From: Vadim Fedorenko Date: Wed, 30 Apr 2025 17:03:43 +0000 (-0700) Subject: bnxt_en: fix module unload sequence X-Git-Tag: v6.15-rc5~22^2~8 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=927069d5c40c1cfa7b2d13cfc6d7d58bc6f85c50;p=thirdparty%2Flinux.git bnxt_en: fix module unload sequence Recent updates to the PTP part of bnxt changed the way PTP FIFO is cleared, skbs waiting for TX timestamps are now cleared during ndo_close() call. To do clearing procedure, the ptp structure must exist and point to a valid address. Module destroy sequence had ptp clear code running before netdev close causing invalid memory access and kernel crash. Change the sequence to destroy ptp structure after device close. Fixes: 8f7ae5a85137 ("bnxt_en: improve TX timestamping FIFO configuration") Reported-by: Taehee Yoo Closes: https://lore.kernel.org/netdev/CAMArcTWDe2cd41=ub=zzvYifaYcYv-N-csxfqxUvejy_L0D6UQ@mail.gmail.com/ Signed-off-by: Vadim Fedorenko Reviewed-by: Jacob Keller Reviewed-by: Michael Chan Tested-by: Taehee Yoo Link: https://patch.msgid.link/20250430170343.759126-1-vadfed@meta.com Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 78e496b0ec262..86a5de44b6f3f 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -16006,8 +16006,8 @@ static void bnxt_remove_one(struct pci_dev *pdev) bnxt_rdma_aux_device_del(bp); - bnxt_ptp_clear(bp); unregister_netdev(dev); + bnxt_ptp_clear(bp); bnxt_rdma_aux_device_uninit(bp);