From d3bc23e7ee9db8023dff5a86bb3b0069ed018789 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 14 Nov 2006 21:24:49 -0800 Subject: [NET]: Annotate callers of csum_fold() in net/* Signed-off-by: Al Viro Signed-off-by: David S. Miller --- net/ipv4/icmp.c | 4 ++-- net/ipv4/igmp.c | 2 +- net/ipv4/ip_gre.c | 4 ++-- net/ipv4/ip_output.c | 2 +- net/ipv4/ipmr.c | 2 +- net/ipv4/ipvs/ip_vs_core.c | 2 +- net/ipv4/netfilter.c | 2 +- net/ipv4/tcp.c | 8 +++++--- 8 files changed, 14 insertions(+), 12 deletions(-) (limited to 'net/ipv4') diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index b39a37a47545..cb9da0842b77 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -356,7 +356,7 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param, ip_flush_pending_frames(icmp_socket->sk); else if ((skb = skb_peek(&icmp_socket->sk->sk_write_queue)) != NULL) { struct icmphdr *icmph = skb->h.icmph; - unsigned int csum = 0; + __wsum csum = 0; struct sk_buff *skb1; skb_queue_walk(&icmp_socket->sk->sk_write_queue, skb1) { @@ -931,7 +931,7 @@ int icmp_rcv(struct sk_buff *skb) switch (skb->ip_summed) { case CHECKSUM_COMPLETE: - if (!(u16)csum_fold(skb->csum)) + if (!csum_fold(skb->csum)) break; /* fall through */ case CHECKSUM_NONE: diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 6eee71647b7c..0017ccb01d6d 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -932,7 +932,7 @@ int igmp_rcv(struct sk_buff *skb) switch (skb->ip_summed) { case CHECKSUM_COMPLETE: - if (!(u16)csum_fold(skb->csum)) + if (!csum_fold(skb->csum)) break; /* fall through */ case CHECKSUM_NONE: diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 25221146debb..2bf54adee8c2 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -557,7 +557,7 @@ static int ipgre_rcv(struct sk_buff *skb) struct iphdr *iph; u8 *h; __be16 flags; - u16 csum = 0; + __sum16 csum = 0; __be32 key = 0; u32 seqno = 0; struct ip_tunnel *tunnel; @@ -580,7 +580,7 @@ static int ipgre_rcv(struct sk_buff *skb) if (flags&GRE_CSUM) { switch (skb->ip_summed) { case CHECKSUM_COMPLETE: - csum = (u16)csum_fold(skb->csum); + csum = csum_fold(skb->csum); if (!csum) break; /* fall through */ diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 90942a384a45..5f3e35c03637 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1384,7 +1384,7 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar &ipc, rt, MSG_DONTWAIT); if ((skb = skb_peek(&sk->sk_write_queue)) != NULL) { if (arg->csumoffset >= 0) - *((u16 *)skb->h.raw + arg->csumoffset) = csum_fold(csum_add(skb->csum, arg->csum)); + *((__sum16 *)skb->h.raw + arg->csumoffset) = csum_fold(csum_add(skb->csum, arg->csum)); skb->ip_summed = CHECKSUM_NONE; ip_push_pending_frames(sk); } diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 97cfa97c8abb..efcf45ecc818 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1493,7 +1493,7 @@ static int pim_rcv(struct sk_buff * skb) if (pim->type != ((PIM_VERSION<<4)|(PIM_REGISTER)) || (pim->flags&PIM_NULL_REGISTER) || (ip_compute_csum((void *)pim, sizeof(*pim)) != 0 && - (u16)csum_fold(skb_checksum(skb, 0, skb->len, 0)))) + csum_fold(skb_checksum(skb, 0, skb->len, 0)))) goto drop; /* check if the inner packet is destined to mcast group */ diff --git a/net/ipv4/ipvs/ip_vs_core.c b/net/ipv4/ipvs/ip_vs_core.c index 1445bb47fea4..fac2dffd6672 100644 --- a/net/ipv4/ipvs/ip_vs_core.c +++ b/net/ipv4/ipvs/ip_vs_core.c @@ -538,7 +538,7 @@ static unsigned int ip_vs_post_routing(unsigned int hooknum, u16 ip_vs_checksum_complete(struct sk_buff *skb, int offset) { - return (u16) csum_fold(skb_checksum(skb, offset, skb->len - offset, 0)); + return csum_fold(skb_checksum(skb, offset, skb->len - offset, 0)); } static inline struct sk_buff * diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c index e49441ac3571..b797a37c01ce 100644 --- a/net/ipv4/netfilter.c +++ b/net/ipv4/netfilter.c @@ -172,7 +172,7 @@ unsigned int nf_ip_checksum(struct sk_buff *skb, unsigned int hook, case CHECKSUM_COMPLETE: if (hook != NF_IP_PRE_ROUTING && hook != NF_IP_LOCAL_IN) break; - if ((protocol == 0 && !(u16)csum_fold(skb->csum)) || + if ((protocol == 0 && !csum_fold(skb->csum)) || !csum_tcpudp_magic(iph->saddr, iph->daddr, skb->len - dataoff, protocol, skb->csum)) { diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index dadef867a3bb..168f9de906bc 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2162,7 +2162,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) struct tcphdr *th; unsigned thlen; unsigned int seq; - unsigned int delta; + __be32 delta; unsigned int oldlen; unsigned int len; @@ -2215,7 +2215,8 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) do { th->fin = th->psh = 0; - th->check = ~csum_fold(th->check + delta); + th->check = ~csum_fold((__force __wsum)((__force u32)th->check + + (__force u32)delta)); if (skb->ip_summed != CHECKSUM_PARTIAL) th->check = csum_fold(csum_partial(skb->h.raw, thlen, skb->csum)); @@ -2229,7 +2230,8 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features) } while (skb->next); delta = htonl(oldlen + (skb->tail - skb->h.raw) + skb->data_len); - th->check = ~csum_fold(th->check + delta); + th->check = ~csum_fold((__force __wsum)((__force u32)th->check + + (__force u32)delta)); if (skb->ip_summed != CHECKSUM_PARTIAL) th->check = csum_fold(csum_partial(skb->h.raw, thlen, skb->csum)); -- cgit v1.2.3