linux-kernel - Re: [PATCH] bridge: simplify a br_multicast_query

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Message-Id: <20140423.144748.1259564888396787227.davem@davemloft.net>
Date:	Wed, 23 Apr 2014 14:47:48 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	linus.luessing@....de
Cc:	netdev@...r.kernel.org, bridge@...ts.linux-foundation.org,
	stephen@...workplumber.org, linux-kernel@...r.kernel.org,
	hannes@...essinduktion.org
Subject: Re: [PATCH] bridge: simplify a br_multicast_query_received()
 function call

From: Linus Lüssing <linus.luessing@....de>
Date: Mon, 21 Apr 2014 20:59:35 +0200

> The call from the IPv6 part can be simplified as the beginning of the
> calling function ensures that we end up here when having a proper IPv6
> source address only.
> 
> Introduced by 6565b9eeef194afbb3beec80d6dd2447f4091f8c
> ("bridge: multicast: add sanity check for query source addresses")
> 
> Reported-by: Hannes Frederic Sowa <hannes@...essinduktion.org>
> Signed-off-by: Linus Lüssing <linus.luessing@....de>
> ---
>  net/bridge/br_multicast.c |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
> index 7b757b5..d2c3aae 100644
> --- a/net/bridge/br_multicast.c
> +++ b/net/bridge/br_multicast.c
> @@ -1282,8 +1282,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
>  		goto out;
>  	}
>  
> -	br_multicast_query_received(br, port, &br->ip6_querier,
> -				    !ipv6_addr_any(&ip6h->saddr),
> +	br_multicast_query_received(br, port, &br->ip6_querier, 1,
>  				    is_general_query, max_delay);
>  
>  	if (!group)

This doesn't make any sense to me, is_general_query can be false at this
point.

Furthermore, even if your change would be correct, the argument is a
boolean not an integer.
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