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authorRuss White <russ@riw.us>2021-09-10 20:29:53 +0200
committerGitHub <noreply@github.com>2021-09-10 20:29:53 +0200
commit3e2321b88c4d2ff1f3dadfcc1b6cfd8d5e785f87 (patch)
treea9ff89fd339f4b6da8abbaea4fe13c318a95801c /ospf6d/ospf6_abr.c
parentMerge pull request #9597 from donaldsharp/ospf6_header_cleanup (diff)
parentospf6d: break early on route prefix mismatch (diff)
downloadfrr-3e2321b88c4d2ff1f3dadfcc1b6cfd8d5e785f87.tar.xz
frr-3e2321b88c4d2ff1f3dadfcc1b6cfd8d5e785f87.zip
Merge pull request #9019 from pjdruddy/ospfv3-early-break-list-walk
ospf6d: break early on route prefix mismatch
Diffstat (limited to 'ospf6d/ospf6_abr.c')
-rw-r--r--ospf6d/ospf6_abr.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/ospf6d/ospf6_abr.c b/ospf6d/ospf6_abr.c
index aa8547567..fe1845907 100644
--- a/ospf6d/ospf6_abr.c
+++ b/ospf6d/ospf6_abr.c
@@ -1201,9 +1201,16 @@ void ospf6_abr_examin_summary(struct ospf6_lsa *lsa, struct ospf6_area *oa)
__func__, &prefix, listcount(old->paths));
}
for (old_route = old; old_route; old_route = old_route->next) {
- if (!ospf6_route_is_same(old_route, route) ||
- (old_route->type != route->type) ||
- (old_route->path.type != route->path.type))
+
+ /* The route linked-list is grouped in batches of prefix.
+ * If the new prefix is not the same as the one of interest
+ * then we have walked over the end of the batch and so we
+ * should break rather than continuing unnecessarily.
+ */
+ if (!ospf6_route_is_same(old_route, route))
+ break;
+ if ((old_route->type != route->type)
+ || (old_route->path.type != route->path.type))
continue;
if ((ospf6_route_cmp(route, old_route) != 0)) {