net: iucv: Use FIELD_SIZEOF directly instead of reimplementing its fu…

…nction FIELD_SIZEOF is defined as a macro to calculate the specified value. Therefore, We prefer to use the macro rather than calculating its value. Signed-off-by: zhong jiang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
josf · Sep 20, 2018 · 86c85e1 · 86c85e1
1 parent 1852210
commit 86c85e1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
@@ -48,7 +48,7 @@ static struct iucv_interface *pr_iucv;
 static const u8 iprm_shutdown[8] =
 	{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
 
-#define TRGCLS_SIZE	(sizeof(((struct iucv_message *)0)->class))
+#define TRGCLS_SIZE	FIELD_SIZEOF(struct iucv_message, class)
 
 #define __iucv_sock_wait(sk, condition, timeo, ret)			\
 do {									\