linux-kernel - Re: [PATCH v6 01/11] ARM: sunxi: smp: Move assembly code into a file

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Message-ID: <20180417111737.6dous6eiuvjn33jf@flea>
Date:   Tue, 17 Apr 2018 13:17:37 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Mylène Josserand <mylene.josserand@...tlin.com>,
        Russell King <linux@...linux.org.uk>,
        Marc Zyngier <marc.zyngier@....com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>, Simon <horms@...ge.net.au>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Magnus Damm <magnus.damm@...il.com>,
        "open list:ARM/SHMOBILE ARM..." <linux-renesas-soc@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        LABBE Corentin <clabbe.montjoie@...il.com>,
        Quentin Schulz <quentin.schulz@...tlin.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 01/11] ARM: sunxi: smp: Move assembly code into a file

On Tue, Apr 17, 2018 at 11:12:41AM +0800, Chen-Yu Tsai wrote:
> On Tue, Apr 17, 2018 at 5:50 AM, Mylène Josserand
> <mylene.josserand@...tlin.com> wrote:
> > Move the assembly code for cluster cache enabling and resuming
> > into an assembly file instead of having it directly in C code.
> >
> > Remove the CFLAGS because we are using the ARM directive "arch"
> > instead.
> >
> > Signed-off-by: Mylène Josserand <mylene.josserand@...tlin.com>
> > ---
> >  arch/arm/mach-sunxi/Makefile  |  4 +--
> >  arch/arm/mach-sunxi/headsmp.S | 80 +++++++++++++++++++++++++++++++++++++++++
> >  arch/arm/mach-sunxi/mc_smp.c  | 82 +++----------------------------------------
> >  3 files changed, 85 insertions(+), 81 deletions(-)
> >  create mode 100644 arch/arm/mach-sunxi/headsmp.S
> 
> I'm still not convinced about this whole "move ASM to separate
> file" thing, especially now that you aren't actually adding any
> sunxi-specific ASM code beyond a simple function call.
> 
> Could you drop this for now?

I'd really like to have this merged actually. There's a significant
readibility improvement, so even if there's no particular functional
improvement, I'd still call it a win.

Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

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