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* [Intel-wired-lan] [PATCH] igc: fix a log entry using uninitialized netdev
@ 2024-04-23 10:24 ` Corinna Vinschen
  0 siblings, 0 replies; 13+ messages in thread
From: Corinna Vinschen @ 2024-04-23 10:24 UTC (permalink / raw)
  To: netdev, intel-wired-lan

During successful probe, igc logs this:

[    5.133667] igc 0000:01:00.0 (unnamed net_device) (uninitialized): PHC added
                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The reason is that igc_ptp_init() is called very early, even before
register_netdev() has been called. So the netdev_info() call works
on a partially uninitialized netdev.

Fix this by calling igc_ptp_init() after register_netdev(), right
after the media autosense check, just as in igb.  Add a comment,
just as in igb.

Now the log message is fine:

[    5.200987] igc 0000:01:00.0 eth0: PHC added

Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index d9bd001af7ba..e5900d004071 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -6927,8 +6927,6 @@ static int igc_probe(struct pci_dev *pdev,
 	device_set_wakeup_enable(&adapter->pdev->dev,
 				 adapter->flags & IGC_FLAG_WOL_SUPPORTED);
 
-	igc_ptp_init(adapter);
-
 	igc_tsn_clear_schedule(adapter);
 
 	/* reset the hardware with the new settings */
@@ -6950,6 +6948,9 @@ static int igc_probe(struct pci_dev *pdev,
 	/* Check if Media Autosense is enabled */
 	adapter->ei = *ei;
 
+	/* do hw tstamp init after resetting */
+	igc_ptp_init(adapter);
+
 	/* print pcie link status and MAC address */
 	pcie_print_link_status(pdev);
 	netdev_info(netdev, "MAC: %pM\n", netdev->dev_addr);
-- 
2.44.0


^ permalink raw reply related	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2024-05-07  9:00 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-04-23 10:24 [Intel-wired-lan] [PATCH] igc: fix a log entry using uninitialized netdev Corinna Vinschen
2024-04-23 10:24 ` Corinna Vinschen
2024-04-23 10:49 ` [Intel-wired-lan] " Hariprasad Kelam
2024-04-23 10:49   ` Hariprasad Kelam
2024-04-24 22:34 ` [Intel-wired-lan] " Andrew Lunn
2024-04-24 22:34   ` Andrew Lunn
2024-04-25  0:06   ` [Intel-wired-lan] " Vinicius Costa Gomes
2024-04-25  0:06     ` Vinicius Costa Gomes
2024-04-25  7:47     ` [Intel-wired-lan] " Corinna Vinschen
2024-04-25  7:47       ` Corinna Vinschen
2024-04-25 18:46       ` Vinicius Costa Gomes
2024-04-25 18:46         ` Vinicius Costa Gomes
2024-05-07  9:00 ` naamax.meir

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