From: Govindarajulu Varadarajan <_govind@gmx.com>
Date: Wed, 1 Jul 2015 08:51:57 +0000 (+0530)
Subject: enic: fix issues in enic_poll
X-Git-Tag: omap-for-v4.3/fixes-merge-window~247^2~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=25c14ef86a0d5ec9320e833685c15bc96f504864;p=pandora-kernel.git

enic: fix issues in enic_poll

In enic_poll, we clean tx and rx queues, when low latency busy socket polling
is happening, enic_poll will only clean tx queue. After cleaning tx, it should
return total budget for re-poll.

There is a small window between vnic_intr_unmask() and enic_poll_unlock_napi().
In this window if an irq occurs and napi is scheduled on different cpu, it tries
to acquire enic_poll_lock_napi() and fails. Unlock napi_poll before unmasking
the interrupt.

v2:
Do not change tx wonk done behaviour. Consider only rx work done for completing
napi.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed