net: sched: cls_flower: propagate extack support for filter offload

Propagate the extack pointer from the `->change()` classifier operation
to the function used for filter replacement in cls_flower. This makes it
possible to use netlink extack messages in the future at replacement
time for this filter, although it is not used at this point.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index c6ac4a6..f675a92 100644 (file)
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -235,7 +235,8 @@ static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f)
 static int fl_hw_replace_filter(struct tcf_proto *tp,
                                struct flow_dissector *dissector,
                                struct fl_flow_key *mask,
-                               struct cls_fl_filter *f)
+                               struct cls_fl_filter *f,
+                               struct netlink_ext_ack *extack)
 {
        struct tc_cls_flower_offload cls_flower = {};
        struct tcf_block *block = tp->chain->block;
@@ -943,7 +944,8 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
                err = fl_hw_replace_filter(tp,
                                           &head->dissector,
                                           &mask.key,
-                                          fnew);
+                                          fnew,
+                                          extack);
                if (err)
                        goto errout_idr;
        }