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tipc: split variable assignments out of conditional expressions 

Cleans up TIPC's source code to eliminate assigning values to variables
within conditional expressions, improving code readability and reducing
warnings from various code checker tools.

These changes are purely cosmetic and do not alter the operation of TIPC
in any way.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Allan Stephens 2010-12-31 18:59:33 +00:00 коммит произвёл David S. Miller
Родитель 0e65967e33
Коммит 2db9983a43
4 изменённых файлов: 56 добавлений и 32 удалений
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3
net/tipc/bearer.c
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@ -251,7 +251,8 @@ static int bearer_name_validate(const char *name,
/* ensure all component parts of bearer name are present */
media_name = name_copy;
if ((if_name = strchr(media_name, ':')) == NULL)
if_name = strchr(media_name, ':');
if (if_name == NULL)
return 0;
*(if_name++) = 0;
media_len = if_name - media_name;

33
net/tipc/core.c
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@ -115,10 +115,11 @@ int tipc_core_start_net(unsigned long addr)
{
int res;
if ((res = tipc_net_start(addr)) ||
(res = tipc_eth_media_start())) {
res = tipc_net_start(addr);
if (!res)
res = tipc_eth_media_start();
if (res)
tipc_core_stop_net();
}
return res;
}
@ -157,15 +158,22 @@ static int tipc_core_start(void)
get_random_bytes(&tipc_random, sizeof(tipc_random));
tipc_mode = TIPC_NODE_MODE;
if ((res = tipc_handler_start()) ||
(res = tipc_ref_table_init(tipc_max_ports, tipc_random)) ||
(res = tipc_nametbl_init()) ||
(res = tipc_k_signal((Handler)tipc_subscr_start, 0)) ||
(res = tipc_k_signal((Handler)tipc_cfg_init, 0)) ||
(res = tipc_netlink_start()) ||
(res = tipc_socket_init())) {
res = tipc_handler_start();
if (!res)
res = tipc_ref_table_init(tipc_max_ports, tipc_random);
if (!res)
res = tipc_nametbl_init();
if (!res)
res = tipc_k_signal((Handler)tipc_subscr_start, 0);
if (!res)
res = tipc_k_signal((Handler)tipc_cfg_init, 0);
if (!res)
res = tipc_netlink_start();
if (!res)
res = tipc_socket_init();
if (res)
tipc_core_stop();
}
return res;
}
@ -188,7 +196,8 @@ static int __init tipc_init(void)
tipc_max_nodes = CONFIG_TIPC_NODES;
tipc_net_id = 4711;
if ((res = tipc_core_start()))
res = tipc_core_start();
if (res)
err("Unable to start in single node mode\n");
else
info("Started in single node mode\n");

16
net/tipc/link.c
Просмотреть файл

@ -187,14 +187,17 @@ static int link_name_validate(const char *name, struct link_name *name_parts)
/* ensure all component parts of link name are present */
addr_local = name_copy;
if ((if_local = strchr(addr_local, ':')) == NULL)
if_local = strchr(addr_local, ':');
if (if_local == NULL)
return 0;
*(if_local++) = 0;
if ((addr_peer = strchr(if_local, '-')) == NULL)
addr_peer = strchr(if_local, '-');
if (addr_peer == NULL)
return 0;
*(addr_peer++) = 0;
if_local_len = addr_peer - if_local;
if ((if_peer = strchr(addr_peer, ':')) == NULL)
if_peer = strchr(addr_peer, ':');
if (if_peer == NULL)
return 0;
*(if_peer++) = 0;
if_peer_len = strlen(if_peer) + 1;
@ -2044,8 +2047,8 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf)
strcpy((strrchr(l_ptr->name, ':') + 1), (char *)msg_data(msg));
if ((msg_tol = msg_link_tolerance(msg)) &&
(msg_tol > l_ptr->tolerance))
msg_tol = msg_link_tolerance(msg);
if (msg_tol > l_ptr->tolerance)
link_set_supervision_props(l_ptr, msg_tol);
if (msg_linkprio(msg) > l_ptr->priority)
@ -2074,7 +2077,8 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf)
break;
case STATE_MSG:
if ((msg_tol = msg_link_tolerance(msg)))
msg_tol = msg_link_tolerance(msg);
if (msg_tol)
link_set_supervision_props(l_ptr, msg_tol);
if (msg_linkprio(msg) &&

36
net/tipc/socket.c
Просмотреть файл

@ -563,7 +563,8 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
do {
if (dest->addrtype == TIPC_ADDR_NAME) {
if ((res = dest_name_check(dest, m)))
res = dest_name_check(dest, m);
if (res)
break;
res = tipc_send2name(tport->ref,
&dest->addr.name.name,
@ -580,7 +581,8 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
res = -EOPNOTSUPP;
break;
}
if ((res = dest_name_check(dest, m)))
res = dest_name_check(dest, m);
if (res)
break;
res = tipc_multicast(tport->ref,
&dest->addr.nameseq,
@ -750,7 +752,8 @@ static int send_stream(struct kiocb *iocb, struct socket *sock,
bytes_to_send = curr_left;
my_iov.iov_base = curr_start;
my_iov.iov_len = bytes_to_send;
if ((res = send_packet(NULL, sock, &my_msg, 0)) < 0) {
res = send_packet(NULL, sock, &my_msg, 0);
if (res < 0) {
if (bytes_sent)
res = bytes_sent;
goto exit;
@ -845,12 +848,15 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
if (unlikely(err)) {
anc_data[0] = err;
anc_data[1] = msg_data_sz(msg);
if ((res = put_cmsg(m, SOL_TIPC, TIPC_ERRINFO, 8, anc_data)))
return res;
if (anc_data[1] &&
(res = put_cmsg(m, SOL_TIPC, TIPC_RETDATA, anc_data[1],
msg_data(msg))))
res = put_cmsg(m, SOL_TIPC, TIPC_ERRINFO, 8, anc_data);
if (res)
return res;
if (anc_data[1]) {
res = put_cmsg(m, SOL_TIPC, TIPC_RETDATA, anc_data[1],
msg_data(msg));
if (res)
return res;
}
}
/* Optionally capture message destination object */
@ -878,9 +884,11 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
default:
has_name = 0;
}
if (has_name &&
(res = put_cmsg(m, SOL_TIPC, TIPC_DESTNAME, 12, anc_data)))
return res;
if (has_name) {
res = put_cmsg(m, SOL_TIPC, TIPC_DESTNAME, 12, anc_data);
if (res)
return res;
}
return 0;
}
@ -1664,7 +1672,8 @@ static int setsockopt(struct socket *sock,
return -ENOPROTOOPT;
if (ol < sizeof(value))
return -EINVAL;
if ((res = get_user(value, (u32 __user *)ov)))
res = get_user(value, (u32 __user *)ov);
if (res)
return res;
lock_sock(sk);
@ -1722,7 +1731,8 @@ static int getsockopt(struct socket *sock,
return put_user(0, ol);
if (lvl != SOL_TIPC)
return -ENOPROTOOPT;
if ((res = get_user(len, ol)))
res = get_user(len, ol);
if (res)
return res;
lock_sock(sk);