team: remove synchronize_rcu() called during port disable
Check the unlikely case of team->en_port_count == 0 before modulo
operation.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index 7054595..b662045 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -229,6 +229,16 @@
return port;
return NULL;
}
+
+static inline int team_num_to_port_index(struct team *team, int num)
+{
+ int en_port_count = ACCESS_ONCE(team->en_port_count);
+
+ if (unlikely(!en_port_count))
+ return 0;
+ return num % en_port_count;
+}
+
static inline struct team_port *team_get_port_by_index_rcu(struct team *team,
int port_index)
{