From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 12 Nov 2014 23:40:43 +0000 (-0800)
Subject: net: systemport: fix tx work done in TX napi poll
X-Git-Tag: omap-for-v3.19/fixes-rc1~125^2~201
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9dfa9a27b620640322588df399eb8f624b48d877;p=pandora-kernel.git

net: systemport: fix tx work done in TX napi poll

With commit d75b1ade567 ("net: less interrupt masking in NAPI") napi
repoll is done only when work_done == budget. bcm_sysport_tx_poll()
always returns 0 whether or not we completed the poll quantum.

Fix this by returning either 0 when we did complete the TX ring reclaim,
or budget to trigger a repoll.

Fixes: d75b1ade567 ("net: less interrupt masking in NAPI")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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