diff options
Diffstat (limited to 'include/net/route.h')
| -rw-r--r-- | include/net/route.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/net/route.h b/include/net/route.h index bc40b633a5c..2ea40c1b5e0 100644 --- a/include/net/route.h +++ b/include/net/route.h @@ -198,10 +198,13 @@ struct in_ifaddr; extern void fib_add_ifaddr(struct in_ifaddr *); extern void fib_del_ifaddr(struct in_ifaddr *, struct in_ifaddr *); -static inline void ip_rt_put(struct rtable * rt) +static inline void ip_rt_put(struct rtable *rt) { - if (rt) - dst_release(&rt->dst); + /* dst_release() accepts a NULL parameter. + * We rely on dst being first structure in struct rtable + */ + BUILD_BUG_ON(offsetof(struct rtable, dst) != 0); + dst_release(&rt->dst); } #define IPTOS_RT_MASK (IPTOS_TOS_MASK & ~3) |