diff options
Diffstat (limited to 'net/bridge/br_stp_bpdu.c')
| -rw-r--r-- | net/bridge/br_stp_bpdu.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c index 60112bce6698..0edbd2a1c3f3 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; |