This reverts commit 480b02df3a, since
Rafael reports that it causes occasional kernel paging request faults in
load_module().
Dropping the module lock and re-taking it deep in the call-chain is
definitely not the right thing to do. That just turns the mutex from a
lock into a "random non-locking data structure" that doesn't actually
protect what it's supposed to protect.
Requested-and-tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Brandon Philips <brandon@ifup.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This adds:
alias: devname:<name>
to some common kernel modules, which will allow the on-demand loading
of the kernel module when the device node is accessed.
Ideally all these modules would be compiled-in, but distros seems too
much in love with their modularization that we need to cover the common
cases with this new facility. It will allow us to remove a bunch of pretty
useless init scripts and modprobes from init scripts.
The static device node aliases will be carried in the module itself. The
program depmod will extract this information to a file in the module directory:
$ cat /lib/modules/2.6.34-00650-g537b60d-dirty/modules.devname
# Device nodes to trigger on-demand module loading.
microcode cpu/microcode c10:184
fuse fuse c10:229
ppp_generic ppp c108:0
tun net/tun c10:200
dm_mod mapper/control c10:235
Udev will pick up the depmod created file on startup and create all the
static device nodes which the kernel modules specify, so that these modules
get automatically loaded when the device node is accessed:
$ /sbin/udevd --debug
...
static_dev_create_from_modules: mknod '/dev/cpu/microcode' c10:184
static_dev_create_from_modules: mknod '/dev/fuse' c10:229
static_dev_create_from_modules: mknod '/dev/ppp' c108:0
static_dev_create_from_modules: mknod '/dev/net/tun' c10:200
static_dev_create_from_modules: mknod '/dev/mapper/control' c10:235
udev_rules_apply_static_dev_perms: chmod '/dev/net/tun' 0666
udev_rules_apply_static_dev_perms: chmod '/dev/fuse' 0666
A few device nodes are switched to statically allocated numbers, to allow
the static nodes to work. This might also useful for systems which still run
a plain static /dev, which is completely unsafe to use with any dynamic minor
numbers.
Note:
The devname aliases must be limited to the *common* and *single*instance*
device nodes, like the misc devices, and never be used for conceptually limited
systems like the loop devices, which should rather get fixed properly and get a
control node for losetup to talk to, instead of creating a random number of
device nodes in advance, regardless if they are ever used.
This facility is to hide the mess distros are creating with too modualized
kernels, and just to hide that these modules are not compiled-in, and not to
paper-over broken concepts. Thanks! :)
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Alasdair G Kergon <agk@redhat.com>
Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
Cc: Ian Kent <raven@themaw.net>
Signed-Off-By: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
RDMA/nes: Fix incorrect unlock in nes_process_mac_intr()
RDMA/nes: Async event for closed QP causes crash
RDMA/nes: Have ethtool read hardware registers for rx/tx stats
RDMA/cxgb4: Only insert sq qid in lookup table
RDMA/cxgb4: Support IB_WR_READ_WITH_INV opcode
RDMA/cxgb4: Set fence flag for inv-local-stag work requests
RDMA/cxgb4: Update some HW limits
RDMA/cxgb4: Don't limit fastreg page list depth
RDMA/cxgb4: Return proper errors in fastreg mr/pbl allocation
RDMA/cxgb4: Fix overflow bug in CQ arm
RDMA/cxgb4: Optimize CQ overflow detection
RDMA/cxgb4: CQ size must be IQ size - 2
RDMA/cxgb4: Register RDMA provider based on LLD state_change events
RDMA/cxgb4: Detach from the LLD after unregistering RDMA device
IB/ipath: Remove support for QLogic PCIe QLE devices
IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters
IB/mad: Make needlessly global mad_sendq_size/mad_recvq_size static
IB/core: Allow device-specific per-port sysfs files
mlx4_core: Clean up mlx4_alloc_icm() a bit
mlx4_core: Fix possible chunk sg list overflow in mlx4_alloc_icm()
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6:
spi/xilinx: Fix compile error
spi/davinci: Fix clock prescale factor computation
spi: move bitbang txrx utility functions to private header
spi/mpc5121: Add SPI master driver for MPC5121 PSC
powerpc/mpc5121: move PSC FIFO memory init to platform code
spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller
Documentation/spi/* compile warning fix
spi/omap2_mcspi: Check params before dereference or use
spi/omap2_mcspi: add turbo mode support
spi/omap2_mcspi: change default DMA_MIN_BYTES value to 160
spi/pl022: fix stop queue procedure
spi/pl022: add support for the PL023 derivate
spi/pl022: fix up differences between ARM and ST versions
spi/spi_mpc8xxx: Do not use map_tx_dma to unmap rx_dma
spi/spi_mpc8xxx: Fix QE mode Litte Endian
spi/spi_mpc8xxx: fix potential memory corruption.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
arch/m68knommu/platform/68360/commproc.c: Checkpatch cleanup
arch/m68knommu/mm/fault.c: Checkpatch cleanup
m68knommu: improve short help of m68knommu/Kconfig/RAMSIZE for '0' case
m68knommu: remove un-used mcfsmc.h
m68knommu: add smc91x support for ColdFire NETtel boards
m68knommu: add smc91x support to ColdFire 5249 platform
m68knommu: remove size limit on non-MMU TASK_SIZE
m68knommu: fix broken use of BUAD_TABLE_SIZE in 68328serial driver
m68knommu: Coldfire QSPI platform support
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
regulator: return set_mode is same mode is requested
Regulators: ab3100/bq24022: add a missing .owner field in regulator_desc
twl6030: regulator: Remove vsel tables and use formula for calculation
mc13783-regulator: fix vaild voltage range checking for mc13783_fixed_regulator_set_voltage
regulator: use voltage number array in 88pm860x
regulator: make 88pm860x sharing one driver structure
regulator: simplify regulator_register() error handling
regulator: fix unset_regulator_supplies() to remove all matches
regulator: prevent registration of matching regulator consumer supplies
regulator: Allow regulator-regulator supplies to be specified by name
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
watchdog: Driver for the watchdog timer on Freescale IMX2 (and later) processors.
watchdog: s3c2410_wdt - Fix on handling of the request_mem_region fail
watchdog: s3c2410_wdt - Add extra option to include watchdog for Samsung SoCs
iTCO_wdt: fix TCO V1 timeout values and limits
watchdog: twl4030_wdt: Disable watchdog during probing
watchdog: update/improve/consolidate watchdog driver
watchdog: booke_wdt: fix ioctl status flags
watchdog: fix several MODULE_PARM_DESC strings
watchdog: bfin: use new common Blackfin watchdog header
Commit ce6e74f2 ("RDMA/nes: Make nesadapter->phy_lock usage
consistent") introduced a problem where phy_lock was only unlocked
within an if statement and so nes_process_mac_intr() could return with
phy_lock still held. Fix this.
This was discovered because of the sparse warning:
drivers/infiniband/hw/nes/nes_hw.c:2643:9: warning: context imbalance in 'nes_process_mac_intr' - different lock contexts for basic block
Reported-by: Roland Dreier <rdreier@cisco.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
GFS2: Fix permissions checking for setflags ioctl()
GFS2: Don't "get" xattrs for ACLs when ACLs are turned off
GFS2: Rework reclaiming unlinked dinodes
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: Ensure inode allocation buffers are fully replayed
xfs: enable background pushing of the CIL
xfs: forced unmounts need to push the CIL
xfs: Introduce delayed logging core code
xfs: Delayed logging design documentation
xfs: Improve scalability of busy extent tracking
xfs: make the log ticket ID available outside the log infrastructure
xfs: clean up log ticket overrun debug output
xfs: Clean up XFS_BLI_* flag namespace
xfs: modify buffer item reference counting
xfs: allow log ticket allocation to take allocation flags
xfs: Don't reuse the same transaction ID for duplicated transactions.
This fixes a two section mismatches and makes remove() __devexit.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Cc: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We should be releasing "res->start" here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: Wang Qiang <rurality.linux@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a problem observed while using fb_defio with a short delay on a
PowerPC platform.
It is possible that page_mkclean() is invoked in the deferred io work
function _before_ a PTE has been marked dirty. In this case, the page is
removed from the defio pagelist but page_mkclean() does not write-protect
the page again. The end result is that defio ignores all subsequent
writes to the page and the corresponding portions of the framebuffer never
get updated.
The fix consists in keeping track of the pages with non-dirty PTEs,
re-checking them again on the next deferred io work iteration. Note that
those pages are not passed to the defio callback as they are not written
by userspace yet.
Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Acked-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since the drivers probe call was changed from .init.text to .devinit.text
in commit c2e13037e6 ("platform-drivers:
move probe to .devinit.text in drivers/video") the fb_fix_screeninfo and
fb_var_screeninfo structures must be changed from .init.data to
.devinit.data, too.
Also the drivers remove routine should be moved from .text to .devexit.text
It removes these 7 section mismatch warnings from modpost:
WARNING: vmlinux.o(.devinit.text+0x1e28): Section mismatch in reference from the function sgivwfb_probe() to the variable .init.data:sgivwfb_fix
The function __devinit sgivwfb_probe() references
a variable __initdata sgivwfb_fix.
If sgivwfb_fix is only used by sgivwfb_probe then
annotate sgivwfb_fix with a matching annotation.
WARNING: vmlinux.o(.devinit.text+0x1e50): Section mismatch in reference from the function sgivwfb_probe() to the (unknown reference) .init.data:(unknown)
The function __devinit sgivwfb_probe() references
a (unknown reference) __initdata (unknown).
If (unknown) is only used by sgivwfb_probe then
annotate (unknown) with a matching annotation.
WARNING: vmlinux.o(.devinit.text+0x1e59): Section mismatch in reference from the function sgivwfb_probe() to the (unknown reference) .init.data:(unknown)
The function __devinit sgivwfb_probe() references
a (unknown reference) __initdata (unknown).
If (unknown) is only used by sgivwfb_probe then
annotate (unknown) with a matching annotation.
WARNING: vmlinux.o(.devinit.text+0x1e60): Section mismatch in reference from the function sgivwfb_probe() to the variable .init.data:sgivwfb_fix
The function __devinit sgivwfb_probe() references
a variable __initdata sgivwfb_fix.
If sgivwfb_fix is only used by sgivwfb_probe then
annotate sgivwfb_fix with a matching annotation.
WARNING: vmlinux.o(.devinit.text+0x1e6a): Section mismatch in reference from the function sgivwfb_probe() to the (unknown reference) .init.data:(unknown)
The function __devinit sgivwfb_probe() references
a (unknown reference) __initdata (unknown).
If (unknown) is only used by sgivwfb_probe then
annotate (unknown) with a matching annotation.
WARNING: vmlinux.o(.devinit.text+0x1e7f): Section mismatch in reference from the function sgivwfb_probe() to the variable .init.data:sgivwfb_var1600sw
The function __devinit sgivwfb_probe() references
a variable __initdata sgivwfb_var1600sw.
If sgivwfb_var1600sw is only used by sgivwfb_probe then
annotate sgivwfb_var1600sw with a matching annotation.
WARNING: vmlinux.o(.devinit.text+0x1e91): Section mismatch in reference from the function sgivwfb_probe() to the variable .init.data:sgivwfb_var
The function __devinit sgivwfb_probe() references
a variable __initdata sgivwfb_var.
If sgivwfb_var is only used by sgivwfb_probe then
annotate sgivwfb_var with a matching annotation.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since the drivers probe calls were changed from .init.text to
.devinit.text in commit c2e13037e6
("platform-drivers: move probe to .devinit.text in drivers/video") all the
function from .init.text should be moved to .devinit.text, too.
The drivers remove calls can also be move from .text to .devexit.text.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Cc: Vincent Sanders <support@simtec.co.uk>
Acked-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since the drivers probe call was changed from .init.text to .devinit.text
in commit c2e13037e6 ("platform-drivers:
move probe to .devinit.text in drivers/video") the fb_fix_screeninfo and
fb_var_screeninfo structures must be changed from .init.data to
.devinit.data, too.
Also the drivers remove routine should be moved from .exit.text to
.devexit.text
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FBIO_WAITFORVSYNC is currently implemented by matroxfb, atyfb, intelfb and
more. All of them keep redefining the same FBIO_WAITFORVSYNC macro over
and over again, so move it to linux/fb.h and clean up those duplicate
defines.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Cc: Ville Syrjala <syrjala@sci.fi>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Maik Broemme <mbroemme@plusserver.de>
Cc: Petr Vandrovec <vandrove@vc.cvut.cz>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: "Hiremath, Vaibhav" <hvaibhav@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This work includes the following:
- Implement handler for FBIO_WAITFORVSYNC ioctl.
- Allocate the data and palette buffers separately. A consequence of
this is that the palette and data loading is now done in different
phases. And that the LCD must be disabled temporarily after the palette
is loaded but this will only happen once after init and each time the
palette is changed. I think this is OK.
- Allocate two (ping and pong) framebuffers from memory.
- Add pan_display handler which toggles the LCDC DMA registers between
the ping and pong buffers.
Signed-off-by: Martin Ambrose <martin@ti.com>
Cc: Chaithrika U S <chaithrika@ti.com>
Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix up the section in the w100fb driver, by moving:
* w100fb_remove() from .text to .devexit.text
* w100_get_xtal_table() from .text to .devinit.text
* w100fb_init() from .devinit.text to .init.text
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: <stable@kernel.org> [if "platform-drivers: move probe to .devinit.text in drivers/video" was merged]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix up the sections in the vga16fb driver, by moving:
* the variables vga16_defined and vga16fb
from .init.data to .devinit.data
* vga16fb_setup() from .text to .init.text
* vga16fb_remove() from .text. to .devexit.text
This fixes the following warnings issued by modpost:
WARNING: drivers/video/built-in.o(.devinit.text+0x1a420): Section mismatch in re
ference from the function vga16fb_probe() to the (unknown reference) .init.data:
(unknown)
The function __devinit vga16fb_probe() references
a (unknown reference) __initdata (unknown).
If (unknown) is only used by vga16fb_probe then
annotate (unknown) with a matching annotation.
WARNING: drivers/video/built-in.o(.devinit.text+0x1a437): Section mismatch in reference from the function vga16fb_probe() to the variable .init.data:vga16fb_defined
The function __devinit vga16fb_probe() references
a variable __initdata vga16fb_defined.
If vga16fb_defined is only used by vga16fb_probe then
annotate vga16fb_defined with a matching annotation.
WARNING: drivers/video/built-in.o(.devinit.text+0x1a457): Section mismatch in reference from the function vga16fb_probe() to the variable .init.data:vga16fb_fix
The function __devinit vga16fb_probe() references
a variable __initdata vga16fb_fix.
If vga16fb_fix is only used by vga16fb_probe then
annotate vga16fb_fix with a matching annotation.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: <stable@kernel.org> [if "platform-drivers: move probe to .devinit.text in drivers/video" was merged]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix up the section in the vfb driver, by moving the variables vfb_default
and vfb_fix from .init.data to .devinit.data
This fixes the following warnings issued by modpost:
WARNING: drivers/video/vfb.o(.devinit.text+0xf8): Section mismatch in reference from the function vfb_probe() to the variable .init.data:vfb_default
The function __devinit vfb_probe() references
a variable __initdata vfb_default.
If vfb_default is only used by vfb_probe then
annotate vfb_default with a matching annotation.
WARNING: drivers/video/vfb.o(.devinit.text+0x114): Section mismatch in reference from the function vfb_probe() to the variable .init.data:vfb_fix
The function __devinit vfb_probe() references
a variable __initdata vfb_fix.
If vfb_fix is only used by vfb_probe then
annotate vfb_fix with a matching annotation.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: <stable@kernel.org> [if "platform-drivers: move probe to .devinit.text in drivers/video" was merged]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix up the sections in the hgafb driver, by
* moving hga_default_var and hga_fix from .init.data to .devinit.data
* moving hga_detect() from .init.text to .devinit.text
* moving hga_fb_remove() from .text to .devexit.text
This fixes the following warnings issued by modpost:
WARNING: drivers/video/hgafb.o(.devinit.text+0x18): Section mismatch in referenc
e from the function hgafb_probe() to the function .init.text:hga_card_detect()
The function __devinit hgafb_probe() references
a function __init hga_card_detect().
If hga_card_detect is only used by hgafb_probe then
annotate hga_card_detect with a matching annotation.
WARNING: drivers/video/hgafb.o(.devinit.text+0xfe): Section mismatch in referenc
e from the function hgafb_probe() to the variable .init.data:hga_fix
The function __devinit hgafb_probe() references
a variable __initdata hga_fix.
If hga_fix is only used by hgafb_probe then
annotate hga_fix with a matching annotation.
WARNING: drivers/video/hgafb.o(.devinit.text+0x105): Section mismatch in reference from the function hgafb_probe() to the variable .init.data:hga_default_var
The function __devinit hgafb_probe() references
a variable __initdata hga_default_var.
If hga_default_var is only used by hgafb_probe then
annotate hga_default_var with a matching annotation.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: <stable@kernel.org> [if "platform-drivers: move probe to .devinit.text in drivers/video" was merged]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix the sections in the arcfb driver, by moving:
* the variables arcfb_fix and arcfb_var from .init.data to .devinit.data
* arcfb_remove() from .text to .devexit.text
This fixes the following warnings issued by modpost:
WARNING: drivers/video/built-in.o(.devinit.text+0x543): Section mismatch in reference from the function arcfb_probe() to the variable .init.data:arcfb_var
The function __devinit arcfb_probe() references
a variable __initdata arcfb_var.
If arcfb_var is only used by arcfb_probe then
annotate arcfb_var with a matching annotation.
WARNING: drivers/video/built-in.o(.devinit.text+0x558): Section mismatch in reference from the function arcfb_probe() to the variable .init.data:arcfb_fix
The function __devinit arcfb_probe() references
a variable __initdata arcfb_fix.
If arcfb_fix is only used by arcfb_probe then
annotate arcfb_fix with a matching annotation.
Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: <stable@kernel.org> [if "platform-drivers: move probe to .devinit.text in drivers/video" was merged]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
These are different size buffers (40 chars vs 16), we may as well be
cautious.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This lets us support the new BF527-EZKIT V2.1 via platform resources
tweaks only.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Now that the WM831x core uses genirq for the IRQ controller there is no
need to use the WM831x-specific wrappers to request interrupts so convert
to use genirq directly.
Also use more meaningful strings to make /proc/interrupts more readily
legible.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The bug is an oops when dev_get_drvdata() returned null in
cmos_update_irq_enable(). The call tree looks like this:
rtc_dev_ioctl()
=> rtc_update_irq_enable()
=> cmos_update_irq_enable()
It's caused by a race condition in the module initialization. It is
rtc_device_register() which makes the ioctl operations live so I moved
the call to dev_set_drvdata() before the call to rtc_device_register().
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=15963
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Cc: Malte Schroder <maltesch@gmx.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The current ds1302 driver (or at least the one that lives in /drivers/rtc)
seems to be designed for memory mapped devices only. This make it quite
hard to add support for GPIO-based implementations (as this is the case
for the upcoming Arcom Vulcan).
This patch moves the direct register access to inline functions with
explicit names. Still not as good as a proper platform driver, but at
least neater.
Signed-off-by: Marc Zyngier <maz@misterjones.org>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Instead of individually creating and removing the sysfs device attribute
files, wrap them in an attribute_group and use
sysfs_{create/remove}_group.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On imx SoCs rtc clock parent is CKIL, but clock rate shall be determined
using rtc clock itself, that eliminates CKIL clock usage in the driver.
Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add support for the S3C64xx SoC to the generic S3C RTC driver.
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Cc: Frans Pop <elendil@planet.nl>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix build error when CONFIG_MAGIC_SYSRQ is not enabled:
drivers/xen/manage.c:223: error: implicit declaration of function 'handle_sysrq'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The MSR IA32_TEMPERATURE_TARGET contains the TjMax value in the newer
Intel processors.
Signed-off-by: Huaxu Wan <huaxu.wan@linux.intel.com>
Signed-off-by: Carsten Emde <C.Emde@osadl.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Yong Wang <yong.y.wang@linux.intel.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The thermal sensors of Intel(R) CPUs can be detected by CPUID instruction,
indicated by CPUID.06H.EAX[0].
Signed-off-by: Huaxu Wan <huaxu.wan@linux.intel.com>
Signed-off-by: Carsten Emde <C.Emde@osadl.org>
Reviewed-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Yong Wang <yong.y.wang@linux.intel.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Paul Thomas <pthomas8589@gmail.com>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Content for the 8bit device threaded interrupt handlers. Depending on the
interrupt line and chip configuration, either click or wakeup / freefall
handler is called. In case of click, BTN_ event is sent via input device.
In case of wakeup or freefall, input device ABS_ events are updated
immediatelly.
It is still possible to configure interrupt line 1 for fast freefall
detection and use the second line either for click or threshold based
interrupts. Or both lines can be used for click / threshold interrupts.
Polled input device can be set to stopped state and still get coordinate
updates via input device using interrupt based method. Polled mode and
interrupt mode can also be used parallel.
BTN_ events are remapped based on existing axis remapping information.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Original lis3 driver didn't provide interrupt handler(s) for click or
threshold event handling. This patch adds threaded handlers for one or
two interrupt lines for 8 bit device. Actual content for interrupt
handling is provided in the separate patch.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Tested-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 bit device has two wakeup / free fall units. It was not possible to
configure the second unit. This patch introduces configuration entry to
the platform data and also corresponding changes to the 8 bit setup
function.
High pass filters were enabled by default. Patch introduces configuration
option for high pass filter cut off frequency and also possibility to
disable or enable the filter via platform data. Since the control is a
new one and default state was filter enabled, new option is used to
disable the filter. This way old platform data is still compatible with
the change.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Tested-by: Daniel Mack <daniel@caiaq.de>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Separate configuration function for 8 bit version of the chip. This way
generic part of the init function stays little bit more readable.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Tested-by: Daniel Mack <daniel@caiaq.de>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Definitions for click were missing.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Tested-by: Daniel Mack <daniel@caiaq.de>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since crc32.c contains a nifty test program that can be executed in user
space, make sure endian detection works reliably in user space too.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Precompute more crc32 values(0xcc00, 0xcc0000 and 0xcc000000) into tables.
This increases the table size from 1KB to 4KB but the performance benfit
makes it worth it:
28% faster on MPC8321, 266 MHz
2x faster on Core 2 Duo, 3.1GHz
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The C99 specification states in section 6.11.5:
The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
I've seen various new Kconfigs with rather unhelpful one liner
descriptions. Add a Kconfig warning for a minimum length of the Kconfig
help section.
Right now I arbitarily chose 4. The exact value can be debated.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
