net: hns3: delay ring buffer clearing during reset

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The driver may not be able to disable the ring through firmware
when downing the netdev during reset process, which may cause
hardware accessing freed buffer problem.

This patch delays the ring buffer clearing to reset uninit
process because hardware will not access the ring buffer after
hardware reset is completed.

Fixes: bb6b94a896 ("net: hns3: Add reset interface implementation in client")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Yunsheng Lin 2019-06-13 17:12:31 +08:00 • committed by David S. Miller

parent 8f9eed1a87

commit 3a30964a2e

1 changed files with 14 additions and 5 deletions

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19

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

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