From: "Michael S. Tsirkin" <>
Date: Thu, 31 Dec 2015 21:06:38 +0200

> On sparc 64 bit dma_rmb, dma_wmb, smp_store_mb, smp_mb, smp_rmb,
> smp_wmb, read_barrier_depends and smp_read_barrier_depends match the
> asm-generic variants exactly. Drop the local definitions and pull in
> asm-generic/barrier.h instead.
> nop uses __asm__ __volatile but is otherwise identical to
> the generic version, drop that as well.
> This is in preparation to refactoring this code area.
> Note: nop() was in processor.h and not in barrier.h as on other
> architectures. Nothing seems to depend on it being there though.
> Signed-off-by: Michael S. Tsirkin <>
> Acked-by: Arnd Bergmann <>

Acked-by: David S. Miller <>
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