21 Jan, 2016
37 commits
-
Make initrd_load() return bool due to this particular function only using
either one or zero as its return value.No functional change.
Signed-off-by: Yaowei Bai
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make obsolete_checksetup() return bool due to this particular function
only using either one or zero as its return value.No functional change.
Signed-off-by: Yaowei Bai
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently, epoll file descriptors or epfds (the fd returned from
epoll_create[1]()) that are added to a shared wakeup source are always
added in a non-exclusive manner. This means that when we have multiple
epfds attached to a shared fd source they are all woken up. This creates
thundering herd type behavior.Introduce a new 'EPOLLEXCLUSIVE' flag that can be passed as part of the
'event' argument during an epoll_ctl() EPOLL_CTL_ADD operation. This new
flag allows for exclusive wakeups when there are multiple epfds attached
to a shared fd event source.The implementation walks the list of exclusive waiters, and queues an
event to each epfd, until it finds the first waiter that has threads
blocked on it via epoll_wait(). The idea is to search for threads which
are idle and ready to process the wakeup events. Thus, we queue an event
to at least 1 epfd, but may still potentially queue an event to all epfds
that are attached to the shared fd source.Performance testing was done by Madars Vitolins using a modified version
of Enduro/X. The use of the 'EPOLLEXCLUSIVE' flag reduce the length of
this particular workload from 860s down to 24s.Sample epoll_clt text:
EPOLLEXCLUSIVE
Sets an exclusive wakeup mode for the epfd file descriptor that is
being attached to the target file descriptor, fd. Thus, when an event
occurs and multiple epfd file descriptors are attached to the same
target file using EPOLLEXCLUSIVE, one or more epfds will receive an
event with epoll_wait(2). The default in this scenario (when
EPOLLEXCLUSIVE is not set) is for all epfds to receive an event.
EPOLLEXCLUSIVE may only be specified with the op EPOLL_CTL_ADD.Signed-off-by: Jason Baron
Tested-by: Madars Vitolins
Cc: Ingo Molnar
Cc: Peter Zijlstra
Cc: Al Viro
Cc: Michael Kerrisk
Cc: Eric Wong
Cc: Jonathan Corbet
Cc: Andy Lutomirski
Cc: Hagen Paul Pfeifer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
A simple search over the kernel souce displays a number of correctly
defined multiline macro, which generally are used as an array element
initializer:% find ../linux -type f | xargs grep -B1 -H '^[:space]*\[.*\\$'
However checkpatch.pl unexpectedly complains about all these macro
definitions:% ./scripts/checkpatch.pl --types COMPLEX_MACRO -f include/linux/perf/arm_pmu.h
ERROR: Macros with complex values should be enclosed in parentheses
+#define PERF_MAP_ALL_UNSUPPORTED \
+ [0 ... PERF_COUNT_HW_MAX - 1] = HW_OP_UNSUPPORTEDThe change intends to fix this type of false positives by flattening
only array members and skipping array element designators.Signed-off-by: Vladimir Zapolskiy
Acked-by: Joe Perches
Cc: Andy Whitcroft
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The current test excludes any macro with ## concatenation from being
reported with hidden flow control.Some macros are used with return or goto statements along with ##args or
##__VA_ARGS__. A somewhat common case is a logging macro like
pr_info(fmt, ...) then a return or goto statement.Check the concatenated variable for args or __VA_ARGS__ and allow those
macros to also be reported when they contain a return or goto.Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Linus Torvalds wrote:
> I can't but help to react that this:
> #define IOMMU_ERROR_CODE (~(unsigned long) 0)
> Not that this *matters*, but it's a bit odd to have to cast constants
> to perfectly regular C types.So add a test that looks for constants that are cast to
standard C90 int or longer types and suggest using C90
"6.4.4.1 Integer constants" integer-suffixes instead.Miscellanea:
o Add a --fix option too
Signed-off-by: Joe Perches
Suggested-by: Andrew Morton
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The clz table (__clz_tab) in lib/clz_tab.c is also provided as part of
libgcc.a, and many architectures link against libgcc. To allow the
linker to avoid a multiple-definition link failure, clz_tab.o has to be
in lib/lib.a rather than lib/builtin.o. The specific issue is that
libgcc.a comes before lib/builtin.o on vmlinux.o's link command line, so
its _clz.o is pulled to satisfy __clz_tab, and then when the remainder
of lib/builtin.o is pulled in to satisfy all the other dependencies, the
__clz_tab symbols conflict. By putting clz_tab.o in lib.a, the linker
can simply avoid pulling it into vmlinux.o when this situation arises.The definitions of __clz_tab are the same in libgcc.a and in the kernel;
arguably we could also simply rename the kernel version, but it's
unlikely the libgcc version will ever change to become incompatible, so
just using it seems reasonably safe.Signed-off-by: Chris Metcalf
Acked-by: David S. Miller
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This text refers to the "first 7 functions", which was correct when
written but became incorrect when Johannes Weiner added another function
to the list in 139e561660fe ("lib: radix_tree: tree node interface").Change the text to correctly refer to the first 8 functions.
Signed-off-by: Adam Barth
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Like others test are doing print the gathered statistics after test module
is finished. Return from the module based on the result.Signed-off-by: Andy Shevchenko
Acked-by: Rasmus Villemoes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently the only one combination is tested for overflow, i.e. rowsize =
16, groupsize = 1, len = 1. Do various test to go through all possible
branches.Signed-off-by: Andy Shevchenko
Cc: Rasmus Villemoes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
After processing by hex_dump_to_buffer() check all the parts to be expected.
Part 1. The actual expected hex dump with or without ASCII part.
Part 2. Check if the buffer is dirty beyond needed.
Part 3. Return code should be as expected.
This is done by using comparison of the return code and memcmp() against
the test buffer. We fill the buffer by FILL_CHAR ('#') characters, so, we
expect to have a tail of the buffer will be left untouched. The
terminating NUL is also checked by memcmp().Signed-off-by: Andy Shevchenko
Cc: Rasmus Villemoes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Better to use memcmp() against entire buffer to check that nothing is
happened to the data in the tail.Signed-off-by: Andy Shevchenko
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The magic numbers of the length are converted to their actual meaning,
such as end of the buffer with and without ASCII part.We don't touch the rest of the magic constants that will be removed in the
following commits.Signed-off-by: Andy Shevchenko
Cc: Rasmus Villemoes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When test for overflow do iterate the buffer length in a range 0 ..
BUF_SIZE.Signed-off-by: Andy Shevchenko
Cc: Rasmus Villemoes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Define a character to fill the test buffers. Though the character should
be printable since it's used when errors are reported. It should neither
be from hex digit [a-fA-F0-9] dictionary nor space. It is recommended not
to use one which is present in ASCII part of the test data. Later on we
might switch to unprintable character to make test case more robust.Signed-off-by: Andy Shevchenko
Suggested-by: Rasmus Villemoes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The function prepares the expected result in the provided buffer.
Signed-off-by: Andy Shevchenko
Acked-by: Rasmus Villemoes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The test suite currently doesn't cover many corner cases when
hex_dump_to_buffer() runs into overflow. Refactor and amend test suite
to cover most of the cases.This patch (of 9):
Just to follow the scheme that most of the test modules are using.
There is no fuctional change.
Signed-off-by: Andy Shevchenko
Acked-by: Rasmus Villemoes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Now that we have a generic library function for this, replace the
open-coded instance.Signed-off-by: Stephen Boyd
Cc: Hauke Mehrtens
Cc:
Cc: Paul Walmsley
Cc: Bjorn Andersson
Cc: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Now that we have a generic library function for this, replace the
open-coded instance.Signed-off-by: Stephen Boyd
Reviewed-by: Bjorn Andersson
Cc:
Cc: David Howells
Cc: Hauke Mehrtens
Cc: Paul Walmsley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some drivers need to read data out of iomem areas 32-bits at a time.
Add an API to do this.Signed-off-by: Stephen Boyd
Cc: Bjorn Andersson
Cc:
Cc: David Howells
Cc: Hauke Mehrtens
Cc: Paul Walmsley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The SMD driver is reading and writing chunks of data to iomem, and
there's an __iowrite32_copy() function for the writing part, but no
__ioread32_copy() function for the reading part. This series adds
__ioread32_copy() and uses it in two places.This patch (of 4):
The frv port uses compiler builtins, __builtin_read*(), for the I/O read
routines. Unfortunately, these don't accept const void pointers although
the generic ASM implementations do, so generic code passing const pointers
to these APIs cause compilers to emit warnings. Add wrapper functions
that cast away the const to avoid the warnings.Signed-off-by: Stephen Boyd
Cc: David Howells
Cc:
Cc: Bjorn Andersson
Cc: Hauke Mehrtens
Cc: Paul Walmsley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It was noticed that we lose precision in the final calculation for some
inputs. The most egregious example is size=3000 blk_size=1900 in units
of 10 should yield 5.70 MB but in fact yields 3.00 MB (oops).This is because the current algorithm doesn't correctly account for
all the remainders in the logarithms. Fix this by doing a correct
calculation in the remainders based on napier's algorithm.Additionally, now we have the correct result, we have to account for
arithmetic rounding because we're printing 3 digits of precision. This
means that if the fourth digit is five or greater, we have to round up,
so add a section to ensure correct rounding. Finally account for all
possible inputs correctly, including zero for block size.Fixes: b9f28d863594c429e1df35a0474d2663ca28b307
Signed-off-by: James Bottomley
Reported-by: Vitaly Kuznetsov
Cc: [delay until after 4.4 release]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Martin Kepplinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The problem is that get_maintainer.pl doesn't work if you have a ./
prefix on the filename. For example, if you type:./scripts/get_maintainer.pl -f ./drivers/usb/usb-skeleton.c
then the current code only includes LKML and people from the git log, it
doesn't include Greg or the linux-usb list.Reported-by: Dan Carpenter
Cc: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix build when CONFIG_SERIAL_8250=m and CONFIG_IBM_ASM=y.
Fixes these build errors:
drivers/built-in.o: In function `ibmasm_remove_one':
module.c:(.text+0xf6874): undefined reference to `ibmasm_unregister_uart'
drivers/built-in.o: In function `ibmasm_init_one':
module.c:(.text+0xf6c37): undefined reference to `ibmasm_register_uart'Signed-off-by: Randy Dunlap
Cc: Max Asbock
Cc: Vernon Mauery
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
record_obj() in migrate_zspage() does not preserve handle's
HANDLE_PIN_BIT, set by find_aloced_obj()->trypin_tag(), and implicitly
(accidentally) un-pins the handle, while migrate_zspage() still performs
an explicit unpin_tag() on the that handle. This additional explicit
unpin_tag() introduces a race condition with zs_free(), which can pin
that handle by this time, so the handle becomes un-pinned.Schematically, it goes like this:
CPU0 CPU1
migrate_zspage
find_alloced_obj
trypin_tag
set HANDLE_PIN_BIT zs_free()
pin_tag()
obj_malloc() -- new object, no tag
record_obj() -- remove HANDLE_PIN_BIT set HANDLE_PIN_BIT
unpin_tag() -- remove zs_free's HANDLE_PIN_BITThe race condition may result in a NULL pointer dereference:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
CPU: 0 PID: 19001 Comm: CookieMonsterCl Tainted:
PC is at get_zspage_mapping+0x0/0x24
LR is at obj_free.isra.22+0x64/0x128
Call trace:
get_zspage_mapping+0x0/0x24
zs_free+0x88/0x114
zram_free_page+0x64/0xcc
zram_slot_free_notify+0x90/0x108
swap_entry_free+0x278/0x294
free_swap_and_cache+0x38/0x11c
unmap_single_vma+0x480/0x5c8
unmap_vmas+0x44/0x60
exit_mmap+0x50/0x110
mmput+0x58/0xe0
do_exit+0x320/0x8dc
do_group_exit+0x44/0xa8
get_signal+0x538/0x580
do_signal+0x98/0x4b8
do_notify_resume+0x14/0x5cThis patch keeps the lock bit in migration path and update value
atomically.Signed-off-by: Junil Lee
Signed-off-by: Minchan Kim
Acked-by: Vlastimil Babka
Cc: Sergey Senozhatsky
Cc: [4.1+]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commits 21f55b018ba5 ("arch/*/include/uapi/asm/mman.h: : let MADV_FREE
have same value for all architectures") and ef58978f1eaa ("mm: define
MADV_FREE for some arches") both defined MADV_FREE, but did not use the
same values. This results in build errors such as./arch/alpha/include/uapi/asm/mman.h:53:0: error: "MADV_FREE" redefined
./arch/alpha/include/uapi/asm/mman.h:50:0: note: this is the location of the previous definitionfor the affected architectures.
Fixes: 21f55b018ba5 ("arch/*/include/uapi/asm/mman.h: : let MADV_FREE have same value for all architectures")
Fixes: ef58978f1eaa ("mm: define MADV_FREE for some arches")
Signed-off-by: Guenter Roeck
Cc: Chen Gang
Cc: Minchan Kim
Acked-by: Helge Deller [parisc]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
For THP=n, HPAGE_PMD_NR in smaps_account() expands to BUILD_BUG().
That's fine since this codepath is eliminated by modern compilers.But older compilers have not that efficient dead code elimination. It
causes problem at least with gcc 4.1.2 on m68k:fs/built-in.o: In function `smaps_account':
task_mmu.c:(.text+0x4f8fa): undefined reference to `__compiletime_assert_471'Let's replace HPAGE_PMD_NR with 1 << compound_order(page).
Signed-off-by: Kirill A. Shutemov
Reported-by: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
split_queue_lock can be taken from interrupt context in some cases, but
I forgot to convert locking in split_huge_page() to interrupt-safe
primitives.Let's fix this.
lockdep output:
======================================================
[ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ]
4.4.0+ #259 Tainted: G W
------------------------------------------------------
syz-executor/18183 [HC0[0]:SC0[2]:HE0:SE0] is trying to acquire:
(split_queue_lock){+.+...}, at: free_transhuge_page+0x24/0x90 mm/huge_memory.c:3436and this task is already holding:
(slock-AF_INET){+.-...}, at: spin_lock_bh include/linux/spinlock.h:307
(slock-AF_INET){+.-...}, at: lock_sock_fast+0x45/0x120 net/core/sock.c:2462
which would create a new lock dependency:
(slock-AF_INET){+.-...} -> (split_queue_lock){+.+...}but this new dependency connects a SOFTIRQ-irq-safe lock:
(slock-AF_INET){+.-...}
... which became SOFTIRQ-irq-safe at:
mark_irqflags kernel/locking/lockdep.c:2799
__lock_acquire+0xfd8/0x4700 kernel/locking/lockdep.c:3162
lock_acquire+0x1dc/0x430 kernel/locking/lockdep.c:3585
__raw_spin_lock include/linux/spinlock_api_smp.h:144
_raw_spin_lock+0x33/0x50 kernel/locking/spinlock.c:151
spin_lock include/linux/spinlock.h:302
udp_queue_rcv_skb+0x781/0x1550 net/ipv4/udp.c:1680
flush_stack+0x50/0x330 net/ipv6/udp.c:799
__udp4_lib_mcast_deliver+0x694/0x7f0 net/ipv4/udp.c:1798
__udp4_lib_rcv+0x17dc/0x23e0 net/ipv4/udp.c:1888
udp_rcv+0x21/0x30 net/ipv4/udp.c:2108
ip_local_deliver_finish+0x2b3/0xa50 net/ipv4/ip_input.c:216
NF_HOOK_THRESH include/linux/netfilter.h:226
NF_HOOK include/linux/netfilter.h:249
ip_local_deliver+0x1c4/0x2f0 net/ipv4/ip_input.c:257
dst_input include/net/dst.h:498
ip_rcv_finish+0x5ec/0x1730 net/ipv4/ip_input.c:365
NF_HOOK_THRESH include/linux/netfilter.h:226
NF_HOOK include/linux/netfilter.h:249
ip_rcv+0x963/0x1080 net/ipv4/ip_input.c:455
__netif_receive_skb_core+0x1620/0x2f80 net/core/dev.c:4154
__netif_receive_skb+0x2a/0x160 net/core/dev.c:4189
netif_receive_skb_internal+0x1b5/0x390 net/core/dev.c:4217
napi_skb_finish net/core/dev.c:4542
napi_gro_receive+0x2bd/0x3c0 net/core/dev.c:4572
e1000_clean_rx_irq+0x4e2/0x1100 drivers/net/ethernet/intel/e1000e/netdev.c:1038
e1000_clean+0xa08/0x24a0 drivers/net/ethernet/intel/e1000/e1000_main.c:3819
napi_poll net/core/dev.c:5074
net_rx_action+0x7eb/0xdf0 net/core/dev.c:5139
__do_softirq+0x26a/0x920 kernel/softirq.c:273
invoke_softirq kernel/softirq.c:350
irq_exit+0x18f/0x1d0 kernel/softirq.c:391
exiting_irq ./arch/x86/include/asm/apic.h:659
do_IRQ+0x86/0x1a0 arch/x86/kernel/irq.c:252
ret_from_intr+0x0/0x20 arch/x86/entry/entry_64.S:520
arch_safe_halt ./arch/x86/include/asm/paravirt.h:117
default_idle+0x52/0x2e0 arch/x86/kernel/process.c:304
arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:295
default_idle_call+0x48/0xa0 kernel/sched/idle.c:92
cpuidle_idle_call kernel/sched/idle.c:156
cpu_idle_loop kernel/sched/idle.c:252
cpu_startup_entry+0x554/0x710 kernel/sched/idle.c:300
rest_init+0x192/0x1a0 init/main.c:412
start_kernel+0x678/0x69e init/main.c:683
x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:195
x86_64_start_kernel+0x158/0x167 arch/x86/kernel/head64.c:184to a SOFTIRQ-irq-unsafe lock:
(split_queue_lock){+.+...}
which became SOFTIRQ-irq-unsafe at:
mark_irqflags kernel/locking/lockdep.c:2817
__lock_acquire+0x146e/0x4700 kernel/locking/lockdep.c:3162
lock_acquire+0x1dc/0x430 kernel/locking/lockdep.c:3585
__raw_spin_lock include/linux/spinlock_api_smp.h:144
_raw_spin_lock+0x33/0x50 kernel/locking/spinlock.c:151
spin_lock include/linux/spinlock.h:302
split_huge_page_to_list+0xcc0/0x1c50 mm/huge_memory.c:3399
split_huge_page include/linux/huge_mm.h:99
queue_pages_pte_range+0xa38/0xef0 mm/mempolicy.c:507
walk_pmd_range mm/pagewalk.c:50
walk_pud_range mm/pagewalk.c:90
walk_pgd_range mm/pagewalk.c:116
__walk_page_range+0x653/0xcd0 mm/pagewalk.c:204
walk_page_range+0xfe/0x2b0 mm/pagewalk.c:281
queue_pages_range+0xfb/0x130 mm/mempolicy.c:687
migrate_to_node mm/mempolicy.c:1004
do_migrate_pages+0x370/0x4e0 mm/mempolicy.c:1109
SYSC_migrate_pages mm/mempolicy.c:1453
SyS_migrate_pages+0x640/0x730 mm/mempolicy.c:1374
entry_SYSCALL_64_fastpath+0x16/0x7a arch/x86/entry/entry_64.S:185other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(split_queue_lock);
local_irq_disable();
lock(slock-AF_INET);
lock(split_queue_lock);
lock(slock-AF_INET);Signed-off-by: Kirill A. Shutemov
Reported-by: Dmitry Vyukov
Acked-by: David Rientjes
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix the following build warning:
lib/libcrc32c.c:42:5: warning: no previous prototype for "crc32c" [-Wmissing-prototypes]
u32 crc32c(u32 crc, const void *address, unsigned int length)
^Signed-off-by: Jean Delvare
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pull dmaengine fixes from Vinod Koul:
"Here is my second pull request for this window:A few driver fixes have piled up and one missed rcar bindings patch
which got somehow lost in for-linus branch so cherry-picked that one.Fixes are for dw, at_hdmac, edma"
* tag 'dmaengine-fix-4.5-rc1' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: rcar-dmac: Document SoC specific bindings
dmaengine: at_xdmac: fix resume for cyclic transfers
dmaengine: dw: fix cyclic transfer callbacks
dmaengine: dw: fix cyclic transfer setup
dmaengine: edma: Fix paRAM slot allocation for entry channel 0 -
Pull misc kbuild updates from Michal Marek:
- Fix for make O=... perf-tar*
- make tags revamp and fix for the fallout. Patch for warnings about
line breaks inside DEFINE_PER_CPU macros is pending
- New coccinelle test* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
coccinelle: tests: unsigned value cannot be lesser than zero
tags: Unify emacs and exuberant rules
tags: Drop the _PE rule
tags: Do not try to index defconfigs
tags: Process Kconfig files in a single pass
tags: Fix erroneous pattern match in a comment
aic7xxx: Avoid name collision with
tags: Treat header files as C code
package Makefile: fix perf-tar targets when outdir is set
scripts/tags.sh: Teach tags about more powerpc macros -
Pull kconfig updates from Michal Marek:
- Fix for make xconfig segfault
- Handle long strings in config symbol values
- Fix for mixing boolean and kconfig ternary type* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kconfig: fix qconf segfault by deleting heap objects
kconfig: return 'false' instead of 'no' in bool function
kconfig: allow kconfig to handle longer path names -
Pull kbuild updates from Michal Marek:
- Make -m in makefiles work like -y and fix the
fallout
- Minor genksyms fix
- Fix race with make -j install modules_install
- Move -Wsign-compare from make W=1 to W=2
- Other minor fixes* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Demote 'sign-compare' warning to W=2
Makefile: revert "Makefile: Document ability to make file.lst and file.S" partially
kbuild: Do not run modules_install and install in paralel
genksyms: Handle string literals with spaces in reference files
fixdep: constify strrcmp arguments
ath10k: Fix build with CONFIG_THERMAL=m
Revert "drm: Hack around CONFIG_AGP=m build failures"
kbuild: Allow to specify composite modules with modname-m
staging/ad7606: Actually build the interface modules -
Mark the FRV architecture orphaned in the MAINTAINERS file.
Signed-off-by: David Howells
Signed-off-by: Linus Torvalds -
Update the mailing list used for development of support for
Renesas SoCs and related drivers.Up until now the linux-sh mailing list has been used, however,
Renesas SoCs are now much wider than the SH architecture and there
is some desire from some for the linux-sh list to refocus on
discussion of the work on the SH architecture.Signed-off-by: Simon Horman
Acked-by: Yoshihiro Shimoda
Acked-by: Magnus Damm
Acked-by: Geert Uytterhoeven
Acked-by: Wolfram Sang
Acked-by: Laurent Pinchart
Acked-by: Rich Felker
Acked-by: Sergei Shtylyov
Signed-off-by: Linus Torvalds -
A newly added tracepoint in the hugepage code uses a variable in the
error handling that is not initialized at that point:include/trace/events/huge_memory.h:81:230: error: 'isolated' may be used uninitialized in this function [-Werror=maybe-uninitialized]
The result is relatively harmless, as the trace data will in rare
cases contain incorrect data.This works around the problem by adding an explicit initialization.
Signed-off-by: Arnd Bergmann
Fixes: 7d2eba0557c1 ("mm: add tracepoint for scanning pages")
Reviewed-by: Ebru Akagunduz
Acked-by: David Rientjes
Cc: Kirill A. Shutemov
Signed-off-by: Linus Torvalds
20 Jan, 2016
3 commits
-
…linux-platform-drivers-x86
Pull x86 platform driver updates from Darren Hart:
"Add intel punit and telemetry driver for APL SoCs.
Add intel-hid driver for various laptop hotkey support.
Add asus-wireless radio control driver.
Keyboard backlight support/improvements for ThinkPads, Vaio, and Toshiba.
Several hotkey related fixes and improvements for dell and toshiba.
Fix oops on dual GPU Macs in apple-gmux.
A few new device IDs and quirks.
Various minor config related build issues and cleanups.surface pro 4:
- fix compare_const_fl.cocci warnings
- Add support for Surface Pro 4 Buttonsplatform/x86:
- Add Intel Telemetry Debugfs interfaces
- Add Intel telemetry platform device
- Add Intel telemetry platform driver
- Add Intel Telemetry Core Driver
- add NULL check for input parameters
- add Intel P-Unit mailbox IPC driver
- update acpi resource structure for Punitthinkpad_acpi:
- Add support for keyboard backlightdell-wmi:
- Process only one event on devices with interface version 0
- Check if Dell WMI descriptor structure is valid
- Improve unknown hotkey handling
- Use a C99-style array for bios_to_linux_keycodetc1100-wmi:
- fix build warning when CONFIG_PM not enabledasus-wireless:
- Add ACPI HID ATK4001
- Add Asus Wireless Radio Control driverasus-wmi:
- drop to_platform_driver macrointel-hid:
- new hid event driver for hotkeyssony-laptop:
- Keyboard backlight control for some Vaio Fit modelsideapad-laptop:
- Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi listapple-gmux:
- Assign apple_gmux_data before registeringtoshiba_acpi:
- Add rfkill dependency to ACPI_TOSHIBA entry
- Fix keyboard backlight sysfs entries not being updated
- Add WWAN RFKill support
- Add support for WWAN devices
- Fix blank screen at boot if transflective backlight is supported
- Propagate the hotkey value via genetlinktoshiba_bluetooth:
- Add missing newline in toshiba_bluetooth_present function"* tag 'platform-drivers-x86-v4.5-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (29 commits)
surface pro 4: fix compare_const_fl.cocci warnings
surface pro 4: Add support for Surface Pro 4 Buttons
platform:x86: Add Intel Telemetry Debugfs interfaces
platform:x86: Add Intel telemetry platform device
platform:x86: Add Intel telemetry platform driver
platform/x86: Add Intel Telemetry Core Driver
intel_punit_ipc: add NULL check for input parameters
thinkpad_acpi: Add support for keyboard backlight
dell-wmi: Process only one event on devices with interface version 0
dell-wmi: Check if Dell WMI descriptor structure is valid
tc1100-wmi: fix build warning when CONFIG_PM not enabled
asus-wireless: Add ACPI HID ATK4001
platform/x86: Add Asus Wireless Radio Control driver
asus-wmi: drop to_platform_driver macro
intel-hid: new hid event driver for hotkeys
Keyboard backlight control for some Vaio Fit models
platform/x86: Add rfkill dependency to ACPI_TOSHIBA entry
platform:x86: add Intel P-Unit mailbox IPC driver
intel_pmc_ipc: update acpi resource structure for Punit
ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list
... -
Move constants to the right of binary operators.
Generated by: scripts/coccinelle/misc/compare_const_fl.cocci
CC: Weng Xuetian
Signed-off-by: Fengguang Wu
Signed-off-by: Julia Lawall
Signed-off-by: Darren Hart -
Surface Pro 4 buttons are managed by a device with _HID "MSHW0040"
different from Surface Pro 3.This commit adds MSHW0040 to id list to support the Surface Pro 4.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=109871
Signed-off-by: Weng Xuetian
Acked-by: Chen Yu
Signed-off-by: Darren Hart
