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MIPS: barrier: Clean up __smp_mb() definition
We #ifdef on Cavium Octeon CPUs, but emit the same sync instruction in
both cases. Remove the #ifdef & simply expand to the __sync() macro.
Whilst here indent the strong ordering case definitions to match the
indentation of the weak ordering ones, helping readability.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-kernel@vger.kernel.org