From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 26 Jun 2014 17:06:46 +0000 (-0700)
Subject: net: systemport: fix TX NAPI work done return value
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~289^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=16f62d9bed0cdee5f9341b64cc7144869282122d;p=pandora-kernel.git

net: systemport: fix TX NAPI work done return value

Although we do not limit the number of packets the TX completion
function bcm_sysport_tx_reclaim() is allowed to reclaim, we were still
using its return value as-is. This means that we could hit the WARN() in
net/core/dev.c where work_done >= budget.

Make sure we do exit the NAPI context when the TX ring is empty, and
pretend there was no work to do.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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