Patch "net: hns3: fix a bug when alloc new buffer" has been added to the 4.14-stable tree

Patch "net: hns3: fix a bug when alloc new buffer" 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 when alloc new buffer

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-when-alloc-new-buffer.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 19:51:01 +0800
Subject: net: hns3: fix a bug when alloc new buffer

From: Lipeng <lipeng321@huawei.com>


[ Upstream commit b9077428ec5569aacb2952d8a2ffb51c8988d3c2 ]

When alloce new buffer to HW, should unmap the old buffer first.
This old code map the old buffer but not unmap the old buffer,
this patch fixes it.

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
@@ -1586,7 +1586,7 @@ out_buffer_fail:
 static void hns3_replace_buffer(struct hns3_enet_ring *ring, int i,
 				struct hns3_desc_cb *res_cb)
 {
-	hns3_map_buffer(ring, &ring->desc_cb[i]);
+	hns3_unmap_buffer(ring, &ring->desc_cb[i]);
 	ring->desc_cb[i] = *res_cb;
 	ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma);
 }


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