e1000e: Fix check_for_link return value with autoneg off

[ Upstream commit 4e7dc08e57c95673d2edaba8983c3de4dd1f65f5 ]

When autoneg is off, the .check_for_link callback functions clear the
get_link_status flag and systematically return a "pseudo-error". This means
that the link is not detected as up until the next execution of the
e1000_watchdog_task() 2 seconds later.

Fixes: 19110cfbb34d ("e1000e: Separate signaling for link check/link up")
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 31277d3bb7dc1241032695d2d9424779654f4f5f..ff308b05d68cc91efa7b195db9952d368553557f 100644 (file)
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -1602,7 +1602,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
         * we have already determined whether we have link or not.
         */
        if (!mac->autoneg)
-               return -E1000_ERR_CONFIG;
+               return 1;
 
        /* Auto-Neg is enabled.  Auto Speed Detection takes care
         * of MAC speed/duplex configuration.  So we only need to

diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c
index f457c5703d0c45d4c9f661395acca1a9814de686..db735644b31214e8c35216d35642531c713abbb1 100644 (file)
--- a/drivers/net/ethernet/intel/e1000e/mac.c
+++ b/drivers/net/ethernet/intel/e1000e/mac.c
@@ -450,7 +450,7 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
         * we have already determined whether we have link or not.
         */
        if (!mac->autoneg)
-               return -E1000_ERR_CONFIG;
+               return 1;
 
        /* Auto-Neg is enabled.  Auto Speed Detection takes care
         * of MAC speed/duplex configuration.  So we only need to