From 9213bb8325747d00b6d9d5aea6ccde6a72c8a1fa Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 22 Aug 2012 20:49:33 +0000 Subject: [PATCH] wimax/i2400m: use is_zero_ether_addr() instead of memcmp() Using is_zero_ether_addr() instead of directly use memcmp() to determine if the ethernet address is all zeros. spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun Signed-off-by: David S. Miller --- drivers/net/wimax/i2400m/driver.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c index 025426132754..9c34d2fccfac 100644 --- a/drivers/net/wimax/i2400m/driver.c +++ b/drivers/net/wimax/i2400m/driver.c @@ -222,7 +222,6 @@ int i2400m_check_mac_addr(struct i2400m *i2400m) struct sk_buff *skb; const struct i2400m_tlv_detailed_device_info *ddi; struct net_device *net_dev = i2400m->wimax_dev.net_dev; - const unsigned char zeromac[ETH_ALEN] = { 0 }; d_fnstart(3, dev, "(i2400m %p)\n", i2400m); skb = i2400m_get_device_info(i2400m); @@ -244,7 +243,7 @@ int i2400m_check_mac_addr(struct i2400m *i2400m) "to that of boot mode's\n"); dev_warn(dev, "device reports %pM\n", ddi->mac_address); dev_warn(dev, "boot mode reported %pM\n", net_dev->perm_addr); - if (!memcmp(zeromac, ddi->mac_address, sizeof(zeromac))) + if (is_zero_ether_addr(ddi->mac_address)) dev_err(dev, "device reports an invalid MAC address, " "not updating\n"); else {