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Re: [PATCH] net: mv643xx_eth: fix packet corruption with TSO and tiny unaligned packets.

From Philipp Kirchhofer <philipp@familie-kirchhofer.de>
Newsgroups linux.kernel
Subject Re: [PATCH] net: mv643xx_eth: fix packet corruption with TSO and tiny unaligned packets.
Date 2016-01-28 22:30 +0100
Message-ID <qW2iC-UG-19@gated-at.bofh.it> (permalink)
References <qVdzs-5Vw-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Am 26.01.2016 um 16:12 schrieb Nicolas Schichan:
> The code in txq_put_data() would use txq->tx_curr_desc to index the
> tso_hdrs/tso_hdrs_dma buffers, for less than 8 bytes unaligned
> fragments, which is already moved to the next descriptor at the
> beginning of the function.
>
> If that fragment was the last of the the skb, the next skb would use
> that same space to place the ip headers, overwritting that small
> fragment data.
>
> Fixes: 91986fd3d335 (net: mv643xx_eth: Ensure proper data alignment in TSO TX path)
> Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>

Hello Nicolas,

thanks for catching this bug. Fix is good.

Reviewed-by: Philipp Kirchhofer <philipp@familie-kirchhofer.de>

Best wishes,
   Philipp

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Re: [PATCH] net: mv643xx_eth: fix packet corruption with TSO and tiny  unaligned packets. Philipp Kirchhofer <philipp@familie-kirchhofer.de> - 2016-01-28 22:30 +0100

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