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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jacob Keller , Simon Horman , Akihiko Odaki , Kees Cook , Bjorn Helgaas , Aleksandr Loktionov , Lin Ma , intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Marshall Shao Subject: [PATCH] Fix kernel panic issue after removing igb driver Date: Fri, 11 Aug 2023 20:02:25 +0800 Message-Id: <20230811120225.4133-1-marshall.shao@dell.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-11_03,2023-08-10_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 priorityscore=1501 clxscore=1011 adultscore=0 lowpriorityscore=0 mlxscore=0 suspectscore=0 spamscore=0 malwarescore=0 bulkscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308110110 X-Proofpoint-GUID: xqGwpcQLF5tzQcuKVkEEZC-RroAGpiWE X-Proofpoint-ORIG-GUID: xqGwpcQLF5tzQcuKVkEEZC-RroAGpiWE X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 priorityscore=1501 malwarescore=0 phishscore=0 impostorscore=0 clxscore=1015 suspectscore=0 lowpriorityscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308110110 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Marshall Shao This patch fixes a kernel panic issue after removing the igb driver=20 from the usermode. A delayed work will be schedule in igb_ptp_init(), if (adapter->ptp_flags & IGB_PTP_OVERFLOW_CHECK) INIT_DELAYED_WORK(&adapter->ptp_overflow_work, igb_ptp_overflow_check); If CONFIG_PTP_1588_CLOCK is not enabled, the delayed work cannot be cancelled when igb_ptp_suspend is called. Signed-off-by: Marshall Shao --- drivers/net/ethernet/intel/igb/igb_ptp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/etherne= t/intel/igb/igb_ptp.c index 405886ee5261..b21822ea1c7d 100644 --- a/drivers/net/ethernet/intel/igb/igb_ptp.c +++ b/drivers/net/ethernet/intel/igb/igb_ptp.c @@ -1435,12 +1435,12 @@ void igb_ptp_sdp_init(struct igb_adapter *adapter) */ void igb_ptp_suspend(struct igb_adapter *adapter) { - if (!(adapter->ptp_flags & IGB_PTP_ENABLED)) - return; - if (adapter->ptp_flags & IGB_PTP_OVERFLOW_CHECK) cancel_delayed_work_sync(&adapter->ptp_overflow_work); =20 + if (!(adapter->ptp_flags & IGB_PTP_ENABLED)) + return; + cancel_work_sync(&adapter->ptp_tx_work); if (adapter->ptp_tx_skb) { dev_kfree_skb_any(adapter->ptp_tx_skb); --=20 2.34.1