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authorAllan Stephens <allan.stephens@windriver.com>2011-11-08 18:48:28 (GMT)
committerPaul Gortmaker <paul.gortmaker@windriver.com>2012-02-24 22:05:17 (GMT)
commitb58343f9ea75f02ef48b984767511c6b3ba76eaf (patch)
tree9569124c832d5ff91f4a2191a13f31ac8c59f0d7
parent077a26f029e76a5918edf9c1d44d5566eec719fc (diff)
downloadlinux-b58343f9ea75f02ef48b984767511c6b3ba76eaf.tar.xz
tipc: Eliminate support for tipc_mode global variable
Removes all references to the global variable that records whether TIPC is running in "single node" mode or "network" mode, since this information can be easily deduced from the global variable that records TIPC's network address. (i.e. a non-zero network address means that TIPC is running in network mode.) The changes made update most existing mode-based checks to use the network address global variable. A few checks that are no longer needed are removed entirely, along with any associated code lying on non-executable control paths. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
-rw-r--r--net/tipc/bearer.c2
-rw-r--r--net/tipc/config.c4
-rw-r--r--net/tipc/core.c2
-rw-r--r--net/tipc/core.h8
-rw-r--r--net/tipc/net.c7
-rw-r--r--net/tipc/node.c2
6 files changed, 5 insertions, 20 deletions
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 5f5e89e..5dfd89c 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -435,7 +435,7 @@ int tipc_enable_bearer(const char *name, u32 disc_domain, u32 priority)
u32 i;
int res = -EINVAL;
- if (tipc_mode != TIPC_NET_MODE) {
+ if (!tipc_own_addr) {
warn("Bearer <%s> rejected, not supported in standalone mode\n",
name);
return -ENOPROTOOPT;
diff --git a/net/tipc/config.c b/net/tipc/config.c
index 7ca3854..f76d3b1 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -179,7 +179,7 @@ static struct sk_buff *cfg_set_own_addr(void)
if (!tipc_addr_node_valid(addr))
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (node address)");
- if (tipc_mode == TIPC_NET_MODE)
+ if (tipc_own_addr)
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (cannot change node address once assigned)");
@@ -268,7 +268,7 @@ static struct sk_buff *cfg_set_netid(void)
if (value < 1 || value > 9999)
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (network id must be 1-9999)");
- if (tipc_mode == TIPC_NET_MODE)
+ if (tipc_own_addr)
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (cannot change network id once TIPC has joined a network)");
tipc_net_id = value;
diff --git a/net/tipc/core.c b/net/tipc/core.c
index ec381d4..68eba03 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -53,7 +53,6 @@
/* global variables used by multiple sub-systems within TIPC */
-int tipc_mode;
int tipc_random;
const char tipc_alphabet[] =
@@ -144,7 +143,6 @@ static int tipc_core_start(void)
int res;
get_random_bytes(&tipc_random, sizeof(tipc_random));
- tipc_mode = TIPC_NODE_MODE;
res = tipc_handler_start();
if (!res)
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 9842ec0..13837e0 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -130,13 +130,6 @@ void tipc_msg_dbg(struct print_buf *, struct tipc_msg *, const char *);
#define ELINKCONG EAGAIN /* link congestion <=> resource unavailable */
/*
- * TIPC operating mode routines
- */
-
-#define TIPC_NODE_MODE 1
-#define TIPC_NET_MODE 2
-
-/*
* Global configuration variables
*/
@@ -151,7 +144,6 @@ extern int tipc_remote_management;
* Other global variables
*/
-extern int tipc_mode;
extern int tipc_random;
extern const char tipc_alphabet[];
diff --git a/net/tipc/net.c b/net/tipc/net.c
index 2abd4be..d4531b0 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -175,14 +175,10 @@ int tipc_net_start(u32 addr)
{
char addr_string[16];
- if (tipc_mode != TIPC_NODE_MODE)
- return -ENOPROTOOPT;
-
tipc_subscr_stop();
tipc_cfg_stop();
tipc_own_addr = addr;
- tipc_mode = TIPC_NET_MODE;
tipc_named_reinit();
tipc_port_reinit();
@@ -201,10 +197,9 @@ void tipc_net_stop(void)
{
struct tipc_node *node, *t_node;
- if (tipc_mode != TIPC_NET_MODE)
+ if (!tipc_own_addr)
return;
write_lock_bh(&tipc_net_lock);
- tipc_mode = TIPC_NODE_MODE;
tipc_bearer_stop();
tipc_bclink_stop();
list_for_each_entry_safe(node, t_node, &tipc_node_list, list)
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 12ddc65..a34cabc 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -406,7 +406,7 @@ struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space)
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (network address)");
- if (tipc_mode != TIPC_NET_MODE)
+ if (!tipc_own_addr)
return tipc_cfg_reply_none();
read_lock_bh(&tipc_net_lock);