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* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
[CIFS] CIFS should honour umask
[CIFS] Missing flag on negprot needed for some servers to force packet signing
[CIFS] whitespace cleanup part 2
[CIFS] whitespace cleanup
[CIFS] fix mempool destroy done in wrong order in cifs error path
[CIFS] typo in previous patch
[CIFS] Fix oops on failed cifs mount (in kthread_stop)
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* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart:
[AGPGART] intel_agp: Add support for G33, Q33 and Q35 chipsets
[AGPGART] intel_agp: add support for 945GME
[AGPGART] intel_agp: add support for 965GME/GLE
[AGPGART] intel_agp: use table for device probe
[AGPGART] intel_agp: cleanup intel private data
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'linus-plus-plus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: limit post SRST nsect/lbal wait to ~100ms
libata: force PIO on IOMEGA ZIP 250 ATAPI
libata passthru: update cached device paramters
libata passthru: always enforce correct DEV bit
libata passthru: map UDMA protocols
libata passthru: support PIO multi commands
libata passthru: update protocol numbers
libata: Correct abuse of language
libata-core/sff: Fix multiple assumptions about DMA
ahci: Add MCP73/MCP77 support to AHCI driver
libata: fix hw_sata_spd_limit initialization
libata: print device model and firmware revision for ATAPI devices
libata: fix probe time irq printouts
libata: disable NCQ for HITACHI HTS541680J9SA00/SB21C7EP
remove unused variable in pata_isapnp
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
V4L/DVB (5751): Ivtv: fix ia64 printk format warnings.
V4L/DVB (5761): Fix broken b2c2 dependency on non x86 architectures
V4L/DVB (5673): Fix audio stuttering for saa711x/ivtv when in radio mode.
V4L/DVB (5736): Add V4L2_FBUF_CAP/FLAG_LOCAL/GLOBAL_INV_ALPHA
V4L/DVB (5732): Add ivtv CROPCAP support and fix ivtv S_CROP for video output.
V4L/DVB (5730): Remove unused V4L2_CAP_VIDEO_OUTPUT_POS
V4L/DVB (5720): Usbvision: fix urb allocation and submits
V4L/DVB (5716): Tda10086,tda826x: fix tuning, STR/SNR values
V4L/DVB (5675): Move big PIO accesses from the interrupt handler to a workhandler
V4L/DVB (5699): Cinergyt2: fix file release handler
V4L/DVB (5700): Saa7111: fix picture settings cache bug
V4L/DVB (5702): Fix Kconfig items to avoid linkedition errors
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* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6:
ide: Add the MCP73/77 support to PATA driver
Add the PATA controller device ID to pci_ids.h for MCP73/MCP77.
hpt366: disallow Ultra133 for HPT374
ide: generic IDE PCI driver, add another device exception
ide: HPA detect from resume
it821x: RAID mode fixes
serverworks: fix CSB6 tuning logic
serverworks: remove crappy code
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git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
mmc: don't call switch on old cards
mmc: fix broken if clause
au1xmmc: Replace C code with call to ARRAY_SIZE() macro.
mmc-atmel: remove linux/mmc/protocol.h dependencies
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* 'splice-2.6.22' of git://git.kernel.dk/data/git/linux-2.6-block:
splice: __generic_file_splice_read: fix read/truncate race
splice: __generic_file_splice_read: fix i_size_read() length checks
splice: move balance_dirty_pages_ratelimited() outside of splice actor
pipe: move pipe_inode_info structure decleration up before it's used
splice: remove do_splice_direct() symbol export
splice: move inode size check into generic_file_splice_read()
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After SRST, libata used to wait for nsect/lbal to be set to 1/1 for
the slave device. However, some ATAPI devices don't set nsect/lbal
after SRST and the wait itself isn't too useful as we're gonna wait
for !BSY right after that anyway.
Before reset-seq update, nsect/lbal wait failure used to be ignored
and caused 30sec delay during detection. After reset-seq, all
timeouts are considered error conditions making libata fail to detect
such ATAPI devices.
This patch limits nsect/lbal wait to around 100ms. This should give
acceptable behavior to such ATAPI devices while not disturbing the
heavily used code path too much.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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IOMEGA ZIP 250 ATAPI claims MWDMA0 support but fails SETXFERMODE if
asked to configure itself to MWDMA0. Force PIO.
This fixes bugzilla bug#8497.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Calvin Walton <calvin.walton@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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INIT_DEV_PARAMS and SET_MULTI_MODE change the device parameters cached
by libata. Re-read IDENTIFY DEVICE info and update the cached device
paramters when seeing these commands.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Always enforce correct DEV bit since we know which drive the command
is targeted. SAT demands to ignore the DEV bit, too.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Map the ATA passthru UDMA protocols to ATA_PROT_DMA.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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support the pass through of PIO multi commands.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Update the ATA passthru protocol numbers according to the new spec.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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The controller is not reporting an unlawful type, it is reporting an
invalid type. Illegal specifically means "prohibited by law"
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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The ata IRQ ack functions are only used when debugging. Unfortunately
almost every controller that calls them can cause crashes in some
configurations as there are missing checks for bmdma presence.
In addition ata_port_start insists of installing DMA buffers and pad
buffers for controllers regardless. The SFF controllers actually need to
make that decision dynamically at controller setup time and all need the
same helper - so we add ata_sff_port_start. Future patches will switch
the SFF drivers to use this.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Add the MCP73/MCP77 support to ahci driver.
Signed-off-by: Peer Chen <peerchen@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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hw_sata_spd_limit used to be incorrectly initialized to zero instead
of UINT_MAX if SPD is zero in SControl register. This breaks PHY
speed down. Fix it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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For ATA/CFA devices, libata prints out the device model and firmware revision.
Do the same for ATAPI devices.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Most drivers don't seem to fill out the host->irq field, resulting in the
wrong (no) irq being reported at probe time. For example, sil24 on my system:
ata1: SATA max UDMA/100 cmd 0xd00008009001f000 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 0
ata2: SATA max UDMA/100 cmd 0xd000080090021000 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 0
Since they're allocated and set up in ata_host_activate(), just save
them away there.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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HITACHI HTS541680J9SA00/SB21C7EP spuriously completes NCQ commands.
Blacklist it for NCQ.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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This patch has removed unused variable in pata_ispnp.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
ocfs2: Fix invalid assertion during write on 64k pages
ocfs2: Fix masklog breakage
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master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[CIPSO]: Fix several unaligned kernel accesses in the CIPSO engine.
[NetLabel]: consolidate the struct socket/sock handling to just struct sock
[IPV4]: Do not remove idev when addresses are cleared
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master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Handle PCI bridges without 'ranges' property.
[SPARC64]: Include <linux/rwsem.h> instead of <asm/rwsem.h>.
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6:
OHCI: Fix machine check in ohci_hub_status_data
USB: Fix up bogus bInterval values in endpoint descriptors
USB: cxacru: ignore error trying to start ADSL in atm_start
USB: cxacru: create sysfs attributes in atm_start instead of bind
USB: cxacru: add Documentation file
USB: UNUSUAL_DEV: Sync up some reported devices from Ubuntu
USB: usb gadgets avoid le{16,32}_to_cpup()
usblp: Don't let suspend to kill ->used
USB: set default y for CONFIG_USB_DEVICE_CLASS
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6:
firmware: remove orphaned Email
kobject: use the proper printk level for kobject error
Driver core: kill unused code
Driver core: keep PHYSDEV for old struct class_device
update Documentation/driver-model/platform.txt
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Prevent <linux/console_struct.h> from being included more than once,
otherwise you get a redefinition error if you happen to include
<linux/vt_kern.h> first.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This version brings a some new tests, and a host of changes to fix
false positives, of particular note:
- check for and report #if 0
- extend checking of line lengths and spacing for .pl, .sh etc
- extends the pointer type checks to multiple levels
- updates printk handling to track newlines
- adds a wrapped patch detector
- drops the leading component of the filenames
- extends switch indent handling to switch statmentes rooted in
the context
- adds foo * bar single pointer checks
This version of checkpatch.pl can be found at the following URL:
http://www.shadowen.org/~apw/public/checkpatch/checkpatch.pl-0.04
Full Changelog:
Andy Whitcroft (16):
allow checking line lengths and spacing on other source files
clean up that whitespace
sanitise the input line standardising the content of quotes
clean up pointer type * and space checks
fix up the sanitiser so it maintains the line length
apply the printk facility checks only to the first printk in a set
switch/case indent checks may anchor in the context
add a wrapped patch detector
put the #ifdef in C file checks on ice
asm volatile is acceptable
check for and report #if 0
drop the leading component of the filename as patches are -p1
use the original line when reporting operator errors
correct spelling of Joel's name
Version: 0.04
add support for struct foo * bar checks
Geert Uytterhoeven (1):
Fix checkpatch.pl name in usage template
Randy Dunlap (1):
checkpatch: produce fewer lines of output
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Joel Schopp <jschopp@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add a prefix string parameter. Callers are responsible for any string
length/alignment that they want to see in the output. I.e., callers should
pad strings to achieve alignment if they want that.
Add rowsize parameter. This is the number of raw data bytes to be printed
per line. Must be 16 or 32.
Add a groupsize parameter. This allows callers to dump values as 1-byte,
2-byte, 4-byte, or 8-byte numbers. Default is 1-byte numbers. If the
total length is not an even multiple of groupsize, 1-byte numbers are
printed.
Add an "ascii" output parameter. This causes ASCII data output following
the hex data output.
Clean up some doc examples.
Align the ASCII output on all lines that are produced by one call.
Add a new interface, print_hex_dump_bytes(), that is a shortcut to
print_hex_dump(), using default parameter values to print 16 bytes in
byte-size chunks of hex + ASCII output, using printk level KERN_DEBUG.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The UFS entry was misformatted
The NEC V850 links are all broken
The Berkshire watchdog links are all broken
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Produce one less line of output per flagged incident.
Change this:
use tabs not spaces
PATCH: /home/rddunlap/arcmsr1200014.patch4:756:
FILE: b/drivers/scsi/arcmsr/arcmsr_hba.c:1843:
+ return PCI_ERS_RESULT_NEED_RESET;$
to this:
use tabs not spaces
#756: FILE: b/drivers/scsi/arcmsr/arcmsr_hba.c:1843:
+ return PCI_ERS_RESULT_NEED_RESET;$
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch changes MAINTAINERS to reflect the new location of the reiserfs
development mailing list. The old list forwards to the new one.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We don't want to see this:
> BUG: using smp_processor_id() in preemptible [00000001] code: bash/3857
> caller is oops_begin+0xb/0x6f
>
> Call Trace:
> [<ffffffff8020ab4d>] show_trace+0x34/0x4f
> [<ffffffff8020ab7a>] dump_stack+0x12/0x17
> [<ffffffff8030d92d>] debug_smp_processor_id+0xad/0xbc
> [<ffffffff8042388f>] oops_begin+0xb/0x6f
> [<ffffffff8042520b>] do_page_fault+0x66a/0x7c0
> [<ffffffff804234bd>] error_exit+0x0/0x84
>
coming out when the kernel is trying to oops.
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We aren't sampling for holes in memory. Thus we encounter a section hole
with empty section map pointer for SPARSEMEM and OOPs for show_mem. This
issue has been seen in 2.6.21, current git and current mm. The patch below
is for mainline and mm. It was boot tested for SPARSEMEM, current VMEMMAP
of Andy's in mm ml and DISCONTIGMEM. A slightly different patch will be
posted to stable for 2.6.21.
Previous to commit f0a5a58aa812b31fd9f197c4ba48245942364eae memory_present
was called for node_start_pfn to node_end_pfn. This would cover the
hole(s) with reserved pages and valid sections. Most SPARSEMEM supported
arches do a pfn_valid check in show_mem before computing the page structure
address.
This issue was brought to my attention on IRC by Arnaldo Carvalho de Melo.
Thanks to Arnaldo for testing.
Signed-off-by: Bob Picco <bob.picco@hp.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1. New entries can be added to tsk->pi_state_list after task completed
exit_pi_state_list(). The result is memory leakage and deadlocks.
2. handle_mm_fault() is called under spinlock. The result is obvious.
3. results in self-inflicted deadlock inside glibc.
Sometimes futex_lock_pi returns -ESRCH, when it is not expected
and glibc enters to for(;;) sleep() to simulate deadlock. This problem
is quite obvious and I think the patch is right. Though it looks like
each "if" in futex_lock_pi() got some stupid special case "else if". :-)
4. sometimes futex_lock_pi() returns -EDEADLK,
when nobody has the lock. The reason is also obvious (see comment
in the patch), but correct fix is far beyond my comprehension.
I guess someone already saw this, the chunk:
if (rt_mutex_trylock(&q.pi_state->pi_mutex))
ret = 0;
is obviously from the same opera. But it does not work, because the
rtmutex is really taken at this point: wake_futex_pi() of previous
owner reassigned it to us. My fix works. But it looks very stupid.
I would think about removal of shift of ownership in wake_futex_pi()
and making all the work in context of process taking lock.
From: Thomas Gleixner <tglx@linutronix.de>
Fix 1) Avoid the tasklist lock variant of the exit race fix by adding
an additional state transition to the exit code.
This fixes also the issue, when a task with recursive segfaults
is not able to release the futexes.
Fix 2) Cleanup the lookup_pi_state() failure path and solve the -ESRCH
problem finally.
Fix 3) Solve the fixup_pi_state_owner() problem which needs to do the fixup
in the lock protected section by using the in_atomic userspace access
functions.
This removes also the ugly lock drop / unqueue inside of fixup_pi_state()
Fix 4) Fix a stale lock in the error path of futex_wake_pi()
Added some error checks for verification.
The -EDEADLK problem is solved by the rtmutex fixups.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Alexey Kuznetsov found some problems in the pi-futex code.
One of the root causes is:
When a wakeup happens, we do not to stop the chain walk so we follow a not
longer relevant locking chain.
Drop out when this happens.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Alexey Kuznetsov found some problems in the pi-futex code.
The major problem is a stale return value in rt_mutex_slowlock():
When the pi chain walk returns -EDEADLK, but the waiter was woken up during
the phases where the locks were dropped, the rtmutex could be acquired, but
due to the stale return value -EDEADLK returned to the caller.
Reset the return value in the retry path.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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sata_promise uses two different command modes - packet and TF. Packet mode
is intelligent low-overhead mode while TF is the same old taskfile
interface. As with other advanced interface (ahci/sil24),
ATA_TFLAG_POLLING has no effect in packet mode. However, PIO commands are
issued using TF interface in polling mode, so pdc_interrupt() considers
interrupts spurious if ATA_TFLAG_POLLING is set.
This is broken for polling NODATA commands because command is issued using
packet mode but the interrupt handler ignores it due to ATA_TFLAG_POLLING.
Fix pdc_qc_issue_prot() such that ATA/ATAPI NODATA commands are issued
using TF interface if ATA_TFLAG_POLLING is set.
This patch fixes detection failure introduced by polling SETXFERMODE.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Mikael Pettersson <mikpe@it.uu.se>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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__exit function is used by both init and exit routines, so it cannot
be marked __init. (from allyesconfig)
WARNING: drivers/built-in.o(.text+0x9b83cf): Section mismatch: reference to .exit.text: (between 'divasfunc_exit' and 'didd_callback')
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Karsten Keil <kkeil@suse.de>
Acked-by: Armin Schindler <armin@melware.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Include linux/kernel.h wherever simple_strtoul is used. This kills a
compile warning in stderr_console.c and potential ones in the other files.
This also fixes a bunch of style violations in exitcode.c.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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do not return 0 in one case and return proper values in other 2.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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this causes oops, because pci probe function calls tty_register_device for
each device found. Thanks to Ingo.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: "Ingo Korb" <ingo@akana.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Since it's not neccesary to have MAX_PANELS on the card, don't fail to let
users use this card even in this case. Stop the testing for loop instead.
Thanks to Ingo.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: "Ingo Korb" <ingo@akana.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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into the appropriate #ifdef.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Force KERNEL_STACK_ORDER to be at least 1 on UML/x86_64, to avoid overflows.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Instead of returning the smallest available object return ZERO_SIZE_PTR.
A ZERO_SIZE_PTR can be legitimately used as an object pointer as long as it
is not deferenced. The dereference of ZERO_SIZE_PTR causes a distinctive
fault. kfree can handle a ZERO_SIZE_PTR in the same way as NULL.
This enables functions to use zero sized object. e.g. n = number of objects.
objects = kmalloc(n * sizeof(object));
for (i = 0; i < n; i++)
objects[i].x = y;
kfree(objects);
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix various bits of obviously-busted code which we're not happening to
compile, due to ifdefs.
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Andi Kleen <ak@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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cache_free_alien must be called regardless if we use alien caches or not.
cache_free_alien() will do the right thing if there are no alien caches
available.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Pekka J Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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