Subject: Re: [PATCH iproute2-next 2/3] ipmroute: don't complain about unicast routes

From: Stephen Hemminger <[email-masked]>
Date: Wed, 7 Mar 2018 08:03:51 -0800

On Tue,  6 Mar 2018 17:03:54 -0800
Stephen Hemminger <[email-masked]> wrote:

> From: Stephen Hemminger <[email-masked]>
> 
> Every non-multicast route prints an error message.
> Kernel doesn't filter out unicast routes, it is up to filter function
> to do this.
> 
> Signed-off-by: Stephen Hemminger <[email-masked]>
> ---
>  ip/ipmroute.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/ip/ipmroute.c b/ip/ipmroute.c
> index aa5029b44f41..03ca0575e571 100644
> --- a/ip/ipmroute.c
> +++ b/ip/ipmroute.c
> @@ -75,15 +75,14 @@ int print_mroute(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
>  		fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
>  		return -1;
>  	}
> -	if (r->rtm_type != RTN_MULTICAST) {
> -		fprintf(stderr, "Not a multicast route (type: %s)\n",
> -			rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1)));
> +
> +	if (r->rtm_type != RTN_MULTICAST)
>  		return 0;
> -	}
>  
>  	parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
>  	table = rtm_get_table(r, tb);
>  
> +
>  	if (filter.tb > 0 && filter.tb != table)
>  		return 0;
>  

Actually, this is a recent kernel regression. Should be fixed there