linux-kernel - Re: [PATCH v2 0/3] Cleanup MAY_HAVE_SPARSE

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Date:   Wed, 29 Sep 2021 09:21:55 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>, Guo Ren <guoren@...nel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Linux-sh list <linux-sh@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-csky@...r.kernel.org
Subject: Re: [PATCH v2 0/3] Cleanup MAY_HAVE_SPARSE_IRQ

Hi Kefeng,

On Wed, Sep 29, 2021 at 4:35 AM Kefeng Wang <wangkefeng.wang@...wei.com> wrote:
> Most ARCHs support SPARSE_IRQ, the dynamical and statical irq
> description allocation are alternative.
>
> The last user of MAY_HAVE_SPARSE_IRQ is sh/csky, but the sh use
> SPARSE_IRQ, MAY_HAVE_SPARSE_IRQ could be kill. and for csky, it
> uses statical allocation by default.
>
> So MAY_HAVE_SPARSE_IRQ seems to be useless, no need to maintain a
> separate MAY_HAVE_SPARSE_IRQ config, kill it.
>
> Also cleanup the kernel/irq/Kconfig a little.
>
> v2:
> - drop all the NR_IRQS suggested by Geert
> - don' use SPARSE_IRQ for csky by default, suggested by Guo.
>
> Kefeng Wang (3):
>   sh: Cleanup about SPARSE_IRQ
>   csky: Kill MAY_HAVE_SPARSE_IRQ
>   genirq: Cleanup Kconfig

Thanks for the update!

Tested on SH on landisk (real) and rts7751r2d (qemu), so
Tested-by: Geert Uytterhoeven <geert+renesas@...der.be>

P.S. Please use the same version number in all patches of the series,
     to avoid confusing tools like b4.

https://lore.kernel.org/all/20210929023522.57732-1-wangkefeng.wang@huawei.com/
2021-09-29  2:35 ` [PATCH v1 1/3] sh: Cleanup about SPARSE_IRQ Kefeng Wang
2021-09-29  2:35 ` [PATCH v2 2/3] csky: Kill MAY_HAVE_SPARSE_IRQ Kefeng Wang
2021-09-29  2:35 ` [PATCH v3 3/3] genirq: Cleanup Kconfig Kefeng Wang
                          ^^

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds