1 files changed, 19 insertions, 10 deletions

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 9484f33730f6..6851ee94e974 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -224,7 +224,9 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
                 num_ext += 2;
         }
 
-        chunksize += sizeof(aiparam);
+        if (sp->adaptation_ind)
+                chunksize += sizeof(aiparam);
+
         chunksize += vparam_len;
 
         /* Account for AUTH related parameters */
@@ -304,10 +306,12 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
         if (sctp_prsctp_enable)
                 sctp_addto_chunk(retval, sizeof(prsctp_param), &prsctp_param);
 
-        aiparam.param_hdr.type = SCTP_PARAM_ADAPTATION_LAYER_IND;
-        aiparam.param_hdr.length = htons(sizeof(aiparam));
-        aiparam.adaptation_ind = htonl(sp->adaptation_ind);
-        sctp_addto_chunk(retval, sizeof(aiparam), &aiparam);
+        if (sp->adaptation_ind) {
+                aiparam.param_hdr.type = SCTP_PARAM_ADAPTATION_LAYER_IND;
+                aiparam.param_hdr.length = htons(sizeof(aiparam));
+                aiparam.adaptation_ind = htonl(sp->adaptation_ind);
+                sctp_addto_chunk(retval, sizeof(aiparam), &aiparam);
+        }
 
         /* Add SCTP-AUTH chunks to the parameter list */
         if (sctp_auth_enable) {
@@ -332,6 +336,7 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
         sctp_inithdr_t initack;
         struct sctp_chunk *retval;
         union sctp_params addrs;
+        struct sctp_sock *sp;
         int addrs_len;
         sctp_cookie_param_t *cookie;
         int cookie_len;
@@ -366,6 +371,7 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
         /* Calculate the total size of allocation, include the reserved
          * space for reporting unknown parameters if it is specified.
          */
+        sp = sctp_sk(asoc->base.sk);
         chunksize = sizeof(initack) + addrs_len + cookie_len + unkparam_len;
 
         /* Tell peer that we'll do ECN only if peer advertised such cap.  */
@@ -381,7 +387,8 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
                 num_ext += 2;
         }
 
-        chunksize += sizeof(aiparam);
+        if (sp->adaptation_ind)
+                chunksize += sizeof(aiparam);
 
         if (asoc->peer.auth_capable) {
                 auth_random = (sctp_paramhdr_t *)asoc->c.auth_random;
@@ -432,10 +439,12 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
         if (asoc->peer.prsctp_capable)
                 sctp_addto_chunk(retval, sizeof(prsctp_param), &prsctp_param);
 
-        aiparam.param_hdr.type = SCTP_PARAM_ADAPTATION_LAYER_IND;
-        aiparam.param_hdr.length = htons(sizeof(aiparam));
-        aiparam.adaptation_ind = htonl(sctp_sk(asoc->base.sk)->adaptation_ind);
-        sctp_addto_chunk(retval, sizeof(aiparam), &aiparam);
+        if (sp->adaptation_ind) {
+                aiparam.param_hdr.type = SCTP_PARAM_ADAPTATION_LAYER_IND;
+                aiparam.param_hdr.length = htons(sizeof(aiparam));
+                aiparam.adaptation_ind = htonl(sp->adaptation_ind);
+                sctp_addto_chunk(retval, sizeof(aiparam), &aiparam);
+        }
 
         if (asoc->peer.auth_capable) {
                 sctp_addto_chunk(retval, ntohs(auth_random->length),