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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-12-19 20:10:53 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-20 12:46:11 -0500 |
| commit | 223b229b63f461cd3c14583a0e517fde19e7a081 (patch) | |
| tree | b678efc28b6aea762703774fa2c51d83e82cbbf1 /net/bridge/br_sysfs_br.c | |
| parent | 53c81e95df1793933f87748d36070a721f6cb287 (diff) | |
| download | linux-stable-223b229b63f461cd3c14583a0e517fde19e7a081.tar.gz linux-stable-223b229b63f461cd3c14583a0e517fde19e7a081.tar.bz2 linux-stable-223b229b63f461cd3c14583a0e517fde19e7a081.zip | |
bridge: Use helpers to handle MAC address
Use
%pM to print MAC
mac_pton() to convert it from ASCII to binary format, and
ether_addr_copy() to copy.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_sysfs_br.c')
| -rw-r--r-- | net/bridge/br_sysfs_br.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c index 723f25eed8ea..b1be0dcfba6b 100644 --- a/net/bridge/br_sysfs_br.c +++ b/net/bridge/br_sysfs_br.c @@ -272,10 +272,7 @@ static ssize_t group_addr_show(struct device *d, struct device_attribute *attr, char *buf) { struct net_bridge *br = to_bridge(d); - return sprintf(buf, "%x:%x:%x:%x:%x:%x\n", - br->group_addr[0], br->group_addr[1], - br->group_addr[2], br->group_addr[3], - br->group_addr[4], br->group_addr[5]); + return sprintf(buf, "%pM\n", br->group_addr); } static ssize_t group_addr_store(struct device *d, @@ -284,14 +281,11 @@ static ssize_t group_addr_store(struct device *d, { struct net_bridge *br = to_bridge(d); u8 new_addr[6]; - int i; if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN)) return -EPERM; - if (sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", - &new_addr[0], &new_addr[1], &new_addr[2], - &new_addr[3], &new_addr[4], &new_addr[5]) != 6) + if (!mac_pton(buf, new_addr)) return -EINVAL; if (!is_link_local_ether_addr(new_addr)) @@ -306,8 +300,7 @@ static ssize_t group_addr_store(struct device *d, return restart_syscall(); spin_lock_bh(&br->lock); - for (i = 0; i < 6; i++) - br->group_addr[i] = new_addr[i]; + ether_addr_copy(br->group_addr, new_addr); spin_unlock_bh(&br->lock); br->group_addr_set = true; |