[DCCP] minisock: Rename struct dccp_options to struct dccp_minisock

This will later be included in struct dccp_request_sock so that we can
have per connection feature negotiation state while in the 3way
handshake, when we clone the DCCP_ROLE_LISTEN socket (in
dccp_create_openreq_child) we'll just copy this state from
dreq_minisock to dccps_minisock.

Also the feature negotiation and option parsing code will mostly touch
dccps_minisock, which will simplify some stuff.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

8 files changed, 104 insertions, 103 deletions

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index e35f680f909b..676333b9fad0 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -328,21 +328,24 @@ static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
 #define DCCP_NDP_LIMIT 0xFFFFFF
 
 /**
-  * struct dccp_options - option values for a DCCP connection
-  *     @dccpo_sequence_window - Sequence Window Feature (section 7.5.2)
-  *     @dccpo_ccid - Congestion Control Id (CCID) (section 10)
-  *     @dccpo_send_ack_vector - Send Ack Vector Feature (section 11.5)
-  *     @dccpo_send_ndp_count - Send NDP Count Feature (7.7.2)
+  * struct dccp_minisock - Minimal DCCP connection representation
+  *
+  * Will be used to pass the state from dccp_request_sock to dccp_sock.
+  *
+  * @dccpms_sequence_window - Sequence Window Feature (section 7.5.2)
+  * @dccpms_ccid - Congestion Control Id (CCID) (section 10)
+  * @dccpms_send_ack_vector - Send Ack Vector Feature (section 11.5)
+  * @dccpms_send_ndp_count - Send NDP Count Feature (7.7.2)
   */
-struct dccp_options {
-        __u64   dccpo_sequence_window;
-        __u8    dccpo_rx_ccid;
-        __u8    dccpo_tx_ccid;
-        __u8    dccpo_send_ack_vector;
-        __u8    dccpo_send_ndp_count;
-        __u8                    dccpo_ack_ratio;
-        struct list_head        dccpo_pending;
-        struct list_head        dccpo_conf;
+struct dccp_minisock {
+        __u64                   dccpms_sequence_window;
+        __u8                    dccpms_rx_ccid;
+        __u8                    dccpms_tx_ccid;
+        __u8                    dccpms_send_ack_vector;
+        __u8                    dccpms_send_ndp_count;
+        __u8                    dccpms_ack_ratio;
+        struct list_head        dccpms_pending;
+        struct list_head        dccpms_conf;
 };
 
 struct dccp_opt_conf {
@@ -360,8 +363,9 @@ struct dccp_opt_pend {
         struct dccp_opt_conf    *dccpop_sc;
 };
 
-extern void __dccp_options_init(struct dccp_options *dccpo);
-extern void dccp_options_init(struct dccp_options *dccpo);
+extern void __dccp_minisock_init(struct dccp_minisock *dmsk);
+extern void dccp_minisock_init(struct dccp_minisock *dmsk);
+
 extern int dccp_parse_options(struct sock *sk, struct sk_buff *skb);
 
 struct dccp_request_sock {
@@ -457,7 +461,7 @@ struct dccp_sock {
         __u16                           dccps_r_ack_ratio;
         unsigned long                   dccps_ndp_count;
         __u32                           dccps_mss_cache;
-        struct dccp_options             dccps_options;
+        struct dccp_minisock            dccps_minisock;
         struct dccp_ackvec              *dccps_hc_rx_ackvec;
         struct ccid                     *dccps_hc_rx_ccid;
         struct ccid                     *dccps_hc_tx_ccid;
@@ -473,6 +477,11 @@ static inline struct dccp_sock *dccp_sk(const struct sock *sk)
         return (struct dccp_sock *)sk;
 }
 
+static inline struct dccp_minisock *dccp_msk(const struct sock *sk)
+{
+        return (struct dccp_minisock *)&dccp_sk(sk)->dccps_minisock;
+}
+
 static inline int dccp_service_not_initialized(const struct sock *sk)
 {
         return dccp_sk(sk)->dccps_service == DCCP_SERVICE_INVALID_VALUE;
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 47de17208d7a..1fe509148689 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -303,14 +303,13 @@ static inline void dccp_hdr_set_ack(struct dccp_hdr_ack_bits *dhack,
 static inline void dccp_update_gsr(struct sock *sk, u64 seq)
 {
         struct dccp_sock *dp = dccp_sk(sk);
+        const struct dccp_minisock *dmsk = dccp_msk(sk);
 
         dp->dccps_gsr = seq;
         dccp_set_seqno(&dp->dccps_swl,
-                       (dp->dccps_gsr + 1 -
-                        (dp->dccps_options.dccpo_sequence_window / 4)));
+                       dp->dccps_gsr + 1 - (dmsk->dccpms_sequence_window / 4));
         dccp_set_seqno(&dp->dccps_swh,
-                       (dp->dccps_gsr +
-                        (3 * dp->dccps_options.dccpo_sequence_window) / 4));
+                       dp->dccps_gsr + (3 * dmsk->dccpms_sequence_window) / 4);
 }
 
 static inline void dccp_update_gss(struct sock *sk, u64 seq)
@@ -320,7 +319,7 @@ static inline void dccp_update_gss(struct sock *sk, u64 seq)
         dp->dccps_awh = dp->dccps_gss = seq;
         dccp_set_seqno(&dp->dccps_awl,
                        (dp->dccps_gss -
-                        dp->dccps_options.dccpo_sequence_window + 1));
+                        dccp_msk(sk)->dccpms_sequence_window + 1));
 }
                                 
 static inline int dccp_ack_pending(const struct sock *sk)
@@ -328,7 +327,7 @@ static inline int dccp_ack_pending(const struct sock *sk)
         const struct dccp_sock *dp = dccp_sk(sk);
         return dp->dccps_timestamp_echo != 0 ||
 #ifdef CONFIG_IP_DCCP_ACKVEC
-               (dp->dccps_options.dccpo_send_ack_vector &&
+               (dccp_msk(sk)->dccpms_send_ack_vector &&
                 dccp_ackvec_pending(dp->dccps_hc_rx_ackvec)) ||
 #endif
                inet_csk_ack_scheduled(sk);
diff --git a/net/dccp/diag.c b/net/dccp/diag.c
index 3f78c00e3822..0f25dc395967 100644
--- a/net/dccp/diag.c
+++ b/net/dccp/diag.c
@@ -30,7 +30,7 @@ static void dccp_get_info(struct sock *sk, struct tcp_info *info)
         info->tcpi_backoff      = icsk->icsk_backoff;
         info->tcpi_pmtu         = icsk->icsk_pmtu_cookie;
 
-        if (dp->dccps_options.dccpo_send_ack_vector)
+        if (dccp_msk(sk)->dccpms_send_ack_vector)
                 info->tcpi_options |= TCPI_OPT_SACK;
 
         ccid_hc_rx_get_info(dp->dccps_hc_rx_ccid, sk, info);
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index ed0851fa3cb3..b09064c4643d 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -22,7 +22,7 @@
 int dccp_feat_change(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len,
                      gfp_t gfp)
 {
-        struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         struct dccp_opt_pend *opt;
 
         dccp_pr_debug("feat change type=%d feat=%d\n", type, feature);
@@ -30,8 +30,7 @@ int dccp_feat_change(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len,
         /* XXX sanity check feat change request */
 
         /* check if that feature is already being negotiated */
-        list_for_each_entry(opt, &dp->dccps_options.dccpo_pending,
-                            dccpop_node) {
+        list_for_each_entry(opt, &dmsk->dccpms_pending, dccpop_node) {
                 /* ok we found a negotiation for this option already */
                 if (opt->dccpop_feat == feature && opt->dccpop_type == type) {
                         dccp_pr_debug("Replacing old\n");
@@ -59,7 +58,7 @@ int dccp_feat_change(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len,
 
         BUG_ON(opt->dccpop_val == NULL);
 
-        list_add_tail(&opt->dccpop_node, &dp->dccps_options.dccpo_pending);
+        list_add_tail(&opt->dccpop_node, &dmsk->dccpms_pending);
         return 0;
 }
 
@@ -68,10 +67,10 @@ EXPORT_SYMBOL_GPL(dccp_feat_change);
 static int dccp_feat_update_ccid(struct sock *sk, u8 type, u8 new_ccid_nr)
 {
         struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         /* figure out if we are changing our CCID or the peer's */
         const int rx = type == DCCPO_CHANGE_R;
-        const u8 ccid_nr = rx ? dp->dccps_options.dccpo_rx_ccid :
-                                dp->dccps_options.dccpo_tx_ccid;
+        const u8 ccid_nr = rx ? dmsk->dccpms_rx_ccid : dmsk->dccpms_tx_ccid;
         struct ccid *new_ccid;
 
         /* Check if nothing is being changed. */
@@ -85,11 +84,11 @@ static int dccp_feat_update_ccid(struct sock *sk, u8 type, u8 new_ccid_nr)
         if (rx) {
                 ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
                 dp->dccps_hc_rx_ccid = new_ccid;
-                dp->dccps_options.dccpo_rx_ccid = new_ccid_nr;
+                dmsk->dccpms_rx_ccid = new_ccid_nr;
         } else {
                 ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
                 dp->dccps_hc_tx_ccid = new_ccid;
-                dp->dccps_options.dccpo_tx_ccid = new_ccid_nr;
+                dmsk->dccpms_tx_ccid = new_ccid_nr;
         }
 
         return 0;
@@ -159,9 +158,9 @@ static int dccp_feat_reconcile(struct sock *sk, struct dccp_opt_pend *opt,
                 case DCCPF_CCID:
                         /* XXX did i get this right? =P */
                         if (opt->dccpop_type == DCCPO_CHANGE_L)
-                                res = &dp->dccps_options.dccpo_tx_ccid;
+                                res = &dccp_msk(sk)->dccpms_tx_ccid;
                         else
-                                res = &dp->dccps_options.dccpo_rx_ccid;
+                                res = &dccp_msk(sk)->dccpms_rx_ccid;
                         break;
 
                 default:
@@ -226,7 +225,7 @@ static int dccp_feat_reconcile(struct sock *sk, struct dccp_opt_pend *opt,
 
 static int dccp_feat_sp(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len)
 {
-        struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         struct dccp_opt_pend *opt;
         int rc = 1;
         u8 t;
@@ -242,8 +241,7 @@ static int dccp_feat_sp(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len)
                 t = DCCPO_CHANGE_L;
 
         /* find our preference list for this feature */
-        list_for_each_entry(opt, &dp->dccps_options.dccpo_pending,
-                            dccpop_node) {
+        list_for_each_entry(opt, &dmsk->dccpms_pending, dccpop_node) {
                 if (opt->dccpop_type != t || opt->dccpop_feat != feature)
                         continue;
 
@@ -265,7 +263,7 @@ static int dccp_feat_sp(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len)
 static int dccp_feat_nn(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len)
 {
         struct dccp_opt_pend *opt;
-        struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         u8 *copy;
         int rc;
 
@@ -304,14 +302,14 @@ static int dccp_feat_nn(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len)
         }
 
         dccp_pr_debug("Confirming NN feature %d (val=%d)\n", feature, *copy);
-        list_add_tail(&opt->dccpop_node, &dp->dccps_options.dccpo_conf);
+        list_add_tail(&opt->dccpop_node, &dmsk->dccpms_conf);
 
         return 0;
 }
 
 static void dccp_feat_empty_confirm(struct sock *sk, u8 type, u8 feature)
 {
-        struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         /* XXX check if other confirms for that are queued and recycle slot */
         struct dccp_opt_pend *opt = kzalloc(sizeof(*opt), GFP_ATOMIC);
 
@@ -330,20 +328,19 @@ static void dccp_feat_empty_confirm(struct sock *sk, u8 type, u8 feature)
 
         /* change feature */
         dccp_pr_debug("Empty confirm feature %d type %d\n", feature, type);
-        list_add_tail(&opt->dccpop_node, &dp->dccps_options.dccpo_conf);
+        list_add_tail(&opt->dccpop_node, &dmsk->dccpms_conf);
 }
 
 static void dccp_feat_flush_confirm(struct sock *sk)
 {
-        struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         /* Check if there is anything to confirm in the first place */
-        int yes = !list_empty(&dp->dccps_options.dccpo_conf);
+        int yes = !list_empty(&dmsk->dccpms_conf);
 
         if (!yes) {
                 struct dccp_opt_pend *opt;
 
-                list_for_each_entry(opt, &dp->dccps_options.dccpo_pending,
-                                    dccpop_node) {
+                list_for_each_entry(opt, &dmsk->dccpms_pending, dccpop_node) {
                         if (opt->dccpop_conf) {
                                 yes = 1;
                                 break;
@@ -407,7 +404,7 @@ int dccp_feat_confirm_recv(struct sock *sk, u8 type, u8 feature,
 {
         u8 t;
         struct dccp_opt_pend *opt;
-        struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         int rc = 1;
         int all_confirmed = 1;
 
@@ -418,8 +415,7 @@ int dccp_feat_confirm_recv(struct sock *sk, u8 type, u8 feature,
         /* locate our change request */
         t = type == DCCPO_CONFIRM_L ? DCCPO_CHANGE_R : DCCPO_CHANGE_L;
 
-        list_for_each_entry(opt, &dp->dccps_options.dccpo_pending,
-                            dccpop_node) {
+        list_for_each_entry(opt, &dmsk->dccpms_pending, dccpop_node) {
                 if (!opt->dccpop_conf && opt->dccpop_type == t &&
                     opt->dccpop_feat == feature) {
                         /* we found it */
@@ -462,10 +458,10 @@ EXPORT_SYMBOL_GPL(dccp_feat_confirm_recv);
 
 void dccp_feat_clean(struct sock *sk)
 {
-        struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         struct dccp_opt_pend *opt, *next;
 
-        list_for_each_entry_safe(opt, next, &dp->dccps_options.dccpo_pending,
+        list_for_each_entry_safe(opt, next, &dmsk->dccpms_pending,
                                  dccpop_node) {
                 BUG_ON(opt->dccpop_val == NULL);
                 kfree(opt->dccpop_val);
@@ -478,16 +474,15 @@ void dccp_feat_clean(struct sock *sk)
 
                 kfree(opt);
         }
-        INIT_LIST_HEAD(&dp->dccps_options.dccpo_pending);
+        INIT_LIST_HEAD(&dmsk->dccpms_pending);
 
-        list_for_each_entry_safe(opt, next, &dp->dccps_options.dccpo_conf,
-                                 dccpop_node) {
+        list_for_each_entry_safe(opt, next, &dmsk->dccpms_conf, dccpop_node) {
                 BUG_ON(opt == NULL);
                 if (opt->dccpop_val != NULL)
                         kfree(opt->dccpop_val);
                 kfree(opt);
         }
-        INIT_LIST_HEAD(&dp->dccps_options.dccpo_conf);
+        INIT_LIST_HEAD(&dmsk->dccpms_conf);
 }
 
 EXPORT_SYMBOL_GPL(dccp_feat_clean);
@@ -498,16 +493,15 @@ EXPORT_SYMBOL_GPL(dccp_feat_clean);
  */
 int dccp_feat_clone(struct sock *oldsk, struct sock *newsk)
 {
-        struct dccp_sock *olddp = dccp_sk(oldsk);
-        struct dccp_sock *newdp = dccp_sk(newsk);
+        struct dccp_minisock *olddmsk = dccp_msk(oldsk);
+        struct dccp_minisock *newdmsk = dccp_msk(newsk);
         struct dccp_opt_pend *opt;
         int rc = 0;
 
-        INIT_LIST_HEAD(&newdp->dccps_options.dccpo_pending);
-        INIT_LIST_HEAD(&newdp->dccps_options.dccpo_conf);
+        INIT_LIST_HEAD(&newdmsk->dccpms_pending);
+        INIT_LIST_HEAD(&newdmsk->dccpms_conf);
 
-        list_for_each_entry(opt, &olddp->dccps_options.dccpo_pending,
-                            dccpop_node) {
+        list_for_each_entry(opt, &olddmsk->dccpms_pending, dccpop_node) {
                 struct dccp_opt_pend *newopt;
                 /* copy the value of the option */
                 u8 *val = kmalloc(opt->dccpop_len, GFP_ATOMIC);
@@ -525,8 +519,7 @@ int dccp_feat_clone(struct sock *oldsk, struct sock *newsk)
                 /* insert the option */
                 memcpy(newopt, opt, sizeof(*newopt));
                 newopt->dccpop_val = val;
-                list_add_tail(&newopt->dccpop_node,
-                              &newdp->dccps_options.dccpo_pending);
+                list_add_tail(&newopt->dccpop_node, &newdmsk->dccpms_pending);
 
                 /* XXX what happens with backlogs and multiple connections at
                  * once...
@@ -567,27 +560,27 @@ static int __dccp_feat_init(struct sock *sk, u8 type, u8 feat, u8 *val, u8 len)
 
 int dccp_feat_init(struct sock *sk)
 {
-        struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         int rc;
 
-        INIT_LIST_HEAD(&dp->dccps_options.dccpo_pending);
-        INIT_LIST_HEAD(&dp->dccps_options.dccpo_conf);
+        INIT_LIST_HEAD(&dmsk->dccpms_pending);
+        INIT_LIST_HEAD(&dmsk->dccpms_conf);
 
         /* CCID L */
         rc = __dccp_feat_init(sk, DCCPO_CHANGE_L, DCCPF_CCID,
-                              &dp->dccps_options.dccpo_tx_ccid, 1);
+                              &dmsk->dccpms_tx_ccid, 1);
         if (rc)
                 goto out;
 
         /* CCID R */
         rc = __dccp_feat_init(sk, DCCPO_CHANGE_R, DCCPF_CCID,
-                              &dp->dccps_options.dccpo_rx_ccid, 1);
+                              &dmsk->dccpms_rx_ccid, 1);
         if (rc)
                 goto out;
 
         /* Ack ratio */
         rc = __dccp_feat_init(sk, DCCPO_CHANGE_L, DCCPF_ACK_RATIO,
-                              &dp->dccps_options.dccpo_ack_ratio, 1);
+                              &dmsk->dccpms_ack_ratio, 1);
 out:
         return rc;
 }
diff --git a/net/dccp/input.c b/net/dccp/input.c
index f53e3fc77262..bfc53665516b 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -60,7 +60,7 @@ static void dccp_event_ack_recv(struct sock *sk, struct sk_buff *skb)
 {
         struct dccp_sock *dp = dccp_sk(sk);
 
-        if (dp->dccps_options.dccpo_send_ack_vector)
+        if (dccp_msk(sk)->dccpms_send_ack_vector)
                 dccp_ackvec_check_rcv_ackno(dp->dccps_hc_rx_ackvec, sk,
                                             DCCP_SKB_CB(skb)->dccpd_ack_seq);
 }
@@ -246,7 +246,7 @@ int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
         if (DCCP_SKB_CB(skb)->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
                 dccp_event_ack_recv(sk, skb);
 
-        if (dp->dccps_options.dccpo_send_ack_vector &&
+        if (dccp_msk(sk)->dccpms_send_ack_vector &&
             dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
                             DCCP_SKB_CB(skb)->dccpd_seq,
                             DCCP_ACKVEC_STATE_RECEIVED))
@@ -302,7 +302,7 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk,
                 if (dccp_parse_options(sk, skb))
                         goto out_invalid_packet;
 
-                if (dp->dccps_options.dccpo_send_ack_vector &&
+                if (dccp_msk(sk)->dccpms_send_ack_vector &&
                     dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
                                     DCCP_SKB_CB(skb)->dccpd_seq,
                                     DCCP_ACKVEC_STATE_RECEIVED))
@@ -486,7 +486,7 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
                 if (dcb->dccpd_ack_seq != DCCP_PKT_WITHOUT_ACK_SEQ)
                         dccp_event_ack_recv(sk, skb);
 
-                if (dp->dccps_options.dccpo_send_ack_vector &&
+                if (dccp_msk(sk)->dccpms_send_ack_vector &&
                     dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
                                     DCCP_SKB_CB(skb)->dccpd_seq,
                                     DCCP_ACKVEC_STATE_RECEIVED))
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 5324fcacb34d..c0349e5b0551 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -107,6 +107,7 @@ struct sock *dccp_create_openreq_child(struct sock *sk,
                 const struct dccp_request_sock *dreq = dccp_rsk(req);
                 struct inet_connection_sock *newicsk = inet_csk(sk);
                 struct dccp_sock *newdp = dccp_sk(newsk);
+                struct dccp_minisock *newdmsk = dccp_msk(newsk);
 
                 newdp->dccps_role          = DCCP_ROLE_SERVER;
                 newdp->dccps_hc_rx_ackvec  = NULL;
@@ -118,7 +119,7 @@ struct sock *dccp_create_openreq_child(struct sock *sk,
                 if (dccp_feat_clone(sk, newsk))
                         goto out_free;
 
-                if (newdp->dccps_options.dccpo_send_ack_vector) {
+                if (newdmsk->dccpms_send_ack_vector) {
                         newdp->dccps_hc_rx_ackvec =
                                                 dccp_ackvec_alloc(GFP_ATOMIC);
                         if (unlikely(newdp->dccps_hc_rx_ackvec == NULL))
@@ -126,10 +127,10 @@ struct sock *dccp_create_openreq_child(struct sock *sk,
                 }
 
                 newdp->dccps_hc_rx_ccid =
-                            ccid_hc_rx_new(newdp->dccps_options.dccpo_rx_ccid,
+                            ccid_hc_rx_new(newdmsk->dccpms_rx_ccid,
                                            newsk, GFP_ATOMIC);
                 newdp->dccps_hc_tx_ccid =
-                            ccid_hc_tx_new(newdp->dccps_options.dccpo_tx_ccid,
+                            ccid_hc_tx_new(newdmsk->dccpms_tx_ccid,
                                            newsk, GFP_ATOMIC);
                 if (unlikely(newdp->dccps_hc_rx_ccid == NULL ||
                              newdp->dccps_hc_tx_ccid == NULL)) {
@@ -153,7 +154,7 @@ out_free:
                  */
 
                 /* See dccp_v4_conn_request */
-                newdp->dccps_options.dccpo_sequence_window = req->rcv_wnd;
+                newdmsk->dccpms_sequence_window = req->rcv_wnd;
 
                 newdp->dccps_gar = newdp->dccps_isr = dreq->dreq_isr;
                 dccp_update_gsr(newsk, dreq->dreq_isr);
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 6e85550cc6f0..e9feb2a0c770 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -30,14 +30,14 @@ int dccp_feat_default_ack_ratio	      = DCCPF_INITIAL_ACK_RATIO;
 int dccp_feat_default_send_ack_vector = DCCPF_INITIAL_SEND_ACK_VECTOR;
 int dccp_feat_default_send_ndp_count  = DCCPF_INITIAL_SEND_NDP_COUNT;
 
-void dccp_options_init(struct dccp_options *dccpo)
+void dccp_minisock_init(struct dccp_minisock *dmsk)
 {
-        dccpo->dccpo_sequence_window = dccp_feat_default_sequence_window;
-        dccpo->dccpo_rx_ccid         = dccp_feat_default_rx_ccid;
-        dccpo->dccpo_tx_ccid         = dccp_feat_default_tx_ccid;
-        dccpo->dccpo_ack_ratio       = dccp_feat_default_ack_ratio;
-        dccpo->dccpo_send_ack_vector = dccp_feat_default_send_ack_vector;
-        dccpo->dccpo_send_ndp_count  = dccp_feat_default_send_ndp_count;
+        dmsk->dccpms_sequence_window = dccp_feat_default_sequence_window;
+        dmsk->dccpms_rx_ccid         = dccp_feat_default_rx_ccid;
+        dmsk->dccpms_tx_ccid         = dccp_feat_default_tx_ccid;
+        dmsk->dccpms_ack_ratio       = dccp_feat_default_ack_ratio;
+        dmsk->dccpms_send_ack_vector = dccp_feat_default_send_ack_vector;
+        dmsk->dccpms_send_ndp_count  = dccp_feat_default_send_ndp_count;
 }
 
 static u32 dccp_decode_value_var(const unsigned char *bf, const u8 len)
@@ -151,7 +151,7 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
                         if (pkt_type == DCCP_PKT_DATA)
                                 break;
 
-                        if (dp->dccps_options.dccpo_send_ack_vector &&
+                        if (dccp_msk(sk)->dccpms_send_ack_vector &&
                             dccp_ackvec_parse(sk, skb, opt, value, len))
                                 goto out_invalid_option;
                         break;
@@ -472,12 +472,12 @@ static int dccp_insert_feat_opt(struct sk_buff *skb, u8 type, u8 feat,
 static int dccp_insert_options_feat(struct sock *sk, struct sk_buff *skb)
 {
         struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         struct dccp_opt_pend *opt, *next;
         int change = 0;
 
         /* confirm any options [NN opts] */
-        list_for_each_entry_safe(opt, next, &dp->dccps_options.dccpo_conf,
-                                 dccpop_node) {
+        list_for_each_entry_safe(opt, next, &dmsk->dccpms_conf, dccpop_node) {
                 dccp_insert_feat_opt(skb, opt->dccpop_type,
                                      opt->dccpop_feat, opt->dccpop_val,
                                      opt->dccpop_len);
@@ -486,11 +486,10 @@ static int dccp_insert_options_feat(struct sock *sk, struct sk_buff *skb)
                         kfree(opt->dccpop_val);
                 kfree(opt);
         }
-        INIT_LIST_HEAD(&dp->dccps_options.dccpo_conf);
+        INIT_LIST_HEAD(&dmsk->dccpms_conf);
 
         /* see which features we need to send */
-        list_for_each_entry(opt, &dp->dccps_options.dccpo_pending,
-                            dccpop_node) {
+        list_for_each_entry(opt, &dmsk->dccpms_pending, dccpop_node) {
                 /* see if we need to send any confirm */
                 if (opt->dccpop_sc) {
                         dccp_insert_feat_opt(skb, opt->dccpop_type + 1,
@@ -536,15 +535,16 @@ static int dccp_insert_options_feat(struct sock *sk, struct sk_buff *skb)
 int dccp_insert_options(struct sock *sk, struct sk_buff *skb)
 {
         struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
 
         DCCP_SKB_CB(skb)->dccpd_opt_len = 0;
 
-        if (dp->dccps_options.dccpo_send_ndp_count &&
+        if (dmsk->dccpms_send_ndp_count &&
             dccp_insert_option_ndp(sk, skb))
                 return -1;
 
         if (!dccp_packet_without_ack(skb)) {
-                if (dp->dccps_options.dccpo_send_ack_vector &&
+                if (dmsk->dccpms_send_ack_vector &&
                     dccp_ackvec_pending(dp->dccps_hc_rx_ackvec) &&
                     dccp_insert_option_ackvec(sk, skb))
                         return -1;
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 8a6d0a83047c..ede969074967 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -166,9 +166,10 @@ EXPORT_SYMBOL_GPL(dccp_unhash);
 int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
 {
         struct dccp_sock *dp = dccp_sk(sk);
+        struct dccp_minisock *dmsk = dccp_msk(sk);
         struct inet_connection_sock *icsk = inet_csk(sk);
 
-        dccp_options_init(&dp->dccps_options);
+        dccp_minisock_init(&dp->dccps_minisock);
         do_gettimeofday(&dp->dccps_epoch);
 
         /*
@@ -184,22 +185,20 @@ int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
                 if (rc)
                         return rc;
 
-                if (dp->dccps_options.dccpo_send_ack_vector) {
+                if (dmsk->dccpms_send_ack_vector) {
                         dp->dccps_hc_rx_ackvec = dccp_ackvec_alloc(GFP_KERNEL);
                         if (dp->dccps_hc_rx_ackvec == NULL)
                                 return -ENOMEM;
                 }
-                dp->dccps_hc_rx_ccid =
-                                ccid_hc_rx_new(dp->dccps_options.dccpo_rx_ccid,
-                                               sk, GFP_KERNEL);
-                dp->dccps_hc_tx_ccid =
-                                ccid_hc_tx_new(dp->dccps_options.dccpo_tx_ccid,
-                                               sk, GFP_KERNEL);
+                dp->dccps_hc_rx_ccid = ccid_hc_rx_new(dmsk->dccpms_rx_ccid,
+                                                      sk, GFP_KERNEL);
+                dp->dccps_hc_tx_ccid = ccid_hc_tx_new(dmsk->dccpms_tx_ccid,
+                                                      sk, GFP_KERNEL);
                 if (unlikely(dp->dccps_hc_rx_ccid == NULL ||
                              dp->dccps_hc_tx_ccid == NULL)) {
                         ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
                         ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
-                        if (dp->dccps_options.dccpo_send_ack_vector) {
+                        if (dmsk->dccpms_send_ack_vector) {
                                 dccp_ackvec_free(dp->dccps_hc_rx_ackvec);
                                 dp->dccps_hc_rx_ackvec = NULL;
                         }
@@ -208,8 +207,8 @@ int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
                 }
         } else {
                 /* control socket doesn't need feat nego */
-                INIT_LIST_HEAD(&dp->dccps_options.dccpo_pending);
-                INIT_LIST_HEAD(&dp->dccps_options.dccpo_conf);
+                INIT_LIST_HEAD(&dmsk->dccpms_pending);
+                INIT_LIST_HEAD(&dmsk->dccpms_conf);
         }
 
         dccp_init_xmit_timers(sk);
@@ -247,7 +246,7 @@ int dccp_destroy_sock(struct sock *sk)
         kfree(dp->dccps_service_list);
         dp->dccps_service_list = NULL;
 
-        if (dp->dccps_options.dccpo_send_ack_vector) {
+        if (dccp_msk(sk)->dccpms_send_ack_vector) {
                 dccp_ackvec_free(dp->dccps_hc_rx_ackvec);
                 dp->dccps_hc_rx_ackvec = NULL;
         }