netdev - Re: [PATCH] net/ethernet: cpsw: Bugfix interrupts before enabling napi

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Message-Id: <20131017.154844.1958017973482686300.davem@davemloft.net>
Date:	Thu, 17 Oct 2013 15:48:44 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	mpa@...gutronix.de
Cc:	florian@...nwrt.org, mugunthanvnm@...com, peter@...sgaard.com,
	linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
	kernel@...gutronix.de
Subject: Re: [PATCH] net/ethernet: cpsw: Bugfix interrupts before enabling
 napi

From: Markus Pargmann <mpa@...gutronix.de>
Date: Sun, 13 Oct 2013 21:17:01 +0200

> If interrupts happen before napi_enable was called, the driver will not
> work as expected. Network transmissions are impossible in this state.
> This bug can be reproduced easily by restarting the network interface in
> a loop. After some time any network transmissions on the network
> interface will fail.
> 
> This patch fixes the bug by enabling napi before enabling the network
> interface interrupts.
> 
> Signed-off-by: Markus Pargmann <mpa@...gutronix.de>

Applied, thanks.
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