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Message-ID: <48fcf444-f411-b4de-7ece-9ec2dfe89d47@blackwall.org>
Date: Tue, 17 Oct 2023 12:05:14 +0300
From: Nikolay Aleksandrov <razor@...ckwall.org>
To: Ido Schimmel <idosch@...dia.com>, netdev@...r.kernel.org,
bridge@...ts.linux-foundation.org
Cc: davem@...emloft.net, kuba@...nel.org, edumazet@...gle.com,
pabeni@...hat.com, roopa@...dia.com, mlxsw@...dia.com
Subject: Re: [PATCH net-next 02/13] bridge: mcast: Account for missing
attributes
On 10/16/23 16:12, Ido Schimmel wrote:
> The 'MDBA_MDB' and 'MDBA_MDB_ENTRY' nest attributes are not accounted
> for when calculating the size of MDB notifications. Add them along with
> comments for existing attributes.
>
> Signed-off-by: Ido Schimmel <idosch@...dia.com>
> ---
> net/bridge/br_mdb.c | 15 +++++++++++----
> 1 file changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
> index fb58bb1b60e8..08de94bffc12 100644
> --- a/net/bridge/br_mdb.c
> +++ b/net/bridge/br_mdb.c
> @@ -452,11 +452,18 @@ static int nlmsg_populate_mdb_fill(struct sk_buff *skb,
>
> static size_t rtnl_mdb_nlmsg_size(struct net_bridge_port_group *pg)
> {
> - size_t nlmsg_size = NLMSG_ALIGN(sizeof(struct br_port_msg)) +
> - nla_total_size(sizeof(struct br_mdb_entry)) +
> - nla_total_size(sizeof(u32));
> struct net_bridge_group_src *ent;
> - size_t addr_size = 0;
> + size_t nlmsg_size, addr_size = 0;
> +
> + nlmsg_size = NLMSG_ALIGN(sizeof(struct br_port_msg)) +
> + /* MDBA_MDB */
> + nla_total_size(0) +
> + /* MDBA_MDB_ENTRY */
> + nla_total_size(0) +
> + /* MDBA_MDB_ENTRY_INFO */
> + nla_total_size(sizeof(struct br_mdb_entry)) +
> + /* MDBA_MDB_EATTR_TIMER */
> + nla_total_size(sizeof(u32));
>
> if (!pg)
> goto out;
Acked-by: Nikolay Aleksandrov <razor@...ckwall.org>
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