linux-kernel - Re: [PATCH net-next] mptcp: Reorder fields in 'struct mptcp_pm_add

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Message-ID: <ZJBpUaUoAmIPpU70@nanopsycho>
Date:   Mon, 19 Jun 2023 16:42:25 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     Matthieu Baerts <matthieu.baerts@...sares.net>,
        Mat Martineau <martineau@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org, netdev@...r.kernel.org,
        mptcp@...ts.linux.dev
Subject: Re: [PATCH net-next] mptcp: Reorder fields in 'struct
 mptcp_pm_add_entry'

Sun, Jun 18, 2023 at 11:46:46AM CEST, christophe.jaillet@...adoo.fr wrote:
>Group some variables based on their sizes to reduce hole and avoid padding.
>On x86_64, this shrinks the size of 'struct mptcp_pm_add_entry'
>from 136 to 128 bytes.
>
>It saves a few bytes of memory and is more cache-line friendly.
>
>Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

Reviewed-by: Jiri Pirko <jiri@...dia.com>