diff options
Diffstat (limited to 'net/tipc/name_table.c')
| -rw-r--r-- | net/tipc/name_table.c | 57 |
1 files changed, 43 insertions, 14 deletions
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 2ac33d32edc2..ee5ac40ea2b6 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -3,6 +3,7 @@ * * Copyright (c) 2000-2006, 2014-2018, Ericsson AB * Copyright (c) 2004-2008, 2010-2014, Wind River Systems + * Copyright (c) 2020, Red Hat Inc * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -103,7 +104,8 @@ RB_DECLARE_CALLBACKS_MAX(static, sr_callbacks, * range match * @sr: the service range pointer as a loop cursor * @sc: the pointer to tipc service which holds the service range rbtree - * @start, end: the range (end >= start) for matching + * @start: beginning of the search range (end >= start) for matching + * @end: end of the search range (end >= start) for matching */ #define service_range_foreach_match(sr, sc, start, end) \ for (sr = service_range_match_first((sc)->ranges.rb_node, \ @@ -117,7 +119,8 @@ RB_DECLARE_CALLBACKS_MAX(static, sr_callbacks, /** * service_range_match_first - find first service range matching a range * @n: the root node of service range rbtree for searching - * @start, end: the range (end >= start) for matching + * @start: beginning of the search range (end >= start) for matching + * @end: end of the search range (end >= start) for matching * * Return: the leftmost service range node in the rbtree that overlaps the * specific range if any. Otherwise, returns NULL. @@ -166,7 +169,8 @@ static struct service_range *service_range_match_first(struct rb_node *n, /** * service_range_match_next - find next service range matching a range * @n: a node in service range rbtree from which the searching starts - * @start, end: the range (end >= start) for matching + * @start: beginning of the search range (end >= start) for matching + * @end: end of the search range (end >= start) for matching * * Return: the next service range node to the given node in the rbtree that * overlaps the specific range if any. Otherwise, returns NULL. @@ -218,6 +222,13 @@ static int hash(int x) /** * tipc_publ_create - create a publication structure + * @type: name sequence type + * @lower: name sequence lower bound + * @upper: name sequence upper bound + * @scope: publication scope + * @node: network address of publishing socket + * @port: publishing port + * @key: publication key */ static struct publication *tipc_publ_create(u32 type, u32 lower, u32 upper, u32 scope, u32 node, u32 port, @@ -245,6 +256,8 @@ static struct publication *tipc_publ_create(u32 type, u32 lower, u32 upper, /** * tipc_service_create - create a service structure for the specified 'type' + * @type: service type + * @hd: name_table services list * * Allocates a single range structure and sets it to all 0's. */ @@ -361,6 +374,9 @@ err: /** * tipc_service_remove_publ - remove a publication from a service + * @sr: service_range to remove publication from + * @node: target node + * @key: target publication key */ static struct publication *tipc_service_remove_publ(struct service_range *sr, u32 node, u32 key) @@ -377,7 +393,7 @@ static struct publication *tipc_service_remove_publ(struct service_range *sr, return NULL; } -/** +/* * Code reused: time_after32() for the same purpose */ #define publication_after(pa, pb) time_after32((pa)->id, (pb)->id) @@ -395,6 +411,8 @@ static int tipc_publ_sort(void *priv, struct list_head *a, * tipc_service_subscribe - attach a subscription, and optionally * issue the prescribed number of events if there is any service * range overlapping with the requested range + * @service: the tipc_service to attach the @sub to + * @sub: the subscription to attach */ static void tipc_service_subscribe(struct tipc_service *service, struct tipc_subscription *sub) @@ -403,12 +421,12 @@ static void tipc_service_subscribe(struct tipc_service *service, struct publication *p, *first, *tmp; struct list_head publ_list; struct service_range *sr; - struct tipc_name_seq ns; + struct tipc_service_range r; u32 filter; - ns.type = tipc_sub_read(sb, seq.type); - ns.lower = tipc_sub_read(sb, seq.lower); - ns.upper = tipc_sub_read(sb, seq.upper); + r.type = tipc_sub_read(sb, seq.type); + r.lower = tipc_sub_read(sb, seq.lower); + r.upper = tipc_sub_read(sb, seq.upper); filter = tipc_sub_read(sb, filter); tipc_sub_get(sub); @@ -418,7 +436,7 @@ static void tipc_service_subscribe(struct tipc_service *service, return; INIT_LIST_HEAD(&publ_list); - service_range_foreach_match(sr, service, ns.lower, ns.upper) { + service_range_foreach_match(sr, service, r.lower, r.upper) { first = NULL; list_for_each_entry(p, &sr->all_publ, all_publ) { if (filter & TIPC_SUB_PORTS) @@ -528,14 +546,16 @@ exit: /** * tipc_nametbl_translate - perform service instance to socket translation - * - * On entry, 'dnode' is the search domain used during translation. + * @net: network namespace + * @type: message type + * @instance: message instance + * @dnode: the search domain used during translation * * On exit: * - if translation is deferred to another node, leave 'dnode' unchanged and - * return 0 + * return 0 * - if translation is attempted and succeeds, set 'dnode' to the publishing - * node and return the published (non-zero) port number + * node and return the published (non-zero) port number * - if translation is attempted and fails, set 'dnode' to 0 and return 0 * * Note that for legacy users (node configured with Z.C.N address format) the @@ -756,6 +776,11 @@ exit: /** * tipc_nametbl_withdraw - withdraw a service binding + * @net: network namespace + * @type: service type + * @lower: service range lower bound + * @upper: service range upper bound + * @key: target publication key */ int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 upper, u32 key) @@ -791,6 +816,7 @@ int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, /** * tipc_nametbl_subscribe - add a subscription object to the name table + * @sub: subscription to add */ bool tipc_nametbl_subscribe(struct tipc_subscription *sub) { @@ -821,6 +847,7 @@ bool tipc_nametbl_subscribe(struct tipc_subscription *sub) /** * tipc_nametbl_unsubscribe - remove a subscription object from name table + * @sub: subscription to remove */ void tipc_nametbl_unsubscribe(struct tipc_subscription *sub) { @@ -870,7 +897,9 @@ int tipc_nametbl_init(struct net *net) } /** - * tipc_service_delete - purge all publications for a service and delete it + * tipc_service_delete - purge all publications for a service and delete it + * @net: the associated network namespace + * @sc: tipc_service to delete */ static void tipc_service_delete(struct net *net, struct tipc_service *sc) { |