linux-kernel - Re: [PATCH net-next v2] net/ip6mr: Fix build with !CONFIG_IPV6_PIMSM

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Date:   Sun, 27 Feb 2022 11:51:15 -0800
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Dmitry Safonov <dima@...sta.com>
Cc:     linux-kernel@...r.kernel.org,
        Dmitry Safonov <0x7f454c46@...il.com>,
        Mobashshera Rasool <mobash.rasool.linux@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v2] net/ip6mr: Fix build with
 !CONFIG_IPV6_PIMSM_V2

On Fri, Feb 25, 2022 at 02:52:06PM +0000, Dmitry Safonov wrote:
> The following build-error on my config:
> net/ipv6/ip6mr.c: In function ‘ip6_mroute_setsockopt’:
> net/ipv6/ip6mr.c:1656:14: error: unused variable ‘do_wrmifwhole’ [-Werror=unused-variable]
>  1656 |         bool do_wrmifwhole;
>       |              ^
> 
> Cc: Mobashshera Rasool <mobash.rasool.linux@...il.com>
> Cc: David S. Miller <davem@...emloft.net>
> Cc: Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
> Cc: David Ahern <dsahern@...nel.org>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: netdev@...r.kernel.org
> Fixes: 4b340a5a726d

Documentation/process/submitting-patches.rst:

If your patch fixes a bug in a specific commit, e.g. you found an issue using
``git bisect``, please use the 'Fixes:' tag with the first 12 characters of
the SHA-1 ID, and the one line summary.  Do not split the tag across multiple
lines, tags are exempt from the "wrap at 75 columns" rule in order to simplify
parsing scripts.  For example::

        Fixes: 54a4f0239f2e ("KVM: MMU: make kvm_mmu_zap_page() return the number of pages it actually freed")

The following ``git config`` settings can be used to add a pretty format for
outputting the above style in the ``git log`` or ``git show`` commands::

        [core]
                abbrev = 12
        [pretty]
                fixes = Fixes: %h (\"%s\")