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From: Arnd Bergmann <arnd@arndb.de>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: Andrew Lunn <andrew@lunn.ch>,
	Nick Desaulniers <ndesaulniers@google.com>,
	netdev <netdev@vger.kernel.org>,
	David Miller <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Michal Marek <michal.lkml@markovi.net>,
	Rohit Maheshwari <rohitm@chelsio.com>,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
	clang-built-linux <clang-built-linux@googlegroups.com>
Subject: Re: [PATCH net-next v2 1/2] Makefile.extrawarn: Add symbol for W=1 warnings for today
Date: Mon, 12 Oct 2020 10:05:41 +0200	[thread overview]
Message-ID: <CAK8P3a3GP005UEwET=CUSw3aNdbCVoscCm2g0kpJYeKTv7NhjQ@mail.gmail.com> (raw)
In-Reply-To: <CAK7LNARRchbhDNUT3paTVpOJYKR-D_+HLzjG-wsOOM+LO5p3sA@mail.gmail.com>

On Mon, Oct 12, 2020 at 3:00 AM Masahiro Yamada <masahiroy@kernel.org> wrote:
>
> BTW, if possible, please educate me about the difference
> between -Wmissing-declarations and -Wmissing-prototypes.
>
...
> Do we need to specify both in W=1 ?
> If yes, what is the difference between them?

I think they do the same thing in the kernel, as we already set
 '-Wstrict-prototypes', which requires that there are no declarations
without having a prototype first. Adding either one should be sufficient.

      Arnd

  reply	other threads:[~2020-10-12  8:06 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-01  1:12 [RFC PATCH net-next v2 0/2] driver/net/ethernet W=1 by default Andrew Lunn
2020-10-01  1:12 ` [PATCH net-next v2 1/2] Makefile.extrawarn: Add symbol for W=1 warnings for today Andrew Lunn
2020-10-01 23:09   ` Nick Desaulniers
2020-10-02  1:44     ` Andrew Lunn
2020-10-02 12:20       ` Arnd Bergmann
2020-10-02 12:51         ` Andrew Lunn
2020-10-02 13:15           ` Arnd Bergmann
2020-10-12  1:00         ` Masahiro Yamada
2020-10-12  8:05           ` Arnd Bergmann [this message]
2020-10-05 17:31       ` Nick Desaulniers
2020-10-05 19:49         ` Andrew Lunn
2020-10-05 20:03           ` Arnd Bergmann
2020-10-05 21:08             ` Andrew Lunn
2020-10-11 13:03               ` Masahiro Yamada
2020-10-12  8:11                 ` Arnd Bergmann
2020-10-16 14:12                 ` Andrew Lunn
     [not found]                   ` <CAK8P3a1nBhmf1PQwHHbEjiVgRTXi4UuJAbwuK92CKEbR=yKGWw@mail.gmail.com>
2020-10-17 14:57                     ` Andrew Lunn
2020-10-02  9:04   ` kernel test robot
2020-10-02  9:04     ` kernel test robot
2020-10-02 11:08   ` kernel test robot
2020-10-02 11:08     ` kernel test robot
2020-10-01  1:12 ` [PATCH net-next v2 2/2] driver/net/ethernet: Sign up for W=1 as defined on 20200930 Andrew Lunn

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