[PATCH net-next 1/4] sctp: remove reconf_enable from asoc

[Xin Long]

asoc's reconf support is actually decided by the 4-shakehand negotiation,
not something that users can set by sockopt. asoc->peer.reconf_capable is
working for this. So remove it from asoc.

Signed-off-by: Xin Long <lucien....@gmail.com>
---
 include/net/sctp/structs.h | 3 +--
 net/sctp/associola.c       | 1 -
 net/sctp/sm_make_chunk.c   | 5 ++---
 net/sctp/socket.c          | 7 ++-----
 4 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 0767701..d9e0e1a 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -2051,8 +2051,7 @@ struct sctp_association {
             temp:1,            /* Is it a temporary association? */
             force_delay:1,
             intl_enable:1,
-            prsctp_enable:1,
-            reconf_enable:1;
+            prsctp_enable:1;
 
        __u8 strreset_enable;
        __u8 strreset_outstanding; /* request param count on the fly */
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 1999237..321c199 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -262,7 +262,6 @@ static struct sctp_association *sctp_association_init(
 
        asoc->active_key_id = ep->active_key_id;
        asoc->prsctp_enable = ep->prsctp_enable;
-       asoc->reconf_enable = ep->reconf_enable;
        asoc->strreset_enable = ep->strreset_enable;
 
        /* Save the hmacs and chunks list into this association */
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 9b0e5b0..d784dc1 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -261,7 +261,7 @@ struct sctp_chunk *sctp_make_init(const struct 
sctp_association *asoc,
                num_ext += 2;
        }
 
-       if (asoc->reconf_enable) {
+       if (asoc->ep->reconf_enable) {
                extensions[num_ext] = SCTP_CID_RECONF;
                num_ext += 1;
        }
@@ -2007,8 +2007,7 @@ static void sctp_process_ext_param(struct 
sctp_association *asoc,
        for (i = 0; i < num_ext; i++) {
                switch (param.ext->chunks[i]) {
                case SCTP_CID_RECONF:
-                       if (asoc->reconf_enable &&
-                           !asoc->peer.reconf_capable)
+                       if (asoc->ep->reconf_enable)
                                asoc->peer.reconf_capable = 1;
                        break;
                case SCTP_CID_FWD_TSN:
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 39ea0a3..0424876 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4226,10 +4226,7 @@ static int sctp_setsockopt_reconfig_supported(struct 
sock *sk,
            sctp_style(sk, UDP))
                goto out;
 
-       if (asoc)
-               asoc->reconf_enable = !!params.assoc_value;
-       else
-               sctp_sk(sk)->ep->reconf_enable = !!params.assoc_value;
+       sctp_sk(sk)->ep->reconf_enable = !!params.assoc_value;
 
        retval = 0;
 
@@ -7554,7 +7551,7 @@ static int sctp_getsockopt_reconfig_supported(struct sock 
*sk, int len,
                goto out;
        }
 
-       params.assoc_value = asoc ? asoc->reconf_enable
+       params.assoc_value = asoc ? asoc->peer.reconf_capable
                                  : sctp_sk(sk)->ep->reconf_enable;
 
        if (put_user(len, optlen))
-- 
2.1.0