Received-SPF: pass (google.com: domain of linux-kernel+bounces-22781-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1;
Feedback-ID: i56a14606:Fastmail
User-Agent: Cyrus-JMAP/3.9.0-alpha0-1374-gc37f3abe3d-fm-20240102.001-gc37f3abe
Precedence: bulk
MIME-Version: 1.0
Message-Id: <7a79c037-ac91-448a-b6e0-b38cacccd971@app.fastmail.com>
In-Reply-To: <ab94f844-a4ec-4b4f-b67b-2b67347596d9@roeck-us.net>
References: <20231123110506.707903-1-arnd@kernel.org>
 <20231123110506.707903-7-arnd@kernel.org>
 <ab94f844-a4ec-4b4f-b67b-2b67347596d9@roeck-us.net>
Date: Wed, 10 Jan 2024 21:43:40 +0100
From: "Arnd Bergmann" <arnd@arndb.de>
To: "Guenter Roeck" <linux@roeck-us.net>, "Arnd Bergmann" <arnd@kernel.org>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
 "David S . Miller" <davem@davemloft.net>,
 "David Woodhouse" <dwmw2@infradead.org>,
 "Dinh Nguyen" <dinguyen@kernel.org>,
 "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
 "Ivan Kokshaysky" <ink@jurassic.park.msu.ru>,
 "John Paul Adrian Glaubitz" <glaubitz@physik.fu-berlin.de>,
 "Michael Ellerman" <mpe@ellerman.id.au>,
 "Masahiro Yamada" <masahiroy@kernel.org>,
 "Matt Turner" <mattst88@gmail.com>,
 "Nathan Chancellor" <nathan@kernel.org>,
 "Nicolas Schier" <nicolas@fjasle.eu>,
 "Peter Zijlstra" <peterz@infradead.org>, "Rich Felker" <dalias@libc.org>,
 "Richard Henderson" <richard.henderson@linaro.org>,
 "Richard Weinberger" <richard@nod.at>,
 "Stephen Rothwell" <sfr@canb.auug.org.au>,
 "Thomas Bogendoerfer" <tsbogend@alpha.franken.de>,
 "Tudor Ambarus" <tudor.ambarus@linaro.org>,
 "Yoshinori Sato" <ysato@users.sourceforge.jp>,
 Linux-Arch <linux-arch@vger.kernel.org>, linux-alpha@vger.kernel.org,
 linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
 linux-mips@vger.kernel.org, linux-mtd@lists.infradead.org,
 linux-sh@vger.kernel.org, linux-usb@vger.kernel.org,
 sparclinux@vger.kernel.org, x86@kernel.org,
 "Kees Cook" <keescook@chromium.org>,
 "Palmer Dabbelt" <palmer@rivosinc.com>
Subject: Re: [PATCH v3 6/6] Makefile.extrawarn: turn on missing-prototypes globally
Content-Type: text/plain

On Wed, Jan 10, 2024, at 20:45, Guenter Roeck wrote:
> On Thu, Nov 23, 2023 at 12:05:06PM +0100, Arnd Bergmann wrote:
>> At this point, there are five architectures with a number of known
>> regressions: alpha, nios2, mips, sh and sparc. In the previous version
>> of this patch, I had turned off the missing prototype warnings for the 15
>> architectures that still had issues, but since there are only five left,
>> I think we can leave the rest to the maintainers (Cc'd here) as well.
>> 
>
> Not sure I understand why this was so important that it warrants the
> resulting buildtest failures.
>
> FWIW, I'll disable WERROR in my build tests for the affected architectures.
> That is kind of counter-productive, but the only real alternative would be
> to stop build (and sometimes, such as for ppc, runtime) tests entirely,
> which would be even worse.

If you prefer, I can go back to the older version and just disable
the warning for the architectures with defconfig build failures. I did
a lot of fixes for mips, so at least defconfig and allmodconfig
should be fine now, leaving only alpha, nios2, sh and sparc as
far as I can tell, at least once Linus merges the asm-generic
pull request hat has a bunch of the currently missing fixes.

   Arnd