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![Will Deacon](https://secure.gravatar.com/avatar/9238e9c5166f51a7993dca43157b285f.jpg?s=96&d=mm)
Will Deacon committed 346e91ee090
mips/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() The mmiowb() macro is horribly difficult to use and drivers will continue to work most of the time if they omit a call when it is required. Rather than rely on driver authors getting this right, push mmiowb() into arch_spin_unlock() for mips. If this is deemed to be a performance issue, a subsequent optimisation could make use of ARCH_HAS_MMIOWB to elide the barrier in cases where no I/O writes were performed inside the critical section. Acked-by: Paul Burton <paul.burton@mips.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will.deacon@arm.com>