linux-kernel - Re: [PATCH v3 0/2] kbuild: Remove stale asm-generic wrappers

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Date:	Mon, 23 May 2016 17:55:02 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	James Hogan <james.hogan@...tec.com>
Cc:	linux-kernel@...r.kernel.org, x86@...nel.org,
	linux-arch@...r.kernel.org, linux-mips@...ux-mips.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Michal Marek <mmarek@...e.com>,
	Jonathan Corbet <corbet@....net>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Paul Burton <paul.burton@...tec.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Heinrich Schuchardt <xypron.glpk@....de>,
	linux-kbuild@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH v3 0/2] kbuild: Remove stale asm-generic wrappers

On Monday, May 23, 2016 9:21:19 AM CEST James Hogan wrote:
> This patchset attempts to fix kbuild to automatically remove stale
> asm-generic wrappers, i.e. when files are removed from generic-y and
> added directly into arch/*/include/uapi/asm/, but where the existing
> wrapper in arch/*/include/generated/asm/ continues to be used.
> 
> MIPS was recently burned by this in v4.3 (see patch 2), with continuing
> reports of build failures when people upgrade their trees, which go away
> after arch/mips/include/generated is removed (or reportedly make
> mrproper/distclean). It is particularly irritating during bisection.

Nice series!

Acked-by: Arnd Bergmann <arnd@...db.de>

There are a number of files that we leave behind after a make clean,
and I also wondered if we could remove some more of them, but I couldn't
easily figure out which of them were left intentionally.

The asm-generic wrappers certainly are not there for a good reason,
and it's good to see them gone.

	Arnd