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Subject: Re: [PATCH net-next 4/5] net: mscc: ocelot: make entry_type a member
 of struct ocelot_multicast
To:     Vladimir Oltean <vladimir.oltean@nxp.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>,
        Claudiu Manoil <claudiu.manoil@nxp.com>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Vivien Didelot <vivien.didelot@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
References: <20201029022738.722794-1-vladimir.oltean@nxp.com>
 <20201029022738.722794-5-vladimir.oltean@nxp.com>
From:   Florian Fainelli <f.fainelli@gmail.com>
Message-ID: <5831e03c-1714-4ac8-3073-d18f807aff26@gmail.com>
Date:   Wed, 28 Oct 2020 19:37:09 -0700
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On 10/28/2020 7:27 PM, Vladimir Oltean wrote:
> This saves a re-classification of the MDB address on deletion.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
> ---

[snip]

>  	mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
>  	if (!mc) {
>  		/* New entry */
> -		int pgid = ocelot_mdb_get_pgid(ocelot, entry_type);
> +		int pgid;
> +
> +		mc = devm_kzalloc(ocelot->dev, sizeof(*mc), GFP_KERNEL);

If the MDB object is programmed with SWITCHDEV_OBJ_ID_HOST_MDB then you
would need this gfp_t to be GFP_ATOMIC per
net/bridge/br_mdb.c::__br_mdb_notify, if this is a regular
SWITCHDEV_OBJ_ID_MDB then GFP_KERNEL appears to be fine.

Looks like this existed before, so that might have to be fixed separately.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
-- 
Florian