:54 -07:00
Cornelia Huck 7e9db9eaef [S390] cio: Introduce modalias for css bus.
Add modalias and subchannel type attributes for all subchannels.
I/O subchannel specific attributes are now created in
io_subchannel_probe(). modalias and subchannel type are also
added to the uevent for the css bus. Also make the css modalias
known.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2008-07-14 10:02:05 +02:00
David Woodhouse 8bd6b2229b ihex: add ihex2fw tool for converting HEX files into firmware images
Not the straight conversion to binary which objcopy can do for us, but
actually representing each record with its original {addr, length},
because some drivers need that information preserved.

Fix up 'firmware_install' to be able to build $(hostprogs-y) too.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-07-10 14:47:41 +01:00
David Woodhouse 88ecf814c4 firmware: Add firmware installation to modules_install, add firmware_install
For 'make modules_install', install any firmware required by
the modules which are being installed.

Also add a 'make firmware_install' target which doesn't depend on the
configuration, but installs _all_ available in-kernel-tree firmware into
$(INSTALL_FW_PATH), which defaults to /lib/firmware. This is intended
for distributors to make arch-independent (and config-independent)
packages containing firmware.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-10 14:47:34 +01:00
Ingo Molnar e765ee90da Merge branch 'linus' into tracing/ftrace 2008-06-16 11:15:58 +02:00
Sam Ravnborg 4d7365d664 kbuild: ignore powerpc specific symbols in modpost
Kumar Gala <galak@kernel.crashing.org> wrote:
We have a case in powerpc in which we want to link some library
routines with all module objects.  The routines are intended for
handling out-of-line function call register save/restore so having
them as EXPORT_SYMBOL() is counter productive (we do also need to
link the same "library" code into the kernel).

Without this patch a powerpc build would error out and fail
to build modules with the added register save/restore module.

There were two obvious solutions:
1) To link the .o file before the modpost stage
2) To ignore the symbols in modpost

Option 1) was ruled out because we do not have any separate
linking stage for single file modules.

This patch implements option 2 - and do so only for powerpc.

The symbols we ignore are all undefined symbols named:
_restgpr_*, _savegpr_*, _rest32gpr_*, _save32gpr_*

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
2008-06-12 16:41:48 +02:00
Andy Whitcroft c45dcabd26 update checkpatch.pl to version 0.19
This version is a bit of a whopper.  This version brings a few new checks,
improvements to a number of checks mostly through modifications to the
way types are parsed, several fixes to quote/comment handling, as well as
the usual slew of fixes for false positives.

Of note:
 - return is not a function and is now reported,
 - preprocessor directive detection is loosened to match C99 standard,
 - we now intuit new type modifiers, and
 - comment handling is much improved

Andy Whitcroft (18):
      Version: 0.19
      fix up a couple of missing newlines in reports
      colon to parenthesis spacing varies on asm
      values: #include is a preprocessor statement
      quotes: fix single character quotes at line end
      add typedef exception for the non-pointer "function types"
      kerneldoc parameters must be on one line, relax line length
      types: word boundary is not always required
      improved #define bracketing reports
      uninitialized_var is an annotation not a function name
      possible types: add possible modifier handling
      possible types: fastcall is a type modifier
      types: unsigned is not a modifier on all types
      static/external initialisation to zero should allow modifiers
      checkpatch: fix recognition of preprocessor directives -- part 2
      comments: fix inter-hunk comment tracking
      return is not a function
      do not report include/asm/foo.h use in include/linux/foo.h
      return is not a function -- tighten test

[jengelh@computergmbh.de: fix recognition of preprocessor directives]
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Cc: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06 11:29:09 -07:00
Linus Torvalds b09916e4f0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild: fix $(src) assignmnet with external modules
2008-06-02 15:26:02 -07:00
Sam Ravnborg 96d97f262a kbuild: fix $(src) assignmnet with external modules
When we introduced support for KBUILD_EXTRA_SYMBOLS
we started to include the externam module's kbuild
file when doing the final modpost step.

As external modules often do:
ccflags-y := -I$(src)

We had problems because $(src) was unassinged and
gcc then used the next parameter for -I resulting in
strange build failures.

Fix is to assign $(src) and $(obj) when building
external modules.

This fixes: http://bugzilla.kernel.org/show_bug.cgi?id=10798

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Tvrtko <tvrtko.ursulin@sophos.com>
Cc: Andrea Arcangeli <andrea@qumranet.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
2008-05-31 22:28:40 +02:00
Linus Torvalds 14d03fd98e Mark 'scripts/decodecode' executable
.. because it is.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-30 14:02:21 -07:00
Gabriel C 656a3f7978 scripts/ver_linux use 'gcc -dumpversion'
These magic greps and hacks in ver_linux to get the gcc version always break after some gcc releases.

Since now gcc >4.3 allows compiling with '--with-pkgversion' ( which can be everything 'My Cool Gcc' or something )
ver_linux will report random junk for these.

Simply use 'gcc -dumpversion' to get the gcc version which should always work.

Signed-off-by: Gabriel C <nix.or.die@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-05-25 23:02:43 +02:00
Steven Rostedt 656ee82cc8 kbuild: create new CFLAGS_REMOVE_(basename).o option
We currently have a way to add special CFLAGS to code, but we do not have a
way to remove them if needed.

With the case of ftrace, some files should simply not be profiled. Adding
the -pg flag to these files is simply a waste, and adding "notrace" to each
and every function is ugly.

Currently we put in "Makefile turd" [1] to stop the compiler from adding -pg
to certain files. This was clumsy and awkward.

This patch now adds the revese of CFLAGS_(basename).o with
CFLAGS_REMOVE_(basename).o.  This allows developers to prevent certain
CFLAGS from being used to compile files. For example, we can now do

CFLAGS_REMOVE_string.o = -pg

to remove the -pg option from the string.o file in the lib directory.

Note: a space delimited list of options may be added to the REMOVE macro.

[1] - what David Miller called the workaronud to remove -pg

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-23 22:43:33 +02:00
Christophe Jaillet 107f43a0f7 kconfig: incorrect 'len' field initialisation ?
1) The field 'len' of the 'gstr' structure seems to track the size of the memory
already allocated for the "growable string". So the value of this field should be
the same as the 'malloc()' just above, shouldn't it ?

Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-05-19 20:14:49 +02:00
Randy Dunlap 7b97887eab kernel-doc: allow unnamed bit-fields
Allow for unnamed bit-fields and skip them instead of printing an
erroneous warning message for them, such as:

Warning(include/asm-s390/cio.h:103): No description found for parameter 'u32'

which contains:

struct tm_scsw {
	u32 :1;

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-05-19 20:12:40 +02:00
Sam Ravnborg aab34ac858 kbuild: filter away debug symbols from kernel symbols
Andi Kleen <andi@firstfloor.org>
reported that he saw a lot of symbols like this:

0000000000000b24 N DW.aio.h.903a6d92.2
0000000000000bce N DW.task_io_accounting.h.8d8de327.0
0000000000000bec N DW.hrtimer.h.c23659c6.0

in his System.map / kallsyms output.

Simple solution is to skip all debugging
symbols (they are marked 'N').

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Paulo Marques <pmarques@grupopie.com>
2008-05-19 20:07:58 +02:00
Andi Kleen fd1db0a313 kbuild: disable modpost warnings for linkonce sections
Disable modpost warnings for linkonce sections

My build gives lots of warnings like

WARNING: sound/core/snd.o (.gnu.linkonce.wi.mpspec_def.h.30779716): unexpected section name.
The (.[number]+) following section name are ld generated and not expected.
Did you forget to use "ax"/"aw" in a .S file?
Note that for example <linux/init.h> contains
section definitions for use in .S files.

But for .linkonce. duplicated sections are actually ok and expected.
So just disable the warning for this case.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-05-11 10:10:51 +02:00
Sam Ravnborg c4143a8303 kconfig: fix MAC OS X warnings in menuconfig
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Timur Tabi <timur@freescale.com>
2008-05-04 21:03:20 +02:00
Jean Delvare ac55182899 modpost: i2c aliases need no trailing wildcard
Not all device types need a wildcard at the end of their module
aliases. In particular, for i2c module aliases, the trailing wildcard
is not only unneeded, it could also cause the wrong driver to be
loaded.

As I2C devices have no IDs, i2c module aliases are simple, arbitrary
device names. For example:

$ /sbin/modinfo lm90
filename:       /lib/modules/2.6.25-git18/kernel/drivers/hwmon/lm90.ko
author:         Jean Delvare <khali@linux-fr.org>
description:    LM90/ADM1032 driver
license:        GPL
vermagic:       2.6.25-git18 mod_unload
depends:        hwmon
alias:          i2c:lm90*
alias:          i2c:adm1032*
alias:          i2c:lm99*
alias:          i2c:lm86*
alias:          i2c:max6657*
alias:          i2c:adt7461*
alias:          i2c:max6680*
$

This would cause trouble if one I2C chip name matches the beginning of
another I2C chip name and both chips are supported by different
drivers. For example, an i2c device named lm9042 would cause the lm90
driver to be loaded, while it doesn't support that device. This case
has yet to be seen in practice, but still, I'd like to fix it now. The
cleanest fix is to remove the trailing wildcard from i2c module aliases.

Here's a patch doing this.

Not all device type aliases need a trailing wildcard, in particular
the i2c aliases don't. Don't add a wildcard by default in do_table(),
instead let each device type handler add it if needed.

I have tested types acpi, dmi, eisa, i2c, ide, ieee1394, input, pci,
pcmcia, platform, pnp, scsi, serio, ssb and usb. Other types (ccw, of,
vio, parisc, sdio and virtio) are untested.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-05-04 09:24:47 +02:00
Sam Ravnborg b44158de9e kconfig: made check-lxdialog more portable
OS-X shell did not like 'echo -e' so implement
suggestion from Al Viro to use a more portable construct.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Acked-By: Timur Tabi <timur@freescale.com>
2008-05-01 19:29:47 +02:00
Bryan Wu c6495aaabf kallsyms: nuke all ChangeLog, this should be logged by git
Pointed out by Paulo:
  "When I wrote this initially, it was a mistake to add a Changelog in
   the first place, but I didn't know better at the time.

   If you're going to make changes to this file, please remove all the
   Changelog, instead of adding more entries to it.  The 'Changelog'
   should be kept by the version control system, and not the source code
   itself."

Cc: Paulo Marques <pmarques@grupopie.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: Paulo Marques <pmarques@grupopie.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:31 -07:00