net: hns3: fix inconsistent vf id print

mainline inclusion
from mainline-v5.15-rc3
commit 91bc0d52
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4CVS3
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=91bc0d5272d3

----------------------------------------------------------------------

The vf id from ethtool is added 1 before configured to driver.
So it's necessary to minus 1 when printing it, in order to
keep consistent with user's configuration.

Fixes: dd74f815 ("net: hns3: Add support for rule add/delete for flow director")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Reviewed-by: NYongxin Li <liyongxin1@huawei.com>
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

@@ -6642,10 +6642,13 @@ static int hclge_fd_parse_ring_cookie(struct hclge_dev *hdev, u64 ring_cookie,
 		u8 vf = ethtool_get_flow_spec_ring_vf(ring_cookie);
 		u16 tqps;
 
+		/* To keep consistent with user's configuration, minus 1 when
+		 * printing 'vf', because vf id from ethtool is added 1 for vf.
+		 */
 		if (vf > hdev->num_req_vfs) {
 			dev_err(&hdev->pdev->dev,
-				"Error: vf id (%u) > max vf num (%u)\n",
-				vf, hdev->num_req_vfs);
+				"Error: vf id (%u) should be less than %u\n",
+				vf - 1, hdev->num_req_vfs);
 			return -EINVAL;
 		}