diff options
| author | Huazhong Tan <tanhuazhong@huawei.com> | 2020-01-04 10:49:30 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-06 13:26:25 -0800 |
| commit | 7061867b59e0e5231b64655356c67ec31f44bc01 (patch) | |
| tree | a9e9f1370f629ebf36aa918a8bc9e4b17a7d5e61 /drivers/net/ethernet/hisilicon | |
| parent | 2af8cb6126f36ffad848d1b0af714c09eb801b9d (diff) | |
net: hns3: replace an unsuitable variable type in hclge_inform_reset_assert_to_vf()
In hclge_inform_reset_assert_to_vf(), variable reset_type(enum type)
will be copied into msg_data whose size is 2 bytes. Currently, hip08
is a little-endian machine, so the lower two bytes of reset_type will
be copied to msg_data. But when running on a big-endian machine,
msg_data will have a wrong value(the higher two bytes of reset_type).
So this patch modifies the type of reset_type to u16, and adds a
build check in case enum hnae3_reset_type has value larger than
U16_MAX.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index ed97bd6c03e6..6b131ab36c7e 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -164,6 +164,7 @@ enum hnae3_reset_type { HNAE3_IMP_RESET, HNAE3_UNKNOWN_RESET, HNAE3_NONE_RESET, + HNAE3_MAX_RESET, }; enum hnae3_flr_state { diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c index f905dd3386b3..a3c0822191a9 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c @@ -86,10 +86,12 @@ static int hclge_send_mbx_msg(struct hclge_vport *vport, u8 *msg, u16 msg_len, int hclge_inform_reset_assert_to_vf(struct hclge_vport *vport) { struct hclge_dev *hdev = vport->back; - enum hnae3_reset_type reset_type; + u16 reset_type; u8 msg_data[2]; u8 dest_vfid; + BUILD_BUG_ON(HNAE3_MAX_RESET > U16_MAX); + dest_vfid = (u8)vport->vport_id; if (hdev->reset_type == HNAE3_FUNC_RESET) |