Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933249Ab0BEBrA (ORCPT ); Thu, 4 Feb 2010 20:47:00 -0500 Received: from cn.fujitsu.com ([222.73.24.84]:56269 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S932877Ab0BEBqx (ORCPT ); Thu, 4 Feb 2010 20:46:53 -0500 Message-ID: <4B6B789D.1000903@cn.fujitsu.com> Date: Fri, 05 Feb 2010 09:47:09 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b3pre) Gecko/20090513 Fedora/3.0-2.3.beta2.fc11 Thunderbird/3.0b2 MIME-Version: 1.0 To: David Miller CC: Andrew Morton , LKML , "netdev@vger.kernel.org" Subject: [PATCH 10/13] net: x25: use seq_list_foo() helpers References: <4B6B77FE.5000104@cn.fujitsu.com> In-Reply-To: <4B6B77FE.5000104@cn.fujitsu.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3930 Lines: 157 Simplify seq_file code. Signed-off-by: Li Zefan --- net/x25/x25_proc.c | 84 +++++----------------------------------------------- 1 files changed, 8 insertions(+), 76 deletions(-) diff --git a/net/x25/x25_proc.c b/net/x25/x25_proc.c index c4cd322..7ff3737 100644 --- a/net/x25/x25_proc.c +++ b/net/x25/x25_proc.c @@ -25,49 +25,17 @@ #include #ifdef CONFIG_PROC_FS -static __inline__ struct x25_route *x25_get_route_idx(loff_t pos) -{ - struct list_head *route_entry; - struct x25_route *rt = NULL; - - list_for_each(route_entry, &x25_route_list) { - rt = list_entry(route_entry, struct x25_route, node); - if (!pos--) - goto found; - } - rt = NULL; -found: - return rt; -} static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos) __acquires(x25_route_list_lock) { - loff_t l = *pos; - read_lock_bh(&x25_route_list_lock); - return l ? x25_get_route_idx(--l) : SEQ_START_TOKEN; + return seq_list_start_head(&x25_route_list, *pos); } static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) { - struct x25_route *rt; - - ++*pos; - if (v == SEQ_START_TOKEN) { - rt = NULL; - if (!list_empty(&x25_route_list)) - rt = list_entry(x25_route_list.next, - struct x25_route, node); - goto out; - } - rt = v; - if (rt->node.next != &x25_route_list) - rt = list_entry(rt->node.next, struct x25_route, node); - else - rt = NULL; -out: - return rt; + return seq_list_next(v, &x25_route_list, pos); } static void x25_seq_route_stop(struct seq_file *seq, void *v) @@ -78,9 +46,9 @@ static void x25_seq_route_stop(struct seq_file *seq, void *v) static int x25_seq_route_show(struct seq_file *seq, void *v) { - struct x25_route *rt; + struct x25_route *rt = list_entry(v, struct x25_route, node); - if (v == SEQ_START_TOKEN) { + if (v == &x25_route_list) { seq_puts(seq, "Address Digits Device\n"); goto out; } @@ -146,51 +114,16 @@ out: return 0; } -static __inline__ struct x25_forward *x25_get_forward_idx(loff_t pos) -{ - struct x25_forward *f; - struct list_head *entry; - - list_for_each(entry, &x25_forward_list) { - f = list_entry(entry, struct x25_forward, node); - if (!pos--) - goto found; - } - - f = NULL; -found: - return f; -} - static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos) __acquires(x25_forward_list_lock) { - loff_t l = *pos; - read_lock_bh(&x25_forward_list_lock); - return l ? x25_get_forward_idx(--l) : SEQ_START_TOKEN; + return seq_list_start_head(&x25_forward_list, *pos); } static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos) { - struct x25_forward *f; - - ++*pos; - if (v == SEQ_START_TOKEN) { - f = NULL; - if (!list_empty(&x25_forward_list)) - f = list_entry(x25_forward_list.next, - struct x25_forward, node); - goto out; - } - f = v; - if (f->node.next != &x25_forward_list) - f = list_entry(f->node.next, struct x25_forward, node); - else - f = NULL; -out: - return f; - + return seq_list_next(v, &x25_forward_list, pos); } static void x25_seq_forward_stop(struct seq_file *seq, void *v) @@ -201,9 +134,9 @@ static void x25_seq_forward_stop(struct seq_file *seq, void *v) static int x25_seq_forward_show(struct seq_file *seq, void *v) { - struct x25_forward *f; + struct x25_forward *f = list_entry(v, struct x25_forward, node); - if (v == SEQ_START_TOKEN) { + if (v == &x25_forward_list) { seq_printf(seq, "lci dev1 dev2\n"); goto out; } @@ -212,7 +145,6 @@ static int x25_seq_forward_show(struct seq_file *seq, void *v) seq_printf(seq, "%d %-10s %-10s\n", f->lci, f->dev1->name, f->dev2->name); - out: return 0; } -- 1.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/