diff options
-rw-r--r-- | drivers/net/tun.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 0a3134712652..2bbefe828670 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -200,6 +200,7 @@ struct tun_flow_entry { }; #define TUN_NUM_FLOW_ENTRIES 1024 +#define TUN_MASK_FLOW_ENTRIES (TUN_NUM_FLOW_ENTRIES - 1) struct tun_prog { struct rcu_head rcu; @@ -406,7 +407,7 @@ static inline __virtio16 cpu_to_tun16(struct tun_struct *tun, u16 val) static inline u32 tun_hashfn(u32 rxhash) { - return rxhash & 0x3ff; + return rxhash & TUN_MASK_FLOW_ENTRIES; } static struct tun_flow_entry *tun_flow_find(struct hlist_head *head, u32 rxhash) |