Patch "net: hns3: fix a bug in hclge_uninit_client_instance" has been added to the 4.14-stable tree

Patch "net: hns3: fix a bug in hclge_uninit_client_instance" has been added to the 4.14-stable tree

[gregkh]

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

    net: hns3: fix a bug in hclge_uninit_client_instance

to the 4.14-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-a-bug-in-hclge_uninit_client_instance.patch
and it can be found in the queue-4.14 subdirectory.

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


>From foo@baz Mon Dec 18 13:28:59 CET 2017
From: Lipeng <lipeng321@huawei.com>
Date: Tue, 24 Oct 2017 21:02:11 +0800
Subject: net: hns3: fix a bug in hclge_uninit_client_instance

From: Lipeng <lipeng321@huawei.com>


[ Upstream commit a17dcf3f0124698d1120da71574bf4c339e5a368 ]

HNS3 driver initialize hdev->roce_client and vport->roce.client in
hclge_init_client_instance, and need set hdev->roce_client and
vport->roce.client NULL.

If do not set them NULL when uninit, it will fail in the scene:
insmod hns3.ko, hns-roce.ko, hns-roce-hw-v3.ko successfully, but
rmmod hns3.ko after rmmod hns-roce-hw-v2.ko and hns-roce.ko.
This patch fixes the issue.

Fixes: 46a3df9 (net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support)

Signed-off-by: Lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -4007,13 +4007,19 @@ static void hclge_uninit_client_instance
 
 	for (i = 0; i < hdev->num_vmdq_vport + 1; i++) {
 		vport = &hdev->vport[i];
-		if (hdev->roce_client)
+		if (hdev->roce_client) {
 			hdev->roce_client->ops->uninit_instance(&vport->roce,
 								0);
+			hdev->roce_client = NULL;
+			vport->roce.client = NULL;
+		}
 		if (client->type == HNAE3_CLIENT_ROCE)
 			return;
-		if (client->ops->uninit_instance)
+		if (client->ops->uninit_instance) {
 			client->ops->uninit_instance(&vport->nic, 0);
+			hdev->nic_client = NULL;
+			vport->nic.client = NULL;
+		}
 	}
 }
 


Patches currently in stable-queue which might be from lipeng321@huawei.com are

queue-4.14/net-hns3-fix-the-tx-rx-ring.queue_index-in-hns3_ring_get_cfg.patch
queue-4.14/net-hns3-fix-the-bug-when-map-buffer-fail.patch
queue-4.14/net-hns3-fix-a-bug-when-alloc-new-buffer.patch
queue-4.14/net-hns3-fix-the-bug-of-hns3_set_txbd_baseinfo.patch
queue-4.14/net-hns3-fix-a-bug-in-hclge_uninit_client_instance.patch
queue-4.14/net-hns3-fix-a-misuse-to-devm_free_irq.patch
queue-4.14/net-hns3-fix-for-getting-advertised_caps-in-hns3_get_link_ksettings.patch
queue-4.14/net-hns3-add-nic_client-check-when-initialize-roce-base-information.patch