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Message-ID: <20240508173342.2760994-7-anthony.l.nguyen@intel.com>
Date: Wed, 8 May 2024 10:33:38 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
kuba@...nel.org,
pabeni@...hat.com,
edumazet@...gle.com,
netdev@...r.kernel.org
Cc: Corinna Vinschen <vinschen@...hat.com>,
anthony.l.nguyen@...el.com,
sasha.neftin@...el.com,
richardcochran@...il.com,
Hariprasad Kelam <hkelam@...vell.com>,
Vinicius Costa Gomes <vinicius.gomes@...el.com>,
Naama Meir <naamax.meir@...ux.intel.com>
Subject: [PATCH net-next 6/7] igc: fix a log entry using uninitialized netdev
From: Corinna Vinschen <vinschen@...hat.com>
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@...hat.com>
Reviewed-by: Hariprasad Kelam <hkelam@...vell.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Tested-by: Naama Meir <naamax.meir@...ux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.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 c30f0f572600..b5bcabab7a1d 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -7028,8 +7028,6 @@ 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 */
@@ -7051,6 +7049,9 @@ 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);
--
2.41.0
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