From 476eab8251641ea2ae4666ca8a1436ebc2b8e9c3 Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Wed, 25 Jun 2014 17:09:52 +0300 Subject: [PATCH] net: remove inet6_reqsk_alloc Since pktops is only used for IPv6 only and opts is used for IPv4 only, we can move these fields into a union and this allows us to drop the inet6_reqsk_alloc function as after this change it becomes equivalent with inet_reqsk_alloc. This patch also fixes a kmemcheck issue in the IPv6 stack: the flags field was not annotated after a request_sock was allocated. Signed-off-by: Octavian Purdila Signed-off-by: David S. Miller --- include/linux/ipv6.h | 10 ---------- include/net/inet_sock.h | 6 ++++-- net/dccp/ipv6.c | 2 +- net/ipv6/syncookies.c | 2 +- net/ipv6/tcp_ipv6.c | 2 +- 5 files changed, 7 insertions(+), 15 deletions(-) diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index 2faef339d8f..c811300b0b0 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -256,16 +256,6 @@ static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk) return inet_sk(__sk)->pinet6; } -static inline struct request_sock *inet6_reqsk_alloc(struct request_sock_ops *ops) -{ - struct request_sock *req = reqsk_alloc(ops); - - if (req) - inet_rsk(req)->pktopts = NULL; - - return req; -} - static inline struct raw6_sock *raw6_sk(const struct sock *sk) { return (struct raw6_sock *)sk; diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index b1edf17bec0..a829b77523c 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -88,8 +88,10 @@ struct inet_request_sock { acked : 1, no_srccheck: 1; kmemcheck_bitfield_end(flags); - struct ip_options_rcu *opt; - struct sk_buff *pktopts; + union { + struct ip_options_rcu *opt; + struct sk_buff *pktopts; + }; u32 ir_mark; }; diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 4db3c2a1679..04cb17d4b0c 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -386,7 +386,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb) if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1) goto drop; - req = inet6_reqsk_alloc(&dccp6_request_sock_ops); + req = inet_reqsk_alloc(&dccp6_request_sock_ops); if (req == NULL) goto drop; diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c index a822b880689..83cea1d3946 100644 --- a/net/ipv6/syncookies.c +++ b/net/ipv6/syncookies.c @@ -187,7 +187,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb) goto out; ret = NULL; - req = inet6_reqsk_alloc(&tcp6_request_sock_ops); + req = inet_reqsk_alloc(&tcp6_request_sock_ops); if (!req) goto out; diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index a962455471b..5e2d7e655c0 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1010,7 +1010,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb) goto drop; } - req = inet6_reqsk_alloc(&tcp6_request_sock_ops); + req = inet_reqsk_alloc(&tcp6_request_sock_ops); if (req == NULL) goto drop; -- 2.46.0