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

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Message-ID: <525E8D7C.5050702@ti.com>
Date:	Wed, 16 Oct 2013 18:28:36 +0530
From:	Mugunthan V N <mugunthanvnm@...com>
To:	Markus Pargmann <mpa@...gutronix.de>,
	"David S. Miller" <davem@...emloft.net>
CC:	Florian Fainelli <florian@...nwrt.org>,
	Peter Korsgaard <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

On Monday 14 October 2013 12:47 AM, Markus Pargmann wrote:
> 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>
Acked-by: Mugunthan V N <mugunthanvnm@...com>

Regards
Mugunthan V N
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