Received-SPF: pass (google.com: domain of linux-kernel+bounces-56020-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161;
Feedback-ID: i58a146ae:Fastmail
Date: Wed, 7 Feb 2024 17:31:08 +1100 (AEDT)
From: Finn Thain <fthain@linux-m68k.org>
To: Vincent MAILHOL <mailhol.vincent@wanadoo.fr>
cc: David Laight <David.Laight@aculab.com>, 
    Andrew Morton <akpm@linux-foundation.org>, 
    "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, 
    Yury Norov <yury.norov@gmail.com>, 
    Nick Desaulniers <ndesaulniers@google.com>, 
    Douglas Anderson <dianders@chromium.org>, 
    Kees Cook <keescook@chromium.org>, Petr Mladek <pmladek@suse.com>, 
    Randy Dunlap <rdunlap@infradead.org>, 
    Zhaoyang Huang <zhaoyang.huang@unisoc.com>, 
    Geert Uytterhoeven <geert+renesas@glider.be>, 
    Marco Elver <elver@google.com>, Brian Cain <bcain@quicinc.com>, 
    Geert Uytterhoeven <geert@linux-m68k.org>, 
    Matthew Wilcox <willy@infradead.org>, 
    "Paul E . McKenney" <paulmck@kernel.org>, 
    "linux-m68k@lists.linux-m68k.org" <linux-m68k@lists.linux-m68k.org>
Subject: Re: [PATCH v4 2/5] m68k/bitops: use __builtin_{clz,ctzl,ffs} to
 evaluate constant expressions
In-Reply-To: <CAMZ6RqLkCPuy+mQxp0HuVBgfSiFgFOwimYm1Ro7ESANyF-fRyg@mail.gmail.com>
Message-ID: <ca9bd701-1cd0-94b9-e8cb-4a4328dea58a@linux-m68k.org>
References: <20221111081316.30373-1-mailhol.vincent@wanadoo.fr> <20240128050449.1332798-1-mailhol.vincent@wanadoo.fr> <20240128050449.1332798-3-mailhol.vincent@wanadoo.fr> <c47fedaf-cdc9-f970-460f-d2ee7e806da4@linux-m68k.org>
 <CAMZ6RqKj207uv5AF_fvb65nhCM32V=VAQXsUGLNmbeXYKPvZJg@mail.gmail.com> <9d9be9dbe92f43d2a95d11d6b2f434c1@AcuMS.aculab.com> <CAMZ6Rq+RnY16sREhAZ6AFn3sz1SuPsKqhW-m0TrrDz1hd=vNOA@mail.gmail.com> <77831c6f-7fc9-c42d-b29b-c3b2f3f5e687@linux-m68k.org>
 <CAMZ6RqLyRxvUiLKZLkQF1cYFkdOqX73V2K=dGbNROMDj61OKLw@mail.gmail.com> <002675b0-6976-9efa-6bc5-b8bad287a1d2@linux-m68k.org> <CAMZ6RqKx=EO9kcOmxRyBuhULdDyTCeAXz25j_uF7TSy72Jahpw@mail.gmail.com> <00a7e866-23ff-fc63-b6df-364580f69c78@linux-m68k.org>
 <CAMZ6RqLkCPuy+mQxp0HuVBgfSiFgFOwimYm1Ro7ESANyF-fRyg@mail.gmail.com>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII


On Mon, 5 Feb 2024, Vincent MAILHOL wrote:

> On Mon. 5 Feb. 2024 at 18:48, Finn Thain <fthain@linux-m68k.org> wrote:
> > On Mon, 5 Feb 2024, Vincent MAILHOL wrote:
> >
> > If clang support is important then clang's builtins are important. So 
> > why not improve those instead? That would resolve the issue in a 
> > win-win.
> 
> I am deeply sorry, but with all your respect, this request is unfair. I 
> will not fix the compiler.
> 

Absolutely. It is unfair. Just as your proposal was unfair to maintainers. 
That patch would make a compiler deficiency into a maintenance burden.