Nicolas Pitre [Sat, 29 Nov 2014 02:19:42 +0000 (03:19 +0100)]
ARM: 8240/1: MCPM: document mcpm_sync_init()
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jungseung Lee [Sat, 29 Nov 2014 02:03:51 +0000 (03:03 +0100)]
ARM: 8239/1: Introduce {set,clear}_pte_bit
Introduce helper functions for pte_mk* functions and it would be
used to change individual bits in ptes at times.
Signed-off-by: Jungseung Lee <js07.lee@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jungseung Lee [Sat, 29 Nov 2014 02:02:11 +0000 (03:02 +0100)]
ARM: 8238/1: mm: Refine set_memory_* functions
set_memory_* functions have same implementation
except memory attribute.
This patch makes to use common function for these, and pull out
the functions into arch/arm/mm/pageattr.c like arm64 did.
It will reduce code size and enhance the readability.
Signed-off-by: Jungseung Lee <js07.lee@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jungseung Lee [Sat, 29 Nov 2014 01:54:27 +0000 (02:54 +0100)]
ARM: 8237/1: fix flush_pfn_alias
L1_CACHE_BYTES could be larger than real L1 cache line size.
In that case, flush_pfn_alias() would omit to flush last bytes
as much as L1_CACHE_BYTES - real cache line size.
So fix end address to "to + PAGE_SIZE - 1". The bottom bits of the address
is LINELEN. that is ignored by mcrr.
Signed-off-by: Jungseung Lee <js07.lee@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jungseung Lee [Sat, 29 Nov 2014 01:51:49 +0000 (02:51 +0100)]
ARM: 8236/1: mm: fix discard_old_kernel_data
L1_CACHE_BYTES could be larger value than real L1 cache line size.
In that case, discard_old_kernel_data() would omit to invalidate
last bytes as much as L1_CACHE_BYTES - real cache line size.
So fix end address to "to + PAGE_SIZE -1". The bottom bits
of the address is LINELEN. that is ignored by mcrr.
Signed-off-by: Jungseung Lee <js07.lee@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jungseung Lee [Sat, 29 Nov 2014 01:33:30 +0000 (02:33 +0100)]
ARM: 8235/1: Support for the PXN CPU feature on ARMv7
Modern ARMv7-A/R cores optionally implement below new
hardware feature:
- PXN:
Privileged execute-never(PXN) is a security feature. PXN bit
determines whether the processor can execute software from
the region. This is effective solution against ret2usr attack.
On an implementation that does not include the LPAE, PXN is
optionally supported.
This patch set PXN bit on user page table for preventing
user code execution with privilege mode.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jungseung Lee <js07.lee@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dmitry Eremin-Solenikov [Sat, 22 Nov 2014 13:48:15 +0000 (14:48 +0100)]
ARM: 8218/1: warn if bad IRQ was scheduled
If somebody causes an unexpected bad IRQ, this even will be unnoticed in
both dmesg and system logs. If the "bad" IRQ is stuck, the device will
just hang silently w/o reporting anything. Compare this to the generic
behaviour (from include/asm-generic/hardirq.h) which prints a message
with critical level. So to help everybody, include the same message into
ARM-specific ack_bad_irq().
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dmitry Eremin-Solenikov [Fri, 21 Nov 2014 15:26:29 +0000 (16:26 +0100)]
ARM: 8217/1: sa1100 collie: use gpio-charger instead of pda-power
Use gpio-charger driver instead of pda-power: it automatically cares
about used gpio and since collie does not differentiate between usb and
ac chargers, pda-power is an overkill for it.
As a bonus this allows us to remove gpio_to_irq calls from machine init
call - it is fragile. These gpio_to_irq calls will fail if gpios are
registered later, via device driver mechanisms.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Lin Yongting [Wed, 26 Nov 2014 13:38:33 +0000 (14:38 +0100)]
ARM: 8225/1: Add unwinding support for memory copy functions
The memory copy functions(memcpy, __copy_from_user, __copy_to_user)
never had unwinding annotations added. Currently, when accessing
invalid pointer by these functions occurs the backtrace shown will
stop at these functions or some completely unrelated function.
Add unwinding annotations in hopes of getting a more useful backtrace
in following cases:
1. die on accessing invalid pointer by these functions
2. kprobe trapped at any instruction within these functions
3. interrupted at any instruction within these functions
Signed-off-by: Lin Yongting <linyongting@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Lin Yongting [Wed, 26 Nov 2014 13:36:15 +0000 (14:36 +0100)]
ARM: 8224/1: Add unwinding support for memmove function
The memmove function never had unwinding annotations added.
Currently, when accessing invalid pointer by memmove occurs the
backtrace shown will stop at memmove or some completely unrelated
function. Add unwinding annotations in hopes of getting a more
useful backtrace in following cases:
1. die on accessing invalid pointer by memmove
2. kprobe trapped at any instruction within memmove
3. interrupted at any instruction within memmove
Signed-off-by: Lin Yongting <linyongting@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Lin Yongting [Wed, 26 Nov 2014 13:33:49 +0000 (14:33 +0100)]
ARM: 8223/1: Add unwinding support for __memzero function
The __memzero function never had unwinding annotations added.
Currently, when accessing invalid pointer by __memzero occurs the
backtrace shown will stop at __memzero or some completely unrelated
function. Add unwinding annotations in hopes of getting a more
useful backtrace in following cases:
1. die on accessing invalid pointer by __memzero
2. kprobe trapped at any instruction within __memzero
3. interrupted at any instruction within __memzero
Signed-off-by: Lin Yongting <linyongting@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 28 Oct 2014 13:31:04 +0000 (13:31 +0000)]
ARM: io.c: clean up EXPORT_SYMBOL()s
Place EXPORT_SYMBOL()s after the function definition.
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 28 Oct 2014 13:26:48 +0000 (13:26 +0000)]
ARM: move ftrace assembly code to separate file
The ftrace assembly code doesn't need to live in entry-common.S and
be surrounded with #ifdef CONFIG_FUNCTION_TRACER. Instead, move it
to its own file and conditionally assemble it.
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 28 Oct 2014 12:40:26 +0000 (12:40 +0000)]
ARM: add machine name to stack dump output
The generic dump_stack() code provides the facility to include the
machine name in the stack dump, which can be useful information. Add
a call to dump_stack_set_arch_desc() for the generic code to print
this information.
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 28 Oct 2014 12:13:59 +0000 (12:13 +0000)]
ARM: remove "SMP: Total of %d processors activated." message
The "SMP: Total of %d processors activated." message which we print in
smp_cpus_done() provides no further information than the message in
genreic code in smp_announce(). Kill it.
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 28 Oct 2014 12:08:34 +0000 (12:08 +0000)]
ARM: reduce "Booted secondary processor" message to debug level
Drop the "CPUn: Booted secondary processor" message from info to debug
level. We later print how many CPUs came online, so listing each one
is redundant, and when using hotplug, can be quite noisy.
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 28 Oct 2014 12:06:55 +0000 (12:06 +0000)]
ARM: drop nwfpe initialisation message from warning to info level
nwfpe's initialisation message is not a warning, it is purely
informational. Print it at the appropriate message level.
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 28 Oct 2014 13:32:35 +0000 (13:32 +0000)]
ARM: use pr_warn_ratelimited() when migrating IRQs
Rather than open coding the printk_ratelimit() check with pr_warn(), use
pr_warn_ratelimited() instead.
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 28 Oct 2014 11:26:42 +0000 (11:26 +0000)]
ARM: convert printk(KERN_* to pr_*
Convert many (but not all) printk(KERN_* to pr_* to simplify the code.
We take the opportunity to join some printk lines together so we don't
split the message across several lines, and we also add a few levels
to some messages which were previously missing them.
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Lin Yongting [Sun, 16 Nov 2014 02:14:58 +0000 (03:14 +0100)]
ARM: 8204/1: Add unwinding support for memset function
The memset function never had unwinding annotations added.
Currently, when accessing NULL pointer by memset occurs the
backtrace shown will stop at memset or some completely unrelated
function. Add unwinding annotations in hopes of getting a more
useful backtrace when accessing NULL pointer by memset, kprobe
or interrupt.
Signed-off-by: Lin Yongting <linyongting@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Will Deacon [Fri, 14 Nov 2014 10:37:34 +0000 (11:37 +0100)]
ARM: 8203/1: mm: try to re-use old ASID assignments following a rollover
Rather than unconditionally allocating a fresh ASID to an mm from an
older generation, attempt to re-use the old assignment where possible.
This can bring performance benefits on systems where the ASID is used to
tag things other than the TLB (e.g. branch prediction resources).
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Stephen Boyd [Thu, 20 Nov 2014 19:29:09 +0000 (20:29 +0100)]
ARM: 8215/1: vfp: Silence mvfr0 variable unused warning
Stephen Rothwell reports that commit
3f4c9f8f0a20 ("ARM: 8197/1:
vfp: Fix VFPv3 hwcap detection on CPUID based cpus") introduced a
variable unused warning.
arch/arm/vfp/vfpmodule.c: In function 'vfp_init':
arch/arm/vfp/vfpmodule.c:725:6: warning: unused variable 'mvfr0'
[-Wunused-variable]
u32 mvfr0;
Silence this warning by using IS_ENABLED instead of ifdefs.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Stephen Boyd [Mon, 10 Nov 2014 20:56:41 +0000 (21:56 +0100)]
ARM: 8197/1: vfp: Fix VFPv3 hwcap detection on CPUID based cpus
The subarchitecture field in the fpsid register is 7 bits wide on
ARM CPUs using the CPUID identification scheme, spanning bits 22
to 16. The topmost bit is used to designate that the
subarchitecture designer is not ARM when it is set to 1. On
non-CPUID scheme CPUs the subarchitecture field is only 4 bits
wide and the higher bits are used to indicate no double precision
support (bit 20) and the FTSMX/FLDMX format (bits 21-22).
The VFP support code only looks at bits 19-16 to determine the
VFP version. On Qualcomm's processors (Krait and Scorpion) we
should see that we have HWCAP_VFPv3 but we don't because bit 22
is set to 1 to indicate that the subarchitecture is not
implemented by ARM and the rest of the bits are left as 0 because
this is the first subarchitecture that Qualcomm has designed.
Unfortunately we can't just widen the FPSID subarchitecture
bitmask to consider all the bits on a CPUID scheme because there
may be CPUs without the CPUID scheme that have VFP without double
precision support and then the version would be a very wrong and
large number. Instead, update the version detection logic to
consider if the CPU is using the CPUID scheme.
If the CPU is using CPUID scheme, use the MVFR registers to
determine what version of VFP is supported. We already do this
for VFPv4, so do something similar for VFPv3 and look for single
or double precision support in MVFR0. Otherwise fall back to
using FPSID to detect VFP support on non-CPUID scheme CPUs. We
know that VFPv3 is only present in CPUs that have support for the
CPUID scheme so this should be equivalent.
Tested-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Stephen Boyd [Mon, 10 Nov 2014 20:56:40 +0000 (21:56 +0100)]
ARM: 8196/1: vfp: Workaround bad MVFR1 register on some Kraits
Certain versions of the Krait processor don't report that they
support the fused multiply accumulate instruction via the MVFR1
register despite the fact that they actually do. Unfortunately we
use this register to identify support for VFPv4. Override the
hwcap on all Krait processors to indicate support for VFPv4 to
workaround this.
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Stepan Moskovchenko [Mon, 10 Nov 2014 20:56:42 +0000 (21:56 +0100)]
ARM: 8195/1: vfp: Bounce undefined instructions in vectored mode
Certain ARM CPU implementations (e.g. Cortex-A15) may not raise a
floating- point exception whenever deprecated short-vector VFP
instructions are executed. Instead these instructions are treated
as UNALLOCATED. Change the VFP exception handling code to emulate
short-vector instructions even if FPEXC exception bits are not
set.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Yalin Wang [Thu, 6 Nov 2014 02:40:07 +0000 (03:40 +0100)]
ARM: 8194/1: remove clear_thread_flag(TIF_UPROBE)
This patch remove clear_thread_flag(TIF_UPROBE) in do_work_pending(),
because uprobe_notify_resume() have do this.
Signed-off-by: Yalin Wang <yalin.wang@sonymobile.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Behan Webster [Fri, 26 Sep 2014 23:31:10 +0000 (00:31 +0100)]
ARM: 8176/1: Use current_stack_pointer in unwind_backtrace
Use the global current_stack_pointer to get the value of the stack pointer.
This change supports being able to compile the kernel with both gcc and clang.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Behan Webster [Fri, 26 Sep 2014 23:31:06 +0000 (00:31 +0100)]
ARM: 8175/1: Use current_stack_pointer to calculate pt_regs address
Use the global current_stack_pointer to calculate the end of the stack for
current_pt_regs()
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Mark Charlebois [Fri, 26 Sep 2014 23:31:05 +0000 (00:31 +0100)]
ARM: 8174/1: Use global stack register variable for percpu
Using global current_stack_pointer works on both clang and gcc.
current_stack_pointer is an unsigned long and needs to be cast
as a pointer to dereference.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Behan Webster [Fri, 26 Sep 2014 23:31:09 +0000 (00:31 +0100)]
ARM: 8173/1: Calculate current_thread_info from current_stack_pointer
Use the global current_stack_pointer to get the value of the stack pointer.
This change supports being able to compile the kernel with both gcc and clang.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Behan Webster [Fri, 26 Sep 2014 23:31:08 +0000 (00:31 +0100)]
ARM: 8172/1: Use current_stack_pointer in save_stack_trace_tsk
Use the global current_stack_pointer to get the value of the stack pointer.
This change supports being able to compile the kernel with both gcc and clang.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Behan Webster [Fri, 26 Sep 2014 23:31:07 +0000 (00:31 +0100)]
ARM: 8171/1: Use current_stack_pointer for return_address
Use the global current_stack_pointer to get the value of the stack pointer.
This change supports being able to compile the kernel with both gcc and Clang.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Behan Webster [Fri, 26 Sep 2014 23:31:04 +0000 (00:31 +0100)]
ARM: 8170/1: Add global named register current_stack_pointer for ARM
Define a global named register for current_stack_pointer. The use of this new
variable guarantees that both gcc and clang can access this register in C code.
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Tue, 28 Oct 2014 15:27:07 +0000 (15:27 +0000)]
ARM: enable bpf syscall
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Mon, 20 Oct 2014 01:08:38 +0000 (18:08 -0700)]
Linux 3.18-rc1
Linus Torvalds [Mon, 20 Oct 2014 00:43:06 +0000 (17:43 -0700)]
Merge tag 'arm-soc-fixes-rc1' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A batch of fixes that have come in during the merge window.
Some of them are defconfig updates for things that have now landed,
some errata additions and a few general scattered fixes.
There's also a qcom DT update that adds support for SATA on AP148, and
basic support for Sony Xperia Z1 and CM-QS600 platforms that seemed
isolated enough that we could merge it even if it's late"
* tag 'arm-soc-fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
MAINTAINERS: corrected bcm2835 search
ARM: dts: Explicitly set dr_mode on exynos5420-arndale-octa
ARM: dts: Explicitly set dr_mode on exynos Peach boards
ARM: dts: qcom: add CM-QS600 board
ARM: dts: qcom: Add initial DTS file for Sony Xperia Z1 phone
ARM: dts: qcom: Add SATA support on IPQ8064/AP148
MAINTAINERS: Update Santosh Shilimkar's email id
ARM: sunxi_defconfig: enable CONFIG_REGULATOR
ARM: dts: Disable smc91x on n900 until bootloader dependency is removed
ARM: omap2plus_defconfig: Enable ARM erratum 430973 for omap3
ARM: exynos_defconfig: enable USB gadget support
ARM: exynos_defconfig: Enable Maxim 77693 and I2C GPIO drivers
ARM: mm: Fix ifdef around cpu_*_do_[suspend, resume] ops
ARM: EXYNOS: Fix build with PM_SLEEP=n and ARM_EXYNOS_CPUIDLE=n
ARM: SAMSUNG: Restore Samsung PM Debug functionality
ARM: dts: Fix pull setting in sd4_width8 pin group for exynos4x12
ARM: exynos_defconfig: Enable SBS battery support
ARM: exynos_defconfig: Enable Control Groups support
ARM: exynos_defconfig: Enable Atmel maXTouch support
ARM: exynos_defconfig: Enable MAX77802
Linus Torvalds [Sun, 19 Oct 2014 23:25:56 +0000 (16:25 -0700)]
Merge git://git.infradead.org/users/eparis/audit
Pull audit updates from Eric Paris:
"So this change across a whole bunch of arches really solves one basic
problem. We want to audit when seccomp is killing a process. seccomp
hooks in before the audit syscall entry code. audit_syscall_entry
took as an argument the arch of the given syscall. Since the arch is
part of what makes a syscall number meaningful it's an important part
of the record, but it isn't available when seccomp shoots the
syscall...
For most arch's we have a better way to get the arch (syscall_get_arch)
So the solution was two fold: Implement syscall_get_arch() everywhere
there is audit which didn't have it. Use syscall_get_arch() in the
seccomp audit code. Having syscall_get_arch() everywhere meant it was
a useless flag on the stack and we could get rid of it for the typical
syscall entry.
The other changes inside the audit system aren't grand, fixed some
records that had invalid spaces. Better locking around the task comm
field. Removing some dead functions and structs. Make some things
static. Really minor stuff"
* git://git.infradead.org/users/eparis/audit: (31 commits)
audit: rename audit_log_remove_rule to disambiguate for trees
audit: cull redundancy in audit_rule_change
audit: WARN if audit_rule_change called illegally
audit: put rule existence check in canonical order
next: openrisc: Fix build
audit: get comm using lock to avoid race in string printing
audit: remove open_arg() function that is never used
audit: correct AUDIT_GET_FEATURE return message type
audit: set nlmsg_len for multicast messages.
audit: use union for audit_field values since they are mutually exclusive
audit: invalid op= values for rules
audit: use atomic_t to simplify audit_serial()
kernel/audit.c: use ARRAY_SIZE instead of sizeof/sizeof[0]
audit: reduce scope of audit_log_fcaps
audit: reduce scope of audit_net_id
audit: arm64: Remove the audit arch argument to audit_syscall_entry
arm64: audit: Add audit hook in syscall_trace_enter/exit()
audit: x86: drop arch from __audit_syscall_entry() interface
sparc: implement is_32bit_task
sparc: properly conditionalize use of TIF_32BIT
...
Olof Johansson [Sun, 19 Oct 2014 20:39:08 +0000 (13:39 -0700)]
Merge tag 'qcom-dt-for-3.18-3' of git://git./linux/kernel/git/galak/linux-qcom into fixes
Merge "qcom DT changes for v3.18-3" from Kumar Gala:
Qualcomm ARM Based Device Tree Updates for v3.18-3
* Added Board support for CM-QS600 and Sony Xperia Z1 phone
* Added SATA support on IPQ8064/AP148
* tag 'qcom-dt-for-3.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom:
ARM: dts: qcom: add CM-QS600 board
ARM: dts: qcom: Add initial DTS file for Sony Xperia Z1 phone
ARM: dts: qcom: Add SATA support on IPQ8064/AP148
Olof Johansson [Sun, 19 Oct 2014 20:34:52 +0000 (13:34 -0700)]
Merge tag 'samsung-fixes-2' of git://git./linux/kernel/git/kgene/linux-samsung into fixes
Pull more fixes from Kukjin Kim:
2nd Samsung fixes for v3.18
- Explicitly set dr_mode on exynos5800-peach-pi, exynos5420-peach-pit
and exynos5420-arndale-octa boards, because the USB dwc3 controller
will not work properly without dr_mode as host on above boards if
the USB host and gadget are enabled in kernel configuration both.
* tag 'samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: dts: Explicitly set dr_mode on exynos5420-arndale-octa
ARM: dts: Explicitly set dr_mode on exynos Peach boards
Signed-off-by: Olof Johansson <olof@lixom.net>
Scott Branden [Fri, 17 Oct 2014 03:57:16 +0000 (21:57 -0600)]
MAINTAINERS: corrected bcm2835 search
Corrected bcm2835 maintainer info by using N: to specify any files with
bcm2835 in are directed to the proper maintainer.
Also corrected minor mispelling of ARCHITECTURE in 2 comment locations.
Signed-off-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Torvalds [Sun, 19 Oct 2014 19:58:22 +0000 (12:58 -0700)]
Merge tag 'ntb-3.18' of git://github.com/jonmason/ntb
Pull ntb (non-transparent bridge) updates from Jon Mason:
"Add support for Haswell NTB split BARs, a debugfs entry for basic
debugging info, and some code clean-ups"
* tag 'ntb-3.18' of git://github.com/jonmason/ntb:
ntb: Adding split BAR support for Haswell platforms
ntb: use errata flag set via DID to implement workaround
ntb: conslidate reading of PPD to move platform detection earlier
ntb: move platform detection to separate function
NTB: debugfs device entry
Linus Torvalds [Sun, 19 Oct 2014 19:50:44 +0000 (12:50 -0700)]
Merge branch 'i2c/for-next' of git://git./linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Highlights from the I2C subsystem for 3.18:
- new drivers for Axxia AM55xx, and Hisilicon hix5hd2 SoC.
- designware driver gained AMD support, exynos gained exynos7 support
The rest is usual driver stuff. Hopefully no lowlights this time"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i801: Add Device IDs for Intel Sunrise Point PCH
i2c: hix5hd2: add i2c controller driver
i2c-imx: Disable the clock on probe failure
i2c: designware: Add support for AMD I2C controller
i2c: designware: Rework probe() to get clock a bit later
i2c: designware: Default to fast mode in case of ACPI
i2c: axxia: Add I2C driver for AXM55xx
i2c: exynos: add support for HSI2C module on Exynos7
i2c: mxs: detect No Slave Ack on SELECT in PIO mode
i2c: cros_ec: Remove EC_I2C_FLAG_10BIT
i2c: cros-ec-tunnel: Add of match table
i2c: rcar: remove sign-compare flaw
i2c: ismt: Use minimum descriptor size
i2c: imx: Add arbitration lost check
i2c: rk3x: Remove unlikely() annotations
i2c: rcar: check for no IRQ in rcar_i2c_irq()
i2c: rcar: make rcar_i2c_prepare_msg() *void*
i2c: rcar: simplify check for last message
i2c: designware: add support of platform data to set I2C mode
i2c: designware: add support of I2C standard mode
Linus Torvalds [Sun, 19 Oct 2014 19:45:36 +0000 (12:45 -0700)]
Merge tag 'sound-fix-3.18-rc1' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a collection of small fixes after 3.18 merge.
The urgent one is the fix for kernel panics with linked PCM substream
triggered by the recent nonatomic PCM ops support. Other two fixes
(emu10k1 and bebob) are stable fixes, and one easy PCI ID addition for
a new Intel HD-audio controller"
* tag 'sound-fix-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda_intel: Add Device IDs for Intel Sunrise Point PCH
ALSA: emu10k1: Fix deadlock in synth voice lookup
ALSA: pcm: Fix referred substream in snd_pcm_action_group() unlock loop
ALSA: bebob: Fix failure to detect source of clock for Terratec Phase 88
Linus Torvalds [Sun, 19 Oct 2014 19:40:24 +0000 (12:40 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull second round of input updates from Dmitry Torokhov:
"Mostly simple bug fixes, although we do have one brand new driver for
Microchip AR1021 i2c touchscreen.
Also there is the change to stop trying to use i8042 active
multiplexing by default (it is still possible to activate it via
i8042.nomux=0 on boxes that implement it)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - add Thrustmaster as Xbox 360 controller vendor
Input: xpad - add USB ID for Thrustmaster Ferrari 458 Racing Wheel
Input: max77693-haptic - fix state check in imax77693_haptic_disable()
Input: xen-kbdfront - free grant table entry in xenkbd_disconnect_backend
Input: alps - fix v4 button press recognition
Input: i8042 - disable active multiplexing by default
Input: i8042 - add noloop quirk for Asus X750LN
Input: synaptics - gate forcepad support by DMI check
Input: Add Microchip AR1021 i2c touchscreen
Input: cros_ec_keyb - add of match table
Input: serio - avoid negative serio device numbers
Input: avoid negative input device numbers
Input: automatically set EV_ABS bit in input_set_abs_params
Input: adp5588-keys - cancel workqueue in failure path
Input: opencores-kbd - switch to using managed resources
Input: evdev - fix EVIOCG{type} ioctl
Linus Torvalds [Sun, 19 Oct 2014 19:29:23 +0000 (12:29 -0700)]
Merge tag 'rdma-for-linus' of git://git./linux/kernel/git/roland/infiniband
Pull infiniband/RDMA updates from Roland Dreier:
- large set of iSER initiator improvements
- hardware driver fixes for cxgb4, mlx5 and ocrdma
- small fixes to core midlayer
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (47 commits)
RDMA/cxgb4: Fix ntuple calculation for ipv6 and remove duplicate line
RDMA/cxgb4: Add missing neigh_release in find_route
RDMA/cxgb4: Take IPv6 into account for best_mtu and set_emss
RDMA/cxgb4: Make c4iw_wr_log_size_order static
IB/core: Fix XRC race condition in ib_uverbs_open_qp
IB/core: Clear AH attr variable to prevent garbage data
RDMA/ocrdma: Save the bit environment, spare unncessary parenthesis
RDMA/ocrdma: The kernel has a perfectly good BIT() macro - use it
RDMA/ocrdma: Don't memset() buffers we just allocated with kzalloc()
RDMA/ocrdma: Remove a unused-label warning
RDMA/ocrdma: Convert kernel VA to PA for mmap in user
RDMA/ocrdma: Get vlan tag from ib_qp_attrs
RDMA/ocrdma: Add default GID at index 0
IB/mlx5, iser, isert: Add Signature API additions
Target/iser: Centralize ib_sig_domain setting
IB/iser: Centralize ib_sig_domain settings
IB/mlx5: Use extended internal signature layout
IB/iser: Set IP_CSUM as default guard type
IB/iser: Remove redundant assignment
IB/mlx5: Use enumerations for PI copy mask
...
Linus Torvalds [Sun, 19 Oct 2014 18:55:41 +0000 (11:55 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull more perf updates from Ingo Molnar:
"A second (and last) round of late coming fixes and changes, almost all
of them in perf tooling:
User visible tooling changes:
- Add period data column and make it default in 'perf script' (Jiri
Olsa)
- Add a visual cue for toggle zeroing of samples in 'perf top'
(Taeung Song)
- Improve callchains when using libunwind (Namhyung Kim)
Tooling fixes and infrastructure changes:
- Fix for double free in 'perf stat' when using some specific invalid
command line combo (Yasser Shalabi)
- Fix off-by-one bugs in map->end handling (Stephane Eranian)
- Fix off-by-one bug in maps__find(), also related to map->end
handling (Namhyung Kim)
- Make struct symbol->end be the first addr after the symbol range,
to make it match the convention used for struct map->end. (Arnaldo
Carvalho de Melo)
- Fix perf_evlist__add_pollfd() error handling in 'perf kvm stat
live' (Jiri Olsa)
- Fix python test build by moving callchain_param to an object linked
into the python binding (Jiri Olsa)
- Document sysfs events/ interfaces (Cody P Schafer)
- Fix typos in perf/Documentation (Masanari Iida)
- Add missing 'struct option' forward declaration (Arnaldo Carvalho
de Melo)
- Add option to copy events when queuing for sorting across cpu
buffers and enable it for 'perf kvm stat live', to avoid having
events left in the queue pointing to the ring buffer be rewritten
in high volume sessions. (Alexander Yarygin, improving work done
by David Ahern):
- Do not include a struct hists per perf_evsel, untangling the
histogram code from perf_evsel, to pave the way for exporting a
minimalistic tools/lib/api/perf/ library usable by tools/perf and
initially by the rasd daemon being developed by Borislav Petkov,
Robert Richter and Jean Pihet. (Arnaldo Carvalho de Melo)
- Make perf_evlist__open(evlist, NULL, NULL), i.e. without cpu and
thread maps mean syswide monitoring, reducing the boilerplate for
tools that only want system wide mode. (Arnaldo Carvalho de Melo)
- Move exit stuff from perf_evsel__delete to perf_evsel__exit, delete
should be just a front end for exit + free (Arnaldo Carvalho de
Melo)
- Add support to new style format of kernel PMU event. (Kan Liang)
and other misc fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (45 commits)
perf script: Add period as a default output column
perf script: Add period data column
perf evsel: No need to drag util/cgroup.h
perf evlist: Add missing 'struct option' forward declaration
perf evsel: Move exit stuff from __delete to __exit
kprobes/x86: Remove stale ARCH_SUPPORTS_KPROBES_ON_FTRACE define
perf kvm stat live: Enable events copying
perf session: Add option to copy events when queueing
perf Documentation: Fix typos in perf/Documentation
perf trace: Use thread_{,_set}_priv helpers
perf kvm: Use thread_{,_set}_priv helpers
perf callchain: Create an address space per thread
perf report: Set callchain_param.record_mode for future use
perf evlist: Fix for double free in tools/perf stat
perf test: Add test case for pmu event new style format
perf tools: Add support to new style format of kernel PMU event
perf tools: Parse the pmu event prefix and suffix
Revert "perf tools: Default to cpu// for events v5"
perf Documentation: Remove Ruplicated docs for powerpc cpu specific events
perf Documentation: sysfs events/ interfaces
...
Linus Torvalds [Sun, 19 Oct 2014 18:46:09 +0000 (11:46 -0700)]
Merge git://git./linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
"Here we have two bug fixes:
1) The current thread's fault_code is not setup properly upon entry to
do_sparc64_fault() in some paths, leading to spurious SIGBUS.
2) Don't use a zero length array at the end of thread_info on sparc64,
otherwise end_of_stack() isn't right"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Do not define thread fpregs save area as zero-length array.
sparc64: Fix corrupted thread fault code.
Linus Torvalds [Sun, 19 Oct 2014 18:41:57 +0000 (11:41 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"A quick batch of bug fixes:
1) Fix build with IPV6 disabled, from Eric Dumazet.
2) Several more cases of caching SKB data pointers across calls to
pskb_may_pull(), thus referencing potentially free'd memory. From
Li RongQing.
3) DSA phy code tests operation presence improperly, instead of going:
if (x->ops->foo)
r = x->ops->foo(args);
it was going:
if (x->ops->foo(args))
r = x->ops->foo(args);
Fix from Andew Lunn"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
Net: DSA: Fix checking for get_phy_flags function
ipv6: fix a potential use after free in sit.c
ipv6: fix a potential use after free in ip6_offload.c
ipv4: fix a potential use after free in gre_offload.c
tcp: fix build error if IPv6 is not enabled
Andrew Lunn [Sun, 19 Oct 2014 14:41:47 +0000 (16:41 +0200)]
Net: DSA: Fix checking for get_phy_flags function
The check for the presence or not of the optional switch function
get_phy_flags() called the function, rather than checked to see if it
is a NULL pointer. This causes a derefernce of a NULL pointer on all
switch chips except the sf2, the only switch to implement this call.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Fixes:
6819563e646a ("net: dsa: allow switch drivers to specify phy_device::dev_flags")
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 19 Oct 2014 03:12:33 +0000 (23:12 -0400)]
sparc64: Do not define thread fpregs save area as zero-length array.
This breaks the stack end corruption detection facility.
What that facility does it write a magic value to "end_of_stack()"
and checking to see if it gets overwritten.
"end_of_stack()" is "task_thread_info(p) + 1", which for sparc64 is
the beginning of the FPU register save area.
So once the user uses the FPU, the magic value is overwritten and the
debug checks trigger.
Fix this by making the size explicit.
Due to the size we use for the fpsaved[], gsr[], and xfsr[] arrays we
are limited to 7 levels of FPU state saves. So each FPU register set
is 256 bytes, allocate 256 * 7 for the fpregs area.
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 19 Oct 2014 03:03:09 +0000 (23:03 -0400)]
sparc64: Fix corrupted thread fault code.
Every path that ends up at do_sparc64_fault() must install a valid
FAULT_CODE_* bitmask in the per-thread fault code byte.
Two paths leading to the label winfix_trampoline (which expects the
FAULT_CODE_* mask in register %g4) were not doing so:
1) For pre-hypervisor TLB protection violation traps, if we took
the 'winfix_trampoline' path we wouldn't have %g4 initialized
with the FAULT_CODE_* value yet. Resulting in using the
TLB_TAG_ACCESS register address value instead.
2) In the TSB miss path, when we notice that we are going to use a
hugepage mapping, but we haven't allocated the hugepage TSB yet, we
still have to take the window fixup case into consideration and
in that particular path we leave %g4 not setup properly.
Errors on this sort were largely invisible previously, but after
commit
4ccb9272892c33ef1c19a783cfa87103b30c2784 ("sparc64: sun4v TLB
error power off events") we now have a fault_code mask bit
(FAULT_CODE_BAD_RA) that triggers due to this bug.
FAULT_CODE_BAD_RA triggers because this bit is set in TLB_TAG_ACCESS
(see #1 above) and thus we get seemingly random bus errors triggered
for user processes.
Fixes:
4ccb9272892c ("sparc64: sun4v TLB error power off events")
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 19 Oct 2014 01:11:04 +0000 (18:11 -0700)]
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul:
"For dmaengine contributions we have:
- designware cleanup by Andy
- my series moving device_control users to dmanegine_xxx APIs for
later removal of device_control API
- minor fixes spread over drivers mainly mv_xor, pl330, mmp, imx-sdma
etc"
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (60 commits)
serial: atmel: add missing dmaengine header
dmaengine: remove FSLDMA_EXTERNAL_START
dmaengine: freescale: remove FSLDMA_EXTERNAL_START control method
carma-fpga: move to fsl_dma_external_start()
carma-fpga: use dmaengine_xxx() API
dmaengine: freescale: add and export fsl_dma_external_start()
dmaengine: add dmaengine_prep_dma_sg() helper
video: mx3fb: use dmaengine_terminate_all() API
serial: sh-sci: use dmaengine_terminate_all() API
net: ks8842: use dmaengine_terminate_all() API
mtd: sh_flctl: use dmaengine_terminate_all() API
mtd: fsmc_nand: use dmaengine_terminate_all() API
V4L2: mx3_camer: use dmaengine_pause() API
dmaengine: coh901318: use dmaengine_terminate_all() API
pata_arasan_cf: use dmaengine_terminate_all() API
dmaengine: edma: check for echan->edesc => NULL in edma_dma_pause()
dmaengine: dw: export probe()/remove() and Co to users
dmaengine: dw: enable and disable controller when needed
dmaengine: dw: always export dw_dma_{en,dis}able
dmaengine: dw: introduce dw_dma_on() helper
...
Linus Torvalds [Sun, 19 Oct 2014 01:03:02 +0000 (18:03 -0700)]
Merge tag 'fbdev-3.18' of git://git./linux/kernel/git/tomba/linux
Pull fbdev updates from Tomi Valkeinen:
- new 6x10 font
- various small fixes and cleanups
* tag 'fbdev-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (30 commits)
fonts: Add 6x10 font
videomode: provide dummy inline functions for !CONFIG_OF
video/atmel_lcdfb: Introduce regulator support
fbdev: sh_mobile_hdmi: Re-init regs before irq re-enable on resume
framebuffer: fix screen corruption when copying
framebuffer: fix border color
arm, fbdev, omap2, LLVMLinux: Remove nested function from omapfb
arm, fbdev, omap2, LLVMLinux: Remove nested function from omap2 dss
video: fbdev: valkyriefb.c: use container_of to resolve fb_info_valkyrie from fb_info
video: fbdev: pxafb.c: use container_of to resolve pxafb_info/layer from fb_info
video: fbdev: cyber2000fb.c: use container_of to resolve cfb_info from fb_info
video: fbdev: controlfb.c: use container_of to resolve fb_info_control from fb_info
video: fbdev: sa1100fb.c: use container_of to resolve sa1100fb_info from fb_info
video: fbdev: stifb.c: use container_of to resolve stifb_info from fb_info
video: fbdev: sis: sis_main.c: Cleaning up missing null-terminate in conjunction with strncpy
video: valkyriefb: Fix unused variable warning in set_valkyrie_clock()
video: fbdev: use %*ph specifier to dump small buffers
video: mx3fb: always enable BACKLIGHT_LCD_SUPPORT
video: fbdev: au1200fb: delete double assignment
video: fbdev: sis: delete double assignment
...
Linus Torvalds [Sat, 18 Oct 2014 21:32:31 +0000 (14:32 -0700)]
Merge tag 'kvm-arm-for-3.18-take-2' of git://git./linux/kernel/git/kvmarm/kvmarm
Pull second batch of changes for KVM/{arm,arm64} from Marc Zyngier:
"The most obvious thing is the sizeable MMU changes to support 48bit
VAs on arm64.
Summary:
- support for 48bit IPA and VA (EL2)
- a number of fixes for devices mapped into guests
- yet another VGIC fix for BE
- a fix for CPU hotplug
- a few compile fixes (disabled VGIC, strict mm checks)"
[ I'm pulling directly from Marc at the request of Paolo Bonzini, whose
backpack was stolen at Düsseldorf airport and will do new keys and
rebuild his web of trust. - Linus ]
* tag 'kvm-arm-for-3.18-take-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm:
arm/arm64: KVM: Fix BE accesses to GICv2 EISR and ELRSR regs
arm: kvm: STRICT_MM_TYPECHECKS fix for user_mem_abort
arm/arm64: KVM: Ensure memslots are within KVM_PHYS_SIZE
arm64: KVM: Implement 48 VA support for KVM EL2 and Stage-2
arm/arm64: KVM: map MMIO regions at creation time
arm64: kvm: define PAGE_S2_DEVICE as read-only by default
ARM: kvm: define PAGE_S2_DEVICE as read-only by default
arm/arm64: KVM: add 'writable' parameter to kvm_phys_addr_ioremap
arm/arm64: KVM: fix potential NULL dereference in user_mem_abort()
arm/arm64: KVM: use __GFP_ZERO not memset() to get zeroed pages
ARM: KVM: fix vgic-disabled build
arm: kvm: fix CPU hotplug
Linus Torvalds [Sat, 18 Oct 2014 21:24:36 +0000 (14:24 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
"This is the MIPS pull request for the next kernel:
- Zubair's patch series adds CMA support for MIPS. Doing so it also
touches ARM64 and x86.
- remove the last instance of IRQF_DISABLED from arch/mips
- updates to two of the MIPS defconfig files.
- cleanup of how cache coherency bits are handled on MIPS and
implement support for write-combining.
- platform upgrades for Alchemy
- move MIPS DTS files to arch/mips/boot/dts/"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (24 commits)
MIPS: ralink: remove deprecated IRQF_DISABLED
MIPS: pgtable.h: Implement the pgprot_writecombine function for MIPS
MIPS: cpu-probe: Set the write-combine CCA value on per core basis
MIPS: pgtable-bits: Define the CCA bit for WC writes on Ingenic cores
MIPS: pgtable-bits: Move the CCA bits out of the core's ifdef blocks
MIPS: DMA: Add cma support
x86: use generic dma-contiguous.h
arm64: use generic dma-contiguous.h
asm-generic: Add dma-contiguous.h
MIPS: BPF: Add new emit_long_instr macro
MIPS: ralink: Move device-trees to arch/mips/boot/dts/
MIPS: Netlogic: Move device-trees to arch/mips/boot/dts/
MIPS: sead3: Move device-trees to arch/mips/boot/dts/
MIPS: Lantiq: Move device-trees to arch/mips/boot/dts/
MIPS: Octeon: Move device-trees to arch/mips/boot/dts/
MIPS: Add support for building device-tree binaries
MIPS: Create common infrastructure for building built-in device-trees
MIPS: SEAD3: Enable DEVTMPFS
MIPS: SEAD3: Regenerate defconfigs
MIPS: Alchemy: DB1300: Add touch penirq support
...
Linus Torvalds [Sat, 18 Oct 2014 21:22:32 +0000 (14:22 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mpe/linux
Pull powerpc fix from Michael Ellerman:
"There was a bit of a misunderstanding between us and the ARM guys in
the device tree PCI code, which is breaking virtio on powerpc.
This is the minimal fix until we can sort it out properly"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
powerpc/pci: Fix IO space breakage after of_pci_range_to_resource() change
Linus Torvalds [Sat, 18 Oct 2014 20:39:19 +0000 (13:39 -0700)]
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs/smb3 updates from Steve French:
"Improved SMB3 support (symlink and device emulation, and remapping by
default the 7 reserved posix characters) and a workaround for cifs
mounts to Mac (working around a commonly encountered Mac server bug)"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
[CIFS] Remove obsolete comment
Check minimum response length on query_network_interface
Workaround Mac server problem
Remap reserved posix characters by default (part 3/3)
Allow conversion of characters in Mac remap range (part 2)
Allow conversion of characters in Mac remap range. Part 1
mfsymlinks support for SMB2.1/SMB3. Part 2 query symlink
Add mfsymlinks support for SMB2.1/SMB3. Part 1 create symlink
Allow mknod and mkfifo on SMB2/SMB3 mounts
add defines for two new file attributes
Linus Torvalds [Sat, 18 Oct 2014 20:37:19 +0000 (13:37 -0700)]
Merge tag 'dlm-3.18' of git://git./linux/kernel/git/teigland/linux-dlm
Pull dlm fix from David Teigland:
"This includes a single commit fixing a missing endian conversion"
* tag 'dlm-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
dlm: fix missing endian conversion of rcom_status flags
Linus Torvalds [Sat, 18 Oct 2014 20:32:17 +0000 (13:32 -0700)]
Merge branch 'for-linus-update' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs data corruption fix from Chris Mason:
"I'm testing a pull with more fixes, but wanted to get this one out so
Greg can pick it up.
The corruption isn't easy to hit, you have to do a readonly snapshot
and have orphans in the snapshot. But my review and testing missed
the bug. Filipe has added a better xfstest to cover it"
* 'for-linus-update' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Revert "Btrfs: race free update of commit root for ro snapshots"
Linus Torvalds [Sat, 18 Oct 2014 20:25:03 +0000 (13:25 -0700)]
Merge tag 'please-pull-pstore' of git://git./linux/kernel/git/aegl/linux
Pull pstore fix from Tony Luck:
"Ensure unique filenames in pstore"
* tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
pstore: Fix duplicate {console,ftrace}-efi entries
Linus Torvalds [Sat, 18 Oct 2014 19:54:46 +0000 (12:54 -0700)]
Merge git://git./linux/kernel/git/aia21/ntfs
Pull NTFS update from Anton Altaparmakov:
"Here is a small NTFS update notably implementing FIBMAP ioctl for NTFS
by adding the bmap address space operation. People seem to still want
FIBMAP"
* git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs:
NTFS: Bump version to 2.1.31.
NTFS: Add bmap address space operation needed for FIBMAP ioctl.
NTFS: Remove changelog from Documentation/filesystems/ntfs.txt.
NTFS: Split ntfs_aops into ntfs_normal_aops and ntfs_compressed_aops in preparation for them diverging.
Linus Torvalds [Sat, 18 Oct 2014 19:52:08 +0000 (12:52 -0700)]
Merge tag 'nfs-for-3.18-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Highlights include:
Stable fixes:
- fix an uninitialised pointer Oops in the writeback error path
- fix a bogus warning (and early exit from the loop) in nfs_generic_pgio()
Features:
- Add NFSv4.2 SEEK feature and client support for lseek(SEEK_HOLE/SEEK_DATA)
Other fixes:
- pnfs: replace broken pnfs_put_lseg_async
- Remove dead prototype for nfs4_insert_deviceid_node"
* tag 'nfs-for-3.18-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS: Fix a bogus warning in nfs_generic_pgio
NFS: Fix an uninitialised pointer Oops in the writeback error path
NFSv4.1/pnfs: replace broken pnfs_put_lseg_async
NFSv4: Remove dead prototype for nfs4_insert_deviceid_node()
NFS: Implement SEEK
Linus Torvalds [Sat, 18 Oct 2014 19:25:30 +0000 (12:25 -0700)]
Merge tag 'dm-3.18' of git://git./linux/kernel/git/device-mapper/linux-dm
Pull device-mapper updates from Mike Snitzer:
"I rebased the DM tree ontop of linux-block.git's 'for-3.18/core' at
the beginning of October because DM core now depends on the newly
introduced bioset_create_nobvec() interface.
Summary:
- fix DM's long-standing excessive use of memory by leveraging the
new bioset_create_nobvec() interface when creating the DM's bioset
- fix a few bugs in dm-bufio and dm-log-userspace
- add DM core support for a DM multipath use-case that requires
loading DM tables that contain devices that have failed (by
allowing active and inactive DM tables to share dm_devs)
- add discard support to the DM raid target; like MD raid456 the user
must opt-in to raid456 discard support be specifying the
devices_handle_discard_safely=Y module param"
* tag 'dm-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm log userspace: fix memory leak in dm_ulog_tfr_init failure path
dm bufio: when done scanning return from __scan immediately
dm bufio: update last_accessed when relinking a buffer
dm raid: add discard support for RAID levels 4, 5 and 6
dm raid: add discard support for RAID levels 1 and 10
dm: allow active and inactive tables to share dm_devs
dm mpath: stop queueing IO when no valid paths exist
dm: use bioset_create_nobvec()
dm: remove nr_iovecs parameter from alloc_tio()
Linus Torvalds [Sat, 18 Oct 2014 19:12:45 +0000 (12:12 -0700)]
Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block
Pull block layer driver update from Jens Axboe:
"This is the block driver pull request for 3.18. Not a lot in there
this round, and nothing earth shattering.
- A round of drbd fixes from the linbit team, and an improvement in
asender performance.
- Removal of deprecated (and unused) IRQF_DISABLED flag in rsxx and
hd from Michael Opdenacker.
- Disable entropy collection from flash devices by default, from Mike
Snitzer.
- A small collection of xen blkfront/back fixes from Roger Pau Monné
and Vitaly Kuznetsov"
* 'for-3.18/drivers' of git://git.kernel.dk/linux-block:
block: disable entropy contributions for nonrot devices
xen, blkfront: factor out flush-related checks from do_blkif_request()
xen-blkback: fix leak on grant map error path
xen/blkback: unmap all persistent grants when frontend gets disconnected
rsxx: Remove deprecated IRQF_DISABLED
block: hd: remove deprecated IRQF_DISABLED
drbd: use RB_DECLARE_CALLBACKS() to define augment callbacks
drbd: compute the end before rb_insert_augmented()
drbd: Add missing newline in resync progress display in /proc/drbd
drbd: reduce lock contention in drbd_worker
drbd: Improve asender performance
drbd: Get rid of the WORK_PENDING macro
drbd: Get rid of the __no_warn and __cond_lock macros
drbd: Avoid inconsistent locking warning
drbd: Remove superfluous newline from "resync_extents" debugfs entry.
drbd: Use consistent names for all the bi_end_io callbacks
drbd: Use better variable names
Linus Torvalds [Sat, 18 Oct 2014 18:53:51 +0000 (11:53 -0700)]
Merge branch 'for-3.18/core' of git://git.kernel.dk/linux-block
Pull core block layer changes from Jens Axboe:
"This is the core block IO pull request for 3.18. Apart from the new
and improved flush machinery for blk-mq, this is all mostly bug fixes
and cleanups.
- blk-mq timeout updates and fixes from Christoph.
- Removal of REQ_END, also from Christoph. We pass it through the
->queue_rq() hook for blk-mq instead, freeing up one of the request
bits. The space was overly tight on 32-bit, so Martin also killed
REQ_KERNEL since it's no longer used.
- blk integrity updates and fixes from Martin and Gu Zheng.
- Update to the flush machinery for blk-mq from Ming Lei. Now we
have a per hardware context flush request, which both cleans up the
code should scale better for flush intensive workloads on blk-mq.
- Improve the error printing, from Rob Elliott.
- Backing device improvements and cleanups from Tejun.
- Fixup of a misplaced rq_complete() tracepoint from Hannes.
- Make blk_get_request() return error pointers, fixing up issues
where we NULL deref when a device goes bad or missing. From Joe
Lawrence.
- Prep work for drastically reducing the memory consumption of dm
devices from Junichi Nomura. This allows creating clone bio sets
without preallocating a lot of memory.
- Fix a blk-mq hang on certain combinations of queue depths and
hardware queues from me.
- Limit memory consumption for blk-mq devices for crash dump
scenarios and drivers that use crazy high depths (certain SCSI
shared tag setups). We now just use a single queue and limited
depth for that"
* 'for-3.18/core' of git://git.kernel.dk/linux-block: (58 commits)
block: Remove REQ_KERNEL
blk-mq: allocate cpumask on the home node
bio-integrity: remove the needless fail handle of bip_slab creating
block: include func name in __get_request prints
block: make blk_update_request print prefix match ratelimited prefix
blk-merge: don't compute bi_phys_segments from bi_vcnt for cloned bio
block: fix alignment_offset math that assumes io_min is a power-of-2
blk-mq: Make bt_clear_tag() easier to read
blk-mq: fix potential hang if rolling wakeup depth is too high
block: add bioset_create_nobvec()
block: use bio_clone_fast() in blk_rq_prep_clone()
block: misplaced rq_complete tracepoint
sd: Honor block layer integrity handling flags
block: Replace strnicmp with strncasecmp
block: Add T10 Protection Information functions
block: Don't merge requests if integrity flags differ
block: Integrity checksum flag
block: Relocate bio integrity flags
block: Add a disk flag to block integrity profile
block: Add prefix to block integrity profile flags
...
Linus Torvalds [Sat, 18 Oct 2014 18:48:03 +0000 (11:48 -0700)]
Merge tag 'for-linus-
20141015' of git://git.infradead.org/linux-mtd
Pull MTD update from Brian Norris:
"Sorry for delaying this a bit later than usual. There's one mild
regression from 3.16 that was noticed during the 3.17 cycle, and I
meant to send a fix for it along with this pull request. I'll
probably try to queue it up for a later pull request once I've had a
better look at it, hopefully by -rc2 at the latest.
Summary for this pull:
NAND
- Cleanup for Denali driver
- Atmel: add support for new page sizes
- Atmel: fix up 'raw' mode support
- Atmel: miscellaneous cleanups
- New timing mode helpers for non-ONFI NAND
- OMAP: allow driver to be (properly) built as a module
- bcm47xx: RESET support and other cleanups
SPI NOR
- Miscellaneous cleanups, to prepare framework for wider use (some
further work still pending)
- Compile-time configuration to select 4K vs. 64K support for flash
that support both (necessary for using UBIFS on some SPI NOR)
A few scattered code quality fixes, detected by Coverity
See the changesets for more"
* tag 'for-linus-
20141015' of git://git.infradead.org/linux-mtd: (59 commits)
mtd: nand: omap: Correct CONFIG_MTD_NAND_OMAP_BCH help message
mtd: nand: Force omap_elm to be built as a module if omap2_nand is a module
mtd: move support for struct flash_platform_data into m25p80
mtd: spi-nor: add Kconfig option to disable 4K sectors
mtd: nand: Move ELM driver and rename as omap_elm
nand: omap2: Replace pr_err with dev_err
nand: omap2: Remove horrible ifdefs to fix module probe
mtd: nand: add Hynix's H27UCG8T2ATR-BC to nand_ids table
mtd: nand: support ONFI timing mode retrieval for non-ONFI NANDs
mtd: physmap_of: Add non-obsolete map_rom probe
mtd: physmap_of: Fix ROM support via OF
MAINTAINERS: add l2-mtd.git, 'next' tree for MTD
mtd: denali: fix indents and other trivial things
mtd: denali: remove unnecessary parentheses
mtd: denali: remove another set-but-unused variable
mtd: denali: fix include guard and license block of denali.h
mtd: nand: don't break long print messages
mtd: bcm47xxnflash: replace some magic numbers
mtd: bcm47xxnflash: NAND_CMD_RESET support
mtd: bcm47xxnflash: add cmd_ctrl handler
...
Linus Torvalds [Sat, 18 Oct 2014 18:39:52 +0000 (11:39 -0700)]
Merge tag 'md/3.18' of git://neil.brown.name/md
Pull md updates from Neil Brown:
- a few minor bug fixes
- quite a lot of code tidy-up and simplification
- remove PRINT_RAID_DEBUG ioctl. I'm fairly sure it is unused, and it
isn't particularly useful.
* tag 'md/3.18' of git://neil.brown.name/md: (21 commits)
lib/raid6: Add log level to printks
md: move EXPORT_SYMBOL to after function in md.c
md: discard PRINT_RAID_DEBUG ioctl
md: remove MD_BUG()
md: clean up 'exit' labels in md_ioctl().
md: remove unnecessary test for MD_MAJOR in md_ioctl()
md: don't allow "-sync" to be set for device in an active array.
md: remove unwanted white space from md.c
md: don't start resync thread directly from md thread.
md: Just use RCU when checking for overlap between arrays.
md: avoid potential long delay under pers_lock
md: simplify export_array()
md: discard find_rdev_nr in favour of find_rdev_nr_rcu
md: use wait_event() to simplify md_super_wait()
md: be more relaxed about stopping an array which isn't started.
md/raid1: process_checks doesn't use its return value.
md/raid5: fix init_stripe() inconsistencies
md/raid10: another memory leak due to reshape.
md: use set_bit/clear_bit instead of shift/mask for bi_flags changes.
md/raid1: minor typos and reformatting.
...
Linus Torvalds [Sat, 18 Oct 2014 17:26:10 +0000 (10:26 -0700)]
Merge branch 'for-linus2' of git://git./linux/kernel/git/jmorris/linux-security
Pull selinux fix from James Morris:
"Fix for a list corruption bug in the SELinux code"
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
selinux: fix inode security list corruption
Linus Torvalds [Sat, 18 Oct 2014 17:25:09 +0000 (10:25 -0700)]
Merge tag 'virtio-next-for-linus' of git://git./linux/kernel/git/rusty/linux
Pull virtio updates from Rusty Russell:
"One cc: stable commit, the rest are a series of minor cleanups which
have been sitting in MST's tree during my vacation. I changed a
function name and made one trivial change, then they spent two days in
linux-next"
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (25 commits)
virtio-rng: refactor probe error handling
virtio_scsi: drop scan callback
virtio_balloon: enable VQs early on restore
virtio_scsi: fix race on device removal
virito_scsi: use freezable WQ for events
virtio_net: enable VQs early on restore
virtio_console: enable VQs early on restore
virtio_scsi: enable VQs early on restore
virtio_blk: enable VQs early on restore
virtio_scsi: move kick event out from virtscsi_init
virtio_net: fix use after free on allocation failure
9p/trans_virtio: enable VQs early
virtio_console: enable VQs early
virtio_blk: enable VQs early
virtio_net: enable VQs early
virtio: add API to enable VQs early
virtio_net: minor cleanup
virtio-net: drop config_mutex
virtio_net: drop config_enable
virtio-blk: drop config_mutex
...
Linus Torvalds [Sat, 18 Oct 2014 17:24:26 +0000 (10:24 -0700)]
Merge tag 'modules-next-for-linus' of git://git./linux/kernel/git/rusty/linux
Pull module fix from Rusty Russell:
"A single panic fix for a rare race, stable CC'd"
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
modules, lock around setting of MODULE_STATE_UNFORMED
Jonathan Corbet [Fri, 17 Oct 2014 12:59:26 +0000 (08:59 -0400)]
MAINTAINERS: Become the docs maintainer
It seems it's my turn to be the documentation maintainer for a bit. My
plan is to work to ensure that docs patches don't fall through the cracks;
I assume most changes will continue to flow through subsystem-specific
trees.
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andy Lutomirski [Wed, 8 Oct 2014 16:02:13 +0000 (09:02 -0700)]
x86,kvm,vmx: Preserve CR4 across VM entry
CR4 isn't constant; at least the TSD and PCE bits can vary.
TBH, treating CR0 and CR3 as constant scares me a bit, too, but it looks
like it's correct.
This adds a branch and a read from cr4 to each vm entry. Because it is
extremely likely that consecutive entries into the same vcpu will have
the same host cr4 value, this fixes up the vmcs instead of restoring cr4
after the fact. A subsequent patch will add a kernel-wide cr4 shadow,
reducing the overhead in the common case to just two memory reads and a
branch.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Cc: Petr Matousek <pmatouse@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Li RongQing [Sat, 18 Oct 2014 09:33:38 +0000 (17:33 +0800)]
ipv6: fix a potential use after free in sit.c
pskb_may_pull() maybe change skb->data and make iph pointer oboslete,
fix it by geting ip header length directly.
Fixes:
ca15a078 (sit: generate icmpv6 error when receiving icmpv4 error)
Cc: Oussama Ghorbel <ghorbel@pivasoftware.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Sat, 18 Oct 2014 09:27:42 +0000 (17:27 +0800)]
ipv6: fix a potential use after free in ip6_offload.c
pskb_may_pull() maybe change skb->data and make opth pointer oboslete,
so set the opth again
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Sat, 18 Oct 2014 09:26:04 +0000 (17:26 +0800)]
ipv4: fix a potential use after free in gre_offload.c
pskb_may_pull() may change skb->data and make greh pointer oboslete;
so need to reassign greh;
but since first calling pskb_may_pull already ensured that skb->data
has enough space for greh, so move the reference of greh before second
calling pskb_may_pull(), to avoid reassign greh.
Fixes:
7a7ffbabf9("ipv4: fix tunneled VM traffic over hw VXLAN/GRE GSO NIC")
Cc: Wei-Chun Chao <weichunc@plumgrid.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Sat, 18 Oct 2014 15:34:37 +0000 (08:34 -0700)]
tcp: fix build error if IPv6 is not enabled
$ make M=net/ipv4
CC net/ipv4/route.o
In file included from net/ipv4/route.c:102:0:
include/net/tcp.h: In function ‘tcp_v6_iif’:
include/net/tcp.h:738:32: error: ‘union <anonymous>’ has no member named ‘h6’
return TCP_SKB_CB(skb)->header.h6.iif;
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes:
870c3151382c ("ipv6: introduce tcp_v6_iif()")
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 18 Oct 2014 16:31:37 +0000 (09:31 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Include fixes for netrom and dsa (Fabian Frederick and Florian
Fainelli)
2) Fix FIXED_PHY support in stmmac, from Giuseppe CAVALLARO.
3) Several SKB use after free fixes (vxlan, openvswitch, vxlan,
ip_tunnel, fou), from Li ROngQing.
4) fec driver PTP support fixes from Luwei Zhou and Nimrod Andy.
5) Use after free in virtio_net, from Michael S Tsirkin.
6) Fix flow mask handling for megaflows in openvswitch, from Pravin B
Shelar.
7) ISDN gigaset and capi bug fixes from Tilman Schmidt.
8) Fix route leak in ip_send_unicast_reply(), from Vasily Averin.
9) Fix two eBPF JIT bugs on x86, from Alexei Starovoitov.
10) TCP_SKB_CB() reorganization caused a few regressions, fixed by Cong
Wang and Eric Dumazet.
11) Don't overwrite end of SKB when parsing malformed sctp ASCONF
chunks, from Daniel Borkmann.
12) Don't call sock_kfree_s() with NULL pointers, this function also has
the side effect of adjusting the socket memory usage. From Cong Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits)
bna: fix skb->truesize underestimation
net: dsa: add includes for ethtool and phy_fixed definitions
openvswitch: Set flow-key members.
netrom: use linux/uaccess.h
dsa: Fix conversion from host device to mii bus
tipc: fix bug in bundled buffer reception
ipv6: introduce tcp_v6_iif()
sfc: add support for skb->xmit_more
r8152: return -EBUSY for runtime suspend
ipv4: fix a potential use after free in fou.c
ipv4: fix a potential use after free in ip_tunnel_core.c
hyperv: Add handling of IP header with option field in netvsc_set_hash()
openvswitch: Create right mask with disabled megaflows
vxlan: fix a free after use
openvswitch: fix a use after free
ipv4: dst_entry leak in ip_send_unicast_reply()
ipv4: clean up cookie_v4_check()
ipv4: share tcp_v4_save_options() with cookie_v4_check()
ipv4: call __ip_options_echo() in cookie_v4_check()
atm: simplify lanai.c by using module_pci_driver
...
Linus Torvalds [Sat, 18 Oct 2014 16:30:41 +0000 (09:30 -0700)]
Merge git://git./linux/kernel/git/davem/sparc
Pull Sparc bugfix from David Miller:
"Sparc64 AES ctr mode bug fix"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix FPU register corruption with AES crypto offload.
Linus Torvalds [Sat, 18 Oct 2014 16:29:59 +0000 (09:29 -0700)]
Merge git://git./linux/kernel/git/davem/ide
Pull IDE cleanup from David Miller:
"One IDE driver cleanup"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
Drivers: ide: Remove typedef atiixp_ide_timing
Catalin Marinas [Fri, 17 Oct 2014 16:38:49 +0000 (17:38 +0100)]
futex: Ensure get_futex_key_refs() always implies a barrier
Commit
b0c29f79ecea (futexes: Avoid taking the hb->lock if there's
nothing to wake up) changes the futex code to avoid taking a lock when
there are no waiters. This code has been subsequently fixed in commit
11d4616bd07f (futex: revert back to the explicit waiter counting code).
Both the original commit and the fix-up rely on get_futex_key_refs() to
always imply a barrier.
However, for private futexes, none of the cases in the switch statement
of get_futex_key_refs() would be hit and the function completes without
a memory barrier as required before checking the "waiters" in
futex_wake() -> hb_waiters_pending(). The consequence is a race with a
thread waiting on a futex on another CPU, allowing the waker thread to
read "waiters == 0" while the waiter thread to have read "futex_val ==
locked" (in kernel).
Without this fix, the problem (user space deadlocks) can be seen with
Android bionic's mutex implementation on an arm64 multi-cluster system.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Matteo Franchin <Matteo.Franchin@arm.com>
Fixes:
b0c29f79ecea (futexes: Avoid taking the hb->lock if there's nothing to wake up)
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Tested-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: <stable@vger.kernel.org>
Cc: Darren Hart <dvhart@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ingo Molnar [Sat, 18 Oct 2014 07:04:02 +0000 (09:04 +0200)]
Merge tag 'perf-core-for-mingo' of git://git./linux/kernel/git/acme/linux into perf/urgent
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
User visible changes:
* Add period data column and make it default in 'perf script' (Jiri Olsa)
Infrastructure changes:
* Move exit stuff from perf_evsel__delete to perf_evsel__exit, delete
should be just a front end for exit + free (Arnaldo Carvalho de Melo)
* Add missing 'struct option' forward declaration (Arnaldo Carvalho de Melo)
* No need to drag util/cgroup.h into evsel.h (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Eric Dumazet [Fri, 17 Oct 2014 19:45:55 +0000 (12:45 -0700)]
bna: fix skb->truesize underestimation
skb->truesize is not meant to be tracking amount of used bytes
in an skb, but amount of reserved/consumed bytes in memory.
For instance, if we use a single byte in last page fragment,
we have to account the full size of the fragment.
skb->truesize can be very different from skb->len, that has
a very specific safety purpose.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Fri, 17 Oct 2014 23:02:13 +0000 (16:02 -0700)]
net: dsa: add includes for ethtool and phy_fixed definitions
net/dsa/slave.c uses functions and structures declared in phy_fixed.h
but does not explicitely include it, while dsa.h needs structure
declarations for 'struct ethtool_wolinfo' and 'struct ethtool_eee', fix
those by including the correct header files.
Fixes:
ec9436baedb6 ("net: dsa: allow drivers to do link adjustment")
Fixes:
ce31b31c68e7 ("net: dsa: allow updating fixed PHY link information")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pravin B Shelar [Fri, 17 Oct 2014 20:56:31 +0000 (13:56 -0700)]
openvswitch: Set flow-key members.
This patch adds missing memset which are required to initialize
flow key member. For example for IP flow we need to initialize
ip.frag for all cases.
Found by inspection.
This bug is introduced by commit
0714812134d7dcadeb7ecfbfeb18788aa7e1eaac
("openvswitch: Eliminate memset() from flow_extract").
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Fri, 17 Oct 2014 20:00:22 +0000 (22:00 +0200)]
netrom: use linux/uaccess.h
replace asm/uaccess.h by linux/uaccess.h
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guenter Roeck [Fri, 17 Oct 2014 19:30:58 +0000 (12:30 -0700)]
dsa: Fix conversion from host device to mii bus
Commit
b4d2394d01bc ("dsa: Replace mii_bus with a generic host device")
replaces mii_bus with a generic host_dev, and introduces
dsa_host_dev_to_mii_bus() to support conversion from host_dev to mii_bus.
However, in some cases it uses to_mii_bus to perform that conversion.
Since host_dev is not the phy bus device but typically a platform device,
this fails and results in a crash with the affected drivers.
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<
ffffffff81781d35>] __mutex_lock_slowpath+0x75/0x100
PGD
406783067 PUD
406784067 PMD 0
Oops: 0002 [#1] SMP
...
Call Trace:
[<
ffffffff810a538b>] ? pick_next_task_fair+0x61b/0x880
[<
ffffffff81781de3>] mutex_lock+0x23/0x37
[<
ffffffff81533244>] mdiobus_read+0x34/0x60
[<
ffffffff8153b95a>] __mv88e6xxx_reg_read+0x8a/0xa0
[<
ffffffff8153b9bc>] mv88e6xxx_reg_read+0x4c/0xa0
Fixes:
b4d2394d01bc ("dsa: Replace mii_bus with a generic host device")
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Fri, 17 Oct 2014 19:25:28 +0000 (15:25 -0400)]
tipc: fix bug in bundled buffer reception
In commit
ec8a2e5621db2da24badb3969eda7fd359e1869f ("tipc: same receive
code path for connection protocol and data messages") we omitted the
the possiblilty that an arriving message extracted from a bundle buffer
may be a multicast message. Such messages need to be to be delivered to
the socket via a separate function, tipc_sk_mcast_rcv(). As a result,
small multicast messages arriving as members of a bundle buffer will be
silently dropped.
This commit corrects the error by considering this case in the function
tipc_link_bundle_rcv().
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 17 Oct 2014 16:17:20 +0000 (09:17 -0700)]
ipv6: introduce tcp_v6_iif()
Commit
971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line
misses") added a regression for SO_BINDTODEVICE on IPv6.
This is because we still use inet6_iif() which expects that IP6 control
block is still at the beginning of skb->cb[]
This patch adds tcp_v6_iif() helper and uses it where necessary.
Because __inet6_lookup_skb() is used by TCP and DCCP, we add an iif
parameter to it.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes:
971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Edward Cree [Fri, 17 Oct 2014 14:32:25 +0000 (15:32 +0100)]
sfc: add support for skb->xmit_more
Don't ring the doorbell, and don't do PIO. This will also prevent
TX Push, because there will be more than one buffer waiting when
the doorbell is rung.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hayeswang [Fri, 17 Oct 2014 08:55:08 +0000 (16:55 +0800)]
r8152: return -EBUSY for runtime suspend
Remove calling cancel_delayed_work_sync() for runtime suspend,
because it would cause dead lock. Instead, return -EBUSY to
avoid the device enters suspending if the net is running and
the delayed work is pending or running. The delayed work would
try to wake up the device later, so the suspending is not
necessary.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 17 Oct 2014 08:53:47 +0000 (16:53 +0800)]
ipv4: fix a potential use after free in fou.c
pskb_may_pull() maybe change skb->data and make uh pointer oboslete,
so reload uh and guehdr
Fixes:
37dd0247 ("gue: Receive side for Generic UDP Encapsulation")
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 17 Oct 2014 08:53:23 +0000 (16:53 +0800)]
ipv4: fix a potential use after free in ip_tunnel_core.c
pskb_may_pull() maybe change skb->data and make eth pointer oboslete,
so set eth after pskb_may_pull()
Fixes:
3d7b46cd("ip_tunnel: push generic protocol handling to ip_tunnel module")
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Haiyang Zhang [Thu, 16 Oct 2014 21:47:58 +0000 (14:47 -0700)]
hyperv: Add handling of IP header with option field in netvsc_set_hash()
In case that the IP header has optional field at the end, this patch will
get the port numbers after that field, and compute the hash. The general
parser skb_flow_dissect() is used here.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve French [Fri, 17 Oct 2014 22:17:12 +0000 (17:17 -0500)]
[CIFS] Remove obsolete comment
Signed-off-by: Steven French <smfrench@gmail.com>
Pravin B Shelar [Fri, 17 Oct 2014 04:55:45 +0000 (21:55 -0700)]
openvswitch: Create right mask with disabled megaflows
If megaflows are disabled, the userspace does not send the netlink attribute
OVS_FLOW_ATTR_MASK, and the kernel must create an exact match mask.
sw_flow_mask_set() sets every bytes (in 'range') of the mask to 0xff, even the
bytes that represent padding for struct sw_flow, or the bytes that represent
fields that may not be set during ovs_flow_extract().
This is a problem, because when we extract a flow from a packet,
we do not memset() anymore the struct sw_flow to 0.
This commit gets rid of sw_flow_mask_set() and introduces mask_set_nlattr(),
which operates on the netlink attributes rather than on the mask key. Using
this approach we are sure that only the bytes that the user provided in the
flow are matched.
Also, if the parse_flow_mask_nlattrs() for the mask ENCAP attribute fails, we
now return with an error.
This bug is introduced by commit
0714812134d7dcadeb7ecfbfeb18788aa7e1eaac
("openvswitch: Eliminate memset() from flow_extract").
Reported-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 17 Oct 2014 06:06:16 +0000 (14:06 +0800)]
vxlan: fix a free after use
pskb_may_pull maybe change skb->data and make eth pointer oboslete,
so eth needs to reload
Fixes:
91269e390d062 ("vxlan: using pskb_may_pull as early as possible")
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 17 Oct 2014 06:03:08 +0000 (14:03 +0800)]
openvswitch: fix a use after free
pskb_may_pull() called by arphdr_ok can change skb->data, so put the arp
setting after arphdr_ok to avoid the use the freed memory
Fixes:
0714812134d7d ("openvswitch: Eliminate memset() from flow_extract.")
Cc: Jesse Gross <jesse@nicira.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasily Averin [Wed, 15 Oct 2014 12:24:02 +0000 (16:24 +0400)]
ipv4: dst_entry leak in ip_send_unicast_reply()
ip_setup_cork() called inside ip_append_data() steals dst entry from rt to cork
and in case errors in __ip_append_data() nobody frees stolen dst entry
Fixes:
2e77d89b2fa8 ("net: avoid a pair of dst_hold()/dst_release() in ip_append_data()")
Signed-off-by: Vasily Averin <vvs@parallels.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Olsa [Mon, 25 Aug 2014 14:45:43 +0000 (16:45 +0200)]
perf script: Add period as a default output column
Adding period as a default output column in script command fo hardware,
software and raw events.
If PERF_SAMPLE_PERIOD sample type is defined in perf.data, following
will be displayed in perf script output:
$ perf script
ls 8034 57477.887209: 250000 task-clock:
ffffffff81361d72 memset ([kernel.kallsyms])
ls 8034 57477.887464: 250000 task-clock:
ffffffff816f6d92 _raw_spin_unlock_irqrestore ([kernel.kallsyms])
ls 8034 57477.887708: 250000 task-clock:
ffffffff811a94f0 do_munmap ([kernel.kallsyms])
ls 8034 57477.887959: 250000 task-clock:
34080916c6 get_next_seq (/usr/lib64/libc-2.17.so)
ls 8034 57477.888208: 250000 task-clock:
3408079230 _IO_doallocbuf (/usr/lib64/libc-2.17.so)
ls 8034 57477.888717: 250000 task-clock:
ffffffff814242c8 n_tty_write ([kernel.kallsyms])
ls 8034 57477.889285: 250000 task-clock:
3408076402 fwrite_unlocked (/usr/lib64/libc-2.17.so)
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: "Jen-Cheng(Tommy) Huang" <tommy24@gatech.edu>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jen-Cheng(Tommy) Huang <tommy24@gatech.edu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1408977943-16594-10-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Jiri Olsa [Mon, 25 Aug 2014 14:45:42 +0000 (16:45 +0200)]
perf script: Add period data column
Adding period data column to be displayed in perf script. It's possible
to get period values using -f option, like:
$ perf script -f comm,tid,time,period,ip,sym,dso
:26019 26019 52414.329088: 3707
ffffffff8105443a native_write_msr_safe ([kernel.kallsyms])
:26019 26019 52414.329088: 44
ffffffff8105443a native_write_msr_safe ([kernel.kallsyms])
:26019 26019 52414.329093: 1987
ffffffff8105443a native_write_msr_safe ([kernel.kallsyms])
:26019 26019 52414.329093: 6
ffffffff8105443a native_write_msr_safe ([kernel.kallsyms])
ls 26019 52414.329442: 537558
3407c0639c _dl_map_object_from_fd (/usr/lib64/ld-2.17.so)
ls 26019 52414.329442: 2099
3407c0639c _dl_map_object_from_fd (/usr/lib64/ld-2.17.so)
ls 26019 52414.330181: 1242100
34080917bb get_next_seq (/usr/lib64/libc-2.17.so)
ls 26019 52414.330181: 3774
34080917bb get_next_seq (/usr/lib64/libc-2.17.so)
ls 26019 52414.331427: 1083662
ffffffff810c7dc2 update_curr ([kernel.kallsyms])
ls 26019 52414.331427: 360
ffffffff810c7dc2 update_curr ([kernel.kallsyms])
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: "Jen-Cheng(Tommy) Huang" <tommy24@gatech.edu>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jen-Cheng(Tommy) Huang <tommy24@gatech.edu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1408977943-16594-9-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>