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309625 commits

Author SHA1 Message Date
John W. Linville a0f68763e1 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2012-05-30 10:32:16 -04:00
Ingo Molnar 403e1c5b74 Merge branch 'x86/mce' into x86/urgent
Merge in these fixlets.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-30 14:12:06 +02:00
Joerg Roedel 28f8571e1e Merge branches 'iommu/fixes', 'dma-debug', 'arm/omap', 'arm/tegra', 'core' and 'x86/amd' into next 2012-05-30 12:41:29 +02:00
Shuah Khan c099cf1731 Documentation: kernel-parameters.txt Add amd_iommu_dump
Add amd_iommu_dump to kernel-parameters.txt

Signed-off-by: Shuah Khan <shuahkhan@gmail.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-05-30 12:39:27 +02:00
John Dykstra fa83523f45 x86/mm/pat: Improve scaling of pat_pagerange_is_ram()
Function pat_pagerange_is_ram() scales poorly to large address
ranges, because it probes the resource tree for each page.

On a 2.6 GHz Opteron, this function consumes 34 ms for a 1 GB range.

It is called twice during untrack_pfn_vma(), slowing process
cleanup and handicapping the OOM killer.

This replacement consumes less than 1ms, under the same conditions.

Signed-off-by: John Dykstra <jdykstra@cray.com> on behalf of Cray Inc.
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1337980366.1979.6.camel@redwood
[ Small stylistic cleanups and renames ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-30 10:57:11 +02:00
Mark Brown 14674e7011 i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING
Since there are uses for I2C_M_NOSTART which are much more sensible and
standard than most of the protocol mangling functionality (the main one
being gather writes to devices where something like a register address
needs to be inserted before a block of data) create a new I2C_FUNC_NOSTART
for this feature and update all the users to use it.

Also strengthen the disrecommendation of the protocol mangling while we're
at it.

In the case of regmap-i2c we remove the requirement for mangling as
I2C_M_NOSTART is the only mangling feature which is being used.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-05-30 10:55:34 +02:00
Jean Delvare 838bfa6049 i2c-dev: Add support for I2C_M_RECV_LEN
As the bus driver side implementation of I2C_M_RECV_LEN is heavily
tied to SMBus, we can't support received length over 32 bytes, but
let's at least support that.

In practice, the caller will have to setup a buffer large enough to
cover the case where received length byte has value 32, so minimum
32 + 1 = 33 bytes, possibly more if there is a fixed number of bytes
added for the specific slave (for example a checksum.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Douglas Gilbert <dgilbert@interlog.com>
2012-05-30 10:55:34 +02:00
Heiko Carstens 491af9903b s390/uaccess: fix access_ok compile warnings
On s390 access_ok is a macro which discards all parameters and always
returns 1. This can result in compile warnings which warn about unused
variables like this:

fs/read_write.c: In function 'rw_copy_check_uvector':
fs/read_write.c:684:16: warning: unused variable 'buf' [-Wunused-variable]

Fix this by adding a __range_ok() function which consumes all parameters
but still always returns 1.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-30 10:01:11 +02:00
Heiko Carstens 2e30db9522 s390/cmpxchg: select HAVE_CMPXCHG_LOCAL option
Now that hopefully all cmpxchg/xchg bugs have been fixed select
HAVE_CMPXCHG_LOCAL option which uncovered a couple of bugs on s390.

The only call site which is affected seems to be within mm/vmstat.c.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-30 09:07:59 +02:00
Heiko Carstens 1896d256d3 s390/cmpxchg: fix sign extension bugs
For 1 and 2 byte operands for xchg and cmpxchg the old and new values
get or'ed into the larger 4 byte old value before the compare and swap
instruction gets executed. This is done without using the proper byte
mask before or'ing the values.
If the caller passed in negative old or new values these got sign
extended by the caller. Which in turn means that either the old value
never matches, or, even worse, unrelated bytes would be changed in memory.

Luckily there don't seem to be any callers around yet, since that would
have resulted in the specification exception fixed in an earlies patch.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-30 09:07:58 +02:00
Heiko Carstens bf3db85311 s390/cmpxchg: fix 1 and 2 byte memory accesses
When accessing a 1 or 2 byte memory operand we cannot use the
passed address since the compare and swap instruction only works
for 4 byte aligned memory operands.
Hence we calculate an aligned address so that compare and swap works
correctly. However we don't pass the calculated address to the inline
assembly. This results in incorrect memory accesses and in a
specification exception if used on non 4 byte aligned memory operands.

Since this didn't happen until now, there don't seem to be
too many users of cmpxchg on unaligned addresses.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-30 09:07:57 +02:00
Heiko Carstens 6b894a409e s390/cmpxchg: fix compile warnings specific to s390
The cmpxchg macros and functions are a bit different than on other
architectures. In particular the macros do not store the return
value of a __cmpxchg function call in a variable before returning the
value.

This causes compile warnings that only occur on s390 like this one:

net/ipv4/af_inet.c: In function 'build_ehash_secret':
net/ipv4/af_inet.c:241:2: warning: value computed is not used [-Wunused-value]

To get rid of these warnings use the same construct that we already use
for the xchg macro, which was introduced for the same reason.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-30 09:07:56 +02:00
Heiko Carstens 0c44ca71f5 s390/cmpxchg: add missing memory barrier to cmpxchg64
All cmpxchg functions imply a memory barrier.
cmpxch64 did not have one for 31 bit code, so add it.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-30 09:07:55 +02:00
Heiko Carstens b9e3f776c8 s390/cpu: remove cpu "capabilities" sysfs attribute
It has been a big mistage to add the capabilities attribute to the
cpus in sysfs:
First the attribute only contains the cpu capability of primary cpus,
which however is not necessarily (or better: unlikely) the type of
cpu the kernel runs on, which is typically an IFL.
In addition all information that is necessary is available in
/proc/sysinfo already. So this attribute partially duplicated
informations.
So programs should look into the sysinfo file to retrieve all
informations they are interested in.

Since with this kernel release also the powersavings cpu attributes
are removed this seems to be a good opportunity to remove another
broken interface.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-30 09:07:30 +02:00
Michael Holzheu 061da3dfb2 s390/kernel: Fix smp_call_ipl_cpu() for offline CPUs
If the IPL CPU is offline, currently the pcpu_delegate() function
used by smp_call_ipl_cpu() does not work because pcpu_delegate()
modifies the lowcore of the target CPU. In case of an offline
IPL CPU currently the prefix register is zero but pcpu->lowcore
still points to the old prefix page. Therefore the lowcore changes
done by pcpu_delegate() have no effect.

With this fix pcpu_delegate() now uses memcpy_absolute() and therefore
also prepares the absolute zero lowcore if the target CPU has prefix
register zero.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-30 09:04:51 +02:00
Michael Holzheu 73bf463efa s390/kernel: Introduce memcpy_absolute() function
This patch introduces the new function memcpy_absolute() that allows to
copy memory using absolute addressing. This means that the prefix swap
does not apply when this function is used.

With this patch also all s390 kernel code that accesses absolute zero
now uses the new memcpy_absolute() function. The old and less generic
copy_to_absolute_zero() function is removed.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-05-30 09:04:49 +02:00
Ingo Molnar 59cd358a7a Annotation improvements for perf/core
. Make the annotatation toggles (hide_src_code, jump_arrows, use_offset, etc)
   global so that navigation doesn't resets them on new annotations.
 
 . Introduce an '[annotate]' config file section to allow permanent changes
   to the annotate browser defaults.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Annotation fixes/improvements from Arnaldo Carvalho de Melo:

. Make the annotatation toggles (hide_src_code, jump_arrows, use_offset, etc)
  global so that navigation doesn't resets them on new annotations.

. Introduce an '[annotate]' config file section to allow permanent changes
  to the annotate browser defaults.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-30 09:02:00 +02:00
Ingo Molnar 55b78e34b1 Fixes for perf/urgent
. Fix fallback to --stdio when TUI not supported, from Namhyung Kim.
 
 . Use right cast for pointers/long in libtraceevent, from Namhyung Kim.
 
 . Be consistent on using the right error reporting interface for fatal errors,
   from Namhyung Kim.
 
 . Fix fallback to --stdio when TUI not supported, from Namhyung Kim.
 
 . Use the right index in asm only view in the annotate browser.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Fixes for perf/urgent from Arnaldo Carvalho de Melo:

 * Fix fallback to --stdio when TUI not supported, from Namhyung Kim.

 * Use right cast for pointers/long in libtraceevent, from Namhyung Kim.

 * Be consistent on using the right error reporting interface for fatal errors,
   from Namhyung Kim.

 * Fix fallback to --stdio when TUI not supported, from Namhyung Kim.

 * Use the right index in asm only view in the annotate browser.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-30 09:01:40 +02:00
Randy Dunlap 4b98b32aef watchdog: iTCO_wdt.c: fix printk format warnings
Fix printk format warnings:

drivers/watchdog/iTCO_wdt.c:577:3: warning: format '%04llx' expects type 'long long unsigned int', but argument 2 has type 'resource_size_t'
drivers/watchdog/iTCO_wdt.c:594:3: warning: format '%04llx' expects type 'long long unsigned int', but argument 2 has type 'resource_size_t'
drivers/watchdog/iTCO_wdt.c:600:2: warning: format '%04llx' expects type 'long long unsigned int', but argument 4 has type 'resource_size_t'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 08:16:48 +02:00
Viresh Kumar d9df0ef1eb watchdog: sp805_wdt: Add clk_{un}prepare support
clk_{un}prepare() routines are required for required on some platforms to run
part of clk enable/disable() routines from contexts that can schedule.

This patch adds support for these routines in sp805 driver.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:56:44 +02:00
Viresh Kumar 4a516539fa watchdog: sp805_wdt: convert to watchdog core
This patch converts existing sp805 watchdog driver to use already in place
common infrastructure present in watchdog core. With this lot of code goes away.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:56:41 +02:00
Hans de Goede 2d8c7ff52c hwmon/sch56xx: Depend on watchdog for watchdog core functions
Since the watchdog code in sch56xx-common now uses the watchdog core, the
Kconfig entires for the sch5627 and sch5636 should depend on WATCHDOG
being set. Also select the watchdog core when we select one of the drivers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:56:20 +02:00
Dan Carpenter bb644913a7 watchdog: sch56xx-common: set correct bits in register()
WDOG_NO_WAY_OUT (3) and WDOG_ACTIVE (0) are the bit numbers, not a mask.
So "data->wddev.status |= WDOG_ACTIVE;" was intended to set bit zero but
it is a no-op.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:56:17 +02:00
Ashish Jangam 664a0d7862 Watchdog: DA9052/53 PMIC watchdog support
This driver adds support for the watchdog functionality provided by
the Dialog Semiconductor DA9052 PMIC chip.

Tested on samsung smdkv6410 and i.mx53 QS boards.

Signed-off-by: Anthony Olech <Anthony.Olech@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:56:12 +02:00
Hans de Goede 54e2dc9341 watchdog: sch56xx-common: Add proper ref-counting of watchdog data
This fixes referencing free-ed memory in the corner case where /dev/watchdog
is open when the platform driver gets unbound from the platform device.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:55:46 +02:00
Hans de Goede 85a2e40cb5 watchdog: sch56xx: Remove unnecessary checks for register changes
Since the watchdog core keeps track of the watchdog's active state, start/stop
will never get called when no changes are necessary. So we can remove the
check for the output_enable register changing before writing it (which is
an expensive operation).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:55:41 +02:00
Hans de Goede fb551405c0 watchdog: sch56xx: Use watchdog core
Convert sch56xx drivers to the generic watchdog core.

Note this patch depends on the "watchdog: Add multiple device support" patch
from Alan Cox.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:55:38 +02:00
Hans de Goede e907df3272 watchdog: Add support for dynamically allocated watchdog_device structs
If a driver's watchdog_device struct is part of a dynamically allocated
struct (which it often will be), merely locking the module is not enough,
even with a drivers module locked, the driver can be unbound from the device,
examples:
1) The root user can unbind it through sysfd
2) The i2c bus master driver being unloaded for an i2c watchdog

I will gladly admit that these are corner cases, but we still need to handle
them correctly.

The fix for this consists of 2 parts:
1) Add ref / unref operations, so that the driver can refcount the struct
   holding the watchdog_device struct and delay freeing it until any
   open filehandles referring to it are closed
2) Most driver operations will do IO on the device and the driver should not
   do any IO on the device after it has been unbound. Rather then letting each
   driver deal with this internally, it is better to ensure at the watchdog
   core level that no operations (other then unref) will get called after
   the driver has called watchdog_unregister_device(). This actually is the
   bulk of this patch.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:55:31 +02:00
Hans de Goede f4e9c82f64 watchdog: Add Locking support
This patch fixes some potential multithreading issues, despite only
allowing one process to open the /dev/watchdog device, we can still get
called multiple times at the same time, since a program could be using thread,
or could share the fd after a fork.

This causes 2 potential problems:
1) watchdog_start / open do an unlocked test_n_set / test_n_clear,
   if these 2 race, the watchdog could be stopped while the active
   bit indicates it is running or visa versa.

2) Most watchdog_dev drivers probably assume that only one
   watchdog-op will get called at a time, this is not necessary
   true atm.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:55:23 +02:00
Hans de Goede 7a87982420 watchdog: watchdog_dev: Rewrite wrapper code
Rewrite and extend the wrapper code so that we can easily introduce
locking (this to be able to prevent potential multithreading issues).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:55:17 +02:00
Alan Cox 3dfd6218da watchdog: use dev_ functions
While they are registered all our watchdogs now have a valid device object
so we can in turn use that to report problems nicely.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:57 +02:00
Alan Cox d6b469d915 watchdog: create all the proper device files
Create the watchdog class and it's associated devices.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:46 +02:00
Alan Cox 2bbeed016d watchdog: Add a flag to indicate the watchdog doesn't reboot things
Some watchdogs merely trigger external alarms and controls. In a managed
environment this is very useful but we want drivers to be able to figure
out which is which now multiple dogs can be loaded. Thus add an ALARMONLY
feature flag.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:40 +02:00
Alan Cox 45f5fed30a watchdog: Add multiple device support
We keep the old /dev/watchdog interface file for the first watchdog via
miscdev. This is basically a cut and paste of the relevant interface code
from the rtc driver layer tweaked for watchdog.

Revised to fix problems noted by Hans de Goede

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:25 +02:00
Wim Van Sebroeck fb5f665816 watchdog: watchdog_core.h: make functions extern
Make the functions in watchdog_core.h extern like it should.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:07 +02:00
Wim Van Sebroeck 6cfb5aa836 watchdog: correct the name of the watchdog_core inlude file
The watchdog_core include file should have been named
watchdog_core.h and not watchdog_dev.h . Correct this.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:54:03 +02:00
Viresh Kumar 257f8c4aae watchdog: Add watchdog_active() routine
Some watchdog may need to check if watchdog is ACTIVE or not, for example in
their suspend/resume hooks.

This patch adds this routine and changes the core drivers to use it.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:53:46 +02:00
H Hartley Sweeten 09a46e7397 watchdog: watchdog_dev: include private header to pickup global symbol prototypes
Include the private watchdog_dev.h header to pickup the prototypes for the
watchdog_dev_register/unregister functions.

This quiets the following sparse warnings:

warning: symbol 'watchdog_dev_register' was not declared. Should it be static?
warning: symbol 'watchdog_dev_unregister' was not declared. Should it be static?

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-05-30 07:53:28 +02:00
Linus Torvalds 731a7378b8 Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 trampoline rework from H. Peter Anvin:
 "This code reworks all the "trampoline"/"realmode" code (various bits
  that need to live in the first megabyte of memory, most but not all of
  which runs in real mode at some point) in the kernel into a single
  object.  The main reason for doing this is that it eliminates the last
  place in the kernel where we needed pages to be mapped RWX.  This code
  separates all that code into proper R/RW/RX pages."

Fix up conflicts in arch/x86/kernel/Makefile (mca removed next to reboot
code), and arch/x86/kernel/reboot.c (reboot code moved around in one
branch, modified in this one), and arch/x86/tools/relocs.c (mostly same
code came in earlier due to working around the ld bugs just before the
3.4 release).

Also remove stale x86-relocs entry from scripts/.gitignore as per Peter
Anvin.

* commit '61f5446169046c217a5479517edac3a890c3bee7': (36 commits)
  x86, realmode: Move end signature into header.S
  x86, relocs: When printing an error, say relative or absolute
  x86, relocs: More relocations which may end up as absolute
  x86, relocs: Workaround for binutils 2.22.52.0.1 section bug
  xen-acpi-processor: Add missing #include <xen/xen.h>
  acpi, bgrd: Add missing <linux/io.h> to drivers/acpi/bgrt.c
  x86, realmode: Change EFER to a single u64 field
  x86, realmode: Move kernel/realmode.c to realmode/init.c
  x86, realmode: Move not-common bits out of trampoline_common.S
  x86, realmode: Mask out EFER.LMA when saving trampoline EFER
  x86, realmode: Fix no cache bits test in reboot_32.S
  x86, realmode: Make sure all generated files are listed in targets
  x86, realmode: build fix: remove duplicate build
  x86, realmode: read cr4 and EFER from kernel for 64-bit trampoline
  x86, realmode: fixes compilation issue in tboot.c
  x86, realmode: move relocs from scripts/ to arch/x86/tools
  x86, realmode: header for trampoline code
  x86, realmode: flattened rm hierachy
  x86, realmode: don't copy real_mode_header
  x86, realmode: fix 64-bit wakeup sequence
  ...
2012-05-29 20:14:53 -07:00
Neil Horman 3fdcbd4531 drop_monitor: Add module alias to enable automatic module loading
Now that we have module alias macros for generic netlink families, lets use
those to mark modules with the appropriate family names for loading

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-29 22:33:56 -04:00
Neil Horman e9412c3708 genetlink: Build a generic netlink family module alias
Generic netlink searches for -type- formatted aliases when requesting a module to
fulfill a protocol request (i.e. net-pf-16-proto-16-type-<x>, where x is a type
value).  However generic netlink protocols have no well defined type numbers,
they have string names.  Modify genl_ctrl_getfamily to request an alias in the
format net-pf-16-proto-16-family-<x> instead, where x is a generic string, and
add a macro that builds on the previously added MODULE_ALIAS_NET_PF_PROTO_NAME
macro to allow modules to specifify those generic strings.

Note, l2tp previously hacked together an net-pf-16-proto-16-type-l2tp alias
using the MODULE_ALIAS macro, with these updates we can convert that to use the
PROTO_NAME macro.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: James Chapman <jchapman@katalix.com>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-29 22:33:56 -04:00
Neil Horman 2033e9bf06 net: add MODULE_ALIAS_NET_PF_PROTO_NAME
The MODULE_ALAIS_NET_PF macro set is missing a variant that allows for the
appending of an arbitrary string to the net-pf-<x>-proto-<y> base.  while
MODULE_ALIAS_NET_PF_PROTO_NAME_TYPE allows an appending of a numerical type, we
need to be able to append a generic string to support generic netlink families
that have neither a fix numberical protocol nor type number

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-29 22:33:55 -04:00
Devendra Naga 20571d8894 r6040: Do a Proper deinit at errorpath and also when driver unloads (calling r6040_remove_one)
so if mdiobus_alloc fails, the errorpath doesnt do a netif_napi_del and also
doesn't set the priv data of the driver to NULL.

at the driver unload stage the driver doesn't remove the NAPI context, and
doesnt' set the priv data to NULL, and also doesn't call the pci_iounmap.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-29 22:31:08 -04:00
Devendra Naga acaf827682 r6040: disable pci device if the subsequent calls (after pci_enable_device) fails
the calls after the pci_enable_device may fail, and will error out with out
disabling it. disable the device at error paths.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-29 22:31:08 -04:00
Arnaldo Carvalho de Melo 05e8b0804e perf ui browser: Stop using 'self'
Stop using this python/OOP convention, doesn't really helps. Will do
more from time to time till we get it cleaned up in all of /perf.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-5dyxyb8o0gf4yndk27kafbd1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-29 22:42:18 -03:00
Linus Torvalds 87a5af24e5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
Pull EDAC internal API changes from Mauro Carvalho Chehab:
 "This changeset is the first part of a series of patches that fixes the
  EDAC sybsystem.  On this set, it changes the Kernel EDAC API in order
  to properly represent the Intel i3/i5/i7, Xeon 3xxx/5xxx/7xxx, and
  Intel E5-xxxx memory controllers.

  The EDAC core used to assume that:

       - the DRAM chip select pin is directly accessed by the memory
         controller

       - when multiple channels are used, they're all filled with the
         same type of memory.

  None of the above premises is true on Intel memory controllers since
  2002, when RAMBUS and FB-DIMMs were introduced, and Advanced Memory
  Buffer or by some similar technologies hides the direct access to the
  DRAM pins.

  So, the existing drivers for those chipsets had to lie to the EDAC
  core, in general telling that just one channel is filled.  That
  produces some hard to understand error messages like:

       EDAC MC0: CE row 3, channel 0, label "DIMM1": 1 Unknown error(s): memory read error on FATAL area : cpu=0 Err=0008:00c2 (ch=2), addr = 0xad1f73480 => socket=0, Channel=0(mask=2), rank=1

  The location information there (row3 channel 0) is completely bogus:
  it has no physical meaning, and are just some random values that the
  driver uses to talk with the EDAC core.  The error actually happened
  at CPU socket 0, channel 0, slot 1, but this is not reported anywhere,
  as the EDAC core doesn't know anything about the memory layout.  So,
  only advanced users that know how the EDAC driver works and that tests
  their systems to see how DIMMs are mapped can actually benefit for
  such error logs.

  This patch series fixes the error report logic, in order to allow the
  EDAC to expose the memory architecture used by them to the EDAC core.
  So, as the EDAC core now understands how the memory is organized, it
  can provide an useful report:

       EDAC MC0: CE memory read error on DIMM1 (channel:0 slot:1 page:0x364b1b offset:0x600 grain:32 syndrome:0x0 - count:1 area:DRAM err_code:0001:0090 socket:0 channel_mask:1 rank:4)

  The location of the DIMM where the error happened is reported by "MC0"
  (cpu socket #0), at "channel:0 slot:1" location, and matches the
  physical location of the DIMM.

  There are two remaining issues not covered by this patch series:

       - The EDAC sysfs API will still report bogus values.  So,
         userspace tools like edac-utils will still use the bogus data;

       - Add a new tracepoint-based way to get the binary information
         about the errors.

  Those are on a second series of patches (also at -next), but will
  probably miss the train for 3.5, due to the slow review process."

Fix up trivial conflict (due to spelling correction of removed code) in
drivers/edac/edac_device.c

* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac: (42 commits)
  i7core: fix ranks information at the per-channel struct
  i5000: Fix the fatal error handling
  i5100_edac: Fix a warning when compiled with 32 bits
  i82975x_edac: Test nr_pages earlier to save a few CPU cycles
  e752x_edac: provide more info about how DIMMS/ranks are mapped
  i5000_edac: Fix the logic that retrieves memory information
  i5400_edac: improve debug messages to better represent the filled memory
  edac: Cleanup the logs for i7core and sb edac drivers
  edac: Initialize the dimm label with the known information
  edac: Remove the legacy EDAC ABI
  x38_edac: convert driver to use the new edac ABI
  tile_edac: convert driver to use the new edac ABI
  sb_edac: convert driver to use the new edac ABI
  r82600_edac: convert driver to use the new edac ABI
  ppc4xx_edac: convert driver to use the new edac ABI
  pasemi_edac: convert driver to use the new edac ABI
  mv64x60_edac: convert driver to use the new edac ABI
  mpc85xx_edac: convert driver to use the new edac ABI
  i82975x_edac: convert driver to use the new edac ABI
  i82875p_edac: convert driver to use the new edac ABI
  ...
2012-05-29 18:32:37 -07:00
Linus Torvalds 7e5b2db77b Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "The whole series has been sitting in -next for quite a while with no
  complaints.  The last change to the series was before the weekend the
  removal of an SPI patch which Grant - even though previously acked by
  himself - appeared to raise objections.  So I removed it until the
  situation is clarified.  Other than that all the patches have the acks
  from their respective maintainers, all MIPS and x86 defconfigs are
  building fine and I'm not aware of any problems introduced by this
  series.

  Among the key features for this patch series is a sizable patchset for
  Lantiq which among other things introduces support for Lantiq's
  flagship product, the FALCON SOC.  It also means that the opensource
  developers behind this patchset have overtaken Lantiq's competing
  inhouse development team that was working behind closed doors.

  Less noteworthy the ath79 patchset which adds support for a few more
  chip variants, cleanups and fixes.  Finally the usual dose of tweaking
  of generic code."

Fix up trivial conflicts in arch/mips/lantiq/xway/gpio_{ebu,stp}.c where
printk spelling fixes clashed with file move and eventual removal of the
printk.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (81 commits)
  MIPS: lantiq: remove orphaned code
  MIPS: Remove all -Wall and almost all -Werror usage from arch/mips.
  MIPS: lantiq: implement support for FALCON soc
  MTD: MIPS: lantiq: verify that the NOR interface is available on falcon soc
  MTD: MIPS: lantiq: implement OF support
  watchdog: MIPS: lantiq: implement OF support and minor fixes
  SERIAL: MIPS: lantiq: implement OF support
  GPIO: MIPS: lantiq: convert gpio-stp-xway to OF
  GPIO: MIPS: lantiq: convert gpio-mm-lantiq to OF and of_mm_gpio
  GPIO: MIPS: lantiq: move gpio-stp and gpio-ebu to the subsystem folder
  MIPS: pci: convert lantiq driver to OF
  MIPS: lantiq: convert dma to platform driver
  MIPS: lantiq: implement support for clkdev api
  MIPS: lantiq: drop ltq_gpio_request() and gpio_to_irq()
  OF: MIPS: lantiq: implement irq_domain support
  OF: MIPS: lantiq: implement OF support
  MIPS: lantiq: drop mips_machine support
  OF: PCI: const usage needed by MIPS
  MIPS: Cavium: Remove smp_reserve_lock.
  MIPS: Move cache setup to setup_arch().
  ...
2012-05-29 18:27:19 -07:00
Linus Torvalds 227d1e4319 Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull arm updates from Russell King:
 "This contains both some fixes found when trying to get the
  Assabet+neponset setup as a replacement firewall with a 3c589 PCMCIA
  card, and a bunch of changes from Al to fix up the ARM signal
  handling, particularly some of the restart behaviour."

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: neponset: make sure neponset_ncr_frob() is exported
  ARM: fix out[bwl]()
  arm: don't open-code ptrace_report_syscall()
  arm: bury unused _TIF_RESTORE_SIGMASK
  arm: remove unused restart trampoline
  arm: new way of handling ERESTART_RESTARTBLOCK
  arm: if we get into work_pending while returning to kernel mode, just go away
  arm: don't call try_to_freeze() from do_signal()
  arm: if there's no handler we need to restore sigmask, syscall or no syscall
  arm: trim _TIF_WORK_MASK, get rid of useless test and branch...
  arm: missing checks of __get_user()/__put_user() return values
2012-05-29 18:21:44 -07:00
Arnaldo Carvalho de Melo c323cf0400 perf annotate browser: Read perf config file for settings
The defaults are:

[annotate]

	hide_src_code = false
	use_offset = true
	jump_arrows = true
	show_nr_jumps = false

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-q4egci70rjgxh7bogbbfpcyf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-05-29 22:06:30 -03:00
Linus Torvalds 7d36014b97 Merge branch 'akpm' (Andrew's patch-bomb)
Merge patches through Andrew Morton:
 "180 patches - err 181 - listed below:

   - most of MM.  I held back the (large) "memcg: add hugetlb extension"
     series because a bunfight has recently broken out.

   - leds.  After this, Bryan Wu will be handling drivers/leds/

   - backlight

   - lib/

   - rtc"

* emailed from Andrew Morton <akpm@linux-foundation.org>: (181 patches)
  drivers/rtc/rtc-s3c.c: fix compiler warning
  drivers/rtc/rtc-tegra.c: clean up probe/remove routines
  drivers/rtc/rtc-pl031.c: remove RTC timer interrupt handling
  drivers/rtc/rtc-lpc32xx.c: add device tree support
  drivers/rtc/rtc-m41t93.c: don't let get_time() reset M41T93_FLAG_OF
  rtc: ds1307: add trickle charger support
  rtc: ds1307: remove superfluous initialization
  rtc: rename CONFIG_RTC_MXC to CONFIG_RTC_DRV_MXC
  drivers/rtc/Kconfig: place RTC_DRV_IMXDI and RTC_MXC under "on-CPU RTC drivers"
  drivers/rtc/rtc-pcf8563.c: add RTC_VL_READ/RTC_VL_CLR ioctl feature
  rtc: add ioctl to get/clear battery low voltage status
  drivers/rtc/rtc-ep93xx.c: convert to use module_platform_driver()
  rtc/spear: add Device Tree probing capability
  lib/vsprintf.c: "%#o",0 becomes '0' instead of '00'
  radix-tree: fix preload vector size
  spinlock_debug: print kallsyms name for lock
  vsprintf: fix %ps on non symbols when using kallsyms
  lib/bitmap.c: fix documentation for scnprintf() functions
  lib/string_helpers.c: make arrays static
  lib/test-kstrtox.c: mark const init data with __initconst instead of __initdata
  ...
2012-05-29 18:05:31 -07:00