net/af_iucv: replace open-coded U16_MAX

Improve the readability of a range check.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 84bd18f..b02470a 100644 (file)
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/netdevice.h>
 #include <linux/types.h>
+#include <linux/limits.h>
 #include <linux/list.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
@@ -1559,7 +1560,7 @@ static int iucv_sock_setsockopt(struct socket *sock, int level, int optname,
                switch (sk->sk_state) {
                case IUCV_OPEN:
                case IUCV_BOUND:
-                       if (val < 1 || val > (u16)(~0))
+                       if (val < 1 || val > U16_MAX)
                                rc = -EINVAL;
                        else
                                iucv->msglimit = val;