Commit Graph

349748 Commits

Author SHA1 Message Date
Seth Jennings 0d145a5017 staging: zsmalloc: remove unused pool name
zs_create_pool() currently takes a name argument which is
never used in any useful way.

This patch removes it.

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-30 18:22:41 +01:00
Geert Uytterhoeven 5ccac0fd59 staging: comedi: ISA DMA drivers should depend on ISA_DMA_API
m68k allmodconfig:

  CC [M]  drivers/staging/comedi/drivers/pcl812.o
drivers/staging/comedi/drivers/pcl812.c: In function ‘pcl812_ai_cmd’:
drivers/staging/comedi/drivers/pcl812.c:736: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/pcl812.c:736: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl812.c:736: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/pcl812.c:736: error: for each function it appears in.)
drivers/staging/comedi/drivers/pcl812.c:737: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/pcl812.c:738: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/pcl812.c:739: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/pcl812.c:740: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/pcl812.c:741: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/pcl812.c:742: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/pcl812.c: In function ‘interrupt_pcl812_ai_dma’:
drivers/staging/comedi/drivers/pcl812.c:883: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/pcl812.c:884: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl812.c: In function ‘pcl812_ai_poll’:
drivers/staging/comedi/drivers/pcl812.c:947: error: implicit declaration of function ‘get_dma_residue’
make[2]: *** [drivers/staging/comedi/drivers/pcl812.o] Error 1
  CC [M]  drivers/staging/comedi/drivers/pcl816.o
drivers/staging/comedi/drivers/pcl816.c: In function ‘interrupt_pcl816_ai_mode13_dma’:
drivers/staging/comedi/drivers/pcl816.c:359: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/pcl816.c:366: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/pcl816.c:366: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl816.c:366: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/pcl816.c:366: error: for each function it appears in.)
drivers/staging/comedi/drivers/pcl816.c:367: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/pcl816.c:369: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/pcl816.c:372: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/pcl816.c:378: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/pcl816.c:379: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/pcl816.c: In function ‘pcl816_ai_cmd’:
drivers/staging/comedi/drivers/pcl816.c:629: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl816.c:631: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/pcl816.c: In function ‘pcl816_ai_poll’:
drivers/staging/comedi/drivers/pcl816.c:679: error: implicit declaration of function ‘get_dma_residue’
make[2]: *** [drivers/staging/comedi/drivers/pcl816.o] Error 1
  CC [M]  drivers/staging/comedi/drivers/pcl818.o
drivers/staging/comedi/drivers/pcl818.c: In function ‘interrupt_pcl818_ai_mode13_dma’:
drivers/staging/comedi/drivers/pcl818.c:547: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/pcl818.c:550: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/pcl818.c:550: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl818.c:550: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/pcl818.c:550: error: for each function it appears in.)
drivers/staging/comedi/drivers/pcl818.c:551: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/pcl818.c:552: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/pcl818.c:555: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/pcl818.c:561: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/pcl818.c:562: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/pcl818.c: In function ‘pcl818_ai_mode13dma_int’:
drivers/staging/comedi/drivers/pcl818.c:886: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/pcl818.c:888: error: implicit declaration of function ‘clear_dma_ff’
make[2]: *** [drivers/staging/comedi/drivers/pcl818.o] Error 1
  CC [M]  drivers/staging/comedi/drivers/das16.o
drivers/staging/comedi/drivers/das16.c: In function ‘das16_cmd_exec’:
drivers/staging/comedi/drivers/das16.c:644: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/das16.c:645: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/das16.c:648: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/das16.c:650: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/das16.c:654: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/das16.c:655: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/das16.c:656: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/das16.c: In function ‘disable_dma_on_even’:
drivers/staging/comedi/drivers/das16.c:845: error: implicit declaration of function ‘get_dma_residue’
drivers/staging/comedi/drivers/das16.c: In function ‘das16_attach’:
drivers/staging/comedi/drivers/das16.c:1197: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/das16.c:1197: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/das16.c:1197: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/das16.c:1197: error: for each function it appears in.)
make[2]: *** [drivers/staging/comedi/drivers/das16.o] Error 1
  CC [M]  drivers/staging/comedi/drivers/das1800.o
drivers/staging/comedi/drivers/das1800.c: In function ‘das1800_flush_dma_channel’:
drivers/staging/comedi/drivers/das1800.c:555: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/das1800.c:559: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/das1800.c:562: error: implicit declaration of function ‘get_dma_residue’
drivers/staging/comedi/drivers/das1800.c: In function ‘das1800_flush_dma’:
drivers/staging/comedi/drivers/das1800.c:586: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/das1800.c:603: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/das1800.c: In function ‘das1800_handle_dma’:
drivers/staging/comedi/drivers/das1800.c:622: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/das1800.c:624: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/das1800.c:625: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/das1800.c: In function ‘das1800_init_dma’:
drivers/staging/comedi/drivers/das1800.c:1424: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/das1800.c:1424: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/das1800.c:1424: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/das1800.c:1424: error: for each function it appears in.)
make[2]: *** [drivers/staging/comedi/drivers/das1800.o] Error 1
  CC [M]  drivers/staging/comedi/drivers/dt282x.o
drivers/staging/comedi/drivers/dt282x.c: In function ‘dt282x_ao_dma_interrupt’:
drivers/staging/comedi/drivers/dt282x.c:328: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/dt282x.c: In function ‘prep_ai_dma’:
drivers/staging/comedi/drivers/dt282x.c:416: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/dt282x.c:416: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/dt282x.c:416: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/dt282x.c:416: error: for each function it appears in.)
drivers/staging/comedi/drivers/dt282x.c:417: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/dt282x.c:418: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/dt282x.c:419: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/dt282x.c:420: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/dt282x.c:421: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/dt282x.c:423: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/dt282x.c: In function ‘prep_ao_dma’:
drivers/staging/comedi/drivers/dt282x.c:439: error: ‘DMA_MODE_WRITE’ undeclared (first use in this function)
drivers/staging/comedi/drivers/dt282x.c: In function ‘dt282x_interrupt’:
drivers/staging/comedi/drivers/dt282x.c:471: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/dt282x.c: In function ‘dt282x_ai_cmd’:
drivers/staging/comedi/drivers/dt282x.c:690: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/dt282x.c: In function ‘dt282x_ao_cmd’:
drivers/staging/comedi/drivers/dt282x.c:938: error: ‘DMA_MODE_WRITE’ undeclared (first use in this function)
make[2]: *** [drivers/staging/comedi/drivers/dt282x.o] Error 1
  CC [M]  drivers/staging/comedi/drivers/ni_at_a2150.o
drivers/staging/comedi/drivers/ni_at_a2150.c: In function ‘a2150_interrupt’:
drivers/staging/comedi/drivers/ni_at_a2150.c:237: error: implicit declaration of function ‘claim_dma_lock’
drivers/staging/comedi/drivers/ni_at_a2150.c:238: error: implicit declaration of function ‘disable_dma’
drivers/staging/comedi/drivers/ni_at_a2150.c:241: error: implicit declaration of function ‘clear_dma_ff’
drivers/staging/comedi/drivers/ni_at_a2150.c:249: error: implicit declaration of function ‘get_dma_residue’
drivers/staging/comedi/drivers/ni_at_a2150.c:286: error: implicit declaration of function ‘set_dma_addr’
drivers/staging/comedi/drivers/ni_at_a2150.c:287: error: implicit declaration of function ‘set_dma_count’
drivers/staging/comedi/drivers/ni_at_a2150.c:288: error: implicit declaration of function ‘enable_dma’
drivers/staging/comedi/drivers/ni_at_a2150.c:290: error: implicit declaration of function ‘release_dma_lock’
drivers/staging/comedi/drivers/ni_at_a2150.c: In function ‘a2150_attach’:
drivers/staging/comedi/drivers/ni_at_a2150.c:794: error: implicit declaration of function ‘set_dma_mode’
drivers/staging/comedi/drivers/ni_at_a2150.c:794: error: ‘DMA_MODE_READ’ undeclared (first use in this function)
drivers/staging/comedi/drivers/ni_at_a2150.c:794: error: (Each undeclared identifier is reported only once
drivers/staging/comedi/drivers/ni_at_a2150.c:794: error: for each function it appears in.)
make[2]: *** [drivers/staging/comedi/drivers/ni_at_a2150.o] Error 1

Make PCL816, PCL818, DAS16, DAS1800, DT282X, and NI_AT_A2150 depend on
ISA_DMA_API to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-30 18:16:54 +01:00
Ian Abbott 682b911938 staging: comedi: cleanup all board minors on module exit
The comedi core module optionally allocates some legacy board minor
devices on module load and cleans these up on module exit.  These are
used for manual configuration of comedi boards (for those low-level
comedi drivers that support manual configuration - mainly for ISA
boards).  Other board minor devices are created and destroyed
dynamically in response to bus device probe and remove requests.  The
ioctl used for manual configuration (attachment) and removal
(detachment) of devices is COMEDI_DEVCONFIG, but that works for any
board minor device, including those that were originally created
dynamically.

If the COMEDI_DEVCONFIG ioctl is used to manually detach an
automatically created and attached device, commit
7d3135af39 ("staging: comedi: prevent
auto-unconfig of manually configured devices") ensures that the board
minor will no longer be automatically detached and destroyed by a bus
device remove request.  From that point on the board minor behaves more
like one of the comedi "legacy" board minors.  (There would be some
justification for destroying the board minor instead, but I'd rather
leave that decision until removal of board minors has been
made safer than it currently is.)  Although the board minor behaves more
like a legacy board minor, it is not currently cleaned up on module
exit.  In fact, the module exit code will bug out because this board
minor has not been cleaned up.

Change comedi_cleanup_legacy_minors() (called from the module exit code,
and from the module init code on error) to clean up all board minors.
Rename the function to comedi_cleanup_board_minors() to reflect the
change in functionality.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-30 11:47:47 +01:00
Ian Abbott 754ab5c0e5 staging: comedi: disallow COMEDI_DEVCONFIG on non-board minors
Comedi has two sorts of minor devices:
(a) normal board minor devices in the range 0 to
COMEDI_NUM_BOARD_MINORS-1 inclusive; and
(b) special subdevice minor devices in the range COMEDI_NUM_BOARD_MINORS
upwards that are used to open the same underlying comedi device as the
normal board minor devices, but with non-default read and write
subdevices for asynchronous commands.

The special subdevice minor devices get created when a board supporting
asynchronous commands is attached to a normal board minor device, and
destroyed when the board is detached from the normal board minor device.
One way to attach or detach a board is by using the COMEDI_DEVCONFIG
ioctl.  This should only be used on normal board minors as the special
subdevice minors are too ephemeral.  In particular, the change
introduced in commit 7d3135af39 ("staging:
comedi: prevent auto-unconfig of manually configured devices") breaks
horribly for special subdevice minor devices.

Since there's no legitimate use for the COMEDI_DEVCONFIG ioctl on a
special subdevice minor device node, disallow it and return -ENOTTY.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-30 11:47:47 +01:00
Peter Hurley 612588a886 staging/fwserial: Fix endian issue in unit directory
Reported-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:31:34 -05:00
Peter Hurley ef34dd184d staging/fwserial: add diagnostic for buffer overflow
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:28:45 -05:00
Peter Hurley 2257d1224f staging/fwserial: Remove reference to removed constant
FWSERIAL_TTY_START_MINOR was removed. The minor_start is allocated
by tty_alloc_driver().

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:28:45 -05:00
Peter Hurley 84472c3b58 staging/fwserial: Don't use deprecated alloc_tty_driver()
Use tty_alloc_driver() instead.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:28:45 -05:00
Peter Hurley 4df5bb0464 staging/fwserial: Factor unstable stats/debug/status info to debugfs
Add the following file hierarchy to debugfs:

  <debugfs>-+
            +- firewire_serial -+- <unit> -+- peers
                                |          +- stats
                                |
                                +- <unit> -+- peers
                                           +- stats

The 'peers' file (read-only) contains status and configuration
info for attached peers for the given fwserial unit.

The 'stats' file (read-only) contains statistics and data profiling
information for each tty port for the given fwserial unit.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:28:45 -05:00
Peter Hurley e16d1ded85 staging/fwserial: Cleanup /proc/tty/driver/ file
Factor out extra stats, data profiles, debugging info and peer info
from procfs file in preparation for using debugfs instead.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:28:45 -05:00
Peter Hurley fa1da242c3 staging/fwserial: Create loop device the 'tty' way
Register a second tty driver to create loopback devices for
each firewire node. Note that the loopback devices are numbered
from 0; the tty->index is transformed when used to index the
port table.

Remove the hack that previously enabled this.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:28:45 -05:00
Peter Hurley a3d9ad474e staging/fwserial: Fix sparse build warnings
Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:28:45 -05:00
Peter Hurley c88d40b25f staging/fwserial: Release port regardless of unplug response code
After sending the unplug response, release the port even if an
error occurred.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:28:45 -05:00
Peter Hurley de321a14da staging/fwserial: Only reset port status for attached peers
When a port has been reserved in an attempt to connect to a peer
but that attempt does not succeed, releasing the port should not
reset the port line status. Although resetting is functionally
harmless, it can appear as if a remote peer dropped carrier to a
port it was not attached to (which can be confusing).

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:28:44 -05:00
Peter Hurley 2b86216ba1 staging/fwserial: Drop suggestion for helper fn integration
The firewire core does not require or want the suggested helper fns;
drop suggestion from TODO file.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:26:16 -05:00
Peter Hurley 9883a7396b staging/fwserial: Assume firmware is OHCI-complaint
Devices which are OHCI v1.0/ v1.1/ v1.2-draft compliant or
RFC 2734 compliant are required by specification to support
max_rec of 8 (512 bytes) or more. Accept reported value.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:26:16 -05:00
Peter Hurley 3b1f315415 staging/fwserial: Fold constant MAX_ASYNC_PAYLOAD
Since peer->max_payload is now limited to 1394-2008 spec maximum
of 4096, the port->max_payload limit can now be simplified.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:26:16 -05:00
Peter Hurley d83561894d staging/fwserial: Simplify max payload calculation
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:26:16 -05:00
Peter Hurley 5d110d9296 staging/fwserial: Refer to fw_device as "node"
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:26:16 -05:00
Peter Hurley 06b8f14dc2 staging/fwserial: Remove bandwidth limit logic
Self-limiting asynchronous bandwidth (via reducing the payload)
is not necessary and does not work, because
 1) asynchronous traffic will absorb all available bandwidth (less that
    being used for isochronous traffic)
 2) isochronous arbitration always wins.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:26:16 -05:00
Rupesh Gujare b360cb9726 staging:ozwpan: Fix following warning.
The patch ae926051d7eb: "staging: ozwpan: Added USB HCD
implementation" from Feb 20, 2012, leads to the following warning:
drivers/staging/ozwpan/ozhcd.c:1094 oz_hcd_heartbeat()
	 warn: what is this condition about? 'ep->buffered_units * 50'

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:25:10 -05:00
Marc Dietrich 93eff83ff1 staging: nvec: cleanup the string mess
Replace the various command strings by named constants.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:25:10 -05:00
Marc Dietrich 85a90528b2 staging: nvec: fix mouse suspend/resume calls
The EC command for enable/disable is not an EC command. Instead it needs
to be send to the mouse.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:25:09 -05:00
Marc Dietrich 518945fbfb staging: nvec: move toggle global event reporting to its own function
Cleanup toggle of global event reporting by moving it to its own function.
This simplifies the following cleanup.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:25:09 -05:00
Minchan Kim 9915518887 staging: zsmalloc: Fix TLB coherency and build problem
Recently, Matt Sealey reported he fail to build zsmalloc caused by
using of local_flush_tlb_kernel_range which are architecture dependent
function so !CONFIG_SMP in ARM couldn't implement it so it ends up
build error following as.

  MODPOST 216 modules
  LZMA    arch/arm/boot/compressed/piggy.lzma
  AS      arch/arm/boot/compressed/lib1funcs.o
ERROR: "v7wbi_flush_kern_tlb_range"
[drivers/staging/zsmalloc/zsmalloc.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
make: *** Waiting for unfinished jobs....

The reason we used that function is copy method by [1]
was really slow in ARM but at that time.

More severe problem is ARM can prefetch speculatively on other CPUs
so under us, other TLBs can have an entry only if we do flush local
CPU. Russell King pointed that. Thanks!
We don't have many choices except using flush_tlb_kernel_range.

My experiment in ARMv7 processor 4 core didn't make any difference with
zsmapbench[2] between local_flush_tlb_kernel_range and flush_tlb_kernel_range
but still page-table based is much better than copy-based.

* bigger is better.

1. local_flush_tlb_kernel_range: 3918795 mappings
2. flush_tlb_kernel_range : 3989538 mappings
3. copy-based: 635158 mappings

This patch replace local_flush_tlb_kernel_range with
flush_tlb_kernel_range which are avaialbe in all architectures
because we already have used it in vmalloc allocator which are
generic one so build problem should go away and performane loss
shoud be void.

[1] f553646, zsmalloc: add page table mapping method
[2] https://github.com/spartacus06/zsmapbench

Cc: stable@vger.kernel.org
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Reported-by: Matt Sealey <matt@genesi-usa.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:22:16 -05:00
Peter Huewe e620096471 staging/omapdrm: Use kmemdup rather than duplicating its implementation
Found with coccicheck.
The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:22:16 -05:00
Ryo Munakata 05014d73d6 Staging: zcache: remove unnecessary braces in zcache-main.c
This fixes a checkpatch.pl issue of
'braces {} are not necessary for single statement blocks'

Signed-off-by: Ryo Munakata <ryomnktml@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:22:16 -05:00
Peter Huewe 2643c47fa4 staging/csr: Use kmemdup rather than duplicating its implementation
Found with coccicheck.
The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:22:16 -05:00
Seth Jennings d662b8eba9 staging: zsmalloc: make CLASS_DELTA relative to PAGE_SIZE
Right now ZS_SIZE_CLASS_DELTA is hardcoded to be 16.  This
creates 254 classes for systems with 4k pages. However, on
PPC64 with 64k pages, it creates 4095 classes which is far
too many.

This patch makes ZS_SIZE_CLASS_DELTA relative to PAGE_SIZE
so that regardless of the page size, there will be the same
number of classes.

Acked-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:16:42 -05:00
Peter Huewe e21545449b staging/comedi/adl_pci8164: Don't assign string
Assigning a string is really bad,
and since we only have 1 char strings here we
can simply use a char to store the value and change the format specifier.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:11:41 -05:00
Ian Abbott bc3954b814 staging: comedi: simplify comedi_set_hw_dev()
Since `get_device()` and `put_device()` can take a NULL device
parameter, `comedi_set_hw_dev()` can be simplified to always call
`get_device()` for the new, possibly NULL hardware device, and
`put_device()` for the old, possibly NULL hardware device.  As long as
we do it in that order, there shouldn't be any problem with
`kref_release()` getting called unexpectedly when the new hardware
device is the old hardware device.

Simplify `comedi_set_hw_dev()` and update the comment because the
function is used for additional purposes since the old comment was
written.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:11:41 -05:00
Ian Abbott 104640606b staging: comedi: don't override read/write subdevice if not supported
For comedi devices that support asynchronous commands on some of their
subdevices, the comedi core creates extra device files for each of those
subdevices of the form "/dev/comedi%i_subd%i".  These use the same
comedi device as the corresponding "/dev/comedi%i" but override the
default "read" and "write" subdevice for the device.  Currently it
overrides both the read and write subdevice, but it only makes sense to
override the "read" subdevice if the subdevice supports "read" commands,
and to override the "write" subdevice if the subdevice supports "write"
commands.

In `comedi_alloc_subdevice_minor()`, only set `info->read_subdevice`
non-NULL if the subdevice has the `SDF_CMD_READ` flag set, and only set
`info->write_subdevice` non-NULL if the subdevice has the
`SDF_CMD_WRITE` flag set.  (`comedi_read_subdevice(info)` will use the
device's default read subdevice if `info->read_subdevice` is NULL.
`comedi_write_subdevice(info)` will use the device's default write
subdevice if `info->write_subdevice` is NULL.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:11:41 -05:00
H Hartley Sweeten 12e9a5f1df staging: comedi: ni_labpc_cs: remove '#undef LABPC_DEBUG'
The LABPC_DEBUG define is not used in any of the code. Just
remove the #undef.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:25 -05:00
H Hartley Sweeten 40faa60bd4 staging: comedi: ni_labpc_cs: cleanup the boardinfo declaration
For aesthetic reasons, reformat the boardinfo declaration and
add some whitespace. Remove all the information that is set to
'0' as this is the default.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:25 -05:00
H Hartley Sweeten 6e4733c34f staging: comedi: ni_labpc_cs: remove thisboard macro
The 'thisboard' macro relies on a local variable having a specific
name and yields a pointer derived from that local variable.

Replace the macro with a local variable and use the comedi_board()
helper to get the pointer.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:25 -05:00
H Hartley Sweeten 6749ffa840 staging: comedi: ni_labpc_cs: move comedi_driver declaration
Move the comedi_driver declaration down in the file. This removes
the need for the forward declaration.

For aesthetic reasons, add some whitespace to the declaration and
remove the unnecessary '&' before the function names. They are
already addresses.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:25 -05:00
H Hartley Sweeten b2e1be03ac staging: comedi: ni_labpc_cs: remove pcmcia_device private data
The private data, struct local_info_t, is not being used in the
driver. Remove it as well as the kzalloc/kfree.

Also, don't set the 'pcmcia_cur_dev' variable unless the pcmcia
configuration is successful.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:25 -05:00
H Hartley Sweeten fdcb5fdee2 staging: comedi: ni_labpc_cs: cleanup labpc_cs_attach()
Absorb the code from labpc_config() into this function and properly
return the error if the configuration fails.

Also, remove the dev_dbg() function trace message.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:25 -05:00
H Hartley Sweeten 00cefaa562 staging: comedi: ni_labpc_cs: move pcmcia_driver functions
For aesthetic reasons, move all the pcmcia_driver functions so they
are near the pcmcia_driver declaration. This also removes the need
for some of the forward declarations.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:25 -05:00
H Hartley Sweeten 4fc76ea03f staging: comedi: ni_labpc_cs: remove pcmcia_driver suspend/resume
The pcmcia_driver suspend and resume functions in this driver
don't do anything. Since they are optional just remove them.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:24 -05:00
H Hartley Sweeten deead9d973 staging: comedi: ni_labpc_cs: remove 'stop' from private pcmcia data
The pcmcia_driver suspend and remove functions set the 'stop' variable
and the resume function clears it. Nothing in the comedi_driver code
uses the 'stop' variable.

Just remove it so we can get rid of the suspend/resume.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:24 -05:00
H Hartley Sweeten 88dd3eb4d8 staging: comedi: ni_labpc_cs: remove labpc_release()
The function simply calls pcmcia_disable_device(). Remove it and
just call pcmcia_disable_device() where needed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:24 -05:00
H Hartley Sweeten 098303caaf staging: comedi: ni_labpc_cs: cleanup pcmcia_driver
For aesthetic reasons, reorder the pcmcia_driver variables and
add some whitespace.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:24 -05:00
H Hartley Sweeten 3e6c183306 staging: comedi: ni_labpc_cs: move MODULE_* info to end of file
For aesthetic reasons, move all the MODULE_* information to the end
of the file.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:09:24 -05:00
H Hartley Sweeten 885d8bce7f staging: comedi: ni_mio_cs: cleanup the boardinfo declaration
For aesthetic reasons, reformat the boardinfo declaration and
add some whitespace. Remove all the information that is set to
'0' as this is the default.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:08:23 -05:00
H Hartley Sweeten 678a6ff3e9 staging: comedi: ni_mio_cs: cleanup mio_cs_attach()
Remove the DPRINTK() function trace message as well as the #if 0'ed
out debug code that dumps the board "fingerprint".

Remove the need for the local variable that holds the link->irq
passed to request_irq(). Also, return the error code from that
function instead of assuming -EINVAL. Use the dev->board_name for
the resource string passed to request_irq() instead of the open
coded string "ni_mio_cs".

For aesthetic reasons, add some whitespace to the initializatio
of the devpriv values.

Just return the result of ni_E_init() instead of checking it for
an error, returning the error, or returning "0".

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:08:23 -05:00
H Hartley Sweeten 616b7a479e staging: comedi: ni_mio_cs: remove last forward declaration
Move the ni_getboardtype() function to remove the last forward
declaration in this file.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:08:23 -05:00
H Hartley Sweeten abbe0796ba staging: comedi: ni_mio_cs: move mio_cs_detach()
For aesthetic reasons, move this function down so it's by the
comedi_driver declaration.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:08:23 -05:00
H Hartley Sweeten aaefe848e0 staging: comedi: ni_mio_cs: move comedi_driver declaration
Move the comedi_driver declaration down in the file. This gets
rid of the need for a couple forward declarations.

For aesthetic reasons, add some whitespace to the declaration.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:08:23 -05:00
H Hartley Sweeten e5e7ff89e6 staging: comedi: ni_mio_cs: cleanup cs_attach()
Absorb the code from mio_cs_config() into this function and
properly return the error if the configuration fails.

Remove the DPRINTK() function trace message.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29 23:08:23 -05:00