e1000e: Add code to check for failure of pci_disable_link_state call
This patch attempts to work around a problem found with some systems where the call to pci_diable_link_state_locked() fails. As a result, ASPM is not, in fact, disabled. Changing disable ASPM code to check if state actually is disabled after the call and, if not, try another way to disable it. Signed-off-by: NCarolyn Wyborny <carolyn.wyborny@intel.com> Acked-by: NBruce W. Allan <bruce.w.allan@intel.com> Tested-by: NPavel Machek <pavel@ucw.cz> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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