From: Yunsheng Lin Date: Fri, 1 Jun 2018 16:52:05 +0000 (+0100) Subject: net: hns3: Fix for service_task not running problem after resetting X-Git-Tag: v4.17.12~277 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0f55e97f4411d94afe9cbf0459ba5d512950d47;p=thirdparty%2Fkernel%2Fstable.git net: hns3: Fix for service_task not running problem after resetting [ Upstream commit f5be79673fc4c925708c99ec37d77e0a2c3cd30b ] When hclge_ae_stop is called during resetting, it will cancel the service_task by calling cancel_work_sync, which may cause the service_task to exit without clearing HCLGE_STATE_SERVICE_SCHED bit. If this happens, the service_task will never run again. This patch fixes this problem by clearing it after calling cancel_work_sync in hclge_ae_stop. Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support") Signed-off-by: Yunsheng Lin Signed-off-by: Peng Li Signed-off-by: Salil Mehta Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 8ce6ab07ffec7..48fde9fc67702 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -3802,6 +3802,7 @@ static void hclge_ae_stop(struct hnae3_handle *handle) del_timer_sync(&hdev->service_timer); cancel_work_sync(&hdev->service_task); + clear_bit(HCLGE_STATE_SERVICE_SCHED, &hdev->state); if (test_bit(HCLGE_STATE_RST_HANDLING, &hdev->state)) { hclge_mac_stop_phy(hdev); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index 0e4eb2770cbc5..53bae9317f923 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -1323,6 +1323,7 @@ static void hclgevf_ae_stop(struct hnae3_handle *handle) hclgevf_reset_tqp_stats(handle); del_timer_sync(&hdev->service_timer); cancel_work_sync(&hdev->service_task); + clear_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state); hclgevf_update_link_status(hdev, 0); }