From: Max Filippov <jcmvbkbc@xxxxxxxxx>
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@xxxxxxxxxxxxxxx # v5.2+
Fixes: f7c34874f04a ("xtensa: add exclusive atomics support")
Signed-off-by: Max Filippov <jcmvbkbc@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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");
}
