[PATCH net-next V2 2/2] cls_flower: Fix comparing of old filter mask with new filter

[Paul Blakey]

We incorrectly compare the mask and the result is that we can't modify
an already existing rule.

Fix that by comparing correctly.

Fixes: 05cd271fd61a ("cls_flower: Support multiple masks per priority")
Reported-by: Vlad Buslov <vla...@mellanox.com>
Reviewed-by: Roi Dayan <r...@mellanox.com>
Reviewed-by: Jiri Pirko <j...@mellanox.com>
Signed-off-by: Paul Blakey <pa...@mellanox.com>
---

Changelog: v0 -> v2: rebased.

 net/sched/cls_flower.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 159efd9..2b5be42 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -877,7 +877,7 @@ static int fl_check_assign_mask(struct cls_fl_head *head,
                        return PTR_ERR(newmask);
 
                fnew->mask = newmask;
-       } else if (fold && fold->mask == fnew->mask) {
+       } else if (fold && fold->mask != fnew->mask) {
                return -EINVAL;
        }
 
-- 
2.7.4