Huacai Chen
344d6159fe
MIPS: io: Add barrier after register read in inX() ...
commit 18f3e95b90b28318ef35910d21c39908de672331 upstream.
While a barrier is present in the outX() functions before the register
write, a similar barrier is missing in the inX() functions after the
register read. This could allow memory accesses following inX() to
observe stale data.
This patch is very similar to commit a1cc7034e33d12dc1 ("MIPS: io: Add
barrier after register read in readX()"). Because war_io_reorder_wmb()
is both used by writeX() and outX(), if readX() need a barrier then so
does inX().
Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Patchwork: https://patchwork.linux-mips.org/patch/19516/
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <james.hogan@mips.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: Huacai Chen <chenhuacai@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-03 11:23:11 +02:00
locking/xchg/alpha: Fix xchg() and cmpxchg() memory ordering bugs
2018-05-30 07:50:30 +02:00
ARC: Fix malformed ARC_EMUL_UNALIGNED default
2018-05-30 07:50:26 +02:00
ARM: 8764/1: kgdb: fix NUMREGBYTES so that gdb_regs[] is the correct size
2018-07-03 11:23:08 +02:00
arm64: mm: Ensure writes to swapper are ordered wrt subsequent cache maintenance
2018-07-03 11:23:08 +02:00
Merge branch 'akpm' (patches from Andrew)
2016-10-07 21:38:00 -07:00
pinctrl: adi2: Fix Kconfig build problem
2017-12-20 10:07:32 +01:00
c6x/ptrace: Remove useless PTRACE_SETREGSET implementation
2017-03-31 10:31:46 +02:00
cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected
2017-01-12 11:39:24 +01:00
futex: Remove duplicated code and fix undefined behaviour
2018-05-19 10:27:00 +02:00
h8300/ptrace: Fix incorrect register transfer count
2017-03-31 10:31:46 +02:00
futex: Remove duplicated code and fix undefined behaviour
2018-05-19 10:27:00 +02:00
ia64/err-inject: Use get_user_pages_fast()
2018-05-30 07:50:34 +02:00
mm: replace access_process_vm() write parameter with gup_flags
2016-10-19 08:31:25 -07:00
m68k/mm: Adjust VM area to be unmapped by gap size for __iounmap()
2018-07-03 11:23:05 +02:00
metag/uaccess: Check access_ok in strncpy_from_user
2017-05-25 15:44:46 +02:00
futex: Remove duplicated code and fix undefined behaviour
2018-05-19 10:27:00 +02:00
MIPS: io: Add barrier after register read in inX()
2018-07-03 11:23:11 +02:00
mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy
2018-02-17 13:21:20 +01:00
nios2: reserve boot memory for device tree
2017-04-12 12:41:14 +02:00
signal/openrisc: Fix do_unaligned_access to send the proper signal
2018-02-17 13:21:19 +01:00
futex: Remove duplicated code and fix undefined behaviour
2018-05-19 10:27:00 +02:00
powerpc/fadump: Unregister fadump on kexec down path.
2018-07-03 11:23:08 +02:00
KVM: s390: vsie: fix < 8k check for the itdba
2018-05-30 07:50:18 +02:00
Merge branch 'gup_flag-cleanups'
2016-10-19 08:39:47 -07:00
sh: fix debug trap failure to process signals before return to user
2018-05-30 07:50:39 +02:00
sparc64: Don't clibber fixed registers in __multi4.
2018-06-06 16:44:39 +02:00
futex: Remove duplicated code and fix undefined behaviour
2018-05-19 10:27:00 +02:00
um: Use POSIX ucontext_t instead of struct ucontext
2018-04-24 09:34:13 +02:00
unicore32: use simpler API for random address requests
2016-10-11 15:06:32 -07:00
x86: Call fixup_exception() before notify_die() in math_error()
2018-07-03 11:23:05 +02:00
signal/xtensa: Consistenly use SIGBUS in do_unaligned_user
2018-07-03 11:23:06 +02:00
This adds a new gcc plugin named "latent_entropy". It is designed to
2016-10-15 10:03:15 -07:00
344d6159fe