From 1cd6718272903c72f36ac23a7e72ed4cebf1f8e8 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 15 Apr 2018 10:36:56 +0200 Subject: [PATCH] netfilter/x_tables: switch to proc_create_seq_private And remove proc boilerplate code. Signed-off-by: Christoph Hellwig --- net/netfilter/x_tables.c | 42 ++++++---------------------------------- 1 file changed, 6 insertions(+), 36 deletions(-) diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c index 344dd01a5027..0e314f95a4a3 100644 --- a/net/netfilter/x_tables.c +++ b/net/netfilter/x_tables.c @@ -1648,22 +1648,6 @@ static const struct seq_operations xt_match_seq_ops = { .show = xt_match_seq_show, }; -static int xt_match_open(struct inode *inode, struct file *file) -{ - struct nf_mttg_trav *trav; - trav = __seq_open_private(file, &xt_match_seq_ops, sizeof(*trav)); - if (!trav) - return -ENOMEM; - return 0; -} - -static const struct file_operations xt_match_ops = { - .open = xt_match_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release_private, -}; - static void *xt_target_seq_start(struct seq_file *seq, loff_t *pos) { return xt_mttg_seq_start(seq, pos, true); @@ -1698,22 +1682,6 @@ static const struct seq_operations xt_target_seq_ops = { .show = xt_target_seq_show, }; -static int xt_target_open(struct inode *inode, struct file *file) -{ - struct nf_mttg_trav *trav; - trav = __seq_open_private(file, &xt_target_seq_ops, sizeof(*trav)); - if (!trav) - return -ENOMEM; - return 0; -} - -static const struct file_operations xt_target_ops = { - .open = xt_target_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release_private, -}; - #define FORMAT_TABLES "_tables_names" #define FORMAT_MATCHES "_tables_matches" #define FORMAT_TARGETS "_tables_targets" @@ -1787,8 +1755,9 @@ int xt_proto_init(struct net *net, u_int8_t af) strlcpy(buf, xt_prefix[af], sizeof(buf)); strlcat(buf, FORMAT_MATCHES, sizeof(buf)); - proc = proc_create_data(buf, 0440, net->proc_net, &xt_match_ops, - (void *)(unsigned long)af); + proc = proc_create_seq_private(buf, 0440, net->proc_net, + &xt_match_seq_ops, sizeof(struct nf_mttg_trav), + (void *)(unsigned long)af); if (!proc) goto out_remove_tables; if (uid_valid(root_uid) && gid_valid(root_gid)) @@ -1796,8 +1765,9 @@ int xt_proto_init(struct net *net, u_int8_t af) strlcpy(buf, xt_prefix[af], sizeof(buf)); strlcat(buf, FORMAT_TARGETS, sizeof(buf)); - proc = proc_create_data(buf, 0440, net->proc_net, &xt_target_ops, - (void *)(unsigned long)af); + proc = proc_create_seq_private(buf, 0440, net->proc_net, + &xt_target_seq_ops, sizeof(struct nf_mttg_trav), + (void *)(unsigned long)af); if (!proc) goto out_remove_matches; if (uid_valid(root_uid) && gid_valid(root_gid))