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bridge: simplify the stp_state_store by calling store_bridge_parm 

There are some repetitive codes in stp_state_store, we can remove
them by calling store_bridge_parm.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2016-04-09 00:03:30 +08:00 committed by David S. Miller
parent 347db6b49e
commit 4436156b6f
1 changed files with 9 additions and 15 deletions
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24
net/bridge/br_sysfs_br.c
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@ -128,27 +128,21 @@ static ssize_t stp_state_show(struct device *d,
}
static ssize_t stp_state_store(struct device *d,
struct device_attribute *attr, const char *buf,
size_t len)
static int set_stp_state(struct net_bridge *br, unsigned long val)
{
struct net_bridge *br = to_bridge(d);
char *endp;
unsigned long val;
if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))
return -EPERM;
val = simple_strtoul(buf, &endp, 0);
if (endp == buf)
return -EINVAL;
if (!rtnl_trylock())
return restart_syscall();
br_stp_set_enabled(br, val);
rtnl_unlock();
return len;
return 0;
}
static ssize_t stp_state_store(struct device *d,
struct device_attribute *attr, const char *buf,
size_t len)
{
return store_bridge_parm(d, buf, len, set_stp_state);
}
static DEVICE_ATTR_RW(stp_state);