netdev - Re: [PATCH net-next 1/1] net: fec: clear receive interrupts before processing a packet

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Message-Id: <20150902.160712.836608694994691635.davem@davemloft.net>
Date:	Wed, 02 Sep 2015 16:07:12 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	b38611@...escale.com
Cc:	netdev@...r.kernel.org, linux@....linux.org.uk, phdm@...q.eu
Subject: Re: [PATCH net-next 1/1] net: fec: clear receive interrupts before
 processing a packet

From: Fugang Duan <b38611@...escale.com>
Date: Wed, 2 Sep 2015 17:24:14 +0800

> From: Russell King <rmk+kernel@....linux.org.uk>
> 
> The patch just to re-submit the patch "db3421c114cfa6326" because the
> patch "4d494cdc92b3b9a0" remove the change.
> 
> Clear any pending receive interrupt before we process a pending packet.
> This helps to avoid any spurious interrupts being raised after we have
> fully cleaned the receive ring, while still allowing an interrupt to be
> raised if we receive another packet.
> 
> The position of this is critical: we must do this prior to reading the
> next packet status to avoid potentially dropping an interrupt when a
> packet is still pending.
> 
> Acked-by: Fugang Duan <B38611@...escale.com>
> Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>

Applied and queued up for -stable, thanks.
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