From 14bbd6a565e1bcdc240d44687edb93f721cfdf99 Mon Sep 17 00:00:00 2001 From: Pravin B Shelar Date: Thu, 14 Feb 2013 09:44:49 +0000 Subject: net: Add skb_unclone() helper function. This function will be used in next GRE_GSO patch. This patch does not change any functionality. Signed-off-by: Pravin B Shelar Acked-by: Eric Dumazet --- net/ipv6/ah6.c | 3 +-- net/ipv6/netfilter/nf_conntrack_reasm.c | 2 +- net/ipv6/reassembly.c | 2 +- net/ipv6/xfrm6_mode_tunnel.c | 3 +-- 4 files changed, 4 insertions(+), 6 deletions(-) (limited to 'net/ipv6') diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c index 3842331..bb02e17 100644 --- a/net/ipv6/ah6.c +++ b/net/ipv6/ah6.c @@ -521,8 +521,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb) /* We are going to _remove_ AH header to keep sockets happy, * so... Later this can change. */ - if (skb_cloned(skb) && - pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) + if (skb_unclone(skb, GFP_ATOMIC)) goto out; skb->ip_summed = CHECKSUM_NONE; diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index c674f15..b89a8c3 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -368,7 +368,7 @@ nf_ct_frag6_reasm(struct frag_queue *fq, struct net_device *dev) } /* Head of list must not be cloned. */ - if (skb_cloned(head) && pskb_expand_head(head, 0, 0, GFP_ATOMIC)) { + if (skb_unclone(head, GFP_ATOMIC)) { pr_debug("skb is cloned but can't expand head"); goto out_oom; } diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index bab2c27..e354743 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -404,7 +404,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev, goto out_oversize; /* Head of list must not be cloned. */ - if (skb_cloned(head) && pskb_expand_head(head, 0, 0, GFP_ATOMIC)) + if (skb_unclone(head, GFP_ATOMIC)) goto out_oom; /* If the first fragment is fragmented itself, we split diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c index 9f2095b..93c41a8 100644 --- a/net/ipv6/xfrm6_mode_tunnel.c +++ b/net/ipv6/xfrm6_mode_tunnel.c @@ -69,8 +69,7 @@ static int xfrm6_mode_tunnel_input(struct xfrm_state *x, struct sk_buff *skb) if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) goto out; - if (skb_cloned(skb) && - (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) + if (err = skb_unclone(skb, GFP_ATOMIC)) goto out; if (x->props.flags & XFRM_STATE_DECAP_DSCP) -- cgit v1.1