From: Kalle Valo <kvalo@qca.qualcomm.com>
To: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Cc: <ath10k@lists.infradead.org>, <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH RESEND] ath10k: Fix potential Rx ring corruption
Date: Tue, 13 Jan 2015 16:22:26 +0200 [thread overview]
Message-ID: <878uh669r1.fsf@kamboji.qca.qualcomm.com> (raw)
In-Reply-To: <1420823986-29503-1-git-send-email-vthiagar@qti.qualcomm.com> (Vasanthakumar Thiagarajan's message of "Fri, 9 Jan 2015 22:49:46 +0530")
Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> writes:
> When replenishing Rx buffers driver updates the address of the
> buffer and the index of rx buffer in rx ring to the firmware.
> Change in order by CPU can cause rx ring corruption. Add memory
> barrier before updating rx buffer index to guarantee the order.
>
> This could fix some instances of rx ring corruption due to done
> bit in rx attention flag not set.
>
> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Thanks, applied to ath.git.
--
Kalle Valo
prev parent reply other threads:[~2015-01-13 14:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-09 17:19 [PATCH RESEND] ath10k: Fix potential Rx ring corruption Vasanthakumar Thiagarajan
2015-01-10 0:36 ` Ben Greear
2015-01-10 19:01 ` Ben Greear
[not found] ` <1420969591846.36256@qti.qualcomm.com>
2015-01-11 10:06 ` Vasanthakumar Thiagarajan
2015-01-11 15:33 ` Ben Greear
2015-01-13 14:22 ` Kalle Valo [this message]
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