linux-kernel - Re: [PATCH V7 2/2] csky: remove irq

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Date:   Tue, 25 Sep 2018 17:17:03 +0800
From:   Guo Ren <ren_guo@...ky.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh@...nel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        DTML <devicetree@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        c-sky_gcc_upstream@...ky.com, gnu-csky@...tor.com,
        Greentime Hu <green.hu@...il.com>
Subject: Re: [PATCH V7 2/2] csky: remove irq_mapping from smp.c.

On Mon, Sep 24, 2018 at 10:23:14PM +0200, Arnd Bergmann wrote:
> On Tue, Sep 18, 2018 at 3:48 PM Guo Ren <ren_guo@...ky.com> wrote:
> >
> >  - remove irq_mapping from smp.c to irq-driver
> >  - Add set_ipi_irq_mapping api to irq-driver
> >  - update asm/smp.h
> >
> > Signed-off-by: Guo Ren <ren_guo@...ky.com>
> 
> The patch seems ok to me, but please try to improve the changelog comments.
> Generally speaking, use full English sentences instead of an enumerated list,
> and explain what the change is for rather than what you are doing. The text
Ok, I'll improve it.
> you have here can easily be derived from looking at the code changes,
> but I still don't understand what caused you to change it, and why this
> is better than the previous version.
The changelog comment will change to:

There are some feedbacks from irqchip, and we need to adjust "smp.c & smp.h"
to match the csky_mptimer modification.
 - Move IPI_IRQ define into drivers/irqchip/csky_mpintc.c, because it's a
   interrupt controller specific.
 - Bugfix request_irq with IPI_IRQ, we must use irq_mapping return value not
   directly use IPI_IRQ. The modification also involves csky_mpintc.

Best Regards
 Guo Ren