From: Scott Feldman <sfel...@gmail.com>
Use SWITCHDEV_F_SKIP_EOPNOTSUPP to skip over ports in bridge that don't
support setting ageing_time (or setting bridge attrs in general).
If push fails, don't update ageing_time in bridge and return err to user.
If push succeeds, update ageing_time in bridge and run gc_timer now to
recalabrate when to run gc_timer next, based on new ageing_time.
Signed-off-by: Scott Feldman <sfel...@gmail.com>
Signed-off-by: Jiri Pirko <j...@resnulli.us>
---
net/bridge/br_ioctl.c | 3 +--
net/bridge/br_netlink.c | 6 +++---
net/bridge/br_private.h | 1 +
net/bridge/br_stp.c | 23 +++++++++++++++++++++++
net/bridge/br_sysfs_br.c | 3 +--
5 files changed, 29 insertions(+), 7 deletions(-)
diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index 8d423bc..263b4de 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -200,8 +200,7 @@ static int old_dev_ioctl(struct net_device *dev, struct
ifreq *rq, int cmd)
if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
return -EPERM;
- br->ageing_time = clock_t_to_jiffies(args[1]);
- return 0;
+ return br_set_ageing_time(br, args[1]);
case BRCTL_GET_PORT_INFO:
{
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index d78b442..544ab96 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -870,9 +870,9 @@ static int br_changelink(struct net_device *brdev, struct
nlattr *tb[],
}
if (data[IFLA_BR_AGEING_TIME]) {
- u32 ageing_time = nla_get_u32(data[IFLA_BR_AGEING_TIME]);
-
- br->ageing_time = clock_t_to_jiffies(ageing_time);
+ err = br_set_ageing_time(br,
nla_get_u32(data[IFLA_BR_AGEING_TIME]));
+ if (err)
+ return err;
}
if (data[IFLA_BR_STP_STATE]) {
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 09d3ecb..ba0c67b 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -882,6 +882,7 @@ void __br_set_forward_delay(struct net_bridge *br, unsigned
long t);
int br_set_forward_delay(struct net_bridge *br, unsigned long x);
int br_set_hello_time(struct net_bridge *br, unsigned long x);
int br_set_max_age(struct net_bridge *br, unsigned long x);
+int br_set_ageing_time(struct net_bridge *br, u32 ageing_time);
/* br_stp_if.c */
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 3a982c0..db6d243de 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -566,6 +566,29 @@ int br_set_max_age(struct net_bridge *br, unsigned long
val)
}
+int br_set_ageing_time(struct net_bridge *br, u32 ageing_time)
+{
+ struct switchdev_attr attr = {
+ .id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
+ .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP,
+ .u.ageing_time = ageing_time,
+ };
+ unsigned long t = clock_t_to_jiffies(ageing_time);
+ int err;
+
+ if (t < BR_MIN_AGEING_TIME || t > BR_MAX_AGEING_TIME)
+ return -ERANGE;
+
+ err = switchdev_port_attr_set(br->dev, &attr);
+ if (err)
+ return err;
+
+ br->ageing_time = t;
+ mod_timer(&br->gc_timer, jiffies);
+
+ return 0;
+}
+
void __br_set_forward_delay(struct net_bridge *br, unsigned long t)
{
br->bridge_forward_delay = t;
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 4c97fc5..04ef192 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -102,8 +102,7 @@ static ssize_t ageing_time_show(struct device *d,
static int set_ageing_time(struct net_bridge *br, unsigned long val)
{
- br->ageing_time = clock_t_to_jiffies(val);
- return 0;
+ return br_set_ageing_time(br, val);
}
static ssize_t ageing_time_store(struct device *d,
--
1.7.10.4
--
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