tcp/dccp: constify send_synack and send_reset socket argument

None of these functions need to change the socket, make it
const.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 181f97f..90247ec 100644 (file)
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -34,9 +34,9 @@ struct request_sock_ops {
        char            *slab_name;
        int             (*rtx_syn_ack)(const struct sock *sk,
                                       struct request_sock *req);
-       void            (*send_ack)(struct sock *sk, struct sk_buff *skb,
+       void            (*send_ack)(const struct sock *sk, struct sk_buff *skb,
                                    struct request_sock *req);
-       void            (*send_reset)(struct sock *sk,
+       void            (*send_reset)(const struct sock *sk,
                                      struct sk_buff *skb);
        void            (*destructor)(struct request_sock *req);
        void            (*syn_ack_timeout)(const struct request_sock *req);

diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 31e96df..8ed1df2 100644 (file)
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -229,7 +229,7 @@ void dccp_v4_send_check(struct sock *sk, struct sk_buff *skb);
 int dccp_retransmit_skb(struct sock *sk);
 
 void dccp_send_ack(struct sock *sk);
-void dccp_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+void dccp_reqsk_send_ack(const struct sock *sk, struct sk_buff *skb,
                         struct request_sock *rsk);
 
 void dccp_send_sync(struct sock *sk, const u64 seq,

diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index a46ae9c..00a14fa 100644 (file)
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -527,7 +527,7 @@ out:
        return err;
 }
 
-static void dccp_v4_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
+static void dccp_v4_ctl_send_reset(const struct sock *sk, struct sk_buff *rxskb)
 {
        int err;
        const struct iphdr *rxiph;

diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 4fa199d..aa719e7 100644 (file)
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -234,7 +234,7 @@ static void dccp_v6_reqsk_destructor(struct request_sock *req)
        kfree_skb(inet_rsk(req)->pktopts);
 }
 
-static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
+static void dccp_v6_ctl_send_reset(const struct sock *sk, struct sk_buff *rxskb)
 {
        const struct ipv6hdr *rxip6h;
        struct sk_buff *skb;

diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 838f524..9bfd0dc 100644 (file)
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -236,7 +236,7 @@ int dccp_child_process(struct sock *parent, struct sock *child,
 
 EXPORT_SYMBOL_GPL(dccp_child_process);
 
-void dccp_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+void dccp_reqsk_send_ack(const struct sock *sk, struct sk_buff *skb,
                         struct request_sock *rsk)
 {
        DCCP_BUG("DCCP-ACK packets are never sent in LISTEN/RESPOND state");

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index a23ba7d..4300d01 100644 (file)
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -576,7 +576,7 @@ EXPORT_SYMBOL(tcp_v4_send_check);
  *     Exception: precedence violation. We do not implement it in any case.
  */
 
-static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
+static void tcp_v4_send_reset(const struct sock *sk, struct sk_buff *skb)
 {
        const struct tcphdr *th = tcp_hdr(skb);
        struct {
@@ -795,7 +795,7 @@ static void tcp_v4_timewait_ack(struct sock *sk, struct sk_buff *skb)
        inet_twsk_put(tw);
 }
 
-static void tcp_v4_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+static void tcp_v4_reqsk_send_ack(const struct sock *sk, struct sk_buff *skb,
                                  struct request_sock *req)
 {
        /* sk->sk_state == TCP_LISTEN -> for regular TCP_SYN_RECV

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 16fb299..c47e5c8 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -70,8 +70,8 @@
 #include <linux/crypto.h>
 #include <linux/scatterlist.h>
 
-static void    tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb);
-static void    tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+static void    tcp_v6_send_reset(const struct sock *sk, struct sk_buff *skb);
+static void    tcp_v6_reqsk_send_ack(const struct sock *sk, struct sk_buff *skb,
                                      struct request_sock *req);
 
 static int     tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb);
@@ -724,7 +724,7 @@ static const struct tcp_request_sock_ops tcp_request_sock_ipv6_ops = {
        .queue_hash_add =       inet6_csk_reqsk_queue_hash_add,
 };
 
-static void tcp_v6_send_response(struct sock *sk, struct sk_buff *skb, u32 seq,
+static void tcp_v6_send_response(const struct sock *sk, struct sk_buff *skb, u32 seq,
                                 u32 ack, u32 win, u32 tsval, u32 tsecr,
                                 int oif, struct tcp_md5sig_key *key, int rst,
                                 u8 tclass, u32 label)
@@ -823,7 +823,7 @@ static void tcp_v6_send_response(struct sock *sk, struct sk_buff *skb, u32 seq,
        kfree_skb(buff);
 }
 
-static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
+static void tcp_v6_send_reset(const struct sock *sk, struct sk_buff *skb)
 {
        const struct tcphdr *th = tcp_hdr(skb);
        u32 seq = 0, ack_seq = 0;
@@ -894,7 +894,7 @@ release_sk1:
 #endif
 }
 
-static void tcp_v6_send_ack(struct sock *sk, struct sk_buff *skb, u32 seq,
+static void tcp_v6_send_ack(const struct sock *sk, struct sk_buff *skb, u32 seq,
                            u32 ack, u32 win, u32 tsval, u32 tsecr, int oif,
                            struct tcp_md5sig_key *key, u8 tclass,
                            u32 label)
@@ -917,7 +917,7 @@ static void tcp_v6_timewait_ack(struct sock *sk, struct sk_buff *skb)
        inet_twsk_put(tw);
 }
 
-static void tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+static void tcp_v6_reqsk_send_ack(const struct sock *sk, struct sk_buff *skb,
                                  struct request_sock *req)
 {
        /* sk->sk_state == TCP_LISTEN -> for regular TCP_SYN_RECV