linux-kernel - Re: [PATCH v2 iproute2-next] bridge: add support for L2 multicast groups

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Date:   Fri, 6 Nov 2020 09:40:12 -0700
From:   David Ahern <dsahern@...il.com>
To:     Vladimir Oltean <olteanv@...il.com>,
        David Ahern <dsahern@...il.com>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <nikolay@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        bridge@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Stephen Hemminger <stephen@...workplumber.org>, andrew@...n.ch,
        f.fainelli@...il.com, vivien.didelot@...il.com, jiri@...lanox.com,
        idosch@...sch.org
Subject: Re: [PATCH v2 iproute2-next] bridge: add support for L2 multicast
 groups

On 10/29/20 4:28 PM, Vladimir Oltean wrote:
> @@ -168,9 +176,14 @@ static void print_mdb_entry(FILE *f, int ifindex, const struct br_mdb_entry *e,
>  	print_string(PRINT_ANY, "port", " port %s",
>  		     ll_index_to_name(e->ifindex));
>  
> +	if (af == AF_INET || af == AF_INET6)
> +		addr = inet_ntop(af, grp, abuf, sizeof(abuf));
> +	else
> +		addr = ll_addr_n2a(grp, ETH_ALEN, 0, abuf, sizeof(abuf));
> +

The above can be replaced with a single call to rt_addr_n2a_r.

>  	print_color_string(PRINT_ANY, ifa_family_color(af),
> -			    "grp", " grp %s",
> -			    inet_ntop(af, grp, abuf, sizeof(abuf)));
> +			    "grp", " grp %s", addr);
> +
>  	if (tb && tb[MDBA_MDB_EATTR_SOURCE]) {
>  		src = (const void *)RTA_DATA(tb[MDBA_MDB_EATTR_SOURCE]);
>  		print_color_string(PRINT_ANY, ifa_family_color(af),

I think the rest is ok.