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Message-ID: <1422307962.29618.31.camel@edumazet-glaptop2.roam.corp.google.com>
Subject: Re: [PATCH] drivers: net: xgene: fix: Out of order descriptor bytes
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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Iyappan Subramanian <isubramanian@apm.com>
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Date: Mon, 26 Jan 2015 13:32:42 -0800
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On Mon, 2015-01-26 at 13:27 -0800, Eric Dumazet wrote:

> What happens if you compile a kernel with CONFIG_SMP=n ?
> 
> 
> Most drivers in drivers/net use rmb() in this case, not smp_rmb() or
> barrier()

Note that dma_rmb() was recently added as well.