ematch: Fix matching of inverted containers.
Negated expressions and sub-expressions need to have their flags checked for
TCF_EM_INVERT and their result negated accordingly.
Signed-off-by: Ignacy Gawędzki <ignacy.gawedzki@green-communications.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/ematch.c b/net/sched/ematch.c
index 3a633de..ad57f44 100644
--- a/net/sched/ematch.c
+++ b/net/sched/ematch.c
@@ -526,9 +526,11 @@
match_idx = stack[--stackp];
cur_match = tcf_em_get_match(tree, match_idx);
- if (tcf_em_early_end(cur_match, res))
+ if (tcf_em_early_end(cur_match, res)) {
+ if (tcf_em_is_inverted(cur_match))
+ res = !res;
goto pop_stack;
- else {
+ } else {
match_idx++;
goto proceed;
}