linux-kernel - Re: [PATCH] ARM: uniphier: drop code for old DT binding

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Message-ID: <4992506.m4GEHIOqdc@wuerfel>
Date:	Tue, 31 May 2016 11:21:37 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Masahiro Yamada <yamada.masahiro@...ionext.com>, arm@...nel.org,
	Russell King <linux@...linux.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: uniphier: drop code for old DT binding

On Tuesday, May 31, 2016 5:17:08 PM CEST Masahiro Yamada wrote:
> Commit 307d40c56b0c ("ARM: uniphier: rework SMP code to support new
> System Bus binding") added a new DT binding for SMP code, but still
> kept old code for the backward compatibility.
> 
> Linux 4.6 was out with both bindings supported, so it should not
> hurt to drop the old code now.
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> 

That explanation is in general not sufficient. Are you sure that
nobody is shipping a machine with their own dts file that is not
merged upstream, and that there are no bootloaders that have a
hardcoded dtb file that we need to support indefinitely?

	Arnd