inet: Define IPV4_DEVCONF_MAX

Define IPV4_DEVCONF_MAX to get rid of MAX - 1 notation.

Signed-off-by: Thomas Graf <tgraf@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 3 deletions

diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 380ba6bc5db1..2b86eaf11773 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -41,10 +41,12 @@ enum
         __IPV4_DEVCONF_MAX
 };
 
+#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1)
+
 struct ipv4_devconf {
         void    *sysctl;
-        int     data[__IPV4_DEVCONF_MAX - 1];
-        DECLARE_BITMAP(state, __IPV4_DEVCONF_MAX - 1);
+        int     data[IPV4_DEVCONF_MAX];
+        DECLARE_BITMAP(state, IPV4_DEVCONF_MAX);
 };
 
 struct in_device {
@@ -90,7 +92,7 @@ static inline void ipv4_devconf_set(struct in_device *in_dev, int index,
 
 static inline void ipv4_devconf_setall(struct in_device *in_dev)
 {
-        bitmap_fill(in_dev->cnf.state, __IPV4_DEVCONF_MAX - 1);
+        bitmap_fill(in_dev->cnf.state, IPV4_DEVCONF_MAX);
 }
 
 #define IN_DEV_CONF_GET(in_dev, attr) \