linux-kernel - Re: [PATCH v3 1/3] alpha: Use OPTIMIZE

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Date:   Sun, 6 May 2018 12:33:21 -0700
From:   Matt Turner <mattst88@...il.com>
To:     James Hogan <jhogan@...nel.org>
Cc:     linux-mips@...ux-mips.org, Arnd Bergmann <arnd@...db.de>,
        Richard Henderson <rth@...ddle.net>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        linux-alpha <linux-alpha@...r.kernel.org>,
        linux-arch@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/3] alpha: Use OPTIMIZE_INLINING instead of asm/compiler.h

On Tue, Apr 17, 2018 at 3:11 AM, James Hogan <jhogan@...nel.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@...db.de>
> Signed-off-by: James Hogan <jhogan@...nel.org>
> Cc: Richard Henderson <rth@...ddle.net>
> Cc: Ivan Kokshaysky <ink@...assic.park.msu.ru>
> Cc: Matt Turner <mattst88@...il.com>
> Cc: linux-alpha@...r.kernel.org

Looks fine to me.

Acked-by: Matt Turner <mattst88@...il.com>

Should I take it through the alpha tree?