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List: linux-sparc
Subject: Re: [PATCH v2 07/32] sparc: reuse asm-generic/barrier.h
From: David Miller <davem () davemloft ! net>
Date: 2015-12-31 19:43:47
Message-ID: 20151231.144347.54643465516219979.davem () davemloft ! net
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From: "Michael S. Tsirkin" <mst@redhat.com>
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 <mst@redhat.com>
> Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David S. Miller <davem@davemloft.net>
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