diff options
Diffstat (limited to 'net/tipc/bearer.c')
-rw-r--r-- | net/tipc/bearer.c | 140 |
1 files changed, 70 insertions, 70 deletions
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 648f2a67f314..802ffad3200d 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -71,7 +71,7 @@ static const struct nla_policy tipc_nl_media_policy[TIPC_NLA_MEDIA_MAX + 1] = { [TIPC_NLA_MEDIA_PROP] = { .type = NLA_NESTED } }; -static void bearer_disable(struct net *net, struct tipc_bearer *b_ptr); +static void bearer_disable(struct net *net, struct tipc_bearer *b); /** * tipc_media_find - locates specified media object by name @@ -107,13 +107,13 @@ static struct tipc_media *media_find_id(u8 type) void tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a) { char addr_str[MAX_ADDR_STR]; - struct tipc_media *m_ptr; + struct tipc_media *m; int ret; - m_ptr = media_find_id(a->media_id); + m = media_find_id(a->media_id); - if (m_ptr && !m_ptr->addr2str(a, addr_str, sizeof(addr_str))) - ret = scnprintf(buf, len, "%s(%s)", m_ptr->name, addr_str); + if (m && !m->addr2str(a, addr_str, sizeof(addr_str))) + ret = scnprintf(buf, len, "%s(%s)", m->name, addr_str); else { u32 i; @@ -175,13 +175,13 @@ static int bearer_name_validate(const char *name, struct tipc_bearer *tipc_bearer_find(struct net *net, const char *name) { struct tipc_net *tn = net_generic(net, tipc_net_id); - struct tipc_bearer *b_ptr; + struct tipc_bearer *b; u32 i; for (i = 0; i < MAX_BEARERS; i++) { - b_ptr = rtnl_dereference(tn->bearer_list[i]); - if (b_ptr && (!strcmp(b_ptr->name, name))) - return b_ptr; + b = rtnl_dereference(tn->bearer_list[i]); + if (b && (!strcmp(b->name, name))) + return b; } return NULL; } @@ -189,24 +189,24 @@ struct tipc_bearer *tipc_bearer_find(struct net *net, const char *name) void tipc_bearer_add_dest(struct net *net, u32 bearer_id, u32 dest) { struct tipc_net *tn = net_generic(net, tipc_net_id); - struct tipc_bearer *b_ptr; + struct tipc_bearer *b; rcu_read_lock(); - b_ptr = rcu_dereference_rtnl(tn->bearer_list[bearer_id]); - if (b_ptr) - tipc_disc_add_dest(b_ptr->link_req); + b = rcu_dereference_rtnl(tn->bearer_list[bearer_id]); + if (b) + tipc_disc_add_dest(b->link_req); rcu_read_unlock(); } void tipc_bearer_remove_dest(struct net *net, u32 bearer_id, u32 dest) { struct tipc_net *tn = net_generic(net, tipc_net_id); - struct tipc_bearer *b_ptr; + struct tipc_bearer *b; rcu_read_lock(); - b_ptr = rcu_dereference_rtnl(tn->bearer_list[bearer_id]); - if (b_ptr) - tipc_disc_remove_dest(b_ptr->link_req); + b = rcu_dereference_rtnl(tn->bearer_list[bearer_id]); + if (b) + tipc_disc_remove_dest(b->link_req); rcu_read_unlock(); } @@ -218,8 +218,8 @@ static int tipc_enable_bearer(struct net *net, const char *name, struct nlattr *attr[]) { struct tipc_net *tn = net_generic(net, tipc_net_id); - struct tipc_bearer *b_ptr; - struct tipc_media *m_ptr; + struct tipc_bearer *b; + struct tipc_media *m; struct tipc_bearer_names b_names; char addr_string[16]; u32 bearer_id; @@ -255,31 +255,31 @@ static int tipc_enable_bearer(struct net *net, const char *name, return -EINVAL; } - m_ptr = tipc_media_find(b_names.media_name); - if (!m_ptr) { + m = tipc_media_find(b_names.media_name); + if (!m) { pr_warn("Bearer <%s> rejected, media <%s> not registered\n", name, b_names.media_name); return -EINVAL; } if (priority == TIPC_MEDIA_LINK_PRI) - priority = m_ptr->priority; + priority = m->priority; restart: bearer_id = MAX_BEARERS; with_this_prio = 1; for (i = MAX_BEARERS; i-- != 0; ) { - b_ptr = rtnl_dereference(tn->bearer_list[i]); - if (!b_ptr) { + b = rtnl_dereference(tn->bearer_list[i]); + if (!b) { bearer_id = i; continue; } - if (!strcmp(name, b_ptr->name)) { + if (!strcmp(name, b->name)) { pr_warn("Bearer <%s> rejected, already enabled\n", name); return -EINVAL; } - if ((b_ptr->priority == priority) && + if ((b->priority == priority) && (++with_this_prio > 2)) { if (priority-- == 0) { pr_warn("Bearer <%s> rejected, duplicate priority\n", @@ -297,35 +297,35 @@ restart: return -EINVAL; } - b_ptr = kzalloc(sizeof(*b_ptr), GFP_ATOMIC); - if (!b_ptr) + b = kzalloc(sizeof(*b), GFP_ATOMIC); + if (!b) return -ENOMEM; - strcpy(b_ptr->name, name); - b_ptr->media = m_ptr; - res = m_ptr->enable_media(net, b_ptr, attr); + strcpy(b->name, name); + b->media = m; + res = m->enable_media(net, b, attr); if (res) { pr_warn("Bearer <%s> rejected, enable failure (%d)\n", name, -res); return -EINVAL; } - b_ptr->identity = bearer_id; - b_ptr->tolerance = m_ptr->tolerance; - b_ptr->window = m_ptr->window; - b_ptr->domain = disc_domain; - b_ptr->net_plane = bearer_id + 'A'; - b_ptr->priority = priority; + b->identity = bearer_id; + b->tolerance = m->tolerance; + b->window = m->window; + b->domain = disc_domain; + b->net_plane = bearer_id + 'A'; + b->priority = priority; - res = tipc_disc_create(net, b_ptr, &b_ptr->bcast_addr); + res = tipc_disc_create(net, b, &b->bcast_addr); if (res) { - bearer_disable(net, b_ptr); + bearer_disable(net, b); pr_warn("Bearer <%s> rejected, discovery object creation failed\n", name); return -EINVAL; } - rcu_assign_pointer(tn->bearer_list[bearer_id], b_ptr); + rcu_assign_pointer(tn->bearer_list[bearer_id], b); pr_info("Enabled bearer <%s>, discovery domain %s, priority %u\n", name, @@ -336,11 +336,11 @@ restart: /** * tipc_reset_bearer - Reset all links established over this bearer */ -static int tipc_reset_bearer(struct net *net, struct tipc_bearer *b_ptr) +static int tipc_reset_bearer(struct net *net, struct tipc_bearer *b) { - pr_info("Resetting bearer <%s>\n", b_ptr->name); - tipc_node_delete_links(net, b_ptr->identity); - tipc_disc_reset(net, b_ptr); + pr_info("Resetting bearer <%s>\n", b->name); + tipc_node_delete_links(net, b->identity); + tipc_disc_reset(net, b); return 0; } @@ -349,26 +349,26 @@ static int tipc_reset_bearer(struct net *net, struct tipc_bearer *b_ptr) * * Note: This routine assumes caller holds RTNL lock. */ -static void bearer_disable(struct net *net, struct tipc_bearer *b_ptr) +static void bearer_disable(struct net *net, struct tipc_bearer *b) { struct tipc_net *tn = net_generic(net, tipc_net_id); u32 i; - pr_info("Disabling bearer <%s>\n", b_ptr->name); - b_ptr->media->disable_media(b_ptr); + pr_info("Disabling bearer <%s>\n", b->name); + b->media->disable_media(b); - tipc_node_delete_links(net, b_ptr->identity); - RCU_INIT_POINTER(b_ptr->media_ptr, NULL); - if (b_ptr->link_req) - tipc_disc_delete(b_ptr->link_req); + tipc_node_delete_links(net, b->identity); + RCU_INIT_POINTER(b->media_ptr, NULL); + if (b->link_req) + tipc_disc_delete(b->link_req); for (i = 0; i < MAX_BEARERS; i++) { - if (b_ptr == rtnl_dereference(tn->bearer_list[i])) { + if (b == rtnl_dereference(tn->bearer_list[i])) { RCU_INIT_POINTER(tn->bearer_list[i], NULL); break; } } - kfree_rcu(b_ptr, rcu); + kfree_rcu(b, rcu); } int tipc_enable_l2_media(struct net *net, struct tipc_bearer *b, @@ -411,7 +411,7 @@ void tipc_disable_l2_media(struct tipc_bearer *b) /** * tipc_l2_send_msg - send a TIPC packet out over an L2 interface * @buf: the packet to be sent - * @b_ptr: the bearer through which the packet is to be sent + * @b: the bearer through which the packet is to be sent * @dest: peer destination address */ int tipc_l2_send_msg(struct net *net, struct sk_buff *skb, @@ -532,14 +532,14 @@ void tipc_bearer_bc_xmit(struct net *net, u32 bearer_id, static int tipc_l2_rcv_msg(struct sk_buff *buf, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { - struct tipc_bearer *b_ptr; + struct tipc_bearer *b; rcu_read_lock(); - b_ptr = rcu_dereference_rtnl(dev->tipc_ptr); - if (likely(b_ptr)) { + b = rcu_dereference_rtnl(dev->tipc_ptr); + if (likely(b)) { if (likely(buf->pkt_type <= PACKET_BROADCAST)) { buf->next = NULL; - tipc_rcv(dev_net(dev), buf, b_ptr); + tipc_rcv(dev_net(dev), buf, b); rcu_read_unlock(); return NET_RX_SUCCESS; } @@ -564,13 +564,13 @@ static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt, { struct net_device *dev = netdev_notifier_info_to_dev(ptr); struct net *net = dev_net(dev); - struct tipc_bearer *b_ptr; + struct tipc_bearer *b; - b_ptr = rtnl_dereference(dev->tipc_ptr); - if (!b_ptr) + b = rtnl_dereference(dev->tipc_ptr); + if (!b) return NOTIFY_DONE; - b_ptr->mtu = dev->mtu; + b->mtu = dev->mtu; switch (evt) { case NETDEV_CHANGE: @@ -578,16 +578,16 @@ static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt, break; case NETDEV_GOING_DOWN: case NETDEV_CHANGEMTU: - tipc_reset_bearer(net, b_ptr); + tipc_reset_bearer(net, b); break; case NETDEV_CHANGEADDR: - b_ptr->media->raw2addr(b_ptr, &b_ptr->addr, + b->media->raw2addr(b, &b->addr, (char *)dev->dev_addr); - tipc_reset_bearer(net, b_ptr); + tipc_reset_bearer(net, b); break; case NETDEV_UNREGISTER: case NETDEV_CHANGENAME: - bearer_disable(dev_net(dev), b_ptr); + bearer_disable(dev_net(dev), b); break; } return NOTIFY_OK; @@ -623,13 +623,13 @@ void tipc_bearer_cleanup(void) void tipc_bearer_stop(struct net *net) { struct tipc_net *tn = net_generic(net, tipc_net_id); - struct tipc_bearer *b_ptr; + struct tipc_bearer *b; u32 i; for (i = 0; i < MAX_BEARERS; i++) { - b_ptr = rtnl_dereference(tn->bearer_list[i]); - if (b_ptr) { - bearer_disable(net, b_ptr); + b = rtnl_dereference(tn->bearer_list[i]); + if (b) { + bearer_disable(net, b); tn->bearer_list[i] = NULL; } } |