[PATCH 5.11 091/306] net: hns3: fix bug when calculating the TCAM table info

[gregkh]

From: Greg Kroah-Hartman <gre...@linuxfoundation.org>

From: Jian Shen <shenjia...@huawei.com>

commit b36fc875bcdee56865c444a2cdae17d354a6d5f5 upstream.

The function hclge_fd_convert_tuple() is used to convert tuples
and tuples mask to TCAM x and y.  But it misuses the source mac
as source mac mask when convert INNER_SRC_MAC, which may cause
the flow director rule works unexpectedly. So fix it.

Fixes: 117328680288 ("net: hns3: Add input key and action config support for 
flow director")
Signed-off-by: Jian Shen <shenjia...@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazh...@huawei.com>
Signed-off-by: Jakub Kicinski <k...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -5194,9 +5194,9 @@ static bool hclge_fd_convert_tuple(u32 t
        case BIT(INNER_SRC_MAC):
                for (i = 0; i < ETH_ALEN; i++) {
                        calc_x(key_x[ETH_ALEN - 1 - i], rule->tuples.src_mac[i],
-                              rule->tuples.src_mac[i]);
+                              rule->tuples_mask.src_mac[i]);
                        calc_y(key_y[ETH_ALEN - 1 - i], rule->tuples.src_mac[i],
-                              rule->tuples.src_mac[i]);
+                              rule->tuples_mask.src_mac[i]);
                }
 
                return true;