Pull build fixes for less mainstream architectures from Paul Gortmaker:
"These are fixes for frv(1), blackfin(2), powerpc(1) and xtensa(4).
Fortunately the touches are nearly all specific to files just used by
the arch in question. The two touches to shared/common files
[kernel/irq/debug.h and drivers/pci/Makefile] are trivial to assess as
no risk to anyone.
Half of them relate to xtensa directly. It was only when I fixed the
last xtensa issue that I realized that the arch has been broken for a
significant time, and isn't a specific v3.4 regression. So if you
wanted, we could leave xtensa lying bleeding in the street for a
couple more weeks and queue those for 3.5. But given they are no risk
to anyone outside of xtensa, I figured to just leave them in.
If you are OK with taking the xtensa fixes, then please pull to get:
- one last implicit include uncovered by system.h that is in a file
specific to just one powerpc defconfig. (I'd sync'd with BenH).
- fix an oversight in the PCI makefile where shared code wasn't being
compiled for ARCH=frv
- fix a missing include for GPIO in blackfin framebuffer.
- audit and tag endif in blackfin ezkit board file, in order to find
and fix the misplaced endif masking a block of code.
- fix irq/debug.h choice of temporary macro names to be more internal
so they don't conflict with names used by xtensa.
- fix a reference to an undeclared local var in xtensa's signal.c
- fix an implicit bug.h usage in xtensa's asm/io.h uncovered by my
removing bug.h from kernel.h
- fix xtensa to properly indicate it is using asm-generic/hardirq.h
in order to resolve the link error - undefined ack_bad_irq
The xtensa still fails final link as my latest binutils does something
evil when ld forward-relocates unlikely() blocks, but in theory people
who have older/valid toolchains could now use the thing."
* 'for-v3.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
xtensa: fix build fail on undefined ack_bad_irq
blackfin: fix ifdef fustercluck in mach-bf538/boards/ezkit.c
blackfin: fix compile error in bfin-lq035q1-fb.c
pci: frv architecture needs generic setup-bus infrastructure
irq: hide debug macros so they don't collide with others.
xtensa: fix build error in xtensa/include/asm/io.h
xtensa: fix build failure in xtensa/kernel/signal.c
powerpc: fix system.h fallout in sysdev/scom.c [chroma_defconfig]
Pull security key doc update from Jeff Layton:
"Ordinarily, I send my patches through others' trees, but David
suggested I just send this one to you directly since it's just a
Documentation/ update"
* 'docs-3.4' of git://git.samba.org/jlayton/linux:
keys: update the documentation with info about "logon" keys
In xen_restore_fl_direct(), xen_force_evtchn_callback() was being
called even if no events were pending. This resulted in (depending on
workload) about a 100 times as many xen_version hypercalls as
necessary.
Fix this by correcting the sense of the conditional jump.
This seems to give a significant performance benefit for some
workloads.
There is some subtle tricksy "..since the check here is trying to
check both pending and masked in a single cmpw, but I think this is
correct. It will call check_events now only when the combined
mask+pending word is 0x0001 (aka unmasked, pending)." (Ian)
CC: stable@kernel.org
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
We're spending huge amounts of time on lock contention during
end_io processing because we unconditionally assume we are overwriting
an existing extent in the file for each IO.
This checks to see if we are outside i_size, and if so, it uses a
less expensive readonly search of the btree to look for existing
extents.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Btrfs has an optimization where it will preallocate dentries during
readdir to fill in enough information to open the inode without an extra
lookup.
But, we're calling d_alloc, which is doing GFP_KERNEL allocations, and
that leads to deadlocks because our readdir code has tree locks held.
For now, disable this optimization. We'll fix the gfp mask in the next
merge window.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This patch ensures that the last bit of a transfer gets correctly
flushed out of the register.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This condition is used to determine 8 bits or 16 and 32 bits transfer.
Obviously it is reversed.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Since the member was dropped from the common Blackfin header, we need
to stop using it in the SPORT driver too.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
No other SPI controller has this field, and SPI clients should be setting
this up in their own drivers. So drop it from the Blackfin controller to
keep people from using it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Each transfer may have its own bits per word.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This controller is only for blackfin 5xx soc, so rename it to BFIN5XX
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
The authflavor is set in an nfs_clone_mount structure and passed to the
xdev_mount() functions where it was promptly ignored. Instead, use it
to initialize an rpc_clnt for the cloned server.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
I create a new proc_lookup_mountpoint() to use when submounting an NFS
v4 share. This function returns an rpc_clnt to use for performing an
fs_locations() call on a referral's mountpoint.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Whenever lookup sees wrongsec do a secinfo and retry the lookup to find
attributes of the file or directory, such as "is this a referral
mountpoint?". This also allows me to remove handling -NFS4ERR_WRONSEC
as part of getattr xdr decoding.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
We don't want to return -NFS4ERR_WRONGSEC to the VFS because it could
cause the kernel to oops.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
I was using the same decoder function for SECINFO and SECINFO_NO_NAME,
so it was returning an error when it tried to decode an OP_SECINFO_NO_NAME
header as OP_SECINFO.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
v2: recursion was replaced by loop
If client is a clone, then it's parent can not be in the list.
But parent's Pipefs dentries have to be created and destroyed.
Note: event skip helper for clients introduced
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
There can be a case, when on MOUNT event RPC client (after it's dentries were
created) is not longer hold by anyone except notification callback.
I.e. on release this client will be destoroyed. And it's dentries have to be
destroyed as well. Which in turn requires per-net PipeFS superblock to be set.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
1) This is sane.
2) Otherwise there will be soft lockup:
do {
rpc_get_client_for_event (clnt->cl_dentry == NULL ==> choose)
__rpc_pipefs_event (clnt->cl_program->pipe_dir_name == NULL ==> return)
} while (1)
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
These clients can't be safely dereferenced if their counter in 0.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
When attempting to cache ACLs returned from the server, if the bitmap
size + the ACL size is greater than a PAGE_SIZE but the ACL size itself
is smaller than a PAGE_SIZE, we can read past the buffer page boundary.
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reported-by: Jian Li <jiali@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Currently, if we request for frequency greater than maximum possible, spi driver
returns error.
For example, if the spi block src frequency is 333/4 MHz, i.e. 83.33.. MHz,
maximum frequency programmable would be src/2. Which would come around 41.6...
It is difficult to pass frequency in these figures. We normally try to program
in round figures, like 42 MHz and it should get programmed to <=
requested_frequency, i.e. 41.6...
For this to happen, we must not return error even if requested freq is higher
than max possible. But should program it to max possible.
Reported-by: Vinit Kamalaksha Shenoy <vinit.shenoy@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Fix out-of-space checking, addressing a warning and potential resource
leak when resizing the filesystem down while allocating blocks.
Signed-off-by: Daniel J Blueman <daniel@quora.org>
Reviewed-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
may_commit_transaction() calls
spin_lock(&space_info->lock);
spin_lock(&delayed_rsv->lock);
and update_global_block_rsv() calls
spin_lock(&block_rsv->lock);
spin_lock(&sinfo->lock);
Lockdep complains about this at run time.
Everywhere except in update_global_block_rsv(), the space_info lock is
the outer lock, therefore the locking order in update_global_block_rsv()
is changed.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
I was seeing root_list corruption on unmount during fs resize in 3.4-rc4; add
correct locking to address this.
Signed-off-by: Daniel J Blueman <daniel@quora.org>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
btrfs_map_block sets mirror_num, so that the repair code knows eventually
which device gave us the read error. For RAID10, mirror_num must be 1 or 2.
Before this fix mirror_num was incorrectly related to our stripe index.
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
btrfs_start_delalloc_inodes will just walk the list of delalloc inodes and
start writing them out, but it doesn't splice the list or anything so as
long as somebody is doing work on the box you could end up in this section
_forever_. So just remove it, it's not needed anyway since sync will start
writeback on all inodes anyway, all we need to do is wait for ordered
extents and then we can commit the transaction. In my horrible torture test
sync goes from taking 4 minutes to about 1.5 minutes. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
We were not properly advertising the MODE bits supported by this driver, fix
that.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
We do not need to use a flag to indicate if the master driver is stopping
it is sufficient to perform spi master unregistering in the platform
driver's remove function.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This patch converts the bcm63xx SPI driver to use the SPI infrastructure
pump message queue. Since we were previously sleeping in the SPI
driver's transfer() function (which is not allowed) this is now fixed as well.
To complete that conversion a certain number of changes have been made:
- the transfer len is split into multiple hardware transfers in case its
size is bigger than the hardware FIFO size
- the FIFO refill is no longer done in the interrupt context, which was a
bad idea leading to quick interrupt handler re-entrancy
Tested-by: Tanguy Bouzeloc <tanguy.bouzeloc@efixo.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Bug noticed in commit
bf118a342f
When calling GETACL, if the size of the bitmap array, the length
attribute and the acl returned by the server is greater than the
allocated buffer(args.acl_len), we can Oops with a General Protection
fault at _copy_from_pages() when we attempt to read past the pages
allocated.
This patch allocates an extra PAGE for the bitmap and checks to see that
the bitmap + attribute_length + ACLs don't exceed the buffer space
allocated to it.
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reported-by: Jian Li <jiali@redhat.com>
[Trond: Fixed a size_t vs unsigned int printk() warning]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
A new enum indicating the dma channel direction was introduced by:
commit 49920bc669
dmaengine: add new enum dma_transfer_direction
The following commit changed spi-ep93xx to use the new enum:
commit a485df4b44
spi, serial: move to dma_transfer_direction
In doing so a sparse warning was introduced:
warning: mixing different enum types
int enum dma_data_direction versus
int enum dma_transfer_direction
This is produced because the 'dir' passed in ep93xx_spi_dma_prepare
is an enum dma_data_direction and is being used to set the
dma_slave_config 'direction' which is now an enum dma_transfer_direction.
Fix this by converting spi-ep93xx to use the new enum type in all
places.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Fix kernel-doc warning in spi.h (copy/paste):
Warning(include/linux/spi/spi.h:365): No description found for parameter 'unprepare_transfer_hardware'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
calculate_effective_freq() was still not optimized and there were cases when it
returned without error and with values of cpsr and scr as zero.
Also, the variable named found is not used well.
This patch targets to optimize and correct this routine. Tested for SPEAr.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Tested-by: Vinit Kamalaksha Shenoy <vinit.shenoy@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* 'v3.4-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: SAMSUNG: add missing MMC_CAP2_BROKEN_VOLTAGE capability
ARM: EXYNOS: Fix compilation error when CONFIG_OF is not defined
ARM: EXYNOS: Fix resource on dev-dwmci.c
ARM: S3C24XX: Fix build warning for S3C2410_PM
ARM: mini2440_defconfig: Fix build error
ARM: EXYNOS: Fix incorrect initialization of GIC
ARM: EXYNOS: use 'exynos4-sdhci' as device name for sdhci controllers
A few more fixes for v3.4-rc cycle.
It includes a couple of fixes to the ordering of the methods in udc-core.c.
Without these two patches, we will have issues when either unregistering a
gadget driver (triggered with dummy_hcd only) or issuing a device-initiated
disconnect through sysfs.
There's also a fix on dummy_hcd to not call ->pullup() from udc_stop() because
udc-core.c already handles that.
A fix to MUSB as promised, to kill the compile warnings regarding deprecated
interfaces. We are essentially dropping the __deprecated flag because it
doesn't look like we will ever be able to live without it when we consider the
amount of silicon issues we find on different MUSB instantiations.
A couple of other fixes are also available, one adding the missing transceiver
events to gpio_vbus and another adding a missing unregister call to MUSB's
davinci glue layer.
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Merge tag 'fixes-for-v3.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
usb: fixes for v3.4-rc cycle
A few more fixes for v3.4-rc cycle.
It includes a couple of fixes to the ordering of the methods in udc-core.c.
Without these two patches, we will have issues when either unregistering a
gadget driver (triggered with dummy_hcd only) or issuing a device-initiated
disconnect through sysfs.
There's also a fix on dummy_hcd to not call ->pullup() from udc_stop() because
udc-core.c already handles that.
A fix to MUSB as promised, to kill the compile warnings regarding deprecated
interfaces. We are essentially dropping the __deprecated flag because it
doesn't look like we will ever be able to live without it when we consider the
amount of silicon issues we find on different MUSB instantiations.
A couple of other fixes are also available, one adding the missing transceiver
events to gpio_vbus and another adding a missing unregister call to MUSB's
davinci glue layer.
The current code puts the built-in WMAC device of the
AR933X SoCs into reset instead of starting it. This
causes a hard lock on AR933X based boards when the
wireless driver tries to access the device.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3484/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch (as1548) fixes a recently-introduced incompatibility
between the UDC core and the dummy-hcd driver. Commit
8ae8090c82 (usb: gadget: udc-core: fix
asymmetric calls in remove_driver) moved the usb_gadget_udc_stop()
call in usb_gadget_remove_driver() below the usb_gadget_disconnect()
call.
As a result, usb_gadget_disconnect() gets called at a time when the
gadget driver believes it has been unbound but dummy-hcd believes
it has not. A nasty error ensues when dummy-hcd calls the gadget
driver's disconnect method a second time.
To fix the problem, this patch moves the gadget driver's unbind
notification after the usb_gadget_disconnect() call. Now nothing
happens between the two unbind notifications, so nothing goes wrong.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
commit 6d258a4 (usb: gadget: udc-core: stop UDC on device-initiated
disconnect) introduced another case of asymmetric calls when issuing
a device-initiated disconnect. Fix it.
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
An entry for INTERNAL_VCE encoder was missing. Add it.
Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
From Daniel Vetter
- VGA load-detect fix. This bug seems to be as old as the load-detect code
(2.6.30), but needs stupid userspace (upowerd trying to detect
connectors on dpms-off outputs) to actually kill the machine. And
obviously a machine without VGA-hotplug, otherwise we don't do load
detect.
- 2 interger overflow fixes for unpriviledged ioctls from Xi Wang.
- Fix SDVO regression for low-res (pixelclock < 100MHz) digital outputs,
introduce in 2.6.36.
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: handle input/output sdvo timings separately in mode_set
drm/i915: fix integer overflow in i915_gem_do_execbuffer()
drm/i915: fix integer overflow in i915_gem_execbuffer2()
drm/i915: fixup load-detect on enabled, but not active pipe
From Inki Dae:
this patch set fixes gem allocation and mapping issue between user space and
physical memory region.
* 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-2.6-samsung:
drm/exynos: added missed vm area region mapping type.
drm/exynos: fixed exynos_drm_gem_map_pages bug.
drm/exynos: fixed duplicatd memory allocation bug.
Pins configured as input and have MFP_LPM_DRIVE_* flag set, can have a
wrong output value for some period of time (spike) during the suspend
sequence.
This can happen because the direction of the pins (GPDR) is set by
software and the output level is set by hardware (PGSR) at a later
stage.
Fix the above potential bug by setting the output levels first.
Also save the actual levels of the pins before the suspend and restore
them after the resume, but before the direction settings take place, so
the same bug as described above will not happen in the resume sequence.
Reported-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Pins that have MFP_LPM_KEEP_OUTPUT set and are configured for output
must retain the output state in low power mode.
Currently, the pin direction configuration is overrided with values
in gpdr_lpm[] array and do not obey the MFP_LPM_KEEP_OUTPUT setting.
Fix the above bug and add some documentation to clarify the
MFP_LPM_KEEP_OUTPUT setting purpose.
Reported-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
DEFINE_RES_MEM() takes the size of resource as a second argument,
not the end address. Passing end address leads to following error
in runtime during device registration:
sa1100-rtc: failed to claim resource 0
Fix it.
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Linus Torvalds
David Vrabel
Chris Mason
Scott Jiang
Bryan Schumaker
Stanislav Kinsbursky
Sachin Prabhu
Viresh Kumar
Daniel J Blueman
Stefan Behrens
Jan Schmidt
Josef Bacik
Florian Fainelli
H Hartley Sweeten
Randy Dunlap
Olof Johansson
David Daney
Greg Kroah-Hartman
Gabor Juhos
Alan Stern
Felipe Balbi
Alex Deucher
Ilija Hadzic
Dave Airlie
Igor Grinberg
Dmitry Artamonow