diff options
| -rw-r--r-- | include/net/dsa.h | 3 | ||||
| -rw-r--r-- | net/dsa/dsa2.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index 9e5593885357..929bcaec4d41 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -159,6 +159,9 @@ struct dsa_switch_tree { */ struct net_device **lags; unsigned int lags_len; + + /* Track the largest switch index within a tree */ + unsigned int last_switch; }; #define dsa_lags_foreach_id(_id, _dst) \ diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index 185629f27f80..de5e93ba2a9d 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -1265,6 +1265,9 @@ static int dsa_switch_parse_member_of(struct dsa_switch *ds, return -EEXIST; } + if (ds->dst->last_switch < ds->index) + ds->dst->last_switch = ds->index; + return 0; } |