drivers/net/usb/usbnet.c: Use FIELD_SIZEOF macro in usbnet_init() function.

Signed-off-by: Thiago Farina <tfransosi@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 069c1cf0fdf73675dbb865b27ee4d673bd773840..7bc9852bd57c136bbd8a9d1c36e665519bc6a4c4 100644 (file)
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1529,9 +1529,9 @@ EXPORT_SYMBOL_GPL(usbnet_resume);
 
 static int __init usbnet_init(void)
 {
-       /* compiler should optimize this out */
-       BUILD_BUG_ON (sizeof (((struct sk_buff *)0)->cb)
-                       < sizeof (struct skb_data));
+       /* Compiler should optimize this out. */
+       BUILD_BUG_ON(
+               FIELD_SIZEOF(struct sk_buff, cb) < sizeof(struct skb_data));
 
        random_ether_addr(node_id);
        return 0;