From: Sriram <srk@ti.com>
Date: Thu, 12 Nov 2009 01:55:42 +0000 (+0000)
Subject: TI Davinci EMAC : Fix Console Hang when bringing the interface down
X-Git-Tag: v2.6.32-rc8~10^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5bfa2a17f2b79eb6a63c5d47ce89d5798bba086a;p=pandora-kernel.git

TI Davinci EMAC : Fix Console Hang when bringing the interface down

In the NAPI poll function(emac_poll), check for netif_running()
is unnecassary. In addition to associated runtime overhead, it
also results in a continuous softirq loop when the interface is
brought down under heavy traffic(tested wit Traffic Generator).
Once the interface is disabled, the poll function always returns
zero(with the check for netif_running) and napi_complete() would
never get called resulting in softirq loop.

Signed-off-by: Sriramakrishnan <srk@ti.com>
Acked-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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