Up to now PA-RISC could live with a trivial version of access_ok().
Our fault handlers can correctly handle fault cases.
But testcases showed that we need a better access check else we won't
always return correct errno failure codes to userspace.
Problem showed up during 32bit userspace tests in which writev() used a
32bit memory area and length which would then wrap around on 64bit
kernel.
Signed-off-by: Helge Deller <deller@gmx.de>
In case we fail to power up other CPUs in a SMP system, the kernel
currently shows a wrong number of online CPUs. This change makes the
output more verbose on how many of the CPUs are online. Example:
CPU(s): 1 out of 2 PA8800 (Mako) at 900.000000 MHz online.
Signed-off-by: Helge Deller <deller@gmx.de>
The number of IPI calls is already visible as per-cpu IPI irq counters
in/proc/cpuinfo, so let's drop this additional counting.
This partly reverts:
cd85d55 parisc: more irq statistics in /proc/interrupts
Signed-off-by: Helge Deller <deller@gmx.de>
Each CPU has it's own Control Register 16 (CR16) which is used as time source
for the udelay() function. But since the CR16 registers across different CPUs
are not synced, we need to recalculate the loop count if we get switched away
to ensure that we really delay as much time as requested.
Signed-off-by: Helge Deller <deller@gmx.de>
This patch removes a duplicate define from
arch/parisc/math-emu/float.h
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Install targets (install, zinstall, uinstall) on parisc have a
dependency to vmlinux. This may cause parts of the kernel to be rebuilt
during installation. We must avoid this since this may run as root.
Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus
emphasized this in:
http://lkml.org/lkml/2013/7/10/600
So on parisc and maybe other archs we need the same as for x86:
1648e4f8 x86, kbuild: make "make install" not depend on vmlinux
This parisc patch was inspired by:
19514fc6 arm, kbuild: make "make install" not depend on vmlinux
Signed-off-by: Helge Deller <deller@gmx.de>
Provide a macro ASM_EXCEPTIONTABLE_ENTRY() to create exception table
entries and convert all open-coded places to use that macro.
This patch is a first step toward creating a exception table which only
holds 32bit pointers even on a 64bit kernel. That way in my own kernel
I was able to reduce the in-kernel exception table from 44kB to 22kB.
Signed-off-by: Helge Deller <deller@gmx.de>
Pull CIFS updates from Steve French:
"Includes a couple of fixes, plus changes to make multiplex identifiers
easier to read and correlate with network traces, and a set of
enhancements for SMB3 dialect. Also adds support for per-file
compression for both cifs and smb2/smb3 ("chattr +c filename).
Should have at least one other merge request ready by next week with
some new SMB3 security features and copy offload support"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
Query network adapter info at mount time for debugging
Fix unused variable warning when CIFS POSIX disabled
Allow setting per-file compression via CIFS protocol
Query File System Alignment
Query device characteristics at mount time from server on SMB2/3 not just on cifs mounts
cifs: Send a logoff request before removing a smb session
cifs: Make big endian multiplex ID sequences monotonic on the wire
cifs: Remove redundant multiplex identifier check from check_smb_hdr()
Query file system attributes from server on SMB2, not just cifs, mounts
Allow setting per-file compression via SMB2/3
Fix corrupt SMB2 ioctl requests
Highlights include:
- Changes to the RPC socket code to allow NFSv4 to turn off timeout+retry
- Detect TCP connection breakage through the "keepalive" mechanism
- Add client side support for NFSv4.x migration (Chuck Lever)
- Add support for multiple security flavour arguments to the "sec=" mount
option (Dros Adamson)
- fs-cache bugfixes from David Howells:
- Fix an issue whereby caching can be enabled on a file that is open for
writing
- More NFSv4 open code stable bugfixes
- Various Labeled NFS (selinux) bugfixes, including one stable fix
- Fix buffer overflow checking in the RPCSEC_GSS upcall encoding
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Merge tag 'nfs-for-3.13-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Highlights include:
- Changes to the RPC socket code to allow NFSv4 to turn off
timeout+retry:
* Detect TCP connection breakage through the "keepalive" mechanism
- Add client side support for NFSv4.x migration (Chuck Lever)
- Add support for multiple security flavour arguments to the "sec="
mount option (Dros Adamson)
- fs-cache bugfixes from David Howells:
* Fix an issue whereby caching can be enabled on a file that is
open for writing
- More NFSv4 open code stable bugfixes
- Various Labeled NFS (selinux) bugfixes, including one stable fix
- Fix buffer overflow checking in the RPCSEC_GSS upcall encoding"
* tag 'nfs-for-3.13-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (68 commits)
NFSv4.2: Remove redundant checks in nfs_setsecurity+nfs4_label_init_security
NFSv4: Sanity check the server reply in _nfs4_server_capabilities
NFSv4.2: encode_readdir - only ask for labels when doing readdirplus
nfs: set security label when revalidating inode
NFSv4.2: Fix a mismatch between Linux labeled NFS and the NFSv4.2 spec
NFS: Fix a missing initialisation when reading the SELinux label
nfs: fix oops when trying to set SELinux label
nfs: fix inverted test for delegation in nfs4_reclaim_open_state
SUNRPC: Cleanup xs_destroy()
SUNRPC: close a rare race in xs_tcp_setup_socket.
SUNRPC: remove duplicated include from clnt.c
nfs: use IS_ROOT not DCACHE_DISCONNECTED
SUNRPC: Fix buffer overflow checking in gss_encode_v0_msg/gss_encode_v1_msg
SUNRPC: gss_alloc_msg - choose _either_ a v0 message or a v1 message
SUNRPC: remove an unnecessary if statement
nfs: Use PTR_ERR_OR_ZERO in 'nfs/nfs4super.c'
nfs: Use PTR_ERR_OR_ZERO in 'nfs41_callback_up' function
nfs: Remove useless 'error' assignment
sunrpc: comment typo fix
SUNRPC: Add correct rcu_dereference annotation in rpc_clnt_set_transport
...
dmesg here has a 100+ consecutive lines of:
[ 1464.219446] hda-intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x170500
[ 1464.219451] hda-intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x170500
[ 1464.219454] hda-intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x170500
...
Ratelimit the message to reduce the dmesg log noise.
Coalesce the format while at it.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When allocating memory space for DMA buffer, use on-chip internal SRAM
as default choice to save power. Since the core would allocate memory
from traditional external memory if iram allocation failed, we don't
need to worry about any side effect.
Signed-off-by: Nicolin Chen <b42378@freescale.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Leaving BUG_ON() in a core layer like dapm is rather inappropriate as
it leads to panic(), even though sanity checks might be still useful
for debugging.
Instead, Use WARN_ON(), and handle the error cases accordingly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This patch does:
- Move the sanity check with WARN_ON() in wm_adsp_region_to_reg() and
remove the checks in the callers,
- Fix wrong WARN_ON() usages, replaced with WARN(),
- Fix unreachable or wrong BUG_ON() usages and replace with WARN_ON().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation. For that
purpose, it'd be more convenient to use WARN() instead with more
error information.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation. For that
purpose, it'd be more convenient to use WARN() instead with more
error information.
Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation. For that
purpose, it'd be more convenient to use WARN() instead with more
error information.
Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation. For that
purpose, it'd be more convenient to use WARN() instead with more
error information.
Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation. For that
purpose, it'd be more convenient to use WARN() instead with more
error information.
Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation. For that
purpose, it'd be more convenient to use WARN() instead with more
error information.
Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation. For that
purpose, it'd be more convenient to use WARN() instead with more
error information.
Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation. For that
purpose, it'd be more convenient to use WARN() instead with more
error information.
Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Use WARN_ON() and handle the error cases accordingly.
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Use WARN_ON() and handle the error cases accordingly.
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Use WARN_ON() and handle the error cases accordingly.
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
BUG_ON() is rather useless for debugging as it leads to panic().
Use WARN_ON() and handle the error cases accordingly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
The commit 712b6aa873 [Nov7 linux-next
via tip/auto-latest] ("intel_mid: Renamed *mrst* to *intel_mid*")
adds a __cpuinit.
We removed this a couple versions ago; we now want to remove
the compat no-op stubs. Introducing new users is not what
we want to see at this point in time, as it will break once
the stubs are gone.
Cc: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Link: http://lkml.kernel.org/r/1383849290-11250-1-git-send-email-paul.gortmaker@windriver.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
The non-IPI interrupts are displayed only for the online cpus from
show_interrupts in kernel/irq/proc.c before calling arch_show_interrupts().
As a result, the column headers and the IPI count don't match if any
CPU is offline.
This patch fixes show_ipi_list to display IPIs for online CPUs only.
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This patch fixes interrupt-map entry matching code to properly match all
specifier cells with interrupt map entries.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Tested-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Since the recent fake ELD patches, we can remove the check for AMD
HDMI in hdmi_present_sense() and decide the return value from
eld_valid value.
Suggested by Anssi Hannula.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
. Fix version when building out of tree, as when using one of these:
$ make help | grep perf
perf-tar-src-pkg - Build perf-3.12.0.tar source tarball
perf-targz-src-pkg - Build perf-3.12.0.tar.gz source tarball
perf-tarbz2-src-pkg - Build perf-3.12.0.tar.bz2 source tarball
perf-tarxz-src-pkg - Build perf-3.12.0.tar.xz source tarball
$
from David Ahern.
. Don't relookup fields by name in each sample in 'trace'.
. 'perf record' code cleanups, from David Ahern.
. Remove unneeded include in sort.h, from Rodrigo Campos.
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/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
* Fix version when building out of tree, as when using one of these:
$ make help | grep perf
perf-tar-src-pkg - Build perf-3.12.0.tar source tarball
perf-targz-src-pkg - Build perf-3.12.0.tar.gz source tarball
perf-tarbz2-src-pkg - Build perf-3.12.0.tar.bz2 source tarball
perf-tarxz-src-pkg - Build perf-3.12.0.tar.xz source tarball
$
from David Ahern.
* Don't relookup fields by name in each sample in 'trace',
by Arnaldo Carvalho de Melo.
* 'perf record' code cleanups, from David Ahern.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
There is no point in sort.h including itself.
The include was added when the file was created, in commit "perf tools:
Create util/sort.and use it" (dd68ada2d) and added a include to "sort.h"
in lot of files (all the files that started using the file). It was
probably added by mistake on sort.h too.
Signed-off-by: Rodrigo Campos <rodrigo@sdfg.com.ar>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383776454-10595-1-git-send-email-rodrigo@sdfg.com.ar
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Just added a missing ifdef:
sound/pci/ice1712/quartet.c:210:14: warning: 'get_binary' defined but not used [-Wunused-function]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Instead do the lookups just when creating the tracepoints, initially for
the most common, raw_syscalls:sys_{enter,exit}.
It works by having evsel->priv have a per tracepoint structure with
entries for the fields, for direct access, with the offset and a
function to get the value from the sample, doing the swap if needed.
Using a simple workload that does M millions write syscalls, we go from:
# perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null
Performance counter stats for '/tmp/oldperf trace ./sc_hello 100':
8,366,771,459 cycles
2.668025928 seconds time elapsed
# perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null
Performance counter stats for 'perf trace ./sc_hello 100':
8,345,187,650 cycles
2.631748425 seconds time elapsed
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
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-eyfhvoo510a5i10b27dnvm88@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When building perf out of tree:
$ make perf-tar-src-pkg
$ tar -xf perf-<ver>.tar -C /tmp
$ cd /tmp/perf<ver>
$ make -C tools/perf
you get this warning message:
make[1]: *** No rule to make target `kernelversion'. Stop.
Fix it by saving the perf version in the tar file and using that for the
out of tree builds.
v2: removed short form request and fixed up version string from usual output.
Signed-off-by: David Ahern <dsahern@gmail.com>
Suggested-by: Ingo Molnar <mingo@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1383753335-25782-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Not needed since this cset:
fcf65bf149af: perf evsel: Cache associated event_format
So lets trim this struct a bit.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
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-j8setslokt0goiwxq9dogzqm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This fixes a race condition in case several monitors are being
repolled in parallel.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
If the jack should not be reported to userspace (e g, because it is
in some transitional state), one can set this flag.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
There is a small gap between the jack detection unsolicited event and
the time the ELD is updated. When user-space queries the HDMI ELD
immediately after receiving the notification, it might fail because of
this gap.
For avoiding such a problem, this patch tries to delay the HDMI jack
detect notification until ELD information is fully updated. The
workaround is imperfect, but good enough as a starting point.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This reverts commit cb26a31157.
It mysteriously causes NetworkManager to not find the wireless device
for me. As far as I can tell, Tejun *meant* for this commit to not make
any semantic changes, but there clearly are some. So revert it, taking
into account some of the calling convention changes that happened in
this area in subsequent commits.
Cc: Tejun Heo <tj@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We currently assume that the DMA Slave Config will be fully populated
by the platform, however some DMA Engines make decisions based on zero
(default) flags such as DMA_SLAVE_BUSWIDTH_UNDEFINED and as this is a
static declaration we need to memset it to clear the data area.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This patch converts irq-bcm2835 driver to use the new IRQCHIP_DECLARE and
irqchip_init.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Cc: Simon Arlott <simon@fire.lp0.eu>
Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-rpi-kernel@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
When installing, "scripts/headers_install.sh" will strip guard macro'
"_UAPI" to prevent from appearing it to users. And also, all another
files which need uapi prefix always use "_UAPI", not "UAPI".
So use "_UAPI" instead of "UAPI" on the guard macro, and also give a
comment for "#endif".
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Helge Deller