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From:   Matt Turner <mattst88@gmail.com>
Date:   Mon, 7 May 2018 09:03:58 -0700
Message-ID: <CAEdQ38FDSqRbikxZZ4uVmyT0JkV1uGOdtiEjwJafbDb9m4vDtw@mail.gmail.com>
Subject: Re: [PATCH v3 1/3] alpha: Use OPTIMIZE_INLINING instead of asm/compiler.h
To:     James Hogan <jhogan@kernel.org>
Cc:     linux-mips@linux-mips.org, Arnd Bergmann <arnd@arndb.de>,
        Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        linux-alpha <linux-alpha@vger.kernel.org>,
        linux-arch@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
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On Mon, May 7, 2018 at 1:42 AM, James Hogan <jhogan@kernel.org> wrote:
> On Sun, May 06, 2018 at 12:33:21PM -0700, Matt Turner wrote:
>> On Tue, Apr 17, 2018 at 3:11 AM, James Hogan <jhogan@kernel.org> wrote:
>> > Use CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING and CONFIG_OPTIMIZE_INLINING
>> > instead of undefining the inline macros in the alpha specific
>> > asm/compiler.h. This is to allow asm/compiler.h to become a general
>> > header that can be used for overriding linux/compiler*.h.
>> >
>> > A build of alpha's defconfig on GCC 7.3 before and after this series
>> > (i.e. this commit and "compiler.h: Allow arch-specific overrides" which
>> > includes asm/compiler.h from linux/compiler_types.h) results in the
>> > following size differences, which appear harmless to me:
>> >
>> > $ ./scripts/bloat-o-meter vmlinux.1 vmlinux.2
>> > add/remove: 1/1 grow/shrink: 3/0 up/down: 264/-348 (-84)
>> > Function                                     old     new   delta
>> > cap_bprm_set_creds                          1496    1664    +168
>> > cap_issubset                                   -      68     +68
>> > flex_array_put                               328     344     +16
>> > cap_capset                                   488     500     +12
>> > nonroot_raised_pE.constprop                  348       -    -348
>> > Total: Before=5823709, After=5823625, chg -0.00%
>> >
>> > Suggested-by: Arnd Bergmann <arnd@arndb.de>
>> > Signed-off-by: James Hogan <jhogan@kernel.org>
>> > Cc: Richard Henderson <rth@twiddle.net>
>> > Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
>> > Cc: Matt Turner <mattst88@gmail.com>
>> > Cc: linux-alpha@vger.kernel.org
>>
>> Looks fine to me.
>>
>> Acked-by: Matt Turner <mattst88@gmail.com>
>
> Thanks
>
>>
>> Should I take it through the alpha tree?
>
> I'll take all 3 through the MIPS tree if thats okay with you, as its a
> prerequisite to allowing MIPS to override stuff in linux/compiler-gcc.h
> using asm/compiler.h, which is needed to fix build breakage in 4.17.

Thanks. That works for me.