Commit 775fd6bf authored Oct 15, 2019 by Max Filippov

xtensa: fix change_bit in exclusive access option



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: f7c34874 ("xtensa: add exclusive atomics support")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

parent 0c401fdf

arch/xtensa/include/asm/bitops.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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");
		}

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