From a2b79b414df97a70c33f874b631e06830431d233 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 8 Feb 2010 23:21:22 +0000 Subject: [PATCH] net: ipx: use seq_list_foo() helpers Simplify seq_file code. Signed-off-by: Li Zefan Signed-off-by: David S. Miller --- net/ipx/ipx_proc.c | 90 +++++++--------------------------------------- 1 file changed, 12 insertions(+), 78 deletions(-) diff --git a/net/ipx/ipx_proc.c b/net/ipx/ipx_proc.c index 576178482f89..26b5bfcf1d03 100644 --- a/net/ipx/ipx_proc.c +++ b/net/ipx/ipx_proc.c @@ -13,45 +13,15 @@ #include #include -static __inline__ struct ipx_interface *ipx_get_interface_idx(loff_t pos) -{ - struct ipx_interface *i; - - list_for_each_entry(i, &ipx_interfaces, node) - if (!pos--) - goto out; - i = NULL; -out: - return i; -} - -static struct ipx_interface *ipx_interfaces_next(struct ipx_interface *i) -{ - struct ipx_interface *rc = NULL; - - if (i->node.next != &ipx_interfaces) - rc = list_entry(i->node.next, struct ipx_interface, node); - return rc; -} - static void *ipx_seq_interface_start(struct seq_file *seq, loff_t *pos) { - loff_t l = *pos; - spin_lock_bh(&ipx_interfaces_lock); - return l ? ipx_get_interface_idx(--l) : SEQ_START_TOKEN; + return seq_list_start_head(&ipx_interfaces, *pos); } static void *ipx_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos) { - struct ipx_interface *i; - - ++*pos; - if (v == SEQ_START_TOKEN) - i = ipx_interfaces_head(); - else - i = ipx_interfaces_next(v); - return i; + return seq_list_next(v, &ipx_interfaces, pos); } static void ipx_seq_interface_stop(struct seq_file *seq, void *v) @@ -63,7 +33,7 @@ static int ipx_seq_interface_show(struct seq_file *seq, void *v) { struct ipx_interface *i; - if (v == SEQ_START_TOKEN) { + if (v == &ipx_interfaces) { seq_puts(seq, "Network Node_Address Primary Device " "Frame_Type"); #ifdef IPX_REFCNT_DEBUG @@ -73,7 +43,7 @@ static int ipx_seq_interface_show(struct seq_file *seq, void *v) goto out; } - i = v; + i = list_entry(v, struct ipx_interface, node); seq_printf(seq, "%08lX ", (unsigned long int)ntohl(i->if_netnum)); seq_printf(seq, "%02X%02X%02X%02X%02X%02X ", i->if_node[0], i->if_node[1], i->if_node[2], @@ -89,53 +59,15 @@ out: return 0; } -static struct ipx_route *ipx_routes_head(void) -{ - struct ipx_route *rc = NULL; - - if (!list_empty(&ipx_routes)) - rc = list_entry(ipx_routes.next, struct ipx_route, node); - return rc; -} - -static struct ipx_route *ipx_routes_next(struct ipx_route *r) -{ - struct ipx_route *rc = NULL; - - if (r->node.next != &ipx_routes) - rc = list_entry(r->node.next, struct ipx_route, node); - return rc; -} - -static __inline__ struct ipx_route *ipx_get_route_idx(loff_t pos) -{ - struct ipx_route *r; - - list_for_each_entry(r, &ipx_routes, node) - if (!pos--) - goto out; - r = NULL; -out: - return r; -} - static void *ipx_seq_route_start(struct seq_file *seq, loff_t *pos) { - loff_t l = *pos; read_lock_bh(&ipx_routes_lock); - return l ? ipx_get_route_idx(--l) : SEQ_START_TOKEN; + return seq_list_start_head(&ipx_routes, *pos); } static void *ipx_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) { - struct ipx_route *r; - - ++*pos; - if (v == SEQ_START_TOKEN) - r = ipx_routes_head(); - else - r = ipx_routes_next(v); - return r; + return seq_list_next(v, &ipx_routes, pos); } static void ipx_seq_route_stop(struct seq_file *seq, void *v) @@ -147,11 +79,13 @@ static int ipx_seq_route_show(struct seq_file *seq, void *v) { struct ipx_route *rt; - if (v == SEQ_START_TOKEN) { + if (v == &ipx_routes) { seq_puts(seq, "Network Router_Net Router_Node\n"); goto out; } - rt = v; + + rt = list_entry(v, struct ipx_route, node); + seq_printf(seq, "%08lX ", (unsigned long int)ntohl(rt->ir_net)); if (rt->ir_routed) seq_printf(seq, "%08lX %02X%02X%02X%02X%02X%02X\n", @@ -226,9 +160,9 @@ static void *ipx_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos) spin_unlock_bh(&i->if_sklist_lock); sk = NULL; for (;;) { - i = ipx_interfaces_next(i); - if (!i) + if (i->node.next == &ipx_interfaces) break; + i = list_entry(i->node.next, struct ipx_interface, node); spin_lock_bh(&i->if_sklist_lock); if (!hlist_empty(&i->if_sklist)) { sk = sk_head(&i->if_sklist); -- 2.20.1