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| author | Max Filippov <jcmvbkbc@gmail.com> | 2019-10-15 21:51:43 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-29 09:22:35 +0100 |
| commit | a47e86abba87c5a625ba34e661a06bc798e40cf3 (patch) | |
| tree | 88e0f083d14f7ad2abb711d50d1cec1229cb2961 | |
| parent | 859628f7853eaa580123cfa5dd93906781481dc9 (diff) | |
| download | linux-stable-a47e86abba87c5a625ba34e661a06bc798e40cf3.tar.gz linux-stable-a47e86abba87c5a625ba34e661a06bc798e40cf3.tar.bz2 linux-stable-a47e86abba87c5a625ba34e661a06bc798e40cf3.zip | |
xtensa: fix change_bit in exclusive access option
commit 775fd6bfefc66a8c33e91dd9687ed530643b954d upstream.
change_bit implementation for XCHAL_HAVE_EXCLUSIVE case changes all bits
except the one required due to copy-paste error from clear_bit.
Cc: stable@vger.kernel.org # v5.2+
Fixes: f7c34874f04a ("xtensa: add exclusive atomics support")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/xtensa/include/asm/bitops.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/xtensa/include/asm/bitops.h b/arch/xtensa/include/asm/bitops.h index aeb15f4c755b..be8b2be5a98b 100644 --- a/arch/xtensa/include/asm/bitops.h +++ b/arch/xtensa/include/asm/bitops.h @@ -148,7 +148,7 @@ static inline void change_bit(unsigned int bit, volatile unsigned long *p) " getex %0\n" " beqz %0, 1b\n" : "=&a" (tmp) - : "a" (~mask), "a" (p) + : "a" (mask), "a" (p) : "memory"); } |