[Devel] [PATCH 1/3] [RAW]: Family check in the /proc/net/raw[6] is extra.

[Denis V. Lunev]

Different hashtables are used for IPv6 and IPv4 raw sockets, so no need to
check the socket family in the iterator over hashtables. Clean this out.

Signed-off-by: Denis V. Lunev <den at openvz.org>
---
 include/net/raw.h |    4 +---
 net/ipv4/raw.c    |   12 ++++--------
 net/ipv6/raw.c    |    2 +-
 3 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/include/net/raw.h b/include/net/raw.h
index cca81d8..c7ea7a2 100644
--- a/include/net/raw.h
+++ b/include/net/raw.h
@@ -41,7 +41,6 @@ extern void raw_proc_exit(void);
 struct raw_iter_state {
 	struct seq_net_private p;
 	int bucket;
-	unsigned short family;
 	struct raw_hashinfo *h;
 };
 
@@ -49,8 +48,7 @@ struct raw_iter_state {
 void *raw_seq_start(struct seq_file *seq, loff_t *pos);
 void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
 void raw_seq_stop(struct seq_file *seq, void *v);
-int raw_seq_open(struct inode *ino, struct file *file, struct raw_hashinfo *h,
-		unsigned short family);
+int raw_seq_open(struct inode *ino, struct file *file, struct raw_hashinfo *h);
 
 #endif
 
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index f863c3d..507cbfe 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -862,8 +862,7 @@ static struct sock *raw_get_first(struct seq_file *seq)
 		struct hlist_node *node;
 
 		sk_for_each(sk, node, &state->h->ht[state->bucket])
-			if (sk->sk_net == state->p.net &&
-					sk->sk_family == state->family)
+			if (sk->sk_net == state->p.net)
 				goto found;
 	}
 	sk = NULL;
@@ -879,8 +878,7 @@ static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
 		sk = sk_next(sk);
 try_again:
 		;
-	} while (sk && sk->sk_net != state->p.net &&
-			sk->sk_family != state->family);
+	} while (sk && sk->sk_net != state->p.net);
 
 	if (!sk && ++state->bucket < RAW_HTABLE_SIZE) {
 		sk = sk_head(&state->h->ht[state->bucket]);
@@ -974,8 +972,7 @@ static const struct seq_operations raw_seq_ops = {
 	.show  = raw_seq_show,
 };
 
-int raw_seq_open(struct inode *ino, struct file *file, struct raw_hashinfo *h,
-		unsigned short family)
+int raw_seq_open(struct inode *ino, struct file *file, struct raw_hashinfo *h)
 {
 	int err;
 	struct raw_iter_state *i;
@@ -987,14 +984,13 @@ int raw_seq_open(struct inode *ino, struct file *file, struct raw_hashinfo *h,
 
 	i = raw_seq_private((struct seq_file *)file->private_data);
 	i->h = h;
-	i->family = family;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(raw_seq_open);
 
 static int raw_v4_seq_open(struct inode *inode, struct file *file)
 {
-	return raw_seq_open(inode, file, &raw_v4_hashinfo, PF_INET);
+	return raw_seq_open(inode, file, &raw_v4_hashinfo);
 }
 
 static const struct file_operations raw_seq_fops = {
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index d61c63d..a2cf499 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1262,7 +1262,7 @@ static const struct seq_operations raw6_seq_ops = {
 
 static int raw6_seq_open(struct inode *inode, struct file *file)
 {
-	return raw_seq_open(inode, file, &raw_v6_hashinfo, PF_INET6);
+	return raw_seq_open(inode, file, &raw_v6_hashinfo);
 }
 
 static const struct file_operations raw6_seq_fops = {
-- 
1.5.3.rc5