net: hns3: add barrier in vf mailbox reply process

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[ Upstream commit ac92c0a9a0 ]

In hclgevf_mbx_handler() and hclgevf_get_mbx_resp() functions,
there is a typical store-store and load-load scenario between
received_resp and additional_info. This patch adds barrier
to fix the problem.

Fixes: 4671042f1e ("net: hns3: add match_id to check mailbox response from PF to VF")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Yonglong Liu 2023-11-10 17:37:08 +08:00 • committed by Greg Kroah-Hartman

parent 61c5ba5042

commit 5dc440293d

1 changed files with 7 additions and 0 deletions

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drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c

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