* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] pxa: corgi backlight driver should not select ssp drivers
[ARM] 5321/1: Kirkwood: fix typo in Makefile
[ARM] 5320/1: fix assembly constraints in implementation of do_div()
[ARM] 5318/1: Swap the PRRR and NMRR values in proc-v7.S
[ARM] 5316/1: AT91: oops (regression) fix on gpio irq
[ARM] msm: vreg interface to msm7k pmic
[ARM] msm: dma: various basic dma improvements and bugfixes
[ARM] msm: clock: provide clk_*() api support for
[ARM] msm: clean up iomap and devices
[ARM] msm: add proc_comm support, necessary for clock and power control
[ARM] msm: rename ARCH_MSM7X00A to ARCH_MSM
[ARM] pxa/spitz: fix unbalance parenthesis in header file spitz.h
[ARM] pxa: update {corgi,spitz}_defconfig to favor SPI-based drivers
[ARM] pxa: fix the corgi_ssp.c dependency issue in {corgi,spitz}_defconfig
Revert "[ARM] pxa/corgi: remove now unused corgi_ssp.c and corgi_lcd.c"
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
backlight: Add driver for Tabletkiosk Sahara TouchIT-213 Tablet PC
backlight: da903x: Add backlight driver for DA9030/DA9034
tosa: add support for bl/lcd driver
backlight: add support for Sharp SL-6000 LCD and backlight drivers
libata currently has a pretty dumb ATA_MAX_QUEUE loop for finding
a free tag to use. Instead of fixing that up, convert libata to
using block layer tagging - gets rid of code in libata, and is also
much faster.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We're getting a lot of storage drivers blamed for interrupt misrouting
issues. This patch provides a standard way of reporting the problem
... and, if possible, correcting it.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This patch refines messages in pciehp module. The main changes are as
follows:
- remove the trailing "."
- remove __func__ as much as possible
- capitalize the first letter of messages
- show PCI device address including its domain
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
The original ARI support code has a compatibility problem with non-ARI
devices. If a device doesn't support ARI, turning on ARI forwarding on
its upper level bridge will cause undefined behavior.
This fix turns on ARI forwarding only when the subordinate devices
support it.
Tested-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
The following patch fixes the regression in 2.6.27 that causes kernel
NULL pointer dereference at cpqphp driver probe time. This patch should
be backported to the .27 stable series.
Seems to have been introduced by
f46753c5e3.
The root cause of this problem seems that cpqphp driver calls
pci_hp_register() wrongly. In current implementation, cpqphp driver
passes 'ctrl->pci_dev->subordinate' as a second parameter for
pci_hp_register(). But because hotplug slots and it's hotplug controller
(exists as a pci funcion) are on the same bus, it should be
'ctrl->pci_dev->bus' instead.
Cc: <stable@kernel.org>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
The "TEAC CD-ROM CD-224E" cannot close its tray, so add it to the NO_AUTOCLOSE
list. This will correct the "Can close tray" field of /proc/sys/dev/cdrom/info.
Signed-off-by: Márton Németh <nm127@freemail.hu>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
[bart: minor fixups to patch description]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This is the driver for the Toshiba TX4938 SoC EBUS controller ATA mode.
It has custom set_pio_mode and some hacks for big endian.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: ralf@linux-mips.org
Cc: sshtylyov@ru.mvista.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This is the driver for the Toshiba TX4939 SoC ATA controller.
This controller has standard ATA taskfile registers and DMA
command/status registers, but the register layout is swapped on big
endian. There are some other endian issue and some special registers
which requires many custom dma_ops/tp_ops routines and build_dmatable.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: ralf@linux-mips.org
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
based on suggestion from Sergei Shtylyov, there are two more places
where using pci_ioremap_bar() makes sense.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Use the newly introduced pci_ioremap_bar() function in drivers/ide.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Convert the driver to use ide_host_add() -- this seems to be a straightforward
change which I'm not sure why hasn't been done yet...
While doing this at last, get rid of:
- useless local copy of the 'sgiioc4_port_info' variable;
- unnecessary 'goto' and label...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: jeremy@sgi.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Resolves build errors with eseries and magician defconfigs (which
make use of the corgi backlight driver.)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (21 commits)
[SCSI] sd: fix computation of the full size of the device
[SCSI] lib: string_get_size(): don't hang on zero; no decimals on exact
[SCSI] sun3x_esp: Convert && to ||
[SCSI] sd: remove command-size switching code
[SCSI] 3w-9xxx: remove unnecessary local_irq_save/restore for scsi sg copy API
[SCSI] 3w-xxxx: remove unnecessary local_irq_save/restore for scsi sg copy API
[SCSI] fix netlink kernel-doc
[SCSI] sd: Fix handling of NO_SENSE check condition
[SCSI] export busy state via q->lld_busy_fn()
[SCSI] refactor sdev/starget/shost busy checking
[SCSI] mptfusion: Increase scsi-timeouts, similariy to the LSI 4.x driver.
[SCSI] aic7xxx: Take the LED out of diagnostic mode on PM resume
[SCSI] aic79xx: user visible misuse wrong SI units (not disk size!)
[SCSI] ipr: use memory_read_from_buffer()
[SCSI] aic79xx: fix shadowed variables
[SCSI] aic79xx: fix shadowed variables, add statics
[SCSI] aic7xxx: update *_shipped files
[SCSI] aic7xxx: update .reg files
[SCSI] aic7xxx: introduce "dont_generate_debug_code" keyword in aicasm parser
[SCSI] scsi_dh: Initialize path state to be passive when path is not owned
...
clean up of xencomm.c. is_phys_contiguous() is arch dependent
function that depends on how virtual memory are laid out.
So split out the function into arch specific code.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: "Luck, Tony" <tony.luck@intel.com>
It isn't necessary, and it makes the code needlessly non-portable.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This was another merge problem that wasn't a data conflict, but due to
independent changes in two branches that just didn't work together.
The pcc-acpi staging driver used
acpi_driver_data(device) = hotkey;
to set driver data, but the ACPI merge made that invalid in commit
db89b4f0db ("ACPI: catch calls of
acpi_driver_data on pointer of wrong type"), and now you're supposed to
just do.
device->driver_data = hotkey;
instead.
Fix it up.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'v28-range-hrtimers-for-linus-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits)
hrtimers: add missing docbook comments to struct hrtimer
hrtimers: simplify hrtimer_peek_ahead_timers()
hrtimers: fix docbook comments
DECLARE_PER_CPU needs linux/percpu.h
hrtimers: fix typo
rangetimers: fix the bug reported by Ingo for real
rangetimer: fix BUG_ON reported by Ingo
rangetimer: fix x86 build failure for the !HRTIMERS case
select: fix alpha OSF wrapper
select: fix alpha OSF wrapper
hrtimer: peek at the timer queue just before going idle
hrtimer: make the futex() system call use the per process slack value
hrtimer: make the nanosleep() syscall use the per process slack
hrtimer: fix signed/unsigned bug in slack estimator
hrtimer: show the timer ranges in /proc/timer_list
hrtimer: incorporate feedback from Peter Zijlstra
hrtimer: add a hrtimer_start_range() function
hrtimer: another build fix
hrtimer: fix build bug found by Ingo
hrtimer: make select() and poll() use the hrtimer range feature
...
* git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev: (66 commits)
[PATCH] kill the rest of struct file propagation in block ioctls
[PATCH] get rid of struct file use in blkdev_ioctl() BLKBSZSET
[PATCH] get rid of blkdev_locked_ioctl()
[PATCH] get rid of blkdev_driver_ioctl()
[PATCH] sanitize blkdev_get() and friends
[PATCH] remember mode of reiserfs journal
[PATCH] propagate mode through swsusp_close()
[PATCH] propagate mode through open_bdev_excl/close_bdev_excl
[PATCH] pass fmode_t to blkdev_put()
[PATCH] kill the unused bsize on the send side of /dev/loop
[PATCH] trim file propagation in block/compat_ioctl.c
[PATCH] end of methods switch: remove the old ones
[PATCH] switch sr
[PATCH] switch sd
[PATCH] switch ide-scsi
[PATCH] switch tape_block
[PATCH] switch dcssblk
[PATCH] switch dasd
[PATCH] switch mtd_blkdevs
[PATCH] switch mmc
...
* 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits)
x86: canonicalize remaining header guards
x86: drop double underscores from header guards
x86: Fix ASM_X86__ header guards
x86, um: get rid of uml-config.h
x86, um: get rid of arch/um/Kconfig.arch
x86, um: get rid of arch/um/os symlink
x86, um: get rid of excessive includes of uml-config.h
x86, um: get rid of header symlinks
x86, um: merge Kconfig.i386 and Kconfig.x86_64
x86, um: get rid of sysdep symlink
x86, um: trim the junk from uml ptrace-*.h
x86, um: take vm-flags.h to sysdep
x86, um: get rid of uml asm/arch
x86, um: get rid of uml highmem.h
x86, um: get rid of uml unistd.h
x86, um: get rid of system.h -> system.h include
x86, um: uml atomic.h is not needed anymore
x86, um: untangle uml ldt.h
x86, um: get rid of more uml asm/arch uses
x86, um: remove dead header (uml module-generic.h; never used these days)
...
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (123 commits)
dock: make dock driver not a module
ACPI: fix ia64 build warning
ACPI: hack around sysfs warning with link order
ACPI suspend: fix build warning when CONFIG_ACPI_SLEEP=n
intel_menlo: fix build warning
panasonic-laptop: fix build
ACPICA: Update version to 20080926
ACPICA: Add support for zero-length buffer-to-string conversions
ACPICA: New: Validation for predefined ACPI methods/objects
ACPICA: Fix for implicit return compatibility
ACPICA: Fixed a couple memory leaks associated with "implicit return"
ACPICA: Optimize buffer allocation procedure
ACPICA: Fix possible memory leak, error exit path
ACPICA: Fix fault after mem allocation failure in AML parser
ACPICA: Remove unused ACPI register bit definition
ACPICA: Update version to 20080829
ACPICA: Fix possible memory leak in acpi_ns_get_external_pathname
ACPICA: Cleanup for internal Reference Object
ACPICA: Update comments - no functional changes
ACPICA: Update for Reference ACPI_OPERAND_OBJECT
...
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits)
sh: asm/gpio.h needs linux/kernel.h for might_sleep()/WARN_ON().
sh: mach-highlander: Handle SCIF pinmuxing on R7785RP.
sh: sh7785 pinmux support
sh: update defconfigs.
sh: Kill off unused p1fc divisors from SH7763 clk fwk.
sh: improve pinmux support for single direction pins
sh: use 10MHz VIO_CLK for ov772x on Migo-R
sh: Update gpio_set_value() pin value handling
sh: update ov772x byte order on Migo-R
rtc: Add R2025S/D comment to rs5c372 Kconfig entry.
sh: Export cache flush routines needed by sh_eth on SH7619.
sh: Wire up oops reporting in the die notifier chain.
sh: ap325rxa: Kill off unused port definitions.
sh: Hook up PB0->PB7 input-only pins in SH7203 PFC.
sh: ap325rxa: Move off of hardcoded pinmux for flctl initialization.
sh: add support FLCTL for ap325rxa board
sh: gpio: Stub in dummy GPIO<->IRQ mapping routines.
sh: rsk7203: leds-gpio support for RSK+ LEDs.
sh: gpio: Include asm-generic/gpio.h for non-gpiolib stubs.
sh: fix soc-camera compile breakage on Migo-R.
...
* 'drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: Avoid oops in DRM_IOCTL_RM_DRAW if a bad handle is supplied.
drm: Add 32-bit compatibility for DRM_IOCTL_UPDATE_DRAW.
drm/i915: use pipes, not planes to label vblank data
drm/i915: hold dev->struct_mutex and DRM lock during vblank ring operations
i915: Fix format string warnings on x86-64.
i915: Don't dereference HWS in /proc debug files when it isn't initialized.
i915: Enable IMR passthrough of vblank events before enabling it in pipestat.
drm: Remove two leaks of vblank reference count in error paths.
drm: fix leak of cliprects in drm_rmdraw()
i915: Disable MSI on GM965 (errata says it doesn't work)
drm: Set cliprects to NULL when changing drawable to having 0 cliprects.
i915: Protect vblank IRQ reg access with spinlock
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
i2c: Add info->archdata field
i2c: Inform about deprecated chips directory
i2c: Use pci_ioremap_bar()
Schedule removal of the legacy i2c device driver binding model
i2c: Clean up <linux/i2c.h>
i2c: Update and clean up writing-clients document
i2c: Drop 2-byte address block transfer defines
i2c: Delete legacy model documentation
i2c: Constify i2c_get_clientdata's parameter
i2c: Delete outdated client porting guide
i2c: Make clear what the class field of i2c_adapter is good for
i2c-algo-pcf: Fix typo in debugging log message
i2c-algo-pcf: Add adapter hooks around xfer begin and end
i2c-algo-pcf: Pass adapter data into ->waitforpin() method
i2c-i801: Add support for Intel Ibex Peak
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: don't rebind drivers after failed resume or reset
USB: fix memory leak in cdc-acm
USB: Unusual dev for Mio moov 330 gps
USB: cdc-wdm: make module autoload work
USB: Fix unneeded endpoint check in pxa27x_udc
usb/gadget: fix kernel-doc warning
USB: Speedtouch: add pre_reset and post_reset routines
USB: usbtest.c: length, sglen and vary are unsigned, so cannot be negative
USB: support Huawei data card product IDs
USB: add ZTE MF626 USB GSM modem entry
USB: storage: Avoid I/O errors when issuing SCSI ioctls to JMicron USB/ATA bridge
USB: Fix debugfs_create_file's error checking method for usb/gadget/s3c2410_udc
USB: ohci: add support for tmio-ohci cell
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile: (21 commits)
OProfile: Fix buffer synchronization for IBS
oprofile: hotplug cpu fix
oprofile: fixing whitespaces in arch/x86/oprofile/*
oprofile: fixing whitespaces in arch/x86/oprofile/*
oprofile: fixing whitespaces in drivers/oprofile/*
x86/oprofile: add the logic for enabling additional IBS bits
x86/oprofile: reordering functions in nmi_int.c
x86/oprofile: removing unused function parameter in add_ibs_begin()
oprofile: more whitespace fixes
oprofile: whitespace fixes
OProfile: Rename IBS sysfs dir into "ibs_op"
OProfile: Rework string handling in setup_ibs_files()
OProfile: Rework oprofile_add_ibs_sample() function
oprofile: discover counters for op ppro too
oprofile: Implement Intel architectural perfmon support
oprofile: Don't report Nehalem as core_2
oprofile: drop const in num counters field
Revert "Oprofile Multiplexing Patch"
x86, oprofile: BUG: using smp_processor_id() in preemptible code
x86/oprofile: fix on_each_cpu build error
...
Manually fixed trivial conflicts in
drivers/oprofile/{cpu_buffer.c,event_buffer.h}
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (36 commits)
V4L/DVB (9336): cx88: always de-alloc frontends on fault condition
V4L/DVB (9335): videobuf: split unregister bus creating self-contained frontend de-allocator
V4L/DVB (9334): cx88: dvb_remove debug output
V4L/DVB (9333): cx88: Not all boards that requires cx88-mpeg has frontends
V4L/DVB (9332): cx88: initial fix for analogue only compilation
V4L/DVB (9331): Remove unused inode parameter from video_ioctl2
V4L/DVB (9330): Get rid of inode parameter at v4l_compat_translate_ioctl()
V4L/DVB (9328): ivtvfb: FB_BLANK_POWERDOWN turns off video output
V4L/DVB (9327): v4l: use video_device.num instead of minor in video%d
V4L/DVB (9326): ivtv: avoid green flashing when loading ivtv
V4L/DVB (9325): ivtv: switch to unlocked_ioctl.
V4L/DVB (9324): v4l2: add video_ioctl2_unlocked for unlocked_ioctl support.
V4L/DVB (9323): v4l2-int-if: Add enum_framesizes and enum_frameintervals ioctls.
V4L/DVB (9322): v4l2-int-if: Export more interfaces to modules
V4L/DVB (9321): v4l2-int-if: Define new power state changes
V4L/DVB (9320): v4l2: Add 10-bit RAW Bayer formats
V4L/DVB (9319): v4l2-int-if: Add cropcap, g_crop and s_crop commands.
V4L/DVB (9318): v4l2-int-if: Add command to get slave private data.
V4L/DVB (9316): s5h1411: Power down s5h1411 when not in use
V4L/DVB (9315): s5h1411: Skip reconfiguring demod modulation if already at the desired modulation
...
* git://git.infradead.org/iommu-2.6:
Admit to maintaining VT-d, for my sins.
dmar: fix uninitialised 'ret' variable in dmar_parse_dev()
intel-iommu: use coherent_dma_mask in alloc_coherent
amd_iommu: fix nasty bug that caused ILLEGAL_DEVICE_TABLE_ENTRY errors
intel-iommu: IA64 support
dmar: remove the quirk which disables dma-remapping when intr-remapping enabled
dmar: Use queued invalidation interface for IOTLB and context invalidation
dmar: context cache and IOTLB invalidation using queued invalidation
dmar: use spin_lock_irqsave() in qi_submit_sync()
When computing the full size of the device, we need to cast
sdkp->capacity before shifting, since in some configurations sector_t
can be a 32-bit number.
Also, change ffz(~x) to the more idiomatic ilog2(x).
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
The pattern !E && !E->fld is nonsensical. The patch below updates this
according to the assumption that && should be ||. But perhaps another
solution was intended.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@disable and_comm@
expression E;
identifier fld;
@@
- !E && !E->fld
+ !E || !E->fld
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-By: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This patch (as1138) removes from sd.c some old code for switching from
10-byte commands to 6-byte commands. This code is redundant -- the
switching for READ and WRITE is already handled in
scsi_io_completion() and the switching for MODE SENSE is already
handled in scsi_mode_sense(). (There is no comparable switch for MODE
SELECT, but I doubt one is needed.)
Furthermore the other handlers do a better job; they check for
appropriate ASC and ASCQ values before blindly switching the size.
The code in sd.c is known to cause problems with some devices by
switching when it shouldn't.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Since the commit 50bed2e286 (sg: disable
interrupts inside sg_copy_buffer), no need to disable interrupts
before calling scsi_sg_copy_from_buffer. So we can simplify
twa_scsiop_execute_scsi_complete() a bit, which disables interrupts
just for scsi_sg_copy_from_buffer.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Adam Radford <linuxraid@amcc.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Since the commit 50bed2e286 (sg: disable
interrupts inside sg_copy_buffer), no need to disable interrupts
before calling scsi_sg_copy_from_buffer. So we can simplify
tw_transfer_internal, which disables interrupts just for
scsi_sg_copy_from_buffer.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>\
Acked-by: Adam Radford <linuxraid@amcc.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Fix kernel-doc warning: the function short description must be on one
line and the previous comment is not kernel-doc but it was confusing
scripts/kernel-doc.
Warning(lin2627-g3-kdocfixes//drivers/scsi/scsi_netlink.c:221): No description found for parameter 'skb'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
The current handling of NO_SENSE check condition is the same as
RECOVERED_ERROR, and assumes that in both cases, the I/O was fully
transferred.
We have seen cases of arrays returning with NO_SENSE (no error), but
the I/O was not completely transferred, thus residual set. Thus,
rather than return good_bytes as the entire transfer, set good_bytes
to 0, so that the midlayer then applies the residual in calculating
the transfer, and for sd, will fail the I/O and fall into a retry
path.
Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This patch implements q->lld_busy_fn() for scsi mid layer to export
its busy state for request stacking drivers.
For efficiency, no lock is taken to check the busy state of
shost/starget/sdev, since the returned value is not guaranteed and
may be changed after request stacking drivers call the function,
regardless of taking lock or not.
When scsi can't dispatch I/Os anymore and needs to kill I/Os
(e.g. !sdev), scsi needs to return 'not busy'.
Otherwise, request stacking drivers may hold requests forever.
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This patch refactors the busy checking codes of scsi_device,
Scsi_Host and scsi_target. There should be no functional change.
This is a preparation for another patch which exports scsi's busy
state to the block layer for request stacking drivers.
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Make SPI timeout 10s the same as SAS
Signed-off-by: Bernd Schubert <bs@q-leap.de>
Acked-by: "Prakash, Sathya" <Sathya.Prakash@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Take the Diag/Activity-LED of the HBA out of diagnostic mode on PM
resume after successful PM resume from standby and HBA restart, it
remained always on before. If something fails before complete
recovery, it should remain on, since it is a diagnostics LED, reason
for the used higher layer for the clear.
Signed-off-by: thomas.schorpp@gmail.com
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
MHZ not Mhz for SI unit pedants
Closes bug #6422
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
OK to just reuse the outer declaration as it is never used again.
drivers/scsi/aic7xxx/aic79xx_pci.c:340:12: warning: symbol 'devconfig' shadows an earlier one
drivers/scsi/aic7xxx/aic79xx_pci.c:299:12: originally declared here
targpcistat is always assigned just before use, remove the inner declaration.
drivers/scsi/aic7xxx/aic79xx_pci.c:486:9: warning: symbol 'targpcistat' shadows an earlier one
drivers/scsi/aic7xxx/aic79xx_pci.c:429:9: originally declared here
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Redeclared within different if/else blocks, safe to reuse the
original from beginning of function.
drivers/scsi/aic7xxx/aic79xx_core.c:2475:10: warning: symbol 'scbid' shadows an earlier one
drivers/scsi/aic7xxx/aic79xx_core.c:2399:10: originally declared here
drivers/scsi/aic7xxx/aic79xx_core.c:2586:10: warning: symbol 'scbid' shadows an earlier one
drivers/scsi/aic7xxx/aic79xx_core.c:2399:10: originally declared here
drivers/scsi/aic7xxx/aic79xx_core.c:2587:15: warning: symbol 'scb' shadows an earlier one
drivers/scsi/aic7xxx/aic79xx_core.c:2393:13: originally declared here
Use caminfo for the outer declaration, the redeclared version is
iterating over all initiator/target pairs (devices) which.
drivers/scsi/aic7xxx/aic79xx_core.c:8857:23: warning: symbol 'devinfo' shadows an earlier one
drivers/scsi/aic7xxx/aic79xx_core.c:8711:21: originally declared here
Forward declaration was already marked static, make the definition match.
drivers/scsi/aic7xxx/aic79xx_core.c:3693:1: warning: symbol 'ahd_devlimited_syncrate' was not declared. Should it be static?
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Update .reg files, marking unused registers with dont_generate_debug_code.
Comment explains how to use it.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Set the path state to be passive when we learn that the controller does
not own the path to the LUN.
This will avoid sending even a single i/o thru the passive path at the
probe time.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
On Tue, 12 Aug 2008 15:08:14 +0200
Giuliano Pochini <pochini@shiny.it> wrote:
> Fujitsu magneto-optical drive, Adaptec 29160 and
> Linux Jay 2.6.26 #7 SMP Sun Aug 10 18:34:22 CEST 2008 ppc 7455, altivec supported PowerMac3,6 GNU/Linux
>
> When I insert a disk and I mount it, scsi_test_unit_ready() is called and
> the do-while loop gets sshdr->sense_key == UNIT_ATTENTION in the first
> cycle and 0 in the second one. So the if below misses the UNIT_ATTENTION
> and sdev->changed = 1 is not executed. At this point bad things can
> happen... I'm not sure how to fix this. Any clue ?
The problem is essentially caused by us eating UNIT_ATTENTION
conditions in scsi_test_unit_ready(). Fix by updating the ->changed
flag when this happens if the media is removable.
[pochini@shiny.it: updates to tidy up patch]
Signed-off-by: Giuliano Pochini <pochini@shiny.it>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
These have the Mainpine PCI identifier on however
Additional paranoia check for Tornado versions added by Alan Cox
(and this time I remembered to do an stg refresh so that the corrections ended
up in these patches not randomly attached to another diff -- Alan)
Signed-off-by: Lee Howard <lee.howard@mainpine.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add support for the OxSemi 'Tornado' devices.
Reformatted and reworked a bit by Alan Cox
Signed-off-by: Lee Howard <lee.howard@mainpine.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pass the brown paper bags please. I changed the semantics of this so the
function was supposed to do the extra kref itself then forgot to do the
change.. duh....
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This seems to have popped up after the recent merges:
drivers/watchdog/w83697ug_wdt.c: In function ‘w83697ug_select_wd_register’:
drivers/watchdog/w83697ug_wdt.c:105: warning: ‘return’ with a value, in function returning void
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
xtensa: Add config files for Diamond 232L - Rev B processor variant
xtensa: Fix io regions
xtensa: Add support for the Sonic Ethernet device for the XT2000 board.
xtensa: replace remaining __FUNCTION__ occurrences
xtensa: use newer __SPIN_LOCK_UNLOCKED macro
XTENSA: warn about including <asm/rwsem.h> directly.
* git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (53 commits)
powerpc: Support for relocatable kdump kernel
powerpc: Don't use a 16G page if beyond mem= limits
powerpc: Add del_node() for early boot code to prune inapplicable devices.
powerpc: Further compile fixup for STRICT_MM_TYPECHECKS
powerpc: Remove empty #else from signal_64.c
powerpc: Move memory size print into common show_cpuinfo for 32-bit
hvc_console: Remove __devexit annotation of hvc_remove()
hvc_console: Add support for tty window resizing
hvc_console: Fix loop if put_char() returns 0
hvc_console: Add tty driver flag TTY_DRIVER_RESET_TERMIOS
hvc_console: Add a hangup notifier for backends
powerpc/83xx: Add DS1339 RTC support for MPC8349E-mITX boards .dts
powerpc/83xx: Add support for MCU microcontroller in .dts files
powerpc/85xx: Move mpc8572ds.dts to address-cells/size-cells = <2>
of/spi: Support specifying chip select as active high via device tree
powerpc: Remove device_type = "board_control" properties in .dts files
i2c-cpm: Suppress autoprobing for devices
powerpc/85xx: Fix mpc8536ds dma interrupt numbers
powerpc/85xx: Enable enhanced functions for 8536 TSEC
powerpc: Delete unused prom_strtoul and prom_memparse
...
* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb: (47 commits)
uwb: wrong sizeof argument in mac address compare
uwb: don't use printk_ratelimit() so often
uwb: use kcalloc where appropriate
uwb: use time_after() when purging stale beacons
uwb: add credits for the original developers of the UWB/WUSB/WLP subsystems
uwb: add entries in the MAINTAINERS file
uwb: depend on EXPERIMENTAL
wusb: wusb-cbaf (CBA driver) sysfs ABI simplification
uwb: document UWB and WUSB sysfs files
uwb: add symlinks in sysfs between radio controllers and PALs
uwb: dont tranmit identification IEs
uwb: i1480/GUWA100U: fix firmware download issues
uwb: i1480: remove MAC/PHY information checking function
uwb: add Intel i1480 HWA to the UWB RC quirk table
uwb: disable command/event filtering for D-Link DUB-1210
uwb: initialize the debug sub-system
uwb: Fix handling IEs with empty IE data in uwb_est_get_size()
wusb: fix bmRequestType for Abort RPipe request
wusb: fix error path for wusb_set_dev_addr()
wusb: add HWA host controller driver
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/ehca: Reject dynamic memory add/remove when ehca adapter is present
IB/ehca: Fix reported max number of QPs and CQs in systems with >1 adapter
IPoIB: Set netdev offload features properly for child (VLAN) interfaces
IPoIB: Clean up ethtool support
mlx4_core: Add Ethernet PCI device IDs
mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC
mlx4_core: Multiple port type support
mlx4_core: Ethernet MAC/VLAN management
mlx4_core: Get ethernet MTU and default address from firmware
mlx4_core: Support multiple pre-reserved QP regions
Update NetEffect maintainer emails to Intel emails
RDMA/cxgb3: Remove cmid reference on tid allocation failures
IB/mad: Use krealloc() to resize snoop table
IPoIB: Always initialize poll_timer to avoid crash on unload
IB/ehca: Don't allow creating UC QP with SRQ
mlx4_core: Add QP range reservation support
RDMA/ucma: Test ucma_alloc_multicast() return against NULL, not with IS_ERR()
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
sata_via: load DEVICE register when CTL changes
libata: set device class to NONE if phys_offline
libata-eh: fix slave link EH action mask handling
libata: transfer EHI control flags to slave ehc.i
libata-sff: fix ata_sff_post_internal_cmd()
libata: initialize port_task when !CONFIG_ATA_SFF
The Sony Vaio VGX-TP1E multimedia PC has a wireless keyboard with
a touchpad.
The mouse pointer is wrongly declared as constant non-data variable, which make
HID code to completely ignore all the "Pointer" usages.
Fix the report descriptor before it enters the parser to contain touchpad
pointer description that is correctly parsable (declaring data rather than
constant).
Reported-by: Stefan Hundhammer <sh@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Now that lookup_bdev is exported and used by dm just use it directly
instead of through a trivial wrapper.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
My change
commit e2a6b85247
net: Enable TSO if supported by at least one device
didn't do what was intended because the netdev_compute_features
function was designed for conjunctions. So what happened was that
it would simply take the TSO status of the last constituent device.
This patch extends it to support both conjunctions and disjunctions
under the new name of netdev_increment_features.
It also adds a new function netdev_fix_features which does the
sanity checking that usually occurs upon registration. This ensures
that the computation doesn't result in an illegal combination
since this checking is absent when the change is initiated via
ethtool.
The two users of netdev_compute_features have been converted.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
To avoid dock driver is loaded after other drivers like libata, let's
make dock driver not a module.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
There exists the following warning message will appear after the
following commit is merged.
>commit f2e969acd6d5981e6b1272810002558650d0736e
>Author: Zhao Yakui <yakui.zhao@intel.com>
>Date: Mon Aug 11 14:57:50 2008 +0800
>ACPI: Add "acpi.power_nocheck=1" to disable power state check in
power transition:
>WARNING: at linux-2.6/fs/sysfs/dir.c:463 sysfs_add_one+0x33/0x39()
>sysfs: duplicate filename 'acpi' can not be created
>kobject_add_internal failed for acpi with -EEXIST, don't try to register
things with the same name in the same directory
In the above commit the "acpi.power_nocheck" module parameter is defined
in drivers/acpi/power.c file. As several module parameters using the same ACPI
prefix are defined in the different files(for example: power_nocheck is
defined in drivers/acpi/power.c,debug_layer/debug_level are defined in
drivers/acpi/debug.c) and there exists another module between them, the
warning message will be printed when using the current generic param code.
(In the function of param_sysfs_init).
In fact when ACPI is selected, the drivers/acpi/power will also be compiled
as built-in kernel.So this issue can be fixed by the following approach.
workaround it by adjusting the module link order in drivers/acpi/Makefile.
In such case the module parameter using the same prefix(ACPI) are put together
in the param data section.
Of course the better solution is to fix it in generic param code related
with sysfs.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/misc/intel_menlow.c:107: warning: format ‘%ld’ expects type ‘long int’, but argument 3 has type ‘long long unsigned int’
Signed-off-by: Len Brown <len.brown@intel.com>
This fixes vblank support for a 32-bit X Server on a 64-bit kernel.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
vblank in the kernel is far simpler if it deals with pipes instead of
planes, so we're changing both user and kernel side.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
To synchronize clip lists with the X server, the DRM lock must be held while
looking at drawable clip lists. To synchronize with other ring access, the
ring mutex must be held while inserting commands into the ring. Failure to
do the first resulted in easy visual corruption when moving windows, and the
second could have corrupted the ring with DRI2.
Grabbing the DRM lock involves using the DRM tasklet mechanism, grabbing the
ring mutex means potentially sleeping. Deal with both of these by always
running the tasklet from a work handler.
Also, protect from clip list changes since the vblank request was queued by
making sure the window has at least one rectangle while looking inside,
preventing oopses .
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Otherwise, if we lost the race, the pipestat bit would be set without being
reflected in IIR, and we would never clear the pipestat bit so the pipe
event would never be generated again, and all vblank waits would time out.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
If the failing paths were hit, the vblank IRQ would never get turned off
again.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Current Intel errata for the GM965 says that using MSI may cause interrupts
to be delayed or lost. The only workaround offered is to not use it.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This avoids setting the cliprects pointer to a zero-sized allocation.
Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This uses the same spinlock as the user_irq code as it shares the same
register, ensuring that interrupt registers are updated atomically.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
sync with acpi_driver_data(device)
and acpi_evaluate_integer(..., long long)
changes that happened since this driver
was checked in.
Signed-off-by: Len Brown <len.brown@intel.com>
Allow zero length strings during interpreter buffer-to-string
conversions. For example, during the ToDecimalString and
ToHexString operaters, as well as implicit conversions. Fiodor
Suietov. ACPICA BZ 585.
http://www.acpica.org/bugzilla/show_bug.cgi?id=585
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Validates predefined ACPI objects that appear in the namespace,
at the time they are evaluated. The argument count and the type of
the returned object are validated. The purpose of this validation
is to detect problems with the BIOS-exposed predefined ACPI objects
before the results are returned to the ACPI-related drivers.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Predicate can be used for an implicit return value.
This change improves the implicit return mechanism to be more
compatible with the MS interpreter.
http://www.acpica.org/bugzilla/show_bug.cgi?id=349
Below AML code from http://bugzilla.kernel.org/show_bug.cgi?id=10686
Store(0x07D6, OSYS)
Method (_CRT, 0, Serialized)
{
If (LLess (OSYS, 0x07D6))
{
If (LEqual (\_SB.TJ85, Zero))
{
Return (Add (0x0AAC, Multiply (TPC, 0x0A)))
}
Else
{
Return (Add (0x0AAC, Multiply (TP85, 0x0A)))
}
}
}
Previously _CRT returns 0x07D6, now it returns 0 (predicate value of LLess)
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Fixed a couple memory leaks associated with "implicit return" objects
when the AML Interpreter slack mode is enabled.
http://www.acpica.org/bugzilla/show_bug.cgi?id=349
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Eliminate duplicate code.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Fixed two possible memory leaks in the error exit paths of
acpi_ut_update_objerct_reference() and
acpi_ut_walk_package_tree()
These functions are similar in that they use a stack of state objects in
order to eliminate recursion. The stack must be fully deallocated
if an error occurs.
http://www.acpica.org/bugzilla/show_bug.cgi?id=383
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Fixes a crash if a memory allocation fails during the Op completion
routine acpi_ps_complete_this_op().
http://www.acpica.org/bugzilla/show_bug.cgi?id=492
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Removed the ACPI_BITREG_WAKE_ENABLE definition and entry in the
global register table. This bit does not exist and is unused.
http://www.acpica.org/bugzilla/show_bug.cgi?id=442
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Fixes a memory leak in the error exit path.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Fix some sloppiness in the Reference object. No longer use AML
opcodes to differentiate the types, introduce new reference
Class. Cleanup the debug output code.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Some formatting and spelling fixes.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
1) Add new field for use by DdbHandle (Value)
2) Use ACPI_CAST_INDIRECT_PTR to eliminate strict type warnings
3) Cleanup debug output
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Previously aborted with error if too few arguments were passed to
a control method via the external ACPICA interface. Now issue a
warning instead and continue. Handles the case where the method
inadvertently declares too many arguments, but does not actually
use the extra ones. Applies mainly to the predefined methods.
http://bugzilla.kernel.org/show_bug.cgi?id=11032
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Return AE_TYPE for objects that have no value and therefore
evaluation is undefined: Device, Event, Mutex, Region, Thermal,
and Scope.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Removed ACPI_DB_WARN and ACPI_DB_ERROR. These debug levels were
made obsolete by the ACPI_WARNING and ACPI_ERROR/ACPI_EXCEPTION
interfaces. Also added ACPI_DB_EVENTS to correspond with the
existing ACPI_LV_EVENTS.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
ACPI_DB_ERROR and ACPI_DB_WARN were removed from ACPICA core.
So replace ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ...) with printk(KERN_ERR PREFIX ...)
and ACPI_DEBUG_PRINT((ACPI_DB_WARN, ...) with printk(KERN_WARNING PREFIX ...)
We do not use ACPI_ERROR/ACPI_WARNING since they're not exported, see
-------------------------------------------------------------
commit 6468463abd
Author: Len Brown <len.brown@intel.com>
Date: Mon Jun 26 23:41:38 2006 -0400
ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...)
Signed-off-by: Len Brown <len.brown@intel.com>
-------------------------------------------------------------
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Better error messages during object conversion from internal
to the external ACPI_OBJECT. Used for external calls to
acpi_evaluate_object.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Created for improved error messages.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Also update the debugger so that the correct number of arguments is
passed to the method. Prevents a warning message from the debugger.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Fixes warning from exconfig.c on 64-bit build.
AK: This actually was fixed earlier in Linux, this just syncs with
AK: the version of the fix that went into the ACPCA codebase
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Examines the return object from a call to acpi_evaluate_object.
Any Index or RefOf references are automatically dereferenced in
an attempt to return something useful (these reference types
cannot be converted into an external ACPI_OBJECT.)
Lin Ming, Bob Moore.
http://bugzilla.kernel.org/show_bug.cgi?id=11105
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Return status from acpi_ut_init_globals. This is used by both
the kernel subsystem and the utilities such as iASL compiler.
The function could possibly fail when the caches are initialized.
Yang Yi.
Signed-off-by: Yi Yang <yi.y.yang@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Split the ACPI table compare. First check that the lengths match
exactly. Then compare the data.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Without this change, a table cannot be loaded again once it has
been loaded/unloaded one time. The current mechanism does not
unregister a table upon an unload. During a load, if the same
table is found, this no longer returns an exception.
http://www.acpica.org/bugzilla/show_bug.cgi?id=722
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Return AE_BAD_PARAMETER if input handle is invalid.
http://www.acpica.org/bugzilla/show_bug.cgi?id=474
Signed-off-by: Fiodor Suietov <fiodor.f.suietov@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Previously, dynamically loaded tables were simply mapped, but on some machines
this memory is corrupted after suspend. Now copy the table to a local buffer.
For OpRegion case, added checksum verify. Use the table length from the table header,
not the region length. For Buffer case, use the table length also.
http://bugzilla.kernel.org/show_bug.cgi?id=10734
Signed-off-by: Dennis Noordsij <dennis.noordsij@helsinki.fi>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
VIA controllers clear DEVICE register when IEN changes. Make sure
DEVICE is updated along with CTL.
This change is separated from Joseph Chan's larger patch.
http://thread.gmane.org/gmane.linux.kernel.commits.mm/40640
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Joseph Chan <JosephChan@via.com.tw>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Reset methods don't have access to phys link status for slave links
and may incorrectly indicate device presence causing unnecessary probe
failures for unoccupied links. This patch clears device class to NONE
during post-reset processing if phys link is offline.
As on/offlineness semantics is strictly defined and used in multiple
places by the core layer, this won't change behavior for drivers which
don't use slave links.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Slave link action mask is transferred to master link and all the EH
actions are taken by the master link. ata_eh_about_to_do() and
ata_eh_done() are called with ATA_EH_ALL_ACTIONS to clear the slave
link actions during transfer. This always sets ATA_PFLAG_RECOVERED
flag causing spurious "EH complete" messages.
Don't set ATA_PFLAG_RECOVERED for slave link actions.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ATA_EHI_NO_AUTOPSY and ATA_EHI_QUIET are used to control the behavior
of EH. As only the master link is visible outside EH, these flags are
set only for the master link although they should also apply to the
slave link, which causes spurious EH messages during probe and
suspend/resume.
This patch transfers those two flags to slave ehc.i before performing
slave autopsy and reporting.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ata_sff_post_internal_cmd() needs to grab port lock before calling
ata_bmdma_stop() and also need to clear hsm_task_state. Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ap->port_task was not initialized if !CONFIG_ATA_SFF later triggering
lockdep warning. Make sure it's initialized.
Reported by Larry Finger.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The pattern !E && !E->fld is nonsensical. The patch below updates this
according to the assumption that && should be ||. But perhaps another
solution was intended.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@disable and_comm@
expression E;
identifier fld;
@@
- !E && !E->fld
+ !E || !E->fld
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This patch adds polling mechanism for Data Link Layer Link Active bit
after turning power on, instead of waiting for 1000 msec. This reduces
reduce the unnecessary long wait.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Some firmware fail to properly configure P2P bridges, leaving them
with invalid bus numbers. In some cases, this happens on some embedded
4xx boards as the result of the kernel allocating different bus space
than the firmware does to host bridges while not setting
pcibios_assign_all_busses() for various reasons. In other cases, it can
just be bogus firmware.
This adds some sanity checking to the PCI probing code. If a bridge is
found whose primary bus number doesn't match the bus it's sitting on,
or whose secondary bus number not strictly above it's primary bus
number, then the bridge bus numbers are deconfigured in the first pass
of pci_scan_bridge() to be re-assigned in the second pass.
Tested-by: "Ayman El-Khashab" <AymanE@tanisys.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
The PCI core now manages slot names on behalf of slot detection
and slot hotplug drivers, including the handling of duplicate
slot names.
We can use the fakephp driver to help test the new functionality.
Add a 'dup_slots' module param to force fakephp to create multiple
slots with the same name. We can then verify that the PCI core
correctly renamed the slots.
sapphire:/sys/bus/pci/slots # modprobe fakephp dup_slots
sapphire:/sys/bus/pci/slots # ls
fake fake-10 fake-3 fake-5 fake-7 fake-9
fake-1 fake-2 fake-4 fake-6 fake-8
Cc: kristen.c.accardi@intel.com
Cc: matthew@wil.cx
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Now that the PCI core manages the 'name' for each individual
hotplug driver, and all drivers (except rpaphp) have been converted
to use hotplug_slot_name(), there is no need for the PCI hotplug
core to drag around its own copy of name either.
Cc: kristen.c.accardi@intel.com
Cc: matthew@wil.cx
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
We do not need to manage our own name parameter, especially since
the PCI core can change it on our behalf, in the case of duplicate
slot names.
Remove 'name' from shpchp's version of struct slot.
This change also removes the unused struct task_event from the
slot structure.
Cc: kristen.c.accardi@intel.com
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
We no longer need to manage our version of hotplug_slot->name
since the PCI and hotplug core manage it on our behalf.
Update the sn_hp_slot_private_alloc() interface to fill in
the correct name for us, as that function already has all
the parameters needed to determine the name.
Cc: kristen.c.accardi@intel.com
Cc: jpk@sgi.com
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
rpaphp tends to use slot->name directly everywhere, and doesn't
ever need slot->hotplug_slot->name.
struct hotplug_slot->name is going away, so convert rpaphp directly
manipulate its own slot->name everywhere, and don't bother touching
slot->hotplug_slot->name.
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
We do not need to manage our own name parameter, especially since
the PCI core can change it on our behalf, in the case of duplicate
slot names.
Remove 'name' from pciehp's version of struct slot, and remove
unused 'task_list' as well.
Cc: kristen.c.accardi@intel.com
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
We no longer need to manage our version of hotplug_slot->name
since the PCI and hotplug core manage it on our behalf.
Now, we simply advise the PCI core of the name that we would
like, and let the core take care of the rest.
Additionally, slightly rearrange the members of struct slot
so they are naturally aligned to eliminate holes.
Cc: jbarnes@virtuousgeek.org
Cc: kristen.c.accardi@intel.com
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Remove 'name' from fakephp's struct dummy_slot, as the PCI core
will now manage our slot name for us.
Cc: jbarnes@virtuousgeek.org
Cc: kristen.c.accardi@intel.com
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
In preparation for cleaning up the various hotplug drivers
such that they don't have to manage their own 'name' parameters
anymore, we provide the following convenience functions:
pci_slot_name()
hotplug_slot_name()
These helpers will be used by individual hotplug drivers.
Cc: kristen.c.accardi@intel.com
Cc: matthew@wil.cx
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
We no longer need to manage our version of hotplug_slot->name
since the PCI and hotplug core manage it on our behalf.
Now, we simply advise the PCI core of the name that we would
like, and let the core take care of the rest.
Cc: jbarnes@virtuousgeek.org
Cc: kristen.c.accardi@intel.com
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
We no longer need to manage our version of hotplug_slot->name
since the PCI and hotplug core manage it on our behalf.
Now, we simply advise the PCI core of the name that we would
like, and let the core take care of the rest.
Cc: kristen.c.accardi@intel.com
Cc: scottm@somanetworks.com
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
We do not need to manage our own name parameter, especially since
the PCI core can change it on our behalf, in the case of duplicate
slot names.
Remove 'name' from acpiphp's version of struct slot.
Cc: kristen.c.accardi@intel.com
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Prevent callers of pci_create_slot() from registering slots with
duplicate names. This condition occurs most often when PCI hotplug
drivers are loaded on platforms with broken firmware that assigns
identical names to multiple slots.
We now rename these duplicate slots on behalf of the user.
If firmware assigns the name N to multiple slots, then:
The first registered slot is assigned N
The second registered slot is assigned N-1
The third registered slot is assigned N-2
etc.
This is the permanent fix mentioned in earlier commits d6a9e9b4 and
167e782e (shpchp/pciehp: Rename duplicate slot name...).
We take advantage of the new 'hotplug' parameter in pci_create_slot()
to prevent a slot create/rename race between hotplug drivers and
detection drivers.
Scenario A:
hotplug driver detection driver
-------------- ----------------
pci_create_slot(hotplug=set)
pci_create_slot(hotplug=NULL)
The hotplug driver creates the slot with its desired name, and then
releases the semaphore. Now, the detection driver tries to create
the same slot, but it already exists. We don't care about renaming,
so return the existing slot.
Scenario B:
hotplug driver detection driver
-------------- ----------------
pci_create_slot(hotplug=NULL)
pci_create_slot(hotplug=set)
The detection driver creates the slot with name "X". Then the hotplug
driver tries to create the same slot, but wants the name "Y" instead.
We detect that we're trying to create the same slot and that we also
want a rename, so rename the slot to "Y" and return.
Scenario C:
hotplug driver hotplug driver
-------------- ----------------
pci_create_slot(hotplug=set)
pci_create_slot(hotplug=set)
Two separate hotplug drivers are attempting to claim the slot and
are passing valid hotplug_slot args to pci_create_slot(). We detect
that the slot already has a ->hotplug callback, prevent a rename,
and return -EBUSY.
Cc: kristen.c.accardi@intel.com
Cc: matthew@wil.cx
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Convert the pci_hotplug_slot_list_lock, which only protected the
list of hotplug slots, to a pci_hp_mutex which now protects both
interfaces.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Slot detection drivers can co-exist with hotplug drivers. The names
of the detected/claimed slots may be different depending on module
load order.
For legacy reasons, we need to allow hotplug drivers to override
the slot name if a detection driver is loaded first (and they find
the same slots).
Creating and overriding slot names should be an atomic operation,
otherwise you get a locking nightmare as various drivers race to
call pci_create_slot().
pci_create_slot() is already serialized by grabbing the pci_bus_sem.
We update the API and add a 'hotplug' param, which is:
set if the caller is a hotplug driver
NULL if the caller is a detection driver
pci_create_slot() does not actually use the 'hotplug' parameter in this
patch. A later patch will add the logic that uses it.
Cc: kristen.c.accardi@intel.com
Cc: matthew@wil.cx
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
The GPL exported symbol pci_update_slot_number has been renamed to
pci_renumber_slot. Some of the safety checks were unnecessary and
were removed.
Cc: kristen.c.accardi@intel.com
Cc: matthew@wil.cx
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Update pci_hp_register() to take a const char *name parameter.
The motivation for this is to clean up the individual hotplug
drivers so that each one does not have to manage its own name.
The PCI core should be the place where we manage the name.
We update the interface and all callsites first, in a
"no functional change" manner, and clean up the drivers later.
Cc: kristen.c.accardi@intel.com
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Sometimes, it's necessary to enable software's ability to quiesce and
reset endpoint hardware with function-level granularity, so provide
support for it.
The patch implement Function Level Reset(FLR) feature following PCI-e
spec. And this is the first step. We would add more generic method, like
D0/D3, to allow more devices support this function.
The patch contains two functions. pcie_reset_function() is the new
driver API, and, contains some action to quiesce a device. The other
function is a helper: pcie_execute_reset_function() just executes the
reset for a particular device function.
Current the usage model is in KVM. Function reset is necessary for
assigning device to a guest, or moving it between partitions.
For Function Level Reset(FLR), please refer to PCI Express spec chapter
6.6.2.
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
pci_get_subsys() will decrement the reference count of the device that
it starts searching from. Unfortunately, the pci_find_device() interface
will already have decremented the reference count of the device earlier,
so the device will end up losing all reference counts and be freed.
We can fix this by incrementing the reference count of the device to
start searching from before calling pci_get_subsys().
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Currently linux doesn't have any code to set the "MSI supported" bit in
Support Fireld of _OSC. This patch adds the code for that.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
If acpi_query_osc() returns other than AE_OK, __pci_osc_support_set()
stops scanning ACPI objects to evaluate _OSC. This prevents subsequent
_OSCs from being evaluated if some of root bridge doesn't have _OSC, for
example. So acpi_query_osc() should return always AE_OK to evaluate all
_OSC.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
In current pci_osc_control_set() implementation, once the _OSC control
field is queried, it is never queried again. But the query result can
change depending on the _OSC support field. For example, if PCI Express
Native Hot Plug control depends on ASPM support on a certain platform, a
PCI Express Native Hot Plug Control query would fail before the ASPM
driver was loaded, but it would succeed if the ASPM driver was loaded
first. Therefore, pci_osc_control_set() should query the _OSC control
field every time.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Current pci_osc_control_set() evaluates _OSC without query for control
bits, unless __pci_osc_support_set() is called beforehand. But as
strongly recommended in PCI firmware specification, it should query
control bits first.
This patch changes pci_osc_control_set() to query control bits first
even if __pci_osc_support_set() is not called beforehand.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Fix possible race condition on _OSC evaluation.
Current _OSC evaluation code has possible race condition because it
maniputes osc_data linked list or its contents without any lock
mechanism.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Since the ehca device driver does not support dynamic memory add and
remove operations, the driver must explicitly reject such requests in
order to prevent unpredictable behaviors related to existing memory
regions that cover all of memory being used by InfiniBand protocols in
the kernel.
The solution (for now at least) is to add a memory notifier to the
ehca device driver and if a request for dynamic memory add or remove
comes in, ehca will always reject it. The user can add or remove
memory by hot-removing the ehca adapter, performing the memory
operation, and then hot-adding the ehca adapter back.
Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Because ehca adapters can differ in the maximum number of QPs and CQs
we have to save the maximum number of these ressources per adapter and
not globally per ehca driver. This fix introduces 2 new members to the
shca structure to store the maximum value for QPs and CQs per adapter.
The module parameters are now used as initial values for those
variables. If a user selects an invalid number of CQs or QPs we don't
print an error any longer, instead we will inform the user with a
warning and set the values to the respective maximum supported by the
HW.
Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Child devices were created without any offload features set, fix this by
moving the code that computes the features into generic function which is
now called through non-child and child device creation.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
-- v1 has a bug where the 'result' flag in ipoib_vlan_add may be used uninitialized
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Add a get_rx_csum method. Remove the driver's own get_tso method, as
the ethtool kernel code uses the default one if nothing is provided.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The Mellanox ConnectX can operate as an InfiniBand adapter, as an
Ethernet NIC, or as a Fibre Channel (FC) HBA. The kernel has a
low-level driver, mlx4_core, which handles multiplexing access to the
device, and there is also already an InfiniBad driver, mlx4_ib.
This patch adds a new driver, mlx4_en, which implements a standard
Ethernet NIC driver.
Signed-off-by: Liran Liss <liranl@mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Multi-protocol adapters support different port types. Each consumer
of mlx4_core queries for supported port types; in particular mlx4_ib
can no longer assume that all physical ports belong to it. Port type
is configured through a sysfs interface. When the type of a port is
changed, all mlx4 interfaces are unregistered, and then registered
again with the new port types.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
panasonic-laptop uses many acpi_*() functions so it should
depend on ACPI; otherwise there are approximately 70
warnings/errors generated.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Based on analysis and a patch from Matthew Garrett <mjg59@srcf.ucam.org>.
Instruct the ThinkPad ACPI firmware to remove delays on the processing of
backlight brightness changes. This method is present on ThinkPad
Vista-compatible BIOSes with standard ACPI backlight level control.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Yves-Alexis Perez <corsac@debian.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Pascal Terjan <pterjan@mandriva.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Trivial fix makes the error message match the code before it (ibm->driver
vs ibm->acpi-driver) better.
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Attempt to preserve fan state across sleep and hibernation if the fan
control mode is enabled.
For safety reasons, only the PWM OFF (fan at 100%) or maximum
closed-loop level (level 7) are preserved. If the fan state was set
to anything else, it will not be restored.
Also, should the fan be at PWM OFF mode at resume, it will be left at
that state (but this is extremely unlikely, no ThinkPad firmware was
ever reported to do this).
For reference, the known states used for fan control upon resume by
the firmware are either "auto" or "level 7" depending on whether the
laptop wakes due to normal conditions or a thermal emergency.
Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=11331
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Richard Hartmann <richih.mailinglist@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Badness at /home/proski/src/linux-2.6/net/mac80211/rx.c:2200
NIP: c02bc850 LR: c02ab268 CTR: 00000000
REGS: ef01fcc0 TRAP: 0700 Tainted: G W (2.6.27-wl)
MSR: 00029032 <EE,ME,IR,DR> CR: 22004084 XER: 20000000
TASK = c1a58800[1778] 'p54pci' THREAD: ef01e000
[...]
NIP [c02bc850] __ieee80211_rx+0x17c/0x638
LR [c02ab268] ieee80211_tasklet_handler+0x104/0x120
Call Trace:
[ef01fd70] [c1a0c020] 0xc1a0c020 (unreliable)
[ef01fdb0] [c02ab268] ieee80211_tasklet_handler+0x104/0x120
[...]
the problem was that some older cards are mis-identified and didn't support
5GHz rates, while they have the right MAC & Synth chip.
This patch changes the way how p54 decides if it should enable 11a channels
or not.
Reported-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
orinoco_dl_firmware and symbol_dl_mage allocate large local
variables (1K); at least orinoco fails with panic or hung
kernel if 4K stacks is enabled.
Allocate large buffers dynamically at run time.
Tested-By: Andrey Borzenkov <arvidjaar@mail.ru> for Agere case
Signed-off-by: Andrey Borzenkov < arvidjaar@mail.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Based on a patch by Elias Oltmanns, we call ath5k_init in resume even
if we didn't previously open the device. Besides starting up the
device unnecessarily, this also causes an oops on rmmod because
mac80211 will not invoke ath5k_stop and softirqs are left running after
the module has been unloaded. Add a new state bit, ATH_STAT_STARTED,
to indicate that we have been started up.
Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Code in `pci_link.c' is calling the internal routine `acpi_ut_evaluate_object'
which is dangerous given that it is passing a NULL pointer when it should
be passing a pointer to a real object. The patch corrects the issue by
having the code call the external routine `acpi_evaluate_object', which
correctly handles a NULL pointer.
Signed-off-by: Don Dugger <donald.d.dugger@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
According to ACPI spec when the status of some device is not present
but functional, the device is valid and the children of this device
should be enumerated. It means that the device should be added to
linux acpi device tree. But the device driver for this device should not
be loaded.
The detailed info can be found in the section 6.3.7 of ACPI 3.0b spec.
_STA may return bit 0 clear (not present) with bit 3 set (device is
functional). This case is used to indicate a valid device for which no
device driver should be loaded (for example, a bridge device.).
Children of this device may be present and valid. OS should continue
enumeration below a device whose _STA returns this bit combination
http://bugzilla.kernel.org/show_bug.cgi?id=3358
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Add the DMI check to disable power check in the course of device power
transistion.
http://bugzilla.kernel.org/show_bug.cgi?id=11000
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Maybe the incorrect power state is returned on the bogus bios, which
is different with the real power state. For example: the bios returns D0
state and the real power state is D3. OS expects to set the device to D0
state. In such case if OS uses the power state returned by the BIOS and
checks the device power state very strictly in power transition, the device
can't be transited to the correct power state.
So the boot option of "acpi.power_nocheck=1" is added to avoid checking
the device power in the course of device power transition.
http://bugzilla.kernel.org/show_bug.cgi?id=8049http://bugzilla.kernel.org/show_bug.cgi?id=11000
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Attach the ACPI device to the ACPI handle as early as possible so that OS
can get the corresponding ACPI device by the acpi handle in the course
of getting the power/wakeup/performance flags.
http://bugzilla.kernel.org/show_bug.cgi?id=8049http://bugzilla.kernel.org/show_bug.cgi?id=11000
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Get the device power state in the course of scanning device if the device
power flag is power_managable. i.e. The device has the _PSx/_PRx object.
At the same time before the drivers/acpi/power module is loaded, there is no
relation between acpi_power_resource and acpi device. So the first parameter
of acpi_power_get_state is changed to acpi_handle.
http://bugzilla.kernel.org/show_bug.cgi?id=8049http://bugzilla.kernel.org/show_bug.cgi?id=11000
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The AE_BAD_ADDRESS exception code is now unused in ACPICA.
For linux, it's only used at wmi.c and acer-wmi.c.
I checked both wmi.c and acer-wmi.c, the AE_BAD_ADDRESS exception code
has no special meaning. The parent functions just call AE_SUCCESS() or
AE_FAILURE() to check the return status.
So it's safe to replace AE_BAD_ADDRESS with AE_ERROR.
Signed-off-by Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Initially CONFIG_PM_SLEEP was defined as
CONFIG_SUSPEND || CONFIG_HIBERNATION and some ACPI code, most
importantly the code in drivers/acpi/main.c, was written with this
assumption. Currently, however, CONFIG_PM_SLEEP is also set when
CONFIG_XEN_SAVE_RESTORE is set.
This causes some compilation warnings to appear in
drivers/acpi/main.c if both CONFIG_SUSPEND and CONFIG_HIBERNATION
are unset and CONFIG_PM_SLEEP is set (this was impossible before).
To fix this problem, redefine CONFIG_ACPI_SLEEP do depend directly
on CONFIG_SUSPEND || CONFIG_HIBERNATION, as originally intended, and
use it instead of CONFIG_PM_SLEEP in drivers/acpi/main.c, wherever
appropriate.
Additionally, move the acpi_target_sleep_state definition from under
the #ifdef to prevent compilation from failing in some cases.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
Add support for managing MAC and VLAN filters for each port.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Oren Duer <oren@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
If present the info->archdata is copied into the dev->archdata.
Some (OpenFirmware) platforms need it.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
The chips directory under drivers/i2c is deprecated. Spread the word!
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Use the newly introduced pci_ioremap_bar() function in drivers/i2c.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Fix typo in debugging log message.
deteted --> detected
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Some I2C bus implementations need to synchronize with external
entities, such as system firmware, which might also be programming the
same I2C bus.
In order to facilitate this add ->xfer_begin() and ->xfer_end() hooks
which are invoked around pcf_xfer().
[JD: Make these hooks optional.]
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Get maximum ethernet MTU and default MAC address from the firmware
QUERY_DEV_CAP command.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
For ethernet support, we need to reserve QPs for the ethernet and
fibre channel driver. The QPs are reserved at the end of the QP
table. (This way we assure that they are aligned to their size)
We need to consider these reserved ranges in bitmap creation, so we
extend the mlx4 bitmap utility functions to allow reserved ranges at
both the bottom and the top of the range.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This patch (as1152) may help prevent some problems associated with the
new policy of unbinding drivers that don't support suspend/resume or
pre_reset/post_reset. If for any reason the resume or reset fails, and
the device is logically disconnected, there's no point in trying to
rebind the driver. So the patch checks for success before carrying
out the unbind/rebind.
There was a report from one user that this fixed a problem he was
experiencing, but the details never became fully clear. In any case,
adding these tests can't hurt.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes a memory leak on disconnect in cdc-acm
Thanks to 施金前 for finding it.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Here is an entry for the unusual_devs.h file to handle a Mio Moov 330 GPS that
stops responding when it is requested to transfer more than 64KB. The patch is
taken against kernel-2.6.27-git3.
Signed-off-by: Frédéric Marchal <frederic.marchal@wowcompany.co
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
this fixes an omission that led to no alias being computed for the
cdc-wdm module.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The request allocation code doesn't need to check if the
endpoint is not NULL, as the only caller in
include/linux/usb/gadget.h, usb_ep_alloc_request() needs the
endpoint pointer to have a correct value to trigger the
allocation code.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix kernel-doc warning, wrong parameter name listed:
Warning(lin2627-g3-kdocfixes//drivers/usb/gadget/config.c:183): No description found for parameter 'match'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1150) fixes a problem in the speedtch driver. When it
resets the modem during probe it will be unbound from the other
interfaces it has claimed, because it doesn't define a pre_reset and a
post_reset method.
The patch defines "do-nothing" methods. This fixes Bugzilla #11767.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In this patch, we want to do one thing: add more Huawei product IDs into the
USB driver. Then it can support more Huawei data card devices. So to declare
the unusual device for new Huawei data card devices in unusual_devs.h and to
declare more new product IDs in option.c.
To modify the data value and length in the function of
usb_stor_huawei_e220_init in initializers.c That's because based on the USB
standard, while sending SET_FETURE_D to the device, it requires the
corresponding data to be zero, and its sending length also must be zero. In
our old solution, it can be compatible with our WCDMA data card devices, but
can not support our CDMA data card devices. But in this new solution, it can
be compatible with all of our data card devices.
Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Here's the patch that implements the fix you suggested to avoid the
I/O errors that I was running into with my new USB enclosure with a
JMicron USB/ATA bridge, while issuing scsi-io USN or other such
queries used by Fedora's mkinitrd.
http://bugzilla.kernel.org/show_bug.cgi?id=9638#c85
/proc/bus/usb/devices:
T: Bus=01 Lev=01 Prnt=01 Port=07 Cnt=04 Dev#= 5 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=152d ProdID=2329 Rev= 1.00
S: Manufacturer=JMicron
S: Product=USB to ATA/ATAPI Bridge
S: SerialNumber=DE5088854FFF
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
(patch applied and retested on a modified 2.6.27.2-libre.24.rc1.fc10)
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Cc: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
debugfs_create_file() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some Toshiba Mobile I/O chips have OHCI controller built in.
E.g. the tc6393xb chip found in several Toshiba e-Series PDAs
and in Sharp Zaurus SL-6000 PDA. This adds platform glue
to support OHCI function of the chip.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: Ian Molton <spyro@f2s.com>
Cc: Ian Molton <spyro@f2s.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch cleans up the module init functions a bit and removes the redundant
device ID check from wb35_probe() function.
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The driver code uses do { } while (0) together with the break statement to
emulate gotos for error handling. Fix that up by using the goto statement
instead.
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes the OS_SPIN_LOCK and related wrappers from the driver code.
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
These functions aren't used yet, so put them behind the
proper #define so the compiler doesn't complain about them.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Change C99 comments to C89 comments
Some nested comments seem to have been missed and some blocks are redundantly
commented, but at least most of the //'s are gone
Signed-off by: J.R. Mauro <jrm8005@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix all complaints that checkpatch had regarding this patch
Signed-off-by: Lior Dotan <liodot@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Import the changes from the upstream driver into this version to keep
things up to date.
Cc: Yokota Hiroshi <yokota@netlab.cs.tsukuba.ac.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is the first cut at a driver for the Redrapids Pocket Change
CardBus devices.
Receiving data seems to work properly, but overflows happen on transmit.
Still needs more hardware debugging to work properly.
(cleaned up to use proper driver core api functions by Greg)
From: Vijay Kumar <vijaykumar@bravegnu.org>
Cc: Alexey Zaytsev <alexey.zaytsev@gmail.com>
Cc: Jaya Kumar <jayakumar.lkml@gmail.com>
Cc: Ken Sienski <sienski@redrapids.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes the very noisy "end of function" markers that are
very annoying when reading the driver code.
Cc: David Rowe <david@rowetel.com>
Cc: Steve Underwood <steveu@coppice.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The kernel is written in C, so remove the __cplusplus macro magic from the
driver.
Cc: David Rowe <david@rowetel.com>
Cc: Steve Underwood <steveu@coppice.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes dead code that is wrapped in #ifndef __KERNEL__.
Cc: David Rowe <david@rowetel.com>
Cc: Steve Underwood <steveu@coppice.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes the malloc()/free() macro wrappers and converts
call-sites to use kcalloc() and kzalloc() where appropriate. I also
fixed up out-of-memory error handling in couple of places where it was
broken.
Cc: David Rowe <david@rowetel.com>
Cc: Steve Underwood <steveu@coppice.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Split out the external interface to a separate file called oslec.h .
Give the struct a name while we're at it.
Signed-off-by: Tzafrir Cohen <tzafrir@cohens.org.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes some obfuscating typedefs from the driver code.
Cc: Pavel Machek <pavel@suse.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The file(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
drivers/staging/slicoss/slicoss.c
This patch removes the said #include <version.h>.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The file(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
drivers/staging/go7007/go7007-driver.c
drivers/staging/go7007/go7007-fw.c
drivers/staging/go7007/go7007-i2c.c
drivers/staging/go7007/go7007-usb.c
drivers/staging/go7007/snd-go7007.c
drivers/staging/go7007/wis-ov7640.c
drivers/staging/go7007/wis-saa7113.c
drivers/staging/go7007/wis-saa7115.c
drivers/staging/go7007/wis-sony-tuner.c
drivers/staging/go7007/wis-tw2804.c
drivers/staging/go7007/wis-tw9903.c
drivers/staging/go7007/wis-uda1342.c
This patch removes the said #include <version.h>.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Following Andrew Morton's review for this patch I made a patch that
fixes most of the remarks.
I've converted the sleep_on_timeout to wait_event_timeout but I
probably not in the right way.
Also I don't know what's the problem with the calls for get_user() so
I left them untouched.
Signed-off-by: Lior Dotan <liodot@gmail.com>
Cc: Andrew Morton <akpm@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This hides under DEBUG_REGISTER_TRACE so probably
not visible to many people.
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix leak in at76_usb as reported in:
http://bugzilla.kernel.org/show_bug.cgi?id=11778
Reported-by: Daniel Marjamäki <danielm77@spray.se>
Signed-off-by: Diego Calleja <diegocg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
sxghif.h has code that explicitly will not build fo other architecures.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The appletouch mouse devices are grabbed by the hid bus and not
released even if apple driver says ENODEV (as expected) -- these
are composite USB devices, for which we only ignore the mouse
interface. This is currently not handled by hidbus code properly.
Move the ignoring one level upper to forbid the hid layer to grab the
device.
Reported-by: Justin Mattock <justinmattock@gmail.com>
Reported-by: Steven Noonan <steven@uplinklabs.net>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add type to the hid structure to distinguish to which device type
(now only mouse) we are talking to. Needed for per device type ignore
list support.
Note: this patch leaves the type as unknown for bluetooth devices,
there is not support for this in the hidp code.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Implement polling for 5200FEC to make netconsole work. Tested on
Phytec pcm030 and Efika.
Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The chip can issue spurious interrupts for single interrupt
modes. We use disable to clear the condition and allow processing to
continue. Also got rid of legacy specific code since it now needs to
be done on MSI single irq also.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch extends the critical regions covered by lp->lock to make it
safer on SMP. The main failure point was the smc911x_hard_start_xmit
function being called from different CPUs. It was tested on the ARM SMP
platforms.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Platforms like ARM Ltd's RealView require the IRQ polarity bit to be set
for the SMC9118 chip. This patch allows the dynamic configuration via
the smc911x_platdata structure.
This patch also changes the smc91x_platdata structure name to the
correct smc911x_platdata in the smc911x_drv_probe() function.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Since more ARM platforms use this device, it is easier to add a
dependency on ARM rather than individual platforms.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The 8139 drivers are a source of error messages that confuse users.
Since this device can not be disambiguated by normal PCI device
id's two drivers match the same info. But the module utilities
seem to correctly handle this overlap, they try one driver, then
if that doesn't load try the other. Therefore there is no need for
a message to be logged with error level severity, just using info
level instead. Can't be completely silent because user might have
configure one driver and forgot the other one.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add a bool IGB_DCA defined to y if IGB and DCA are enabled, but IGB isn't y while DCA=m. And thus remove the need to select INTEL_IOATDMA when IGB is enabled, so that non-x86 architectures can build the igb driver.
Based on work/patch from Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The 82575 has an issue in which the DMA will go out of sync if the link
partner goes into an L0s state. To prevent this we set the pci-e link
partner capability bits to disable the L0s transition on the hw.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch implements the memory notifier to update the busmap
instantly instead of rebuilding the whole map. This is necessary
because walk_memory_resource provides different information than
required during memory hotplug.
Signed-off-by: Hannes Hering <hering2@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
remove integer casting in the read/write IO accessors,
because Blackfin now provides those functions
Tested-by: Javier Herrero <jherrero@hvsistemas.es>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 147e70e6 ("cxgb3: Use SKB list interfaces instead of home-grown
implementation.") causes a crash in t3_l2t_send_slow() when an iWARP
connection request is received. This is because the new l2t_entry.arpq
skb queue is never initialized, and therefore trying to add an skb to
it causes a NULL dereference. With the old code there was no need to
initialize the queues because the l2t_entry structures were zeroed,
and the code used NULL to mean empty.
Fix this by adding __skb_queue_head_init() when all the l2t_entry
structures get allocated.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Currently SMC911x driver is broken on ARM/PXA builds.
Unbreak such configurations.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Disable NAPI if a failure occurs when setting up the interface. Leaving
it enabled could cause a BUG the next time an ifconfig up is issued.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
RBTX4939 board has SMC91X chip and there can be other MIPS boards with
that chip. Make SMC91X selectable on all MIPS board would be better than
enumerating each boards in Kconfig.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: jeff@garzik.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
platform_get_irq*() returns on -ENXIO when the resource cannot be
found, but this remains unnoticed if stored in an unsigned.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Checking the signature of the eeprom and the validity of the
MAC address should be enough to filter out the bad addresses
observed so far.
Contributed by Ivan Vecera and Martin Capitanio.
Tested on 8102el, 8168b and 8169 for a start.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
I prefer the debug information to be displayed until
the issue is properly handled.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
The Intel 7300 Memory Controller supports dynamic throttling of memory which can
be used to save power when system is idle. This driver does the memory
throttling when all CPUs are idle on such a system.
Refer to "Intel 7300 Memory Controller Hub (MCH)" datasheet
for the config space description.
Signed-off-by: Andy Henroid <andrew.d.henroid@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Removed __devexit annotation of hvc_remove() to avoid a section mismatch
if the backend initialization fails and hvc_remove() must be used to
clean up allocated hvc structs (called in section __init or __devinit).
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The patch provides the hvc_resize() function to update the terminal
window dimensions (struct winsize) for a specified hvc console.
The function stores the new window size and schedules a function
that finally updates the tty winsize and signals the change to
user space (SIGWINCH).
Because the winsize update must acquire a mutex and might sleep,
the function is scheduled instead of being called from hvc_poll()
or khvcd.
This patch uses the tty_do_resize() routine from the tty layer.
A pending resize work is canceled in hvc_close() and hvc_hangup().
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
If put_char() routine of a hvc console backend returns 0, then the
hvc console starts looping in the following scenarios:
1. hvc_console_print()
If put_char() returns 0 then the while loop may loop forever.
I have added the missing check for 0 to throw away console messages.
2. khvcd may loop:
The thread calls hvc_poll() --> hvc_push()... if there are still
buffered data then the HVC_POLL_WRITE bit is set and causes the
khvcd thread to loop (if yield() returns immediately).
However, instead of looping, the khvcd thread could sleep for
MIN_TIMEOUT (doing the same as for get_chars()).
The MIN_TIMEOUT is set if hvc_push() was not able to write
data to the backend. If data has been written, the timeout is
set to 0 to immediately re-schedule hvc_poll().
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> (virtio_console)
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
After a tty hangup() or close() operation, processes might not reset the
termio settings to a sane state. In order to reset the termios to its
default settings the tty driver flag TTY_DRIVER_RESET_TERMIOS has been added.
TTY driver flag description from include/linux/tty_driver.h:
TTY_DRIVER_RESET_TERMIOS --- requests the tty layer to reset the
termios setting when the last process has closed the device.
Used for PTY's, in particular.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
I have added a hangup notifier that can be used by hvc console
backends to handle a tty hangup. The default irq hangup notifier
calls the notifier_del_irq() for compatibility.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
sm501_devdata->irq is unsigned, while platform_get_irq() returns a
signed int.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
Use the newly introduced pci_ioremap_bar() function in drivers/mfd.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This makes the contents of the cache clearer and fixes incorrect
initialisation of the cache for partially volatile registers.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
October 10th linux-next build (powerpc allyesconfig) failed like this:
drivers/mfd/wm8350-core.c:1131: error: __ksymtab_wm8350_create_cache causes a section type conflict
Caused by commit 89b4012bef ("mfd: Core
support for the WM8350 AudioPlus PMIC"). wm8350_create_cache is not used
elsewhere, so remove the EXPORT_SYMBOL.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This adds basic support for the GPIOs in the twl4030 power management
chip. That includes two open drain LED drivers, and the use of GPIO-0
(and GPIO-1) as MMC/SD card detect switches which can control whether
the VMMC1 (and VMMC2) regulators are active.
This version of the code has a debounce call that will probably be
replaced before long, when a more generic interface exists.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This adds a driver for the RTC inside the TWL4030 multi-function device.
It's a fairly basic RTC, with a wake-capable alarm.
Note that many of the pre-release Overo boards now in circulation can't
effectively use this RTC, because of a wiring error that puts its TWL
chip into "secure" mode. (As in "secure yourself against tampering".)
This isn't an issue on other OMAP3 boards now supported in mainline,
such as Beagle and Labrador.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
- Move it into a separate file; clean and streamline it
- Restructure the init code for reuse during secondary dispatch
- Support both levels (primary, secondary) of IRQ dispatch
- Use a workqueue for irq mask/unmask and trigger configuration
Code for two subchips currently share that secondary handler code.
One is the power subchip; its IRQs are now handled by this core,
courtesy of this patch. The other is the GPIO module, which will
be supported through a later patch.
There are also minor changes to the header file, mostly related
to GPIO support; nothing yet in mainline cares about those. A
few references to OMAP-specific symbols are disabled; when they
can all be removed, the TWL4030 support ceases being OMAP-specific.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This patch tidies local_init() in preparation for request-based dm.
No functional change.
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This patch removes the DM_WQ_FLUSH_ALL state that is unnecessary.
The dm_queue_flush(md, DM_WQ_FLUSH_ALL, NULL) in dm_suspend()
is never invoked because:
- 'goto flush_and_out' is the same as 'goto out' because
the 'goto flush_and_out' is called only when '!noflush'
- If r is non-zero, then the code above will invoke 'goto out'
and skip this code.
No functional change.
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Separate the region hash code from raid1 so it can be shared by forthcoming
targets. Use BUG_ON() for failed async dm_io() calls.
Signed-off-by: Heinz Mauelshagen <hjm@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
When a bio gets split, mark its fragments with the BIO_CLONED flag.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Remove waitqueue no longer needed with the async crypto interface.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
When writing io, dm-crypt has to allocate a new cloned bio
and encrypt the data into newly-allocated pages attached to this bio.
In rare cases, because of hw restrictions (e.g. physical segment limit)
or memory pressure, sometimes more than one cloned bio has to be used,
each processing a different fragment of the original.
Currently there is one waitqueue which waits for one fragment to finish
and continues processing the next fragment.
But when using asynchronous crypto this doesn't work, because several
fragments may be processed asynchronously or in parallel and there is
only one crypt context that cannot be shared between the bio fragments.
The result may be corruption of the data contained in the encrypted bio.
The patch fixes this by allocating new dm_crypt_io structs (with new
crypto contexts) and running them independently.
The fragments contains a pointer to the base dm_crypt_io struct to
handle reference counting, so the base one is properly deallocated
after all the fragments are finished.
In a low memory situation, this only uses one additional object from the
mempool. If the mempool is empty, the next allocation simple waits for
previous fragments to complete.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Prepare local sector variable (offset) for later patch.
Do not update io->sector for still-running I/O.
No functional change.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Change #include "dm.h" to #include <linux/device-mapper.h> in all targets.
Targets should not need direct access to internal DM structures.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Move array_too_big to include/linux/device-mapper.h because it is
used by targets.
Remove the test from dm-raid1 as the number of mirror legs is limited
such that it can never fail. (Even for stripes it seems rather
unlikely.)
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
We must zero the next chunk on disk *before* writing out the current chunk, not
after. Otherwise if the machine crashes at the wrong time, the "end of metadata"
marker may be missing.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: stable@kernel.org
Use a separate buffer for writing zeroes to the on-disk snapshot
exception store, make the updating of ps->current_area explicit and
refactor the code in preparation for the fix in the next patch.
No functional change.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@kernel.org
The last_percent field is unused - remove it.
(It dates from when events were triggered as each X% filled up.)
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Fix a race condition with primary_pe ref_count handling.
put_pending_exception runs under dm_snapshot->lock, it does atomic_dec_and_test
on primary_pe->ref_count, and later does atomic_read primary_pe->ref_count.
__origin_write does atomic_dec_and_test on primary_pe->ref_count without holding
dm_snapshot->lock.
This opens the following race condition:
Assume two CPUs, CPU1 is executing put_pending_exception (and holding
dm_snapshot->lock). CPU2 is executing __origin_write in parallel.
primary_pe->ref_count == 2.
CPU1:
if (primary_pe && atomic_dec_and_test(&primary_pe->ref_count))
origin_bios = bio_list_get(&primary_pe->origin_bios);
... decrements primary_pe->ref_count to 1. Doesn't load origin_bios
CPU2:
if (first && atomic_dec_and_test(&primary_pe->ref_count)) {
flush_bios(bio_list_get(&primary_pe->origin_bios));
free_pending_exception(primary_pe);
/* If we got here, pe_queue is necessarily empty. */
return r;
}
... decrements primary_pe->ref_count to 0, submits pending bios, frees
primary_pe.
CPU1:
if (!primary_pe || primary_pe != pe)
free_pending_exception(pe);
... this has no effect.
if (primary_pe && !atomic_read(&primary_pe->ref_count))
free_pending_exception(primary_pe);
... sees ref_count == 0 (written by CPU 2), does double free !!
This bug can happen only if someone is simultaneously writing to both the
origin and the snapshot.
If someone is writing only to the origin, __origin_write will submit kcopyd
request after it decrements primary_pe->ref_count (so it can't happen that the
finished copy races with primary_pe->ref_count decrementation).
If someone is writing only to the snapshot, __origin_write isn't invoked at all
and the race can't happen.
The race happens when someone writes to the snapshot --- this creates
pending_exception with primary_pe == NULL and starts copying. Then, someone
writes to the same chunk in the snapshot, and __origin_write races with
termination of already submitted request in pending_complete (that calls
put_pending_exception).
This race may be reason for bugs:
http://bugzilla.kernel.org/show_bug.cgi?id=11636https://bugzilla.redhat.com/show_bug.cgi?id=465825
The patch fixes the code to make sure that:
1. If atomic_dec_and_test(&primary_pe->ref_count) returns false, the process
must no longer dereference primary_pe (because someone else may free it under
us).
2. If atomic_dec_and_test(&primary_pe->ref_count) returns true, the process
is responsible for freeing primary_pe.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: stable@kernel.org
Write throughput to LVM snapshot origin volume is an order
of magnitude slower than those to LV without snapshots or
snapshot target volumes, especially in the case of sequential
writes with O_SYNC on.
The following patch originally written by Kevin Jamieson and
Jan Blunck and slightly modified for the current RCs by myself
tries to improve the performance by modifying the behaviour
of kcopyd, so that it pushes back an I/O job to the head of
the job queue instead of the tail as process_jobs() currently
does when it has to wait for free pages. This way, write
requests aren't shuffled to cause extra seeks.
I tested the patch against 2.6.27-rc5 and got the following results.
The test is a dd command writing to snapshot origin followed by fsync
to the file just created/updated. A couple of filesystem benchmarks
gave me similar results in case of sequential writes, while random
writes didn't suffer much.
dd if=/dev/zero of=<somewhere on snapshot origin> bs=4096 count=...
[conv=notrunc when updating]
1) linux 2.6.27-rc5 without the patch, write to snapshot origin,
average throughput (MB/s)
10M 100M 1000M
create,dd 511.46 610.72 11.81
create,dd+fsync 7.10 6.77 8.13
update,dd 431.63 917.41 12.75
update,dd+fsync 7.79 7.43 8.12
compared with write throughput to LV without any snapshots,
all dd+fsync and 1000 MiB writes perform very poorly.
10M 100M 1000M
create,dd 555.03 608.98 123.29
create,dd+fsync 114.27 72.78 76.65
update,dd 152.34 1267.27 124.04
update,dd+fsync 130.56 77.81 77.84
2) linux 2.6.27-rc5 with the patch, write to snapshot origin,
average throughput (MB/s)
10M 100M 1000M
create,dd 537.06 589.44 46.21
create,dd+fsync 31.63 29.19 29.23
update,dd 487.59 897.65 37.76
update,dd+fsync 34.12 30.07 26.85
Although still not on par with plain LV performance -
cannot be avoided because it's copy on write anyway -
this simple patch successfully improves throughtput
of dd+fsync while not affecting the rest.
Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Kazuo Ito <ito.kazuo@oss.ntt.co.jp>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: stable@kernel.org
This creates a self contained frontend de-allocator
for the instances where an adapter has not been
registered yet frontend de-allocation may
be required.
Signed-off-by: Darron Broad <darron@kewl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The multifrontend changes on cx88 assumed that all boards that use cx88-mpeg
supports DVB. This is not true. There also a few analog-only boards based on
Blackboard design that also uses cx88-mpeg. For those boards, there's no need
to allocate dvb frontends.
This patch fixes videobuf allocation for those devices.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Initial fix for when analogue only is selected
for compilation (ie, !CX88_DVB)
Signed-off-by: Darron Broad <darron@kewl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
inode is never used on video_ioctl2. Remove it and rename the function to
__video_ioctl2. This allows its usage directly as a callback at
fops.unlocked_ioctl.
Since we still need a callback with inode to be used with fops.ioctl,
this patch adds video_ioctl2() that is just a call to __video_ioctl2().
Also, this patch adds some comments about video_ioctl2 and __video_ioctl2
usage at v4l2-ioctl.h.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The inode parameter at v4l_compat_translate_ioctl() were just passed over several
places just to keep compatible with fops.ioctl. However, it weren't used anywere.
This patch gets hid of this unused parameter.
Cc: Laurent Pinchart <laurent.pinchart@skynet.be>
Cc: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
When using FBIOBLANK, FB_BLANK_POWERDOWN will now switch off the video output.
Since some televisions turn themselves off after a while with no signal, this
is the closest we can get to power-saving.
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The kernel number of a v4l2 node (e.g. videoX, radioX or vbiX) is now
independent of the minor number. So instead of using the minor field
of the video_device struct one has to use the num field: this always
contains the kernel number of the device node.
I forgot about this when I did the v4l2 core change, so this patch
converts all drivers that use it in one go. Luckily the change is
trivial.
Cc: michael@mihu.de
Cc: mchehab@infradead.org
Cc: corbet@lwn.net
Cc: luca.risolia@studio.unibo.it
Cc: isely@pobox.com
Cc: pe1rxq@amsat.org
Cc: royale@zerezo.com
Cc: mkrufky@linuxtv.org
Cc: stoth@linuxtv.org
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
When loading ivtv the TV-out of the PVR-350 will flash green since the
saa712x is activated before the MPEG decoder has been initialized.
Deactivate the saa712x until the MPEG decoder has been initialized.
Signed-off-by: Martin Dauskardt <martin.dauskardt@gmx.de>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Based on an older patch from Sakari Ailus.
Cc: Sakari Ailus <sakari.ailus@nokia.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Export v4l2_int_device_try_attach_all. This allows initiating the
initialisation of int if device after the drivers have been registered.
Also allow drivers to call ioctls if v4l2-int-if was compiled as
module.
Signed-off-by: Sakari Ailus <sakari.ailus@nokia.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Power down the s5h1411 demodulator when not in use (on the Pinnacle 801e, this
brings idle power from 123ma down to 84ma).
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Acked-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
If we are already at the desired modulation, there is no need to reconfigure
the demod (at a tuning time cost)
Note that this change revealed that although the datasheet says the demod
starts out in VSB-8 mode, the first tuning was failing consistently unless
we went through the work of setting the registers. So add a field to denote
this case so we always do the enable_frontend call, even if the first tuning
request is for VSB-8.
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
If you instruct the tuner to change frequencies, it can take up to 2500ms to
get a demod lock. By performing a soft reset after the tuning call (which
is consistent with how the Pinnacle 801e Windows driver behaves), you get
a demod lock inside of 300ms
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
s5h1411: Add the #define for an existing supporting I/F
Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Adding a serialmode function to read/and/or/write the register for safety.
Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This includes new bit definitions for previously unknown bits.
Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
s5h1411: Improvements to the default registers
Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add checking for frequency and printk if -1 returned.
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Replaced bus_info string from ISA to USB
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
