From 868c86bcb5bdea7ed8d45979b17bb919af9254db Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 14 Nov 2006 21:35:48 -0800 Subject: [PATCH] [NET]: annotate csum_ipv6_magic() callers in net/* Signed-off-by: Al Viro Signed-off-by: David S. Miller --- include/net/udp.h | 4 ++-- include/net/udplite.h | 4 ++-- net/dccp/ipv6.c | 2 +- net/ipv6/icmp.c | 14 +++++++------- net/ipv6/mcast.c | 4 ++-- net/ipv6/netfilter.c | 5 +++-- net/ipv6/raw.c | 11 +++++------ net/ipv6/tcp_ipv6.c | 8 ++++---- net/ipv6/udp.c | 9 +++++---- 9 files changed, 31 insertions(+), 30 deletions(-) diff --git a/include/net/udp.h b/include/net/udp.h index 4f0626735ed3..39e825a6909a 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -89,9 +89,9 @@ static __inline__ int udp_lib_checksum_complete(struct sk_buff *skb) * @skb: sk_buff containing the filled-in UDP header * (checksum field must be zeroed out) */ -static inline u32 udp_csum_outgoing(struct sock *sk, struct sk_buff *skb) +static inline __wsum udp_csum_outgoing(struct sock *sk, struct sk_buff *skb) { - u32 csum = csum_partial(skb->h.raw, sizeof(struct udphdr), 0); + __wsum csum = csum_partial(skb->h.raw, sizeof(struct udphdr), 0); skb_queue_walk(&sk->sk_write_queue, skb) { csum = csum_add(csum, skb->csum); diff --git a/include/net/udplite.h b/include/net/udplite.h index 1473b3e49044..406eb755b34e 100644 --- a/include/net/udplite.h +++ b/include/net/udplite.h @@ -124,10 +124,10 @@ static inline int udplite_sender_cscov(struct udp_sock *up, struct udphdr *uh) return cscov; } -static inline u32 udplite_csum_outgoing(struct sock *sk, struct sk_buff *skb) +static inline __wsum udplite_csum_outgoing(struct sock *sk, struct sk_buff *skb) { - u32 csum = 0; int off, len, cscov = udplite_sender_cscov(udp_sk(sk), skb->h.uh); + __wsum csum = 0; skb->ip_summed = CHECKSUM_NONE; /* no HW support for checksumming */ diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index e0a0607862ef..f28e406a4a1f 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -59,7 +59,7 @@ static void dccp_v6_hash(struct sock *sk) } /* add pseudo-header to DCCP checksum stored in skb->csum */ -static inline u16 dccp_v6_csum_finish(struct sk_buff *skb, +static inline __sum16 dccp_v6_csum_finish(struct sk_buff *skb, struct in6_addr *saddr, struct in6_addr *daddr) { diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index bd51847acd57..4ab8acf37b54 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -234,7 +234,7 @@ static int icmpv6_push_pending_frames(struct sock *sk, struct flowi *fl, struct len, fl->proto, skb->csum); } else { - u32 tmp_csum = 0; + __wsum tmp_csum = 0; skb_queue_walk(&sk->sk_write_queue, skb) { tmp_csum = csum_add(tmp_csum, skb->csum); @@ -242,10 +242,10 @@ static int icmpv6_push_pending_frames(struct sock *sk, struct flowi *fl, struct tmp_csum = csum_partial((char *)icmp6h, sizeof(struct icmp6hdr), tmp_csum); - tmp_csum = csum_ipv6_magic(&fl->fl6_src, - &fl->fl6_dst, - len, fl->proto, tmp_csum); - icmp6h->icmp6_cksum = tmp_csum; + icmp6h->icmp6_cksum = csum_ipv6_magic(&fl->fl6_src, + &fl->fl6_dst, + len, fl->proto, + tmp_csum); } ip6_push_pending_frames(sk); out: @@ -636,8 +636,8 @@ static int icmpv6_rcv(struct sk_buff **pskb) break; /* fall through */ case CHECKSUM_NONE: - skb->csum = ~csum_ipv6_magic(saddr, daddr, skb->len, - IPPROTO_ICMPV6, 0); + skb->csum = ~csum_unfold(csum_ipv6_magic(saddr, daddr, skb->len, + IPPROTO_ICMPV6, 0)); if (__skb_checksum_complete(skb)) { LIMIT_NETDEBUG(KERN_DEBUG "ICMPv6 checksum failed [" NIP6_FMT " > " NIP6_FMT "]\n", NIP6(*saddr), NIP6(*daddr)); diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index c006d02be8bc..a1c231a04ac2 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -91,7 +91,7 @@ struct mld2_grec { struct mld2_report { __u8 type; __u8 resv1; - __u16 csum; + __sum16 csum; __be16 resv2; __be16 ngrec; struct mld2_grec grec[0]; @@ -100,7 +100,7 @@ struct mld2_report { struct mld2_query { __u8 type; __u8 code; - __u16 csum; + __sum16 csum; __be16 mrc; __be16 resv1; struct in6_addr mca; diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c index 646a47456fd4..8d1b542806c1 100644 --- a/net/ipv6/netfilter.c +++ b/net/ipv6/netfilter.c @@ -100,12 +100,13 @@ unsigned int nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, } /* fall through */ case CHECKSUM_NONE: - skb->csum = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, + skb->csum = ~csum_unfold( + csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, skb->len - dataoff, protocol, csum_sub(0, skb_checksum(skb, 0, - dataoff, 0))); + dataoff, 0)))); csum = __skb_checksum_complete(skb); } return csum; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index b03040a20814..cee5db27e8b4 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -370,9 +370,9 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb) skb->ip_summed = CHECKSUM_UNNECESSARY; } if (skb->ip_summed != CHECKSUM_UNNECESSARY) - skb->csum = ~csum_ipv6_magic(&skb->nh.ipv6h->saddr, + skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr, &skb->nh.ipv6h->daddr, - skb->len, inet->num, 0); + skb->len, inet->num, 0)); if (inet->hdrincl) { if (skb_checksum_complete(skb)) { @@ -479,8 +479,8 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi *fl, int offset; int len; int total_len; - u32 tmp_csum; - u16 csum; + __wsum tmp_csum; + __sum16 csum; if (!rp->checksum) goto send; @@ -532,14 +532,13 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi *fl, if (unlikely(csum)) tmp_csum = csum_sub(tmp_csum, csum); - tmp_csum = csum_ipv6_magic(&fl->fl6_src, + csum = csum_ipv6_magic(&fl->fl6_src, &fl->fl6_dst, total_len, fl->proto, tmp_csum); if (tmp_csum == 0 && fl->proto == IPPROTO_UDP) tmp_csum = -1; - csum = tmp_csum; if (skb_store_bits(skb, offset, &csum, 2)) BUG(); diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 53f270995d8a..394bc54c5c21 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -105,10 +105,10 @@ static void tcp_v6_hash(struct sock *sk) } } -static __inline__ u16 tcp_v6_check(struct tcphdr *th, int len, +static __inline__ __sum16 tcp_v6_check(struct tcphdr *th, int len, struct in6_addr *saddr, struct in6_addr *daddr, - unsigned long base) + __wsum base) { return csum_ipv6_magic(saddr, daddr, len, IPPROTO_TCP, base); } @@ -1537,8 +1537,8 @@ static int tcp_v6_checksum_init(struct sk_buff *skb) } } - skb->csum = ~tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr, 0); + skb->csum = ~csum_unfold(tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr, + &skb->nh.ipv6h->daddr, 0)); if (skb->len <= 76) { return __skb_checksum_complete(skb); diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index e6e1f85f1bbd..0d22008d522e 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -383,9 +383,10 @@ static inline int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh) skb->ip_summed = CHECKSUM_UNNECESSARY; if (skb->ip_summed != CHECKSUM_UNNECESSARY) - skb->csum = ~csum_ipv6_magic(&skb->nh.ipv6h->saddr, - &skb->nh.ipv6h->daddr, - skb->len, IPPROTO_UDP, 0); + skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr, + &skb->nh.ipv6h->daddr, + ulen, IPPROTO_UDP, + 0)); return (UDP_SKB_CB(skb)->partial_cov = 0); } @@ -511,7 +512,7 @@ static int udp_v6_push_pending_frames(struct sock *sk, struct udp_sock *up) struct inet_sock *inet = inet_sk(sk); struct flowi *fl = &inet->cork.fl; int err = 0; - u32 csum = 0; + __wsum csum = 0; /* Grab the skbuff where UDP header space exists. */ if ((skb = skb_peek(&sk->sk_write_queue)) == NULL) -- 2.34.1