[PATCH] net: mvneta: fix DMA buffer unmapping in mvneta_rx()
David Miller
davem at davemloft.net
Tue Sep 15 14:55:20 PDT 2015
From: Simon Guinot <simon.guinot at sequanux.org>
Date: Tue, 15 Sep 2015 22:41:21 +0200
> This patch fixes a regression introduced by the commit a84e32894191
> ("net: mvneta: fix refilling for Rx DMA buffers"). Due to this commit
> the newly allocated Rx buffers are DMA-unmapped in place of those passed
> to the networking stack. Obviously, this causes data corruptions.
>
> This patch fixes the issue by ensuring that the right Rx buffers are
> DMA-unmapped.
>
> Reported-by: Oren Laskin <oren at igneous.io>
> Signed-off-by: Simon Guinot <simon.guinot at sequanux.org>
> Fixes: a84e32894191 ("net: mvneta: fix refilling for Rx DMA buffers")
Applied, thanks.
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