Patch "net: hns3: fix fail to delete tc flower rules during reset issue" has been added to the 5.15-stable tree

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

    net: hns3: fix fail to delete tc flower rules during reset issue

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-hns3-fix-fail-to-delete-tc-flower-rules-during-r.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 4afbdef3269c824ea649bd639d6a951e3b15ceba
Author: Jijie Shao <shaojijie@xxxxxxxxxx>
Date:   Mon Sep 18 15:48:39 2023 +0800

    net: hns3: fix fail to delete tc flower rules during reset issue
    
    [ Upstream commit 1a7be66e4685b8541546222c305cce9710718a88 ]
    
    Firmware does not respond driver commands during reset
    Therefore, rule will fail to delete while the firmware is resetting
    
    So, if failed to delete rule, set rule state to TO_DEL,
    and the rule will be deleted when periodic task being scheduled.
    
    Fixes: 0205ec041ec6 ("net: hns3: add support for hw tc offload of tc flower")
    Signed-off-by: Jijie Shao <shaojijie@xxxxxxxxxx>
    Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 998ee681b1171..0f522daf8e3ab 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -7546,6 +7546,12 @@ static int hclge_del_cls_flower(struct hnae3_handle *handle,
 	ret = hclge_fd_tcam_config(hdev, HCLGE_FD_STAGE_1, true, rule->location,
 				   NULL, false);
 	if (ret) {
+		/* if tcam config fail, set rule state to TO_DEL,
+		 * so the rule will be deleted when periodic
+		 * task being scheduled.
+		 */
+		hclge_update_fd_list(hdev, HCLGE_FD_TO_DEL, rule->location, NULL);
+		set_bit(HCLGE_STATE_FD_TBL_CHANGED, &hdev->state);
 		spin_unlock_bh(&hdev->fd_rule_lock);
 		return ret;
 	}



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