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-rw-r--r--net/dsa/slave.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index cec47e843570..78128acfbf63 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -443,9 +443,13 @@ static int dsa_slave_ageing_time(struct net_device *dev,
unsigned long ageing_jiffies = clock_t_to_jiffies(attr->u.ageing_time);
unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies);
- /* bridge skips -EOPNOTSUPP, so skip the prepare phase */
- if (switchdev_trans_ph_prepare(trans))
+ if (switchdev_trans_ph_prepare(trans)) {
+ if (ds->ageing_time_min && ageing_time < ds->ageing_time_min)
+ return -ERANGE;
+ if (ds->ageing_time_max && ageing_time > ds->ageing_time_max)
+ return -ERANGE;
return 0;
+ }
/* Keep the fastest ageing time in case of multiple bridges */
p->dp->ageing_time = ageing_time;