netdev - Re: [PATCH net-next] Bonding: add missed

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Message-ID: <20211116120058.494d6204@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 16 Nov 2021 12:00:58 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Hangbin Liu <liuhangbin@...il.com>
Cc:     netdev@...r.kernel.org, Jay Vosburgh <j.vosburgh@...il.com>,
        Veaceslav Falico <vfalico@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        Jarod Wilson <jarod@...hat.com>, Jiri Pirko <jiri@...nulli.us>,
        "David S . Miller" <davem@...emloft.net>,
        Denis Kirjanov <dkirjanov@...e.de>,
        David Ahern <dsahern@...il.com>
Subject: Re: [PATCH net-next] Bonding: add missed_max option

On Tue, 16 Nov 2021 16:48:40 +0800 Hangbin Liu wrote:
> +	[IFLA_BOND_MISSED_MAX]		= { .type = NLA_U32 },

Why NLA_U32...

>  
>  static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = {
> @@ -453,6 +454,15 @@ static int bond_changelink(struct net_device *bond_dev, struct nlattr *tb[],
>  			return err;
>  	}
>  
> +	if (data[IFLA_BOND_MISSED_MAX]) {
> +		int missed_max = nla_get_u8(data[IFLA_BOND_MISSED_MAX]);

If you read and write a u8?