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From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Thu, 8 Jun 2017 10:46:28 +0900
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Subject: Re: [PATCH] clk: sunxi-ng: Move all clock types to a library
To: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Arnd Bergmann <arnd@arndb.de>, Chen-Yu Tsai <wens@csie.org>,
        kbuild test robot <lkp@intel.com>, Stephen Boyd <sboyd@codeaurora.org>,
        kbuild-all@01.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-clk <linux-clk@vger.kernel.org>,
        Michael Turquette <mturquette@baylibre.com>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>
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2017-06-07 17:17 GMT+09:00 Maxime Ripard <maxime.ripard@free-electrons.com>:
> On Wed, Jun 07, 2017 at 09:36:34AM +0200, Arnd Bergmann wrote:
>> On Wed, Jun 7, 2017 at 7:45 AM, Chen-Yu Tsai <wens@csie.org> wrote:
>> > at the bottom (with a comment) would be cleaner, and
>> > we wouldn't need to modify all the existing lines.
>> > AFAIK about Makefiles, that should work?
>>
>> Ah, yes. That's much better.
>>
>>       Arnd
>
> I just applied the original patch, with that addition, and a comment
> as suggested by Stephen.
>


Hmm, I think Kbuild expects lib.a only for the final link
(at least in official level)
Is it a problem to compile common files all the time?

# Common objects
obj-y += ccu_common.o
obj-y += ccu_reset.o


We may end up with some unused functions in vmlinux,
but it will not be a big impact on the image size in this case.

CONFIG_LD_DEAD_CODE_DATA_ELIMINATION may
take care of unused symbols.  I have not tested this CONFIG, though.



-- 
Best Regards
Masahiro Yamada