sctp: fix checkpatch errors with space required or prohibited

fix checkpatch errors while the space is required or prohibited
to the "=,()++..."

Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 files changed, 43 insertions, 43 deletions

diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index 5c9f64c1c906..78767aa20435 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -41,7 +41,7 @@ static struct sctp_hmac sctp_hmac_list[SCTP_AUTH_NUM_HMACS] = {
         },
         {
                 .hmac_id = SCTP_AUTH_HMAC_ID_SHA1,
-                .hmac_name="hmac(sha1)",
+                .hmac_name = "hmac(sha1)",
                 .hmac_len = SCTP_SHA1_SIG_SIZE,
         },
         {
@@ -51,7 +51,7 @@ static struct sctp_hmac sctp_hmac_list[SCTP_AUTH_NUM_HMACS] = {
 #if defined (CONFIG_CRYPTO_SHA256) || defined (CONFIG_CRYPTO_SHA256_MODULE)
         {
                 .hmac_id = SCTP_AUTH_HMAC_ID_SHA256,
-                .hmac_name="hmac(sha256)",
+                .hmac_name = "hmac(sha256)",
                 .hmac_len = SCTP_SHA256_SIG_SIZE,
         }
 #endif
@@ -163,7 +163,7 @@ static int sctp_auth_compare_vectors(struct sctp_auth_bytes *vector1,
                  * lead-zero padded.  If it is not, it
                  * is automatically larger numerically.
                  */
-                for (i = 0; i < abs(diff); i++ ) {
+                for (i = 0; i < abs(diff); i++) {
                         if (longer[i] != 0)
                                 return diff;
                 }
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 5573e425b0c0..158701da2d31 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -254,7 +254,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
                 SCTP_INC_STATS_USER(sock_net(asoc->base.sk), SCTP_MIB_FRAGUSRMSGS);
 
         /* Create chunks for all the full sized DATA chunks. */
-        for (i=0, len=first_len; i < whole; i++) {
+        for (i = 0, len = first_len; i < whole; i++) {
                 frag = SCTP_DATA_MIDDLE_FRAG;
 
                 if (0 == i)
@@ -317,7 +317,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
                         goto errout;
                 }
 
-                err = sctp_user_addto_chunk(chunk, offset, over,msgh->msg_iov);
+                err = sctp_user_addto_chunk(chunk, offset, over, msgh->msg_iov);
 
                 /* Put the chunk->skb back into the form expected by send.  */
                 __skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr
diff --git a/net/sctp/input.c b/net/sctp/input.c
index e978235c34fc..44f8793d91df 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -119,7 +119,7 @@ int sctp_rcv(struct sk_buff *skb)
         struct sctp_af *af;
         struct net *net = dev_net(skb->dev);
 
-        if (skb->pkt_type!=PACKET_HOST)
+        if (skb->pkt_type != PACKET_HOST)
                 goto discard_it;
 
         SCTP_INC_STATS_BH(net, SCTP_MIB_INSCTPPACKS);
@@ -1055,7 +1055,7 @@ static struct sctp_association *__sctp_rcv_walk_lookup(struct net *net,
                 if (ch_end > skb_tail_pointer(skb))
                         break;
 
-                switch(ch->type) {
+                switch (ch->type) {
                     case SCTP_CID_AUTH:
                             have_auth = chunk_num;
                             break;
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 14191ab4165f..0f6259a6a932 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -402,7 +402,7 @@ static void sctp_v6_copy_addrlist(struct list_head *addrlist,
 }
 
 /* Initialize a sockaddr_storage from in incoming skb. */
-static void sctp_v6_from_skb(union sctp_addr *addr,struct sk_buff *skb,
+static void sctp_v6_from_skb(union sctp_addr *addr, struct sk_buff *skb,
                              int is_saddr)
 {
         __be16 *port;
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index b6b09f3f1a81..111516c3d34c 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -110,7 +110,7 @@ static inline int sctp_cacc_skip_3_1_d(struct sctp_transport *primary,
                                        struct sctp_transport *transport,
                                        int count_of_newacks)
 {
-        if (count_of_newacks >=2 && transport != primary)
+        if (count_of_newacks >= 2 && transport != primary)
                 return 1;
         return 0;
 }
@@ -470,7 +470,7 @@ void sctp_retransmit(struct sctp_outq *q, struct sctp_transport *transport,
         struct net *net = sock_net(q->asoc->base.sk);
         int error = 0;
 
-        switch(reason) {
+        switch (reason) {
         case SCTP_RTXR_T3_RTX:
                 SCTP_INC_STATS(net, SCTP_MIB_T3_RETRANSMITS);
                 sctp_transport_lower_cwnd(transport, SCTP_LOWER_CWND_T3_RTX);
@@ -1088,7 +1088,7 @@ sctp_flush_out:
          *
          * --xguo
          */
-        while ((ltransport = sctp_list_dequeue(&transport_list)) != NULL ) {
+        while ((ltransport = sctp_list_dequeue(&transport_list)) != NULL) {
                 struct sctp_transport *t = list_entry(ltransport,
                                                       struct sctp_transport,
                                                       send_ready);
@@ -1217,7 +1217,7 @@ int sctp_outq_sack(struct sctp_outq *q, struct sctp_chunk *chunk)
                  * destinations for which cacc_saw_newack is set.
                  */
                 if (transport->cacc.cacc_saw_newack)
-                        count_of_newacks ++;
+                        count_of_newacks++;
         }
 
         /* Move the Cumulative TSN Ack Point if appropriate.  */
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index d9aaf9641aaa..439d87206820 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2308,7 +2308,7 @@ int sctp_process_init(struct sctp_association *asoc, struct sctp_chunk *chunk,
          * added as the primary transport.  The source address seems to
          * be a a better choice than any of the embedded addresses.
          */
-        if(!sctp_assoc_add_peer(asoc, peer_addr, gfp, SCTP_ACTIVE))
+        if (!sctp_assoc_add_peer(asoc, peer_addr, gfp, SCTP_ACTIVE))
                 goto nomem;
 
         if (sctp_cmp_addr_exact(sctp_source(chunk), peer_addr))
@@ -3334,7 +3334,7 @@ static __be16 sctp_get_asconf_response(struct sctp_chunk *asconf_ack,
 
         while (asconf_ack_len > 0) {
                 if (asconf_ack_param->crr_id == asconf_param->crr_id) {
-                        switch(asconf_ack_param->param_hdr.type) {
+                        switch (asconf_ack_param->param_hdr.type) {
                         case SCTP_PARAM_SUCCESS_REPORT:
                                 return SCTP_ERROR_NO_ERROR;
                         case SCTP_PARAM_ERR_CAUSE:
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 2821dcbbe070..ded6db66fb24 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -404,7 +404,7 @@ void sctp_generate_proto_unreach_event(unsigned long data)
         struct sctp_transport *transport = (struct sctp_transport *) data;
         struct sctp_association *asoc = transport->asoc;
         struct net *net = sock_net(asoc->base.sk);
-        
+
         sctp_bh_lock_sock(asoc->base.sk);
         if (sock_owned_by_user(asoc->base.sk)) {
                 pr_debug("%s: sock is busy\n", __func__);
@@ -543,7 +543,7 @@ static void sctp_cmd_init_failed(sctp_cmd_seq_t *commands,
 {
         struct sctp_ulpevent *event;
 
-        event = sctp_ulpevent_make_assoc_change(asoc,0, SCTP_CANT_STR_ASSOC,
+        event = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_CANT_STR_ASSOC,
                                                 (__u16)error, 0, 0, NULL,
                                                 GFP_ATOMIC);
 
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index ee02771d8b9c..bc690b4b4971 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -2945,7 +2945,7 @@ sctp_disposition_t sctp_sf_eat_data_6_2(struct net *net,
                 return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
                                                   commands);
 
-        error = sctp_eat_data(asoc, chunk, commands );
+        error = sctp_eat_data(asoc, chunk, commands);
         switch (error) {
         case SCTP_IERROR_NO_ERROR:
                 break;
@@ -3066,7 +3066,7 @@ sctp_disposition_t sctp_sf_eat_data_fast_4_4(struct net *net,
                 return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
                                                   commands);
 
-        error = sctp_eat_data(asoc, chunk, commands );
+        error = sctp_eat_data(asoc, chunk, commands);
         switch (error) {
         case SCTP_IERROR_NO_ERROR:
         case SCTP_IERROR_HIGH_TSN:
@@ -3765,7 +3765,7 @@ sctp_disposition_t sctp_sf_do_asconf_ack(struct net *net,
                  */
                 sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
                                 SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
-                sctp_add_cmd_sf(commands, SCTP_CMD_DISCARD_PACKET,SCTP_NULL());
+                sctp_add_cmd_sf(commands, SCTP_CMD_DISCARD_PACKET, SCTP_NULL());
                 sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
                                 SCTP_ERROR(ECONNABORTED));
                 sctp_add_cmd_sf(commands, SCTP_CMD_ASSOC_FAILED,
@@ -3799,7 +3799,7 @@ sctp_disposition_t sctp_sf_do_asconf_ack(struct net *net,
                 /* We are going to ABORT, so we might as well stop
                  * processing the rest of the chunks in the packet.
                  */
-                sctp_add_cmd_sf(commands, SCTP_CMD_DISCARD_PACKET,SCTP_NULL());
+                sctp_add_cmd_sf(commands, SCTP_CMD_DISCARD_PACKET, SCTP_NULL());
                 sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
                                 SCTP_ERROR(ECONNABORTED));
                 sctp_add_cmd_sf(commands, SCTP_CMD_ASSOC_FAILED,
@@ -4451,7 +4451,7 @@ static sctp_disposition_t sctp_sf_violation_chunklen(
                                      void *arg,
                                      sctp_cmd_seq_t *commands)
 {
-        static const char err_str[]="The following chunk had invalid length:";
+        static const char err_str[] = "The following chunk had invalid length:";
 
         return sctp_sf_abort_violation(net, ep, asoc, arg, commands, err_str,
                                         sizeof(err_str));
@@ -4514,7 +4514,7 @@ static sctp_disposition_t sctp_sf_violation_ctsn(
                                      void *arg,
                                      sctp_cmd_seq_t *commands)
 {
-        static const char err_str[]="The cumulative tsn ack beyond the max tsn currently sent:";
+        static const char err_str[] = "The cumulative tsn ack beyond the max tsn currently sent:";
 
         return sctp_sf_abort_violation(net, ep, asoc, arg, commands, err_str,
                                         sizeof(err_str));
@@ -4534,7 +4534,7 @@ static sctp_disposition_t sctp_sf_violation_chunk(
                                      void *arg,
                                      sctp_cmd_seq_t *commands)
 {
-        static const char err_str[]="The following chunk violates protocol:";
+        static const char err_str[] = "The following chunk violates protocol:";
 
         if (!asoc)
                 return sctp_sf_violation(net, ep, asoc, type, arg, commands);
@@ -6000,7 +6000,7 @@ static struct sctp_packet *sctp_ootb_pkt_new(struct net *net,
                 /* Special case the INIT-ACK as there is no peer's vtag
                  * yet.
                  */
-                switch(chunk->chunk_hdr->type) {
+                switch (chunk->chunk_hdr->type) {
                 case SCTP_CID_INIT_ACK:
                 {
                         sctp_initack_chunk_t *initack;
@@ -6017,7 +6017,7 @@ static struct sctp_packet *sctp_ootb_pkt_new(struct net *net,
                 /* Special case the INIT and stale COOKIE_ECHO as there is no
                  * vtag yet.
                  */
-                switch(chunk->chunk_hdr->type) {
+                switch (chunk->chunk_hdr->type) {
                 case SCTP_CID_INIT:
                 {
                         sctp_init_chunk_t *init;
@@ -6231,7 +6231,7 @@ static int sctp_eat_data(const struct sctp_association *asoc,
                 /* We are going to ABORT, so we might as well stop
                  * processing the rest of the chunks in the packet.
                  */
-                sctp_add_cmd_sf(commands, SCTP_CMD_DISCARD_PACKET,SCTP_NULL());
+                sctp_add_cmd_sf(commands, SCTP_CMD_DISCARD_PACKET, SCTP_NULL());
                 sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
                                 SCTP_ERROR(ECONNABORTED));
                 sctp_add_cmd_sf(commands, SCTP_CMD_ASSOC_FAILED,
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index d39fd0c2c4cf..500972a9647e 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1568,7 +1568,7 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
         struct net *net = sock_net(sk);
         struct sctp_sock *sp;
         struct sctp_endpoint *ep;
-        struct sctp_association *new_asoc=NULL, *asoc=NULL;
+        struct sctp_association *new_asoc = NULL, *asoc = NULL;
         struct sctp_transport *transport, *chunk_tp;
         struct sctp_chunk *chunk;
         union sctp_addr to;
@@ -2462,7 +2462,7 @@ static int sctp_setsockopt_peer_addr_params(struct sock *sk,
         int hb_change, pmtud_change, sackdelay_change;
 
         if (optlen != sizeof(struct sctp_paddrparams))
-                return - EINVAL;
+                return -EINVAL;
 
         if (copy_from_user(&params, optval, optlen))
                 return -EFAULT;
@@ -2483,7 +2483,7 @@ static int sctp_setsockopt_peer_addr_params(struct sock *sk,
         /* If an address other than INADDR_ANY is specified, and
          * no transport is found, then the request is invalid.
          */
-        if (!sctp_is_any(sk, ( union sctp_addr *)&params.spp_address)) {
+        if (!sctp_is_any(sk, (union sctp_addr *)&params.spp_address)) {
                 trans = sctp_addr_id2transport(sk, &params.spp_address,
                                                params.spp_assoc_id);
                 if (!trans)
@@ -2588,7 +2588,7 @@ static int sctp_setsockopt_delayed_ack(struct sock *sk,
                 else
                         params.sack_freq = 0;
         } else
-                return - EINVAL;
+                return -EINVAL;
 
         /* Validate value parameter. */
         if (params.sack_delay > 500)
@@ -3332,7 +3332,7 @@ static int sctp_setsockopt_hmac_ident(struct sock *sk,
         if (optlen < sizeof(struct sctp_hmacalgo))
                 return -EINVAL;
 
-        hmacs= memdup_user(optval, optlen);
+        hmacs = memdup_user(optval, optlen);
         if (IS_ERR(hmacs))
                 return PTR_ERR(hmacs);
 
@@ -3370,7 +3370,7 @@ static int sctp_setsockopt_auth_key(struct sock *sk,
         if (optlen <= sizeof(struct sctp_authkey))
                 return -EINVAL;
 
-        authkey= memdup_user(optval, optlen);
+        authkey = memdup_user(optval, optlen);
         if (IS_ERR(authkey))
                 return PTR_ERR(authkey);
 
@@ -4467,7 +4467,7 @@ static int sctp_getsockopt_peer_addr_params(struct sock *sk, int len,
         /* If an address other than INADDR_ANY is specified, and
          * no transport is found, then the request is invalid.
          */
-        if (!sctp_is_any(sk, ( union sctp_addr *)&params.spp_address)) {
+        if (!sctp_is_any(sk, (union sctp_addr *)&params.spp_address)) {
                 trans = sctp_addr_id2transport(sk, &params.spp_address,
                                                params.spp_assoc_id);
                 if (!trans) {
@@ -4578,7 +4578,7 @@ static int sctp_getsockopt_delayed_ack(struct sock *sk, int len,
                 if (copy_from_user(&params, optval, len))
                         return -EFAULT;
         } else
-                return - EINVAL;
+                return -EINVAL;
 
         /* Get association, if sack_assoc_id != 0 and the socket is a one
          * to many style socket, and an association was not found, then
@@ -4668,8 +4668,8 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len,
         if (!asoc)
                 return -EINVAL;
 
-        to = optval + offsetof(struct sctp_getaddrs,addrs);
-        space_left = len - offsetof(struct sctp_getaddrs,addrs);
+        to = optval + offsetof(struct sctp_getaddrs, addrs);
+        space_left = len - offsetof(struct sctp_getaddrs, addrs);
 
         list_for_each_entry(from, &asoc->peer.transport_addr_list,
                                 transports) {
@@ -4729,7 +4729,7 @@ static int sctp_copy_laddrs(struct sock *sk, __u16 port, void *to,
                 memcpy(to, &temp, addrlen);
 
                 to += addrlen;
-                cnt ++;
+                cnt++;
                 space_left -= addrlen;
                 *bytes_copied += addrlen;
         }
@@ -4778,8 +4778,8 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len,
                 bp = &asoc->base.bind_addr;
         }
 
-        to = optval + offsetof(struct sctp_getaddrs,addrs);
-        space_left = len - offsetof(struct sctp_getaddrs,addrs);
+        to = optval + offsetof(struct sctp_getaddrs, addrs);
+        space_left = len - offsetof(struct sctp_getaddrs, addrs);
 
         addrs = kmalloc(space_left, GFP_KERNEL);
         if (!addrs)
@@ -4818,7 +4818,7 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len,
                 memcpy(buf, &temp, addrlen);
                 buf += addrlen;
                 bytes_copied += addrlen;
-                cnt ++;
+                cnt++;
                 space_left -= addrlen;
         }
 
@@ -5090,7 +5090,7 @@ static int sctp_getsockopt_associnfo(struct sock *sk, int len,
                 assocparams.sasoc_cookie_life = ktime_to_ms(asoc->cookie_life);
 
                 list_for_each(pos, &asoc->peer.transport_addr_list) {
-                        cnt ++;
+                        cnt++;
                 }
 
                 assocparams.sasoc_number_peer_destinations = cnt;
diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c
index a67470083be8..2d96640b7ad8 100644
--- a/net/sctp/ulpqueue.c
+++ b/net/sctp/ulpqueue.c
@@ -107,7 +107,7 @@ int sctp_ulpq_tail_data(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk,
         event = sctp_ulpq_reasm(ulpq, event);
 
         /* Do ordering if needed.  */
-        if ((event) && (event->msg_flags & MSG_EOR)){
+        if ((event) && (event->msg_flags & MSG_EOR)) {
                 /* Create a temporary list to collect chunks on.  */
                 skb_queue_head_init(&temp);
                 __skb_queue_tail(&temp, sctp_event2skb(event));
@@ -726,7 +726,7 @@ static void sctp_ulpq_reasm_drain(struct sctp_ulpq *ulpq)
 
         while ((event = sctp_ulpq_retrieve_reassembled(ulpq)) != NULL) {
                 /* Do ordering if needed.  */
-                if ((event) && (event->msg_flags & MSG_EOR)){
+                if ((event) && (event->msg_flags & MSG_EOR)) {
                         skb_queue_head_init(&temp);
                         __skb_queue_tail(&temp, sctp_event2skb(event));