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

net: hns3: fix the bug when map buffer fail

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: net-hns3-fix-the-bug-when-map-buffer-fail.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: Mon, 23 Oct 2017 19:51:02 +0800 Subject: net: hns3: fix the bug when map buffer fail

From: Lipeng lipeng321@huawei.com

[ Upstream commit 564883bb4dc1a4f3cba6344e77743175694b0761 ]

If one buffer had been recieved to stack, driver will alloc a new buffer, map the buffer to device and replace the old buffer. When map fail, should only free the new alloced buffer, but not free all buffers in the ring.

Fixes: 76ad4f0 (net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC)

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/hns3_enet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c @@ -1546,7 +1546,7 @@ static int hns3_reserve_buffer_map(struc return 0;

out_with_buf: - hns3_free_buffers(ring); + hns3_free_buffer(ring, cb); out: return ret; }

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