diff options
Diffstat (limited to 'include/linux/rtnetlink.h')
| -rw-r--r-- | include/linux/rtnetlink.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index 61fb1f2224d2..3406e8cfc32c 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -642,8 +642,9 @@ extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics); extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data); #define RTA_PUT(skb, attrtype, attrlen, data) \ -({ if (skb_tailroom(skb) < (int)RTA_SPACE(attrlen)) goto rtattr_failure; \ - __rta_fill(skb, attrtype, attrlen, data); }) +({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ + goto rtattr_failure; \ + __rta_fill(skb, attrtype, attrlen, data); }) static inline struct rtattr * __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen) @@ -658,8 +659,9 @@ __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen) } #define __RTA_PUT(skb, attrtype, attrlen) \ -({ if (skb_tailroom(skb) < (int)RTA_SPACE(attrlen)) goto rtattr_failure; \ - __rta_reserve(skb, attrtype, attrlen); }) +({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \ + goto rtattr_failure; \ + __rta_reserve(skb, attrtype, attrlen); }) extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change); |