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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Lucas Stach <l.stach@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] net: cpsw: prevent stray cache writeback
Date: Tue, 3 Mar 2015 08:37:43 +0100	[thread overview]
Message-ID: <20150303073743.GM11010@pengutronix.de> (raw)
In-Reply-To: <1425286776-5024-1-git-send-email-l.stach@pengutronix.de>

On Mon, Mar 02, 2015 at 09:59:36AM +0100, Lucas Stach wrote:
> The cache should be invalidated when transfering ownership of a buffer
> to the device. Otherwise the writeback of dirty cache lines can
> corrupt the hardware written data.
> 
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
> Tested-by: Jan Weitzel <j.weitzel@phytec.de>
> ---
> Sascha, please apply this to master. It fixes a TFTP buffer corruption
> issue reported by Jan.

Did that.

Sascha


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      reply	other threads:[~2015-03-03  7:38 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-02  8:59 Lucas Stach
2015-03-03  7:37 ` Sascha Hauer [this message]

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