Create a sysfs entry, '/sys/bus/event_source/devices/cpu/format/event'
which describes the format of the POWER7 PMU events.
This code is based on corresponding code in x86.
Changelog[v4]: [Michael Ellerman, Paul Mckerras] The event format is different
for other POWER cpus. So move the code to POWER7-specific,
power7-pmu.c Also, the POWER7 format uses bits 0-19 not 0-20.
Changelog[v2]: [Jiri Osla] Use PMU_FORMAT_ATTR rather than duplicating code.
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Tested-by: Michael Ellerman <michael@ellerman.id.au>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: benh@kernel.crashing.org
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20130306054826.GA14627@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fix segfault in perf probe due to a bug introduced by commit d8639f068
(perf tools: Stop using 'self' in strlist).
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20130312090217.GC4668@in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
having /usr/local/include hardcoded into the makefile is not necessary
as this is automatically included by GCC. It also infects cross-compile
builds with the host systems includes.
Signed-off-by: Jack Mitchell <jack.mitchell@dbbroadcast.co.uk>
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/1362741712-21308-1-git-send-email-ml@communistcode.co.uk
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Currently the -C option does not work for record command, because of the
targets mismatch when synthesizing threads.
Fixing this by using proper target interface for the synthesize
decision.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Reported-by: Oleg Nesterov <oleg@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1361785972-7431-2-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It seems gcc (4.7.2) defines _FORTIFY_SOURCE internally and becomes
confused when it sees another definition in flags.
For me, build failed like this:
CHK glibc
Makefile:548: *** No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static. Stop.
and only with V=1 it printed:
<command-line>:0:0: error: "_FORTIFY_SOURCE" redefined [-Werror]
<stdin>:1:0: note: this is the location of the previous definition
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
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/1361113416-8662-1-git-send-email-marcin.slusarz@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit ad0de09 "Enable the runtime switching of perf data file" broke
the build with NO_NEWT=1:
CC builtin-report.o
builtin-report.c: In function '__cmd_report':
builtin-report.c:479:15: error: 'K_SWITCH_INPUT_DATA' undeclared (first use in this function)
builtin-report.c:479:15: note: each undeclared identifier is reported only once for each function it appears in
builtin-report.c: In function 'cmd_report':
builtin-report.c:823:13: error: 'K_SWITCH_INPUT_DATA' undeclared (first use in this function)
make: *** [builtin-report.o] Error 1
Fix it by adding a dummy definition of K_SWITCH_INPUT_DATA.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1361854923-1814-2-git-send-email-michael@ellerman.id.au
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit 18c9e5c "Make it to be able to skip unannotatable symbols" broke
the build with NO_NEWT=1:
CC builtin-annotate.o
builtin-annotate.c: In function 'hists__find_annotations':
builtin-annotate.c:161:4: error: duplicate case value
builtin-annotate.c:154:4: error: previously used here
make: *** [builtin-annotate.o] Error 1
This is because without NEWT support K_LEFT is #defined to -1 in
utils/hist.h
Fix it by shifting the K_LEFT/K_RIGHT #defines out of the likely range
of error values.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1361854923-1814-1-git-send-email-michael@ellerman.id.au
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The commit 2e124b4a39 removed the checks
that prevented qt2_process_read_urb() from trying to put chars into
ttys that weren't actually opened. This resulted in 'tty is NULL'
warnings from flush_to_ldisc() when the device was used.
The devices use just one read urb for all ports. As a result
qt2_process_read_urb() may be called with the current port set to a
port number that has not been opened. Add a check if the port is open
before calling tty_flip_buffer_push().
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Turns out we just need altsetting 1 and then we can talk to it.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix kernel-doc warning in futex.c and convert 'Returns' to the new Return:
kernel-doc notation format.
Warning(kernel/futex.c:2286): Excess function parameter 'clockrt' description in 'futex_wait_requeue_pi'
Fix one spello.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix new kernel-doc warnings in kernel/signal.c:
Warning(kernel/signal.c:2689): No description found for parameter 'uset'
Warning(kernel/signal.c:2689): Excess function parameter 'set' description in 'sys_rt_sigpending'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix new kernel-doc warnings in idr:
Warning(include/linux/idr.h:113): No description found for parameter 'idr'
Warning(include/linux/idr.h:113): Excess function parameter 'idp' description in 'idr_find'
Warning(lib/idr.c:232): Excess function parameter 'id' description in 'sub_alloc'
Warning(lib/idr.c:232): Excess function parameter 'id' description in 'sub_alloc'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Compile warnings and errors (one on x86, two on ARM)
* WARNING in xen-pciback
* Use the acpi_processor_get_performance_info instead of the 'register' version
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Merge tag 'stable/for-linus-3.9-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen fixes from Konrad Rzeszutek Wilk:
- Compile warnings and errors (one on x86, two on ARM)
- WARNING in xen-pciback
- Use the acpi_processor_get_performance_info instead of the 'register'
version
* tag 'stable/for-linus-3.9-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/acpi: remove redundant acpi/acpi_drivers.h include
xen: arm: mandate EABI and use generic atomic operations.
acpi: Export the acpi_processor_get_performance_info
xen/pciback: Don't disable a PCI device that is already disabled.
I had assumed that the only use of module aliases for filesystems
prior to "fs: Limit sys_mount to only request filesystem modules."
was in request_module. It turns out I was wrong. At least mkinitcpio
in Arch linux uses these aliases.
So readd the preexising aliases, to keep from breaking userspace.
Userspace eventually will have to follow and use the same aliases the
kernel does. So at some point we may be delete these aliases without
problems. However that day is not today.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
The buffer for responses must not overflow.
If this would happen, set a flag, drop the data and return
an error after user space has read all remaining data.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
CC: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In commit 887cbce0ad ("arch Kconfig: centralise ARCH_NO_VIRT_TO_BUS")
I introduced the config sybmol HAVE_VIRT_TO_BUS and selected that where
needed. I am not sure what I was thinking. Instead, just directly
select VIRT_TO_BUS where it is needed.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Looking at mm/process_vm_access.c:process_vm_rw() and comparing it to
compat_process_vm_rw() shows that the compatibility code requires an
explicit "access_ok()" check before calling
compat_rw_copy_check_uvector(). The same difference seems to appear when
we compare fs/read_write.c:do_readv_writev() to
fs/compat.c:compat_do_readv_writev().
This subtle difference between the compat and non-compat requirements
should probably be debated, as it seems to be error-prone. In fact,
there are two others sites that use this function in the Linux kernel,
and they both seem to get it wrong:
Now shifting our attention to fs/aio.c, we see that aio_setup_iocb()
also ends up calling compat_rw_copy_check_uvector() through
aio_setup_vectored_rw(). Unfortunately, the access_ok() check appears to
be missing. Same situation for
security/keys/compat.c:compat_keyctl_instantiate_key_iov().
I propose that we add the access_ok() check directly into
compat_rw_copy_check_uvector(), so callers don't have to worry about it,
and it therefore makes the compat call code similar to its non-compat
counterpart. Place the access_ok() check in the same location where
copy_from_user() can trigger a -EFAULT error in the non-compat code, so
the ABI behaviors are alike on both compat and non-compat.
While we are here, fix compat_do_readv_writev() so it checks for
compat_rw_copy_check_uvector() negative return values.
And also, fix a memory leak in compat_keyctl_instantiate_key_iov() error
handling.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull drm nouveau fixes from Dave Airlie:
"This is just nouveau fixes from Ben, one fixes a nasty oops that some
Fedora people have been seeing, so I'd like to get it out of the way."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/nv50: use correct tiling methods for m2mf buffer moves
drm/nouveau: idle channel before releasing notify object
drm/nouveau: fix regression in vblanking
drm/nv50: encoder creation failure doesn't mean full init failure
These bug fixes are for the largest part for mvebu/kirkwood, which
saw a few regressions after the clock infrastructure was enabled,
and for OMAP, which showed a few more preexisting bugs with
the new multiplatform support.
Other small fixes are for imx, mxs, tegra, spear and socfpga.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"These bug fixes are for the largest part for mvebu/kirkwood, which saw
a few regressions after the clock infrastructure was enabled, and for
OMAP, which showed a few more preexisting bugs with the new
multiplatform support.
Other small fixes are for imx, mxs, tegra, spear and socfpga"
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
ARM: spear3xx: Use correct pl080 header file
Arm: socfpga: pl330: Add #dma-cells for generic dma binding support
ARM: multiplatform: Sort the max gpio numbers.
ARM: imx: fix typo "DEBUG_IMX50_IMX53_UART"
ARM: imx: pll1_sys should be an initial on clk
arm: mach-orion5x: fix typo in compatible string of a .dts file
arm: mvebu: fix address-cells in mpic DT node
arm: plat-orion: fix address decoding when > 4GB is used
arm: mvebu: Reduce reg-io-width with UARTs
ARM: Dove: add RTC device node
arm: mvebu: enable the USB ports on Armada 370 Reference Design board
ARM: dove: drop "select COMMON_CLK_DOVE"
rtc: rtc-mv: Add support for clk to avoid lockups
gpio: mvebu: Add clk support to prevent lockup
ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
ARM: mxs: cfa10049: Fix fb initialisation function
ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ"
ARM: OMAP: RX-51: add missing USB phy binding
clk: Tegra: Remove duplicate smp_twd clock
...
Pull m68knommu fixes from Greg Ungerer:
"It contains a few small fixes for the non-MMU m68k platforms. Fixes
some compilation problems, some broken header definitions, removes an
unused config option and adds a name for the old 68000 CPU support."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: drop "select EMAC_INC"
m68knommu: fix misnamed GPIO pin definition for ColdFire 528x CPU
m68knommu: fix MC68328.h defines
m68knommu: fix build when CPU is not coldfire
m68knommu: add CPU_NAME for 68000
Pull key management race fix from James Morris.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
keys: fix race with concurrent install_user_keyrings()
Pull Ceph fix from Sage Weil:
"This fixes a bug in the new message decoding that just went in during
the last window."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
libceph: fix decoding of pgids
Pull nfsd bugfixes from Bruce Fields:
"Some minor fallout from the user-namespace work broke most krb5 mounts
to nfsd, and I screwed up a change to the AF_LOCAL rpc code."
* 'for-3.9' of git://linux-nfs.org/~bfields/linux:
sunrpc: don't attempt to cancel unitialized work
nfsd: fix krb5 handling of anonymous principals
Although the swap is wrapped with a spin_lock, the assignment
of the temp buffer used to swap is not within that lock.
It needs to be moved into that lock, otherwise two swaps
happening on two different CPUs, can end up using the wrong
temp buffer to assign in the swap.
Luckily, all current callers of the swap function appear to have
their own locks. But in case something is added that allows two
different callers to call the swap, then there's a chance that
this race can trigger and corrupt the buffers.
New code is coming soon that will allow for this race to trigger.
I've Cc'd stable, so this bug will not show up if someone backports
one of the changes that can trigger this bug.
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The Rigblaster Advantage is an amateur radio interface sold by West Mountain
Radio. It contains a cp210x serial interface but the device ID is not in
the driver.
Signed-off-by: Steve Conklin <sconklin@canonical.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Kconfig symbol SERIAL_S3C2412 got removed in commit
da121506eb ("serial: samsung: merge
probe() function from all SoC specific extensions"). But it also added a
last reference to that symbol. The commit and the tree make clear that
CPU_S3C2412 should have been used instead.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
With commit 835d844d1 (8250_pnp: do pnp probe before legacy probe), the
8250 driver was renamed to 8250_core. This means any existing usage of
the 8259.<xxxx> module parameters or as a kernel command line switch is
now broken, as the 8250_core driver doesn't parse options belonging to
something called "8250".
To solve this, we redefine the module options in a dummy function using
a redefined MODULE_PARAM_PREFX when built into the kernel. In the case
where we're building as a module, we provide an alias to the old 8250
name. The dummy function prevents compiler errors due to global variable
redefinitions that happen as part of the module_param_ macro expansions.
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This could have been either ARCH_S5P64X0 or CPU_S5P6450. Looking at
commit 2555e663b3 ("ARM: S5P64X0: Add UART
serial support for S5P6450") - which added this typo - makes clear this
should be CPU_S5P6450.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The InsydeH2O BIOS (version dated 09/12/2011) has the following in
its pnp resouces for its serial ports:
$ cat /sys/bus/pnp/devices/00:0b/resources
state = active
io disabled
irq disabled
We do not check if the resources are disabled, and create a bogus
ttyS* device. Since commit 835d844d1a (8250_pnp: do pnp probe
before legacy probe) we get a bogus ttyS0, which prevents the legacy
probe from detecting it.
Note, the BIOS can also be upgraded, fixing this problem, but for people
who can't do that, this fix is needed.
Reported-by: Vincent Deffontaines <vincent@gryzor.com>
Tested-by: Vincent Deffontaines <vincent@gryzor.com>
Signed-off-by: Sean Young <sean@mess.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
92a19f9cec introduced a local variable
with the same name as the argument to bcm_uart_do_rx, breaking
compilation. Fix this by renaming the new variable and its uses where
expected.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
I've managed to find an 8 port version of the card 4 port card which was discussed here:
http://marc.info/?l=linux-serial&m=120760744205314&w=2
Looking back at that thread there were two issues in the original patch.
1) The I/O ports for the UARTs are within BAR2 not BAR0. This can been seen in the original post.
2) A serial quirk isn't needed as these cards have no memory in BAR0 which makes pci_plx9050_init just return.
This patch fixes the 4 port support to use BAR2, removes the bogus quirk and adds support for the 8 port card.
$ lspci -vvv -n -s 00:08.0
00:08.0 0780: 10b5:9050 (rev 01)
Subsystem: 10b5:1588
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 17
Region 1: I/O ports at ff00 [size=128]
Region 2: I/O ports at fe00 [size=64]
Region 3: I/O ports at fd00 [size=8]
Capabilities: <access denied>
Kernel driver in use: serial
$ dmesg | grep 0000:00:08.0:
[ 0.083320] pci 0000:00:08.0: [10b5:9050] type 0 class 0x000780
[ 0.083355] pci 0000:00:08.0: reg 14: [io 0xff00-0xff7f]
[ 0.083369] pci 0000:00:08.0: reg 18: [io 0xfe00-0xfe3f]
[ 0.083382] pci 0000:00:08.0: reg 1c: [io 0xfd00-0xfd07]
[ 0.083460] pci 0000:00:08.0: PME# supported from D0 D3hot
[ 1.212867] 0000:00:08.0: ttyS4 at I/O 0xfe00 (irq = 17) is a 16550A
[ 1.233073] 0000:00:08.0: ttyS5 at I/O 0xfe08 (irq = 17) is a 16550A
[ 1.253270] 0000:00:08.0: ttyS6 at I/O 0xfe10 (irq = 17) is a 16550A
[ 1.273468] 0000:00:08.0: ttyS7 at I/O 0xfe18 (irq = 17) is a 16550A
[ 1.293666] 0000:00:08.0: ttyS8 at I/O 0xfe20 (irq = 17) is a 16550A
[ 1.313863] 0000:00:08.0: ttyS9 at I/O 0xfe28 (irq = 17) is a 16550A
[ 1.334061] 0000:00:08.0: ttyS10 at I/O 0xfe30 (irq = 17) is a 16550A
[ 1.354258] 0000:00:08.0: ttyS11 at I/O 0xfe38 (irq = 17) is a 16550A
Signed-off-by: Scott Ashcroft <scott.ashcroft@talk21.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for Altera 8250/16550 compatible serial port.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the extra code left over when the serial driver was changed
to require a clock. There is no fallback to 24Mhz as a clock is
now required.
Also remove a second call to of_clk_get which is unnecessary.
Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mpc512x platform clock code names PSC clocks as "pscX_mclk" but
the driver tries to get "pscX_clk" clock and this results in
errors like:
mpc52xx-psc-uart 80011700.psc: Failed to get PSC clock entry!
The problem appears when opening ttyPSC devices other than the
system's serial console. Since getting and enabling the PSC clock
fails, uart port startup doesn't succeed and tty flag TTY_IO_ERROR
remains set causing further errors in tty ioctls, i.e.
'strace stty -F /dev/ttyPSC1' shows:
open("/dev/ttyPSC1", O_RDONLY|O_NONBLOCK|O_LARGEFILE) = 3
dup2(3, 0) = 0
close(3) = 0
fcntl64(0, F_GETFL) = 0x10800 (flags O_RDONLY|O_NONBLOCK|O_LARGEFILE)
fcntl64(0, F_SETFL, O_RDONLY|O_LARGEFILE) = 0
ioctl(0, TCGETS, 0xbff89038) = -1 EIO (Input/output error)
Only request PSC clock names that the platform actually provides.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If you open a pipe for neither read nor write, the pipe code will not
add any usage counters to the pipe, causing the 'struct pipe_inode_info"
to be potentially released early.
That doesn't normally matter, since you cannot actually use the pipe,
but the pipe release code - particularly fasync handling - still expects
the actual pipe infrastructure to all be there. And rather than adding
NULL pointer checks, let's just disallow this case, the same way we
already do for the named pipe ("fifo") case.
This is ancient going back to pre-2.4 days, and until trinity, nobody
naver noticed.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The definitions have move around recently, causing build errors
in spear3xx for all configurations:
spear3xx.c:47:5: error: 'PL080_BSIZE_16' undeclared here (not in a function)
spear3xx.c:47:23: error: 'PL080_CONTROL_SB_SIZE_SHIFT' undeclared here (not in a function)
spear3xx.c:48:22: error: 'PL080_CONTROL_DB_SIZE_SHIFT' undeclared here (not in a function)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alessandro Rubini <rubini@gnudd.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
This fixes CVE-2013-1792.
There is a race in install_user_keyrings() that can cause a NULL pointer
dereference when called concurrently for the same user if the uid and
uid-session keyrings are not yet created. It might be possible for an
unprivileged user to trigger this by calling keyctl() from userspace in
parallel immediately after logging in.
Assume that we have two threads both executing lookup_user_key(), both
looking for KEY_SPEC_USER_SESSION_KEYRING.
THREAD A THREAD B
=============================== ===============================
==>call install_user_keyrings();
if (!cred->user->session_keyring)
==>call install_user_keyrings()
...
user->uid_keyring = uid_keyring;
if (user->uid_keyring)
return 0;
<==
key = cred->user->session_keyring [== NULL]
user->session_keyring = session_keyring;
atomic_inc(&key->usage); [oops]
At the point thread A dereferences cred->user->session_keyring, thread B
hasn't updated user->session_keyring yet, but thread A assumes it is
populated because install_user_keyrings() returned ok.
The race window is really small but can be exploited if, for example,
thread B is interrupted or preempted after initializing uid_keyring, but
before doing setting session_keyring.
This couldn't be reproduced on a stock kernel. However, after placing
systemtap probe on 'user->session_keyring = session_keyring;' that
introduced some delay, the kernel could be crashed reliably.
Fix this by checking both pointers before deciding whether to return.
Alternatively, the test could be done away with entirely as it is checked
inside the mutex - but since the mutex is global, that may not be the best
way.
Signed-off-by: David Howells <dhowells@redhat.com>
Reported-by: Mateusz Guzik <mguzik@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <james.l.morris@oracle.com>
In 4f6a7e5ee1 we effectively dropped support
for the legacy encoding for the OSDMap and incremental. However, we didn't
fix the decoding for the pgid.
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Yehuda Sadeh <yehuda@inktank.com>
This patch adds #dma-cells property to PL330 DMA controller nodes for
supporting generic dma dt bindings on SOCFPGA platform. #dma-channels
and #dma-requests are not required now but added in advance.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The first four patches:
89c58c1 rtc: rtc-mv: Add support for clk to avoid lockups
de88747 gpio: mvebu: Add clk support to prevent lockup
7bf5b40 ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
93fff4c ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
are Cc'd to stable since they were held over from the previous merge window.
The rest are a small collection of fixes and a couple of devicetree conversion
catchups.
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Merge tag 'mvebu_fixes_for_v3.9' of git://git.infradead.org/users/jcooper/linux into fixes
mvebu fixes for v3.9 from Jason Cooper <jason@lakedaemon.net>:
The first four patches:
89c58c1 rtc: rtc-mv: Add support for clk to avoid lockups
de88747 gpio: mvebu: Add clk support to prevent lockup
7bf5b40 ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
93fff4c ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
are Cc'd to stable since they were held over from the previous merge window.
The rest are a small collection of fixes and a couple of devicetree conversion
catchups.
* tag 'mvebu_fixes_for_v3.9' of git://git.infradead.org/users/jcooper/linux:
arm: mach-orion5x: fix typo in compatible string of a .dts file
arm: mvebu: fix address-cells in mpic DT node
arm: plat-orion: fix address decoding when > 4GB is used
arm: mvebu: Reduce reg-io-width with UARTs
ARM: Dove: add RTC device node
arm: mvebu: enable the USB ports on Armada 370 Reference Design board
ARM: dove: drop "select COMMON_CLK_DOVE"
rtc: rtc-mv: Add support for clk to avoid lockups
gpio: mvebu: Add clk support to prevent lockup
ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Fix pll1_sys clk initial status
- Fix a typo in imx DEBUG_LL Kconfig
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Merge tag 'imx-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo <shawn.guo@linaro.org>:
The 2nd take of imx fixes for 3.9:
- Fix pll1_sys clk initial status
- Fix a typo in imx DEBUG_LL Kconfig
* tag 'imx-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: imx: fix typo "DEBUG_IMX50_IMX53_UART"
ARM: imx: pll1_sys should be an initial on clk
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Fix an error caused by incorrect conflict resolution when
applying the patch
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Merge tag 'mxs-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo <shawn.guo@linaro.org>:
The 2nd mxs fixes for 3.9:
- Fix an error caused by incorrect conflict resolution when
applying the patch
* tag 'mxs-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: mxs: cfa10049: Fix fb initialisation function
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
When building a multiplatform kernel, we could end up with a smaller
number of GPIOs than the one required by the platform the kernel was
running on.
Sort the max GPIO number by descending order so that we always take the
highest number required.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 ports; AT/PPP is standard CDC-ACM. The other three (added by this
patch) are QCDM/DIAG, possibly GPS, and unknown.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
when making commit e574d57 (usb: musb: fix
compile warning) I forgot to git add this
part of the patch which ended up introducing
a possible build error.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It's redundant since linux/acpi.h has include it when CONFIG_ACPI enabled,
and when CONFIG_ACPI disabled it will trigger compiling warning
In file included from drivers/xen/xen-stub.c:28:0:
include/acpi/acpi_drivers.h:103:31:
warning: 'struct acpi_device' declared inside parameter list [enabled by default]
include/acpi/acpi_drivers.h:103:31:
warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
include/acpi/acpi_drivers.h:107:43:
warning: 'struct acpi_pci_root' declared inside parameter list [enabled by default]
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Rob Herring has observed that c81611c4e9 "xen: event channel arrays are
xen_ulong_t and not unsigned long" introduced a compile failure when building
without CONFIG_AEABI:
/tmp/ccJaIZOW.s: Assembler messages:
/tmp/ccJaIZOW.s:831: Error: even register required -- `ldrexd r5,r6,[r4]'
Will Deacon pointed out that this is because OABI does not require even base
registers for 64-bit values. We can avoid this by simply using the existing
atomic64_xchg operation and the same containerof trick as used by the cmpxchg
macros. However since this code is used on memory which is shared with the
hypervisor we require proper atomic instructions and cannot use the generic
atomic64 callbacks (which are based on spinlocks), therefore add a dependency
on !GENERIC_ATOMIC64. Since we already depend on !CPU_V6 there isn't much
downside to this.
While thinking about this we also observed that OABI has different struct
alignment requirements to EABI, which is a problem for hypercall argument
structs which are shared with the hypervisor and which must be in EABI layout.
Since I don't expect people to want to run OABI kernels on Xen depend on
CONFIG_AEABI explicitly too (although it also happens to be enforced by the
!GENERIC_ATOMIC64 requirement too).
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Rob Herring <robherring2@gmail.com>
Acked-by: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
As pointed out by Dan Carpenper in
<http://driverdev.linuxdriverproject.org/pipermail/devel/2013-February/036025.html>,
the dt9812 comedi driver's use of the `chanspec` member of `struct
comedi_insn` as a channel number is incorrect. Change it to use
`CR_CHAN(insn->chanspec)` as the channel number (where `insn` is a
pointer to the `struct comedi_insn` being processed).
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org> # 3.8 onwards
Cc: Anders Blomdell <anders.blomdell@control.lth.se>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
