Will Deacon c1d7cd228b arm64: spinlock: fix ll/sc unlock on big-endian systems ... When unlocking a spinlock, we perform a read-modify-write on the owner ticket in order to increment it and store it back with release semantics. In the LL/SC case, we load the 16-bit ticket using a 32-bit load and therefore store back the wrong halfword on a big-endian system, corrupting the lock after the first unlock and killing the system dead. This patch fixes the unlock code to use 16-bit accessors consistently. Signed-off-by: Will Deacon <will.deacon@arm.com>		2015-07-28 14:48:00 +01:00
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asm	arm64: spinlock: fix ll/sc unlock on big-endian systems	2015-07-28 14:48:00 +01:00
uapi/asm	arm64: elf: advertise 8.1 atomic instructions as new hwcap	2015-07-27 14:34:39 +01:00