5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Vadim Fedorenko [ Upstream commit f6f955cbf9d4e02deebe54ca91c118b53be9ffe6 ] The shutdown callback was never implemented for this driver, but it's needed because .remove() callback is never called during kexec/reboot process. That leaves HW with some interrupts enabled and may cause spurious interrupt while booting into a new kernel during with kexec. If it happens that I2C interrupt fires during kexec, the whole I2C bus is disabled leaving TimeCard with no devlink communication. The same happens if timestampers were enabled, leaving the card without timestamper interrupts until full reboot cycle. Implement .shutdown() callback with the same function as remove callback. Signed-off-by: Vadim Fedorenko Link: https://patch.msgid.link/20260611190333.787132-1-vadim.fedorenko@linux.dev Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/ptp/ptp_ocp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c index 22accc0222451..e5aa923cb0f55 100644 --- a/drivers/ptp/ptp_ocp.c +++ b/drivers/ptp/ptp_ocp.c @@ -1506,6 +1506,7 @@ static struct pci_driver ptp_ocp_driver = { .id_table = ptp_ocp_pcidev_id, .probe = ptp_ocp_probe, .remove = ptp_ocp_remove, + .shutdown = ptp_ocp_remove, }; static int -- 2.53.0