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authorKohei Enju <[email protected]>2025-08-15 06:26:31 +0000
committerTony Nguyen <[email protected]>2025-09-09 16:48:30 +0000
commitd709f178abca22a4d3642513df29afe4323a594b (patch)
tree8ccc98f6e22daae927e95522dc8fbf75aed8f5f3 /drivers/net/ethernet/intel/igb/igb_ethtool.c
parentigb: Fix NULL pointer dereference in ethtool loopback test (diff)
downloadkernel-d709f178abca22a4d3642513df29afe4323a594b.tar.gz
kernel-d709f178abca22a4d3642513df29afe4323a594b.zip
igb: fix link test skipping when interface is admin down
The igb driver incorrectly skips the link test when the network interface is admin down (if_running == false), causing the test to always report PASS regardless of the actual physical link state. This behavior is inconsistent with other drivers (e.g. i40e, ice, ixgbe, etc.) which correctly test the physical link state regardless of admin state. Remove the if_running check to ensure link test always reflects the physical link state. Fixes: 8d420a1b3ea6 ("igb: correct link test not being run when link is down") Signed-off-by: Kohei Enju <[email protected]> Reviewed-by: Paul Menzel <[email protected]> Tested-by: Rinitha S <[email protected]> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/igb/igb_ethtool.c')
-rw-r--r--drivers/net/ethernet/intel/igb/igb_ethtool.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 92ef33459aec..7b8f32c5169a 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2081,11 +2081,8 @@ static void igb_diag_test(struct net_device *netdev,
} else {
dev_info(&adapter->pdev->dev, "online testing starting\n");
- /* PHY is powered down when interface is down */
- if (if_running && igb_link_test(adapter, &data[TEST_LINK]))
+ if (igb_link_test(adapter, &data[TEST_LINK]))
eth_test->flags |= ETH_TEST_FL_FAILED;
- else
- data[TEST_LINK] = 0;
/* Online tests aren't run; pass by default */
data[TEST_REG] = 0;