Commit 7edebf9a authored Aug 27, 2011 by Emil Tantilov Committed by Jeff Kirsher Oct 05, 2011

ixgbe: prevent link checks while resetting



It some situations the driver sets __IXGBE_RESETTING and then
__IXGBE_DOWN flags. It is possible a link check may sneak in
between.

This patch adds check for both flags.
The idea is to reduce register reads while the PHY is resetting.

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>

parent 8ce9d6c7

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -5978,7 +5978,8 @@ static void ixgbe_spoof_check(struct ixgbe_adapter *adapter)
		static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter)
		{
		/* if interface is down do nothing */
		if (test_bit(__IXGBE_DOWN, &adapter->state))
		if (test_bit(__IXGBE_DOWN, &adapter->state) \|\|
		test_bit(__IXGBE_RESETTING, &adapter->state))
		return;

		ixgbe_watchdog_update_link(adapter);