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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2006-09-01 00:29:06 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-09-22 15:18:15 -0700
commitef047f5e1085d6393748d1ee27d6327905f098dc (patch)
treeb1ac74cd97e5e39afedbecbffd8feaf59458d3d8
parent366e4adc0f9ef33f56c62f980a7d83775e64abd0 (diff)
downloadblackbird-op-linux-ef047f5e1085d6393748d1ee27d6327905f098dc.tar.gz
blackbird-op-linux-ef047f5e1085d6393748d1ee27d6327905f098dc.zip
[NET]: Use BUILD_BUG_ON() for checking size of skb->cb.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv4/af_inet.c5
-rw-r--r--net/ipv6/af_inet6.c7
-rw-r--r--net/netlink/af_netlink.c5
-rw-r--r--net/unix/af_unix.c5
4 files changed, 5 insertions, 17 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index f2e8927f4596..fdd89e37b9aa 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1254,10 +1254,7 @@ static int __init inet_init(void)
struct list_head *r;
int rc = -EINVAL;
- if (sizeof(struct inet_skb_parm) > sizeof(dummy_skb->cb)) {
- printk(KERN_CRIT "%s: panic\n", __FUNCTION__);
- goto out;
- }
+ BUILD_BUG_ON(sizeof(struct inet_skb_parm) > sizeof(dummy_skb->cb));
rc = proto_register(&tcp_prot, 1);
if (rc)
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index fc9c8a99bea6..bf6e8aff19d4 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -761,6 +761,8 @@ static int __init inet6_init(void)
struct list_head *r;
int err;
+ BUILD_BUG_ON(sizeof(struct inet6_skb_parm) > sizeof(dummy_skb->cb));
+
#ifdef MODULE
#if 0 /* FIXME --RR */
if (!mod_member_present(&__this_module, can_unload))
@@ -770,11 +772,6 @@ static int __init inet6_init(void)
#endif
#endif
- if (sizeof(struct inet6_skb_parm) > sizeof(dummy_skb->cb)) {
- printk(KERN_CRIT "inet6_proto_init: size fault\n");
- return -EINVAL;
- }
-
err = proto_register(&tcpv6_prot, 1);
if (err)
goto out;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index a80e4456e204..d56e0d21f919 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1762,8 +1762,6 @@ static struct net_proto_family netlink_family_ops = {
.owner = THIS_MODULE, /* for consistency 8) */
};
-extern void netlink_skb_parms_too_large(void);
-
static int __init netlink_proto_init(void)
{
struct sk_buff *dummy_skb;
@@ -1775,8 +1773,7 @@ static int __init netlink_proto_init(void)
if (err != 0)
goto out;
- if (sizeof(struct netlink_skb_parms) > sizeof(dummy_skb->cb))
- netlink_skb_parms_too_large();
+ BUILD_BUG_ON(sizeof(struct netlink_skb_parms) > sizeof(dummy_skb->cb));
nl_table = kcalloc(MAX_LINKS, sizeof(*nl_table), GFP_KERNEL);
if (!nl_table)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index de6ec519272e..7c91c2024d49 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2060,10 +2060,7 @@ static int __init af_unix_init(void)
int rc = -1;
struct sk_buff *dummy_skb;
- if (sizeof(struct unix_skb_parms) > sizeof(dummy_skb->cb)) {
- printk(KERN_CRIT "%s: panic\n", __FUNCTION__);
- goto out;
- }
+ BUILD_BUG_ON(sizeof(struct unix_skb_parms) > sizeof(dummy_skb->cb));
rc = proto_register(&unix_proto, 1);
if (rc != 0) {
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