linux-kernel - Re: [PATCH] [v3] mptcp: Fix duplicated argument in protocol.h

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Message-ID: <0b030119a755fb246a617f3ab30c7664d4f95323.camel@redhat.com>
Date:   Wed, 01 Sep 2021 10:13:45 +0200
From:   Paolo Abeni <pabeni@...hat.com>
To:     Wan Jiabing <wanjiabing@...o.com>,
        Mat Martineau <mathew.j.martineau@...ux.intel.com>,
        Matthieu Baerts <matthieu.baerts@...sares.net>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        mptcp@...ts.linux.dev, linux-kernel@...r.kernel.org
Cc:     kael_w@...h.net
Subject: Re: [PATCH] [v3] mptcp: Fix duplicated argument in protocol.h

Hello,

On Wed, 2021-09-01 at 11:19 +0800, Wan Jiabing wrote:
> Fix the following coccicheck warning:
> ./net/mptcp/protocol.h:36:50-73: duplicated argument to & or |
> 
> The OPTION_MPTCP_MPJ_SYNACK here is duplicate.
> Here should be OPTION_MPTCP_MPJ_ACK.
> 
> Fixes: 74c7dfbee3e18 ("mptcp: consolidate in_opt sub-options fields in a bitmask")
> Signed-off-by: Wan Jiabing <wanjiabing@...o.com>

Not sure what happen to my previous reply, most probably PEBKAC, sorry.

WRT this patch, note that the dup is harmless, as in the input path we
always use the mask and not the individual bit - vice versa in the
output path. Still the cleanup is worthy and patch LGTM.
Acked-by: Paolo Abeni <pabeni@...hat.com>