Hi Sasha,

my patch should not go into the stable branches. Under certain circumstances it triggered kernel crashes.

Consequentially this patch has been reverted in the main development branch:

8eef5c3cea65 Revert "igc: fix a log entry using uninitialized netdev"

So I suggest to remove my patch 86167183a17e from the stable branches or apply 8eef5c3cea65 as well.

Sorry and thanks, Corinna

On Jul 5 15:29, Sasha Levin wrote:

This is a note to let you know that I've just added the patch titled

igc: fix a log entry using uninitialized netdev

to the 6.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: igc-fix-a-log-entry-using-uninitialized-netdev.patch and it can be found in the queue-6.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

commit ee112b3c8929ec718b444134db87e1c585eb7d70 Author: Corinna Vinschen vinschen@redhat.com Date: Tue Apr 23 12:24:54 2024 +0200

igc: fix a log entry using uninitialized netdev

[ Upstream commit 86167183a17e03ec77198897975e9fdfbd53cb0b ] 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 Reviewed-by: Hariprasad Kelam hkelam@marvell.com Acked-by: Vinicius Costa Gomes vinicius.gomes@intel.com Tested-by: Naama Meir naamax.meir@linux.intel.com Signed-off-by: Tony Nguyen anthony.l.nguyen@intel.com Signed-off-by: Sasha Levin sashal@kernel.org

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 58bc96021bb4c..07feb951be749 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -6932,8 +6932,6 @@ 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 */ @@ -6955,6 +6953,9 @@ 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);