X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fbridge%2Fbr_stp_bpdu.c;h=0edbd2a1c3f3cafe6d2046360f92b5a9084235f3;hb=061964fb988ca51087948975da66ff523b3a5852;hp=60112bce66984343e8ab13121c1304a1cde29739;hpb=d29182534c5f39ff899763d1e0982d8f33791d6f;p=linux-2.6

diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index 60112bce66..0edbd2a1c3 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -17,6 +17,7 @@
 #include <linux/netfilter_bridge.h>
 #include <linux/etherdevice.h>
 #include <linux/llc.h>
+#include <net/net_namespace.h>
 #include <net/llc.h>
 #include <net/llc_pdu.h>
 #include <asm/unaligned.h>
@@ -64,7 +65,7 @@ static inline int br_get_ticks(const unsigned char *src)
 {
 	unsigned long ticks = ntohs(get_unaligned((__be16 *)src));
 
-	return (ticks * HZ + STP_HZ - 1) / STP_HZ;
+	return DIV_ROUND_UP(ticks * HZ, STP_HZ);
 }
 
 /* called under bridge lock */
@@ -141,6 +142,9 @@ int br_stp_rcv(struct sk_buff *skb, struct net_device *dev,
 	struct net_bridge *br;
 	const unsigned char *buf;
 
+	if (dev->nd_net != &init_net)
+		goto err;
+
 	if (!p)
 		goto err;