diff options
Diffstat (limited to 'include/net/dst.h')
| -rw-r--r-- | include/net/dst.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index 0f303cc60252..78c78cdce0e9 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -307,7 +307,7 @@ static inline bool dst_hold_safe(struct dst_entry *dst) * @skb: buffer * * If dst is not yet refcounted and not destroyed, grab a ref on it. - * Returns true if dst is refcounted. + * Returns: true if dst is refcounted. */ static inline bool skb_dst_force(struct sk_buff *skb) { @@ -440,6 +440,15 @@ static inline void dst_set_expires(struct dst_entry *dst, int timeout) dst->expires = expires; } +static inline unsigned int dst_dev_overhead(struct dst_entry *dst, + struct sk_buff *skb) +{ + if (likely(dst)) + return LL_RESERVED_SPACE(dst->dev); + + return skb->mac_len; +} + INDIRECT_CALLABLE_DECLARE(int ip6_output(struct net *, struct sock *, struct sk_buff *)); INDIRECT_CALLABLE_DECLARE(int ip_output(struct net *, struct sock *, |