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authorDonald Sharp <sharpd@nvidia.com>2021-08-09 08:01:06 -0400
committerDonald Sharp <sharpd@nvidia.com>2021-08-09 08:06:33 -0400
commit38c764dde42b605e12a35d3bcb5b93cf72272d30 (patch)
tree31e90d3cb8e321f37449e26d9ba3bbe83904682d /zebra/zebra_rib.c
parentf94a7703c0725766f7dd91931718d3869ed28116 (diff)
zebra: Properly note add/update for rib_add_multipath_nhe
When calling rib_add_multipath_nhe ensure that we have well aligned return codes that mean something so that interersted parties can properly handle the situation. Signed-off-by: Donald Sharp <sharpd@nvidia.com>
Diffstat (limited to 'zebra/zebra_rib.c')
-rw-r--r--zebra/zebra_rib.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/zebra/zebra_rib.c b/zebra/zebra_rib.c
index c51dd759a6..2ed025857d 100644
--- a/zebra/zebra_rib.c
+++ b/zebra/zebra_rib.c
@@ -3453,6 +3453,10 @@ void rib_lookup_and_pushup(struct prefix_ipv4 *p, vrf_id_t vrf_id)
* allocate: if they allocate a nexthop_group or backup nexthop info, they
* must free those objects. If this returns < 0, an error has occurred and the
* route_entry 're' has not been captured; the caller should free that also.
+ *
+ * -1 -> error
+ * 0 -> Add
+ * 1 -> update
*/
int rib_add_multipath_nhe(afi_t afi, safi_t safi, struct prefix *p,
struct prefix_ipv6 *src_p, struct route_entry *re,
@@ -3567,11 +3571,12 @@ int rib_add_multipath_nhe(afi_t afi, safi_t safi, struct prefix *p,
SET_FLAG(re->status, ROUTE_ENTRY_CHANGED);
rib_addnode(rn, re, 1);
- ret = 1;
/* Free implicit route.*/
- if (same)
+ if (same) {
+ ret = 1;
rib_delnode(rn, same);
+ }
/* See if we can remove some RE entries that are queued for
* removal, but won't be considered in rib processing.