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From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 21 Jun 2017 12:51:20 +0200
Message-ID: <CAK8P3a2MB37oqB2PerOtnjhp-NW+oKMsE1Vm7M4=zrJEL9nM9w@mail.gmail.com>
Subject: Re: [PATCH 1/5] kbuild: thin archives final link close
 --whole-archives option
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To: Nicholas Piggin <npiggin@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>, Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>, linux-arch <linux-arch@vger.kernel.org>, Michal Marek <mmarek@suse.com>, Linus Torvalds <torvalds@linux-foundation.org>, Stephen Rothwell <sfr@canb.auug.org.au>, kbuild test robot <fengguang.wu@intel.com>, Josh Triplett <josh@joshtriplett.org>, Nicolas Pitre <nicolas.pitre@linaro.org>

On Wed, Jun 21, 2017 at 12:49 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Wed, Jun 21, 2017 at 12:38 PM, Nicholas Piggin <npiggin@gmail.com> wrote:
>> On Wed, 21 Jun 2017 12:21:16 +0200
>> Arnd Bergmann <arnd@arndb.de> wrote:

>>> so we are fine as long as we enable THIN_ARCHIVES
>>> and LD_DEAD_CODE_DATA_ELIMINATION at the same time
>>> on ARM.
>>
>> Well the current proposal is to unconditionally enable it for all archs
>> for 4.13. After that I'll submit patches to x86 and powerpc arch
>> maintainers to allow LD_DEAD_CODE_DATA_ELIMINATION as an option. I guess
>> you will do ARM and there have been MIPS guys looking at it too.
>>
>> That leaves a window of one release. ARM could unselect thin archives if
>> necessary but I think it would be much better to enable it and flush out
>> any toolchain and build issues before doing the LD_DCDE option. Disabling
>> should be a last resort if we can't fix something in time for release.
>
> I see.

[hit 'send' too early]

We can always revert 06e226c7fb23 ("clk: sunxi-ng: Move all clock types to a
library"), it's also scheduled for 4.13 and has not been in a release yet.

       Arnd