AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/net/ethernet/hisilicon
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Fuyun Liang bcdb12b70c net: hns3: fix for multiple unmapping DMA problem 
When sending a big fragment using multiple buffer descriptor,
hns3 does one maping, but do multiple unmapping when tx is done,
which may cause unmapping problem.

To fix it, this patch makes sure the value of desc_cb.length of
the non-first bd is zero. If desc_cb.length is zero, we do not
unmap the buffer.

Fixes: 76ad4f0ee7 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-16 10:09:59 -07:00
..
hns Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-03 21:00:17 -07:00
hns3 net: hns3: fix for multiple unmapping DMA problem 2018-10-16 10:09:59 -07:00
hip04_eth.c net: hns3: fix return type of ndo_start_xmit function 2018-09-18 20:01:25 -07:00
hisi_femac.c drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
hix5hd2_gmac.c net: hns3: fix return type of ndo_start_xmit function 2018-09-18 20:01:25 -07:00
hns_mdio.c net: hns: Fix a wrong op phy C45 code 2017-07-08 11:05:21 +01:00
Kconfig net: hns3: give default option while dependency HNS3 set 2018-07-02 22:49:14 +09:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00