Commit graph

723,427 commits

Author SHA1 Message Date
Martin Homuth
8400553b19 staging: rtl8712: style fix unneeded else
This patch fixes a coding style issues in the rtl8712 module as noted
by checkpatch.pl where an unnecessary else is used.

It fixes the following checkpatch.pl warning:

WARNING: else is not generally useful after a break or return

Signed-off-by: Martin Homuth <martin@martinhomuth.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:27:48 +01:00
Martin Homuth
e34fc47a3f staging: rtl8712: style fix indentation
This patch fixes various coding style issues in the rtl8712 module as
noted by checkpatch.pl related to indentation.

It fixes the following checkpatch.pl warning:

WARNING: suspect code indent for conditional statements

Signed-off-by: Martin Homuth <martin@martinhomuth.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:27:44 +01:00
Martin Homuth
3be4fdf6f6 staging: rtl8712: style fix over 80 characters warnings
This patch fixes various coding style issues in the rtl8712 module as
noted by checkpatch.pl by reducing the characters per line to under
80.

It fixes the following checkpatch.pl warning:

WARNING: line over 80 characters

Signed-off-by: Martin Homuth <martin@martinhomuth.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:23:19 +01:00
Abdul Rauf
298291bb0d staging: rtl8192u: ieee80211: ieee80211_rx.c fix checkpatch space prohibited before that '++'
Fix the following errors:
space prohibited before that '++' (ctx:WxO)

Signed-off-by: Abdul Rauf <abdulraufmujahid@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:23:18 +01:00
SUNIL KALLUR RAMEGOWDA
0a20a61465 Staging: ks7010: ks_wlan_net: Fixing coding style warning
Removing the extra spaces before tabs, checkpatch:
WARNING: please, no space before tabs

Signed-off-by: SUNIL KALLUR RAMEGOWDA <kallur.sunil@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:23:18 +01:00
Tara Null
0badff9a0d staging: vchiq_arm: fix open brace placement errors
Fix checkpatch errors relating to open brace placement for enums and
function definitions.

Signed-off-by: Tara Null <tn@fastmail.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:17:45 +01:00
Tomas Marek
47f92e399e Staging: vc04_services: fix brace coding style issues in vchiq_shim.c
This patch fix brace on next line coding style errors reported by
checkpatch.

Signed-off-by: Tomas Marek <marek_tomas@centrum.cz>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:17:45 +01:00
Jia-Ju Bai
88a527c498 staging: vt6655: Use GFP_KERNEL in kzalloc
Four kzalloc functions are called with GFP_ATOMIC.
But according to driver call graph, they are not in atomic context,
namely no spinlock is held nor in an interrupt handler.

All these "GFP_ATOMIC"s are unnecessary,
and replace with with "GFP_KERNEL"s.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:16:50 +01:00
Kamal Heib
ac3c7776b1 Staging: ccree: Add blank line after declarations
This patch adds a blank line after declarations to
improve code readability.

Issue find by checkpatch.pl script.
WARNING: Missing a blank line after declarations

Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:54 +01:00
Gilad Ben-Yossef
5cba3082ff staging: ccree: update TODO
Update TODO with handling on sysfs -> debugfs transition

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:54 +01:00
Gilad Ben-Yossef
dc5591dc9c staging: ccree: fix fips event irq handling build
When moving from internal for kernel FIPS infrastructure the FIPS event irq
handling code was left with the old ifdef by mistake. Fix it.

Fixes: b7e607bf33 ("staging: ccree: move FIPS support to kernel infrastructure")
Cc: stable@vger.kernel.org
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:54 +01:00
Gilad Ben-Yossef
a92d24a8bc staging: ccree: remove ssi_config.h
Now that the only thing left in ssi_config is the maximum
DMA mask length we get move that to ssi_driver.h and get
rid of the file.

All of ccree is now runtime configurable or under Kbuild control.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:54 +01:00
Gilad Ben-Yossef
3f268f5d66 staging: ccree: turn compile time debug log to params
The ccree driver has some support to dump runtime data
to kernel log to assist in debugging. The code used to be
enabled by a build time flag. Refactor to enable it via
module/kernel parameters.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:54 +01:00
Gilad Ben-Yossef
829def3312 staging: ccree: remove useless debug code
Remove a bunch of useless debug code ifdef'ed out

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:54 +01:00
Gilad Ben-Yossef
96e31ecc62 staging: ccree: remove CC_IRQ_DELAY dead code
Remove dead code from older version which is not supported in current
hardware.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:53 +01:00
Gilad Ben-Yossef
b3ec9a6736 staging: ccree: staging: ccree: replace sysfs by debugfs interface
The ccree driver has had a none standard sysfs interface for debugging.
Replace it with a proper debugfs interface.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:53 +01:00
Gilad Ben-Yossef
31aeaca4d2 staging: ccree: add explicit module init/exit func
We need to do a module global scope init/exit operation to support
the debugfs interface we are about to introduce in the next patch,
so wean the module of the boiler plate saving macro as it will no
longer be sufficient.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:53 +01:00
Gilad Ben-Yossef
4ba5895bd3 staging: ccree: clean up PM registration
Clean up power management registration.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:53 +01:00
Gilad Ben-Yossef
16bcccb774 staging: ccree: drop ifdef CONFIG_OF in code
As we already depend on CONFIG_OF via Kconfig no need to
support conditional build without it.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:15:53 +01:00
Valentin Vidic
82a708e740 staging: pi433: remove multiple blank lines
Fixes checkpatch warning for multiple blank lines in source.

Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:14:58 +01:00
Valentin Vidic
6106cfbd05 staging: pi433: fix CamelCase for dccPercent variables
Fixes checkpatch warning:

  CHECK: Avoid CamelCase: <dccPercent>

Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:14:58 +01:00
Roman Lakeev
e9f14f1954 staging: comedi: s626.c - fix multiline dereference
staging: comedi: s626.c - fix the following checkpatch issues:
WARNING: Avoid multiple line dereference - prefer 'devpriv->rps_buf.logical_base'
#1380: FILE: drivers/s626.c:1380:
+				   (unsigned long)devpriv->
+						  rps_buf.logical_base);

WARNING: Avoid multiple line dereference - prefer 'cmd->scan_begin_arg'
#1898: FILE: drivers/s626.c:1898:
+			err |= comedi_check_trigger_arg_min(&cmd->
+							    scan_begin_arg,

Signed-off-by: Roman Lakeev <sunnyddayss@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 15:10:09 +01:00
Kamal Heib
07df5b7c94 staging: greybus: arche-platform.c: Fix alignment should match open parenthesis
Fix "alignment should match open parenthesis" checkpatch.pl error.

Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 14:58:30 +01:00
Kamal Heib
339744e242 staging: greybus: arche-apb-ctrl.c: Fix alignment should match open parenthesis
Fix "alignment should match open parenthesis" checkpatch.pl error.

Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 14:58:30 +01:00
Gabriel L. Somlo
81948cbcf1 staging: typec: fix endianness mismatch identified by sparse
Eliminate the following sparse warnings:

tcpci.c:291:38: warning: incorrect type in argument 1 (different base types)
tcpci.c:291:38:    expected unsigned short [unsigned] [usertype] header
tcpci.c:291:38:    got restricted __le16 const [usertype] header
tcpci.c:296:16: warning: incorrect type in assignment (different base types)
tcpci.c:296:16:    expected unsigned int [unsigned] header
tcpci.c:296:16:    got restricted __le16
tcpci.c:394:28: warning: incorrect type in assignment (different base types)
tcpci.c:394:28:    expected restricted __le16 [usertype] header
tcpci.c:394:28:    got unsigned int [unsigned] [addressable] reg

Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19 11:57:37 +01:00
Greg Kroah-Hartman
7f9d04bc56 Merge 4.15-rc4 into staging-next
We want the staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-18 09:12:51 +01:00
Linus Torvalds
1291a0d504 Linux 4.15-rc4 v4.15-rc4 2017-12-17 18:59:59 -08:00
Kees Cook
779f4e1c6c Revert "exec: avoid RLIMIT_STACK races with prlimit()"
This reverts commit 04e35f4495.

SELinux runs with secureexec for all non-"noatsecure" domain transitions,
which means lots of processes end up hitting the stack hard-limit change
that was introduced in order to fix a race with prlimit(). That race fix
will need to be redesigned.

Reported-by: Laura Abbott <labbott@redhat.com>
Reported-by: Tomáš Trnka <trnka@scm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-12-17 14:26:25 -08:00
Linus Torvalds
f8940a0f20 Merge branch 'WIP.x86-pti.base-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Page Table Isolation (PTI) v4.14 backporting base tree from Ingo Molnar:
 "This tree contains the v4.14 PTI backport preparatory tree, which
  consists of four merges of upstream trees and 7 cherry-picked commits,
  which the upcoming PTI work depends on"

NOTE! The resulting tree is exactly the same as the original base tree
(ie the diff between this commit and its immediate first parent is
empty).

The only reason for this merge is literally to have a common point for
the actual PTI changes so that the commits can be shared in both the
4.15 and 4.14 trees.

* 'WIP.x86-pti.base-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow
  locking/barriers: Convert users of lockless_dereference() to READ_ONCE()
  locking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE()
  bpf: fix build issues on um due to mising bpf_perf_event.h
  perf/x86: Enable free running PEBS for REGS_USER/INTR
  x86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD
  x86/cpufeature: Add User-Mode Instruction Prevention definitions
2017-12-17 13:57:08 -08:00
Linus Torvalds
6ba64feff6 Merge branch 'WIP.x86-pti.base.prep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Page Table Isolation (PTI) preparatory tree from Ingo Molnar:
 "This does a rename to free up linux/pti.h to be used by the upcoming
  page table isolation feature"

* 'WIP.x86-pti.base.prep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  drivers/misc/intel/pti: Rename the header file to free up the namespace
2017-12-17 13:54:31 -08:00
Linus Torvalds
2ffb448ccb Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
 "A single bugfix which prevents arbitrary sigev_notify values in
  posix-timers"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  posix-timer: Properly check sigevent->sigev_notify
2017-12-17 13:48:50 -08:00
Linus Torvalds
c43727908f dmaengine fixes for v4.15-rc4
Here are fixes for this round
 - Fix for disable clk on error path in fsl-edma driver
 - Disable clk fail fix in jz4740 driver
 - Fix long pending bug in dmatest driver for dangling pointer
 - Fix potential NULL pointer dereference in at_hdmac driver
 - Error handling path in ioat driver
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Merge tag 'dmaengine-fix-4.15-rc4' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "This time consisting of fixes in a bunch of drivers and the dmatest
  module:

   - Fix for disable clk on error path in fsl-edma driver
   - Disable clk fail fix in jz4740 driver
   - Fix long pending bug in dmatest driver for dangling pointer
   - Fix potential NULL pointer dereference in at_hdmac driver
   - Error handling path in ioat driver"

* tag 'dmaengine-fix-4.15-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: fsl-edma: disable clks on all error paths
  dmaengine: jz4740: disable/unprepare clk if probe fails
  dmaengine: dmatest: move callback wait queue to thread context
  dmaengine: at_hdmac: fix potential NULL pointer dereference in atc_prep_dma_interleaved
  dmaengine: ioat: Fix error handling path
2017-12-17 13:28:49 -08:00
Arnd Bergmann
b9f5fb1800 cramfs: fix MTD dependency
With CONFIG_MTD=m and CONFIG_CRAMFS=y, we now get a link failure:

  fs/cramfs/inode.o: In function `cramfs_mount': inode.c:(.text+0x220): undefined reference to `mount_mtd'
  fs/cramfs/inode.o: In function `cramfs_mtd_fill_super':
  inode.c:(.text+0x6d8): undefined reference to `mtd_point'
  inode.c:(.text+0xae4): undefined reference to `mtd_unpoint'

This adds a more specific Kconfig dependency to avoid the broken
configuration.

Alternatively we could make CRAMFS itself depend on "MTD || !MTD" with a
similar result.

Fixes: 99c18ce580 ("cramfs: direct memory access support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-12-17 12:20:58 -08:00
Linus Torvalds
73d080d374 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "The alloc_super() one is a regression in this merge window, lazytime
  thing is older..."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  VFS: Handle lazytime in do_mount()
  alloc_super(): do ->s_umount initialization earlier
2017-12-17 12:18:35 -08:00
Linus Torvalds
1c6b942d7d Fix a regression which caused us to fail to interpret symlinks in very
ancient ext3 file system images.  Also fix two xfstests failures, one
 of which could cause a OOPS, plus an additional bug fix caught by fuzz
 testing.
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Merge tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Fix a regression which caused us to fail to interpret symlinks in very
  ancient ext3 file system images.

  Also fix two xfstests failures, one of which could cause an OOPS, plus
  an additional bug fix caught by fuzz testing"

* tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix crash when a directory's i_size is too small
  ext4: add missing error check in __ext4_new_inode()
  ext4: fix fdatasync(2) after fallocate(2) operation
  ext4: support fast symlinks from ext3 file systems
2017-12-17 12:14:33 -08:00
Andrey Ryabinin
2aeb07365b x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow
[ Note, this is a Git cherry-pick of the following commit:

    d17a1d97dc: ("x86/mm/kasan: don't use vmemmap_populate() to initialize shadow")

  ... for easier x86 PTI code testing and back-porting. ]

The KASAN shadow is currently mapped using vmemmap_populate() since that
provides a semi-convenient way to map pages into init_top_pgt.  However,
since that no longer zeroes the mapped pages, it is not suitable for
KASAN, which requires zeroed shadow memory.

Add kasan_populate_shadow() interface and use it instead of
vmemmap_populate().  Besides, this allows us to take advantage of
gigantic pages and use them to populate the shadow, which should save us
some memory wasted on page tables and reduce TLB pressure.

Link: http://lkml.kernel.org/r/20171103185147.2688-2-pasha.tatashin@oracle.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Steven Sistare <steven.sistare@oracle.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Bob Picco <bob.picco@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:57:26 +01:00
Will Deacon
3382290ed2 locking/barriers: Convert users of lockless_dereference() to READ_ONCE()
[ Note, this is a Git cherry-pick of the following commit:

    506458efaf ("locking/barriers: Convert users of lockless_dereference() to READ_ONCE()")

  ... for easier x86 PTI code testing and back-porting. ]

READ_ONCE() now has an implicit smp_read_barrier_depends() call, so it
can be used instead of lockless_dereference() without any change in
semantics.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1508840570-22169-4-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:57:15 +01:00
Will Deacon
c2bc66082e locking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE()
[ Note, this is a Git cherry-pick of the following commit:

    76ebbe78f7 ("locking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE()")

  ... for easier x86 PTI code testing and back-porting. ]

In preparation for the removal of lockless_dereference(), which is the
same as READ_ONCE() on all architectures other than Alpha, add an
implicit smp_read_barrier_depends() to READ_ONCE() so that it can be
used to head dependency chains on all architectures.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1508840570-22169-3-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:57:01 +01:00
Daniel Borkmann
ab95477e7c bpf: fix build issues on um due to mising bpf_perf_event.h
[ Note, this is a Git cherry-pick of the following commit:

    a23f06f06d ("bpf: fix build issues on um due to mising bpf_perf_event.h")

  ... for easier x86 PTI code testing and back-porting. ]

Since c895f6f703 ("bpf: correct broken uapi for
BPF_PROG_TYPE_PERF_EVENT program type") um (uml) won't build
on i386 or x86_64:

  [...]
    CC      init/main.o
  In file included from ../include/linux/perf_event.h:18:0,
                   from ../include/linux/trace_events.h:10,
                   from ../include/trace/syscall.h:7,
                   from ../include/linux/syscalls.h:82,
                   from ../init/main.c:20:
  ../include/uapi/linux/bpf_perf_event.h:11:32: fatal error:
  asm/bpf_perf_event.h: No such file or directory #include
  <asm/bpf_perf_event.h>
  [...]

Lets add missing bpf_perf_event.h also to um arch. This seems
to be the only one still missing.

Fixes: c895f6f703 ("bpf: correct broken uapi for BPF_PROG_TYPE_PERF_EVENT program type")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Richard Weinberger <richard@sigma-star.at>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Richard Weinberger <richard@sigma-star.at>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:56:34 +01:00
Andi Kleen
2fe1bc1f50 perf/x86: Enable free running PEBS for REGS_USER/INTR
[ Note, this is a Git cherry-pick of the following commit:

    a47ba4d77e ("perf/x86: Enable free running PEBS for REGS_USER/INTR")

  ... for easier x86 PTI code testing and back-porting. ]

Currently free running PEBS is disabled when user or interrupt
registers are requested. Most of the registers are actually
available in the PEBS record and can be supported.

So we just need to check for the supported registers and then
allow it: it is all except for the segment register.

For user registers this only works when the counter is limited
to ring 3 only, so this also needs to be checked.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170831214630.21892-1-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:55:17 +01:00
Rudolf Marek
f2dbad36c5 x86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD
[ Note, this is a Git cherry-pick of the following commit:

    2b67799bdf25 ("x86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD")

  ... for easier x86 PTI code testing and back-porting. ]

The latest AMD AMD64 Architecture Programmer's Manual
adds a CPUID feature XSaveErPtr (CPUID_Fn80000008_EBX[2]).

If this feature is set, the FXSAVE, XSAVE, FXSAVEOPT, XSAVEC, XSAVES
/ FXRSTOR, XRSTOR, XRSTORS always save/restore error pointers,
thus making the X86_BUG_FXSAVE_LEAK workaround obsolete on such CPUs.

Signed-Off-By: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Tested-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Link: https://lkml.kernel.org/r/bdcebe90-62c5-1f05-083c-eba7f08b2540@assembler.cz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:55:02 +01:00
Ricardo Neri
a8b4db562e x86/cpufeature: Add User-Mode Instruction Prevention definitions
[ Note, this is a Git cherry-pick of the following commit: (limited to the cpufeatures.h file)

    3522c2a6a4 ("x86/cpufeature: Add User-Mode Instruction Prevention definitions")

  ... for easier x86 PTI code testing and back-porting. ]

User-Mode Instruction Prevention is a security feature present in new
Intel processors that, when set, prevents the execution of a subset of
instructions if such instructions are executed in user mode (CPL > 0).
Attempting to execute such instructions causes a general protection
exception.

The subset of instructions comprises:

 * SGDT - Store Global Descriptor Table
 * SIDT - Store Interrupt Descriptor Table
 * SLDT - Store Local Descriptor Table
 * SMSW - Store Machine Status Word
 * STR  - Store Task Register

This feature is also added to the list of disabled-features to allow
a cleaner handling of build-time configuration.

Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Chen Yucong <slaoub@gmail.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi V. Shankar <ravi.v.shankar@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: ricardo.neri@intel.com
Link: http://lkml.kernel.org/r/1509935277-22138-7-git-send-email-ricardo.neri-calderon@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:54:34 +01:00
Ingo Molnar
e5d77a73f3 Merge commit 'upstream-x86-virt' into WIP.x86/mm
Merge a minimal set of virt cleanups, for a base for the MM isolation patches.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:50:01 +01:00
Ingo Molnar
2ec077c186 Merge branch 'upstream-acpi-fixes' into WIP.x86/pti.base
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:09:31 +01:00
Ingo Molnar
650400b2cc Merge branch 'upstream-x86-selftests' into WIP.x86/pti.base
Conflicts:
	arch/x86/kernel/cpu/Makefile

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 13:04:28 +01:00
Ingo Molnar
0fd2e9c53d Merge commit 'upstream-x86-entry' into WIP.x86/mm
Pull in a minimal set of v4.15 entry code changes, for a base for the MM isolation patches.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 12:58:53 +01:00
Ingo Molnar
1784f9144b drivers/misc/intel/pti: Rename the header file to free up the namespace
We'd like to use the 'PTI' acronym for 'Page Table Isolation' - free up the
namespace by renaming the <linux/pti.h> driver header to <linux/intel-pti.h>.

(Also standardize the header guard name while at it.)

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: J Freyensee <james_p_freyensee@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-12-17 12:52:34 +01:00
Linus Torvalds
f3b5ad89de Second pull request for 4.15-rc
- Fix for SELinux on the umad SMI path. Some old hardware
   does not fill the PKey properly exposing another bug in the newer
   SELinux code.
 - Check the input port as we can exceed array bounds from this
   user supplied value
 - Users are unable to use the hash field support as they want due to
   incorrect checks on the field restrictions, correct that so the
   feature works as intended
 - User triggerable oops in the NETLINK_RDMA handler
 - cxgb4 driver fix for a bad interaction with CQ flushing in iser
   caused by patches in this merge window, and bad CQ flushing during
   normal close.
 - Unbalanced memalloc_noio in ipoib in an error path.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "More fixes from testing done on the rc kernel, including more SELinux
  testing. Looking forward, lockdep found regression today in ipoib
  which is still being fixed.

  Summary:

   - Fix for SELinux on the umad SMI path. Some old hardware does not
     fill the PKey properly exposing another bug in the newer SELinux
     code.

   - Check the input port as we can exceed array bounds from this user
     supplied value

   - Users are unable to use the hash field support as they want due to
     incorrect checks on the field restrictions, correct that so the
     feature works as intended

   - User triggerable oops in the NETLINK_RDMA handler

   - cxgb4 driver fix for a bad interaction with CQ flushing in iser
     caused by patches in this merge window, and bad CQ flushing during
     normal close.

   - Unbalanced memalloc_noio in ipoib in an error path"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  IB/ipoib: Restore MM behavior in case of tx_ring allocation failure
  iw_cxgb4: only insert drain cqes if wq is flushed
  iw_cxgb4: only clear the ARMED bit if a notification is needed
  RDMA/netlink: Fix general protection fault
  IB/mlx4: Fix RSS hash fields restrictions
  IB/core: Don't enforce PKey security on SMI MADs
  IB/core: Bound check alternate path port number
2017-12-16 13:43:08 -08:00
Linus Torvalds
f25e229560 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Two bugfixes for the AT24 I2C eeprom driver and some minor corrections
  for I2C bus drivers"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: piix4: Fix port number check on release
  i2c: stm32: Fix copyrights
  i2c-cht-wc: constify platform_device_id
  eeprom: at24: change nvmem stride to 1
  eeprom: at24: fix I2C device selection for runtime PM
2017-12-16 13:34:38 -08:00
Linus Torvalds
d025fbf1a2 NFS client fixes for Linux 4.15-rc4
Stable bugfixes:
 - NFS: Avoid a BUG_ON() in nfs_commit_inode() by not waiting for a
        commit in the case that there were no commit requests.
 - SUNRPC: Fix a race in the receive code path
 
 Other fixes:
 - NFS: Fix a deadlock in nfs client initialization
 - xprtrdma: Fix a performance regression for small IOs
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Merge tag 'nfs-for-4.15-3' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:
 "This has two stable bugfixes, one to fix a BUG_ON() when
  nfs_commit_inode() is called with no outstanding commit requests and
  another to fix a race in the SUNRPC receive codepath.

  Additionally, there are also fixes for an NFS client deadlock and an
  xprtrdma performance regression.

  Summary:

  Stable bugfixes:
   - NFS: Avoid a BUG_ON() in nfs_commit_inode() by not waiting for a
     commit in the case that there were no commit requests.
   - SUNRPC: Fix a race in the receive code path

  Other fixes:
   - NFS: Fix a deadlock in nfs client initialization
   - xprtrdma: Fix a performance regression for small IOs"

* tag 'nfs-for-4.15-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  SUNRPC: Fix a race in the receive code path
  nfs: don't wait on commit in nfs_commit_inode() if there were no commit requests
  xprtrdma: Spread reply processing over more CPUs
  nfs: fix a deadlock in nfs client initialization
2017-12-16 13:12:53 -08:00