From: Bruce Allan <bruce.w.allan@intel.com>
Date: Thu, 17 Jun 2010 18:58:43 +0000 (+0000)
Subject: e1000e: avoid polling h/w registers during link negotiation
X-Git-Tag: v2.6.36-rc1~571^2~518
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c6bdb3084d015221270b418190b630553a38cf8;p=pandora-kernel.git

e1000e: avoid polling h/w registers during link negotiation

Avoid touching hardware registers when possible, otherwise link negotiation
can get messed up when user-level scripts are rapidly polling the driver to
see if/when link is up.  Use the saved link state information instead when
possible.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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