From: Emil Tantilov <emil.s.tantilov@intel.com>
Date: Tue, 28 Oct 2014 05:50:03 +0000 (+0000)
Subject: ixgbe: fix race when setting advertised speed
X-Git-Tag: omap-for-v3.19/fixes-not-urgent-part1~25^2~15^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3215f0ac77ec23b052cb0bf511143038ac2ad7b;p=pandora-kernel.git

ixgbe: fix race when setting advertised speed

Following commands:

modprobe ixgbe
ifconfig ethX up
ethtool -s ethX advertise 0x020

can lead to "setup link failed with code -14" error due to the setup_link
call racing with the SFP detection routine in the watchdog.

This patch resolves this issue by protecting the setup_link call with check
for __IXGBE_IN_SFP_INIT.

Reported-by: Scott Harrison <scoharr2@cisco.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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