From: Bruce Allan <bruce.w.allan@intel.com>
Date: Fri, 13 May 2011 07:19:53 +0000 (+0000)
Subject: e1000e: log when swflag is cleared unexpectedly on ICH/PCH devices
X-Git-Tag: v3.1-rc1~316^2~450^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5caf4825b22957e4ad70fd94316e91ce8cfb51c;p=pandora-kernel.git

e1000e: log when swflag is cleared unexpectedly on ICH/PCH devices

Since EXTCNF_CTRL.SWFLAG (used in the ownership arbitration of shared
resources, e.g. the PHY shared between the s/w, f/w, and h/w clients)
can be cleared by any of those clients, log a debug message when
software attempts to clear it and it is already cleared unexpectedly.
And since the swflag is cleared by a hardware reset, the driver does
not need to do that, but the mutex acquired when the bit is set must
still be cleared.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

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