linux-kernel - Re: [PATCH] kbuild: mark "FORCE" target as secondary

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Message-ID: <CAK7LNASYnPNsJraL1qv+MFviTnPxjmc2Dmd7EcvJRCNLtHfZ6Q@mail.gmail.com>
Date: Thu, 18 Jul 2024 01:45:02 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Arnd Bergmann <arnd@...db.de>
Cc: Arnd Bergmann <arnd@...nel.org>, Linus Torvalds <torvalds@...ux-foundation.org>, 
	linux-kbuild@...r.kernel.org, Nathan Chancellor <nathan@...nel.org>, 
	Nicolas Schier <nicolas@...sle.eu>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kbuild: mark "FORCE" target as secondary

On Thu, Jul 18, 2024 at 1:25 AM Arnd Bergmann <arnd@...db.de> wrote:
>
> On Wed, Jul 17, 2024, at 17:18, Masahiro Yamada wrote:
> >
> > Of course, NACK.
> >
> > Now I am surprised that this broken series was quickly merged
> > into the mainline.
> > I really dislike how you changed scripts/Makefile.asm-headers
> >
> >
> > I will send a correct fix.
> > Please do not break Kbuild even further.
>
> Should we maybe revert ff96f5c6971c..3db80c999deb then
> and find a better way to do it in 6.12?
>
>       Arnd
>
>

I do not think so.

I pretty much like 4fe53bf2ba0a45cd708dcd4c3e8e1950731b3d4d,
and I believe generating all syscall headers from a table
is the right thing to do.
So, it must happen.


Currently, the new syscall-y syntax can be used only for
architectures using the generic syscall table.
I wonder what we should do for the other legacy architectures.

Some years ago, I tried to unify 'archheaders' and 'asm-generic'
into a more generic rule, but I did not find a nice solution,
so I did not do anything. I need to find some way when I have time.




For the rebuild problem, I think this should work:
https://lore.kernel.org/all/20240717162421.1402773-1-masahiroy@kernel.org/T/#u

(I only compile-tested arch64 and riscv, but the other architectires
should be the same pattern.)



--
Best Regards
Masahiro Yamada