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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (23 commits)
genirq: Expand generic show_interrupts()
gpio: Fold irq_set_chip/irq_set_handler to irq_set_chip_and_handler
gpio: Cleanup genirq namespace
arm: ep93xx: Add basic interrupt info
arm/gpio: Remove three copies of broken and racy debug code
xtensa: Use generic show_interrupts()
xtensa: Convert genirq namespace
xtensa: Use generic IRQ Kconfig and set GENERIC_HARDIRQS_NO_DEPRECATED
xtensa: Convert s6000 gpio irq_chip to new functions
xtensa: Convert main irq_chip to new functions
um: Use generic show_interrupts()
um: Convert genirq namespace
m32r: Use generic show_interrupts()
m32r: Convert genirq namespace
h8300: Use generic show_interrupts()
h8300: Convert genirq namespace
avr32: Cleanup eic_set_irq_type()
avr32: Use generic show_interrupts()
avr: Cleanup genirq namespace
avr32: Use generic IRQ config, enable GENERIC_HARDIRQS_NO_DEPRECATED
...
Fix up trivial conflict in drivers/gpio/timbgpio.c
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For the time being can we fix up the ep93xx gpio code with the amended
patch below. It keeps the information that the pin is also configured
as an interrupt and cleans the code up a bit.
[ tglx: Rebased it on the removal patch ]
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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gpiolib plus two gpio implementations in arm fiddle in the guts of
irq_desc in a racy and buggy way. Remove the stuff. I already told the
gpio folks that we can provide that information in a proper way if
necessary.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
LKML-Reference: <20110324212508.931638262@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Scripted with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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All chips converted.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Chris Zankel <chris@zankel.net>
LKML-Reference: <20110206211137.849317253@linutronix.de>
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Also use proper wrappers for irq_desc access.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Chris Zankel <chris@zankel.net>
LKML-Reference: <20110206211137.750284615@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Chris Zankel <chris@zankel.net>
LKML-Reference: <20110206211137.653005586@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Scripted with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Scripted with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Scripted with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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No need to fiddle in irq_desc. The trigger mask can be written back
into irq_data. Return IRQ_SET_MASK_OK_NOCOPY, so the generic code wont
overwrite it again.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
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Scripted conversion to new function names with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
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Use the generic Kconfig for interrupts and enable
GENERIC_HARDIRQS_NO_DEPRECATED. All conversions done.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
LKML-Reference: <20110206163009.289833604@linutronix.de>
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Also replace the open coded handler call with the proper wrapper.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
LKML-Reference: <20110206163009.190112353@linutronix.de>
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Also replace the open coded handler call with the proper wrapper.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
LKML-Reference: <20110206163009.096308633@linutronix.de>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
LKML-Reference: <20110206163008.996220791@linutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf, x86: Complain louder about BIOSen corrupting CPU/PMU state and continue
perf, x86: P4 PMU - Read proper MSR register to catch unflagged overflows
perf symbols: Look at .dynsym again if .symtab not found
perf build-id: Add quirk to deal with perf.data file format breakage
perf session: Pass evsel in event_ops->sample()
perf: Better fit max unprivileged mlock pages for tools needs
perf_events: Fix stale ->cgrp pointer in update_cgrp_time_from_cpuctx()
perf top: Fix uninitialized 'counter' variable
tracing: Fix set_ftrace_filter probe function display
perf, x86: Fix Intel fixed counters base initialization
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Eric Dumazet reported that hardware PMU events do not work on his
system, due to the BIOS corrupting PMU state:
Performance Events: PEBS fmt0+, Core2 events, Broken BIOS detected, using software events only.
[Firmware Bug]: the BIOS has corrupted hw-PMU resources (MSR 186 is 43003c)
Linus suggested that we continue in the face of such BIOS-induced CPU
state corruption:
http://lkml.org/lkml/2011/3/24/608
Such BIOSes will have to be fixed - Linux developers rely on a working and
fully capable PMU and the BIOS interfering with the CPU's PMU state is simply
not acceptable.
So this patch changes perf to continue when it detects such BIOS
interaction, some hardware events may be unreliable due to the BIOS
writing and re-writing them - there's not much the kernel can do
about that but to detect the corruption and report it.
Reported-and-tested-by: Eric Dumazet <eric.dumazet@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The read of a proper MSR register was missed and instead of
counter the configration register was tested (it has
ARCH_P4_UNFLAGGED_BIT always cleared) leading to unknown NMI
hitting the system. As result the user may obtain "Dazed and
confused, but trying to continue" message. Fix it by reading a
proper MSR register.
When an NMI happens on a P4, the perf nmi handler checks the
configuration register to see if the overflow bit is set or not
before taking appropriate action. Unfortunately, various P4
machines had a broken overflow bit, so a backup mechanism was
implemented. This mechanism checked to see if the counter
rolled over or not.
A previous commit that implemented this backup mechanism was
broken. Instead of reading the counter register, it used the
configuration register to determine if the counter rolled over
or not. Reading that bit would give incorrect results.
This would lead to 'Dazed and confused' messages for the end
user when using the perf tool (or if the nmi watchdog is
running).
The fix is to read the counter register before determining if
the counter rolled over or not.
Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Lin Ming <ming.m.lin@intel.com>
LKML-Reference: <4D8BAB49.3080701@openvz.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The following patch solves the problems introduced by Robert's
commit 41bf498 and reported by Arun Sharma. This commit gets rid
of the base + index notation for reading and writing PMU msrs.
The problem is that for fixed counters, the new calculation for
the base did not take into account the fixed counter indexes,
thus all fixed counters were read/written from fixed counter 0.
Although all fixed counters share the same config MSR, they each
have their own counter register.
Without:
$ task -e unhalted_core_cycles -e instructions_retired -e baclears noploop 1 noploop for 1 seconds
242202299 unhalted_core_cycles (0.00% scaling, ena=1000790892, run=1000790892)
2389685946 instructions_retired (0.00% scaling, ena=1000790892, run=1000790892)
49473 baclears (0.00% scaling, ena=1000790892, run=1000790892)
With:
$ task -e unhalted_core_cycles -e instructions_retired -e baclears noploop 1 noploop for 1 seconds
2392703238 unhalted_core_cycles (0.00% scaling, ena=1000840809, run=1000840809)
2389793744 instructions_retired (0.00% scaling, ena=1000840809, run=1000840809)
47863 baclears (0.00% scaling, ena=1000840809, run=1000840809)
Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: peterz@infradead.org
Cc: ming.m.lin@intel.com
Cc: robert.richter@amd.com
Cc: asharma@fb.com
Cc: perfmon2-devel@lists.sf.net
LKML-Reference: <20110319172005.GB4978@quad>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
futex: Fix WARN_ON() test for UP
WARN_ON_SMP(): Allow use in if() statements on UP
x86, dumpstack: Use %pB format specifier for stack trace
vsprintf: Introduce %pB format specifier
lockdep: Remove unused 'factor' variable from lockdep_stats_show()
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Improve noreturn function entries in call traces:
Before:
Call Trace:
[<ffffffff812a8502>] panic+0x8c/0x18d
[<ffffffffa000012a>] deep01+0x0/0x38 [test_panic] <--- bad
[<ffffffff81104666>] proc_file_write+0x73/0x8d
[<ffffffff811000b3>] proc_reg_write+0x8d/0xac
[<ffffffff810c7d32>] vfs_write+0xa1/0xc5
[<ffffffff810c7e0f>] sys_write+0x45/0x6c
[<ffffffff8f02943b>] system_call_fastpath+0x16/0x1b
After:
Call Trace:
[<ffffffff812bce69>] panic+0x8c/0x18d
[<ffffffffa000012a>] panic_write+0x20/0x20 [test_panic] <--- good
[<ffffffff81115fab>] proc_file_write+0x73/0x8d
[<ffffffff81111a5f>] proc_reg_write+0x8d/0xac
[<ffffffff810d90ee>] vfs_write+0xa1/0xc5
[<ffffffff810d91cb>] sys_write+0x45/0x6c
[<ffffffff812c07fb>] system_call_fastpath+0x16/0x1b
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1300934550-21394-2-git-send-email-namhyung@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: DT: Cleanup namespace and call irq_set_irq_type() unconditional
x86: DT: Fix return condition in irq_create_of_mapping()
x86, mpparse: Move check_slot into CONFIG_X86_IO_APIC context
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That call escaped the name space cleanup. Fix it up.
We really want to call there. The chip might have changed since the
irq was setup initially. So let the core code and the chip decide what
to do. The status is just an unreliable snapshot.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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The xlate() function returns 0 or a negative error code. Returning the
error code blindly will be seen as an huge irq number by the calling
function because irq_create_of_mapping() returns an unsigned value.
Return 0 (NO_IRQ) as required.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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When CONFIG_X86_MPPARSE=y and CONFIG_X86_IO_APIC=n, then we get
the following warning:
arch/x86/kernel/mpparse.c:723: warning: 'check_slot' defined but not used
So, put check_slot into CONFIG_X86_IO_APIC context. Its only
called from CONFIG_X86_IO_APIC=y context.
Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
LKML-Reference: <AANLkTinsUfGc=NG_GeH_B+zFVu+DXJzZbJKdQLscqfuH@mail.gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: merge m68k and m68knommu arch directories
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There is a lot of common code that could be shared between the m68k
and m68knommu arch branches. It makes sense to merge the two branches
into a single directory structure so that we can more easily share
that common code.
This is a brute force merge, based on a script from Stephen King
<sfking@fdwdc.com>, which was originally written by Arnd Bergmann
<arnd@arndb.de>.
> The script was inspired by the script Sam Ravnborg used to merge the
> includes from m68knommu. For those files common to both arches but
> differing in content, the m68k version of the file is renamed to
> <file>_mm.<ext> and the m68knommu version of the file is moved into the
> corresponding m68k directory and renamed <file>_no.<ext> and a small
> wrapper file <file>.<ext> is used to select between the two version. Files
> that are common to both but don't differ are removed from the m68knommu
> tree and files and directories that are unique to the m68knommu tree are
> moved to the m68k tree. Finally, the arch/m68knommu tree is removed.
>
> To select between the the versions of the files, the wrapper uses
>
> #ifdef CONFIG_MMU
> #include <file>_mm.<ext>
> #else
> #include <file>_no.<ext>
> #endif
On top of this file merge I have done a simplistic merge of m68k and
m68knommu Kconfig, which primarily attempts to keep existing options and
menus in place. Other than a handful of options being moved it produces
identical .config outputs on m68k and m68knommu targets I tested it on.
With this in place there is now quite a bit of scope for merge cleanups
in future patches.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc32: Fix multiple RTC detections on SUN4D
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During the preparation for testing the recent changes made to the SUN4D
specific code in the kernel by Sam Ravnborg the following was discovered:
Since the removal of of_platform_bus_type (commit: eca3930163ba8884060ce9d9ff5ef0d9b7c7b00f )
multiboard SUN4Ds have not been able to boot. The kernel crashes due to a
zero-pointer error encountered when registering multiple M48T59 RTCs
(There is one on each board).
A patch for the was previously submitted, but the problem was not a
serious at that time, as it would only generate warnings. Now the kernel
will crash and stop executing before the serial console has been started.
(Crash output can be viewed by using the -p boot flag)
Signed-off-by: Kjetil Oftedal <oftedal@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] cmpxchg: implement cmpxchg64()
[S390] xchg/cmpxchg: move to own header file
[S390] ccwgroup_driver: remove duplicate members
[S390] ccw_bus_type: make it static
[S390] ccw_driver: remove duplicate members
[S390] qdio: prevent handling of buffers if count is zero
[S390] setup: register bss section as resource
[S390] setup: simplify setup_resources()
[S390] wire up sys_syncfs
[S390] wire up sys_clock_adjtime
[S390] wire up sys_open_by_handle_at
[S390] wire up sys_name_to_handle_at
[S390] oprofile: disable hw sampling for CONFIG_32BIT
[S390] early: limit savesys cmd string handling
[S390] early: Fix possible overlapping data buffer
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We have a cmpxchg64_local() implementation but strange enough the
SMP capable variant cmpxchg64() is missing. So implement it.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Move xchg() and cmpxchg() functions to own header file like some
other architectures have done.
With this we make sure that system.h now really looks like a place
where everything is gathered that doesn't fit anywhere else.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Remove the owner and name members of struct
ccwgroup_driver and convert all drivers to store
this data in the embedded struct device_driver.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Remove the owner and name members of struct
ccw_driver and convert all drivers to store
this data in the embedded struct device_driver.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Make kernel bss section visible via /proc/iomem like on other
architectures.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Simplify setup_resources() and make it more generic. That way it is
easier to add additional resources.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Doesn't work and build for CONFIG_32BIT. So disable it.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Use snprintf() here as well so we won't have to deal with this again.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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This patch fixed bugzilla #12965:
https://bugzilla.kernel.org/show_bug.cgi?id=12965
The original code contains some inproper use of sprintf
function where a buffer is used both as input string
as well as output string. It should remember the written
bytes in the previous and use that as the offset for
later writing. Also replace sprintf with snprintf.
Signed-off-by: Chen Liu <chenliu@asset.uwaterloo.ca>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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The jz4740 nand driver now requires that the ecc offsets are set.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2058/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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