| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.3 157/197] xtensa: fix change_bit in exclusive access option | Date | Sun, 27 Oct 2019 22:01:15 +0100 |
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From: Max Filippov <jcmvbkbc@gmail.com>
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>
--- arch/xtensa/include/asm/bitops.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/xtensa/include/asm/bitops.h +++ b/arch/xtensa/include/asm/bitops.h @@ -148,7 +148,7 @@ static inline void change_bit(unsigned i " getex %0\n" " beqz %0, 1b\n" : "=&a" (tmp) - : "a" (~mask), "a" (p) + : "a" (mask), "a" (p) : "memory"); }
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