1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 069c1cf0fdf7..7bc9852bd57c 100644
--- 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;