[PATCH] dst: use const in accessors

[Stephen Hemminger <shemminger@xxxxxxxx>]

Trivial, dst cache inline's can use const.

Signed-off-by: Stephen Hemminger <shemminger@xxxxxxxx>

diff -Nru a/include/net/dst.h b/include/net/dst.h
--- a/include/net/dst.h 2004-10-15 10:33:43 -07:00
+++ b/include/net/dst.h 2004-10-15 10:33:43 -07:00
@@ -103,19 +103,19 @@
 #ifdef __KERNEL__
 
 static inline u32
-dst_metric(struct dst_entry *dst, int metric)
+dst_metric(const struct dst_entry *dst, int metric)
 {
        return dst->metrics[metric-1];
 }
 
 static inline u32
-dst_path_metric(struct dst_entry *dst, int metric)
+dst_path_metric(const struct dst_entry *dst, int metric)
 {
        return dst->path->metrics[metric-1];
 }
 
 static inline u32
-dst_pmtu(struct dst_entry *dst)
+dst_pmtu(const struct dst_entry *dst)
 {
        u32 mtu = dst_path_metric(dst, RTAX_MTU);
        /* Yes, _exactly_. This is paranoia. */