On 2019/3/1 下午9:38, Ido Schimmel wrote:
> When calculating the multipath hash for input routes the flow info is
> not available and therefore should not be used.
>
> Fixes: 24ba14406c5c ("route: Add multipath_hash in flowi_common to make
> user-define hash")
> Signed-off-by: Ido Schimmel <[email protected]>
> Cc: wenxu <[email protected]>
> ---
> net/ipv4/route.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/net/ipv4/route.c b/net/ipv4/route.c
> index 7cf4c8305071..e3ac458b5d8b 100644
> --- a/net/ipv4/route.c
> +++ b/net/ipv4/route.c
> @@ -1820,7 +1820,7 @@ static void ip_multipath_l3_keys(const struct sk_buff
> *skb,
> int fib_multipath_hash(const struct net *net, const struct flowi4 *fl4,
> const struct sk_buff *skb, struct flow_keys *flkeys)
> {
> - u32 multipath_hash = fl4->flowi4_multipath_hash;
> + u32 multipath_hash = fl4 ? fl4->flowi4_multipath_hash : 0;
> struct flow_keys hash_keys;
> u32 mhash;
>
Acked-by: wenxu <[email protected]>
