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

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Message-ID: <4e8f6872-28f8-9651-c6a7-0643e6069ce2@huawei.com>
Date:   Wed, 29 Sep 2021 16:12:04 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
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



On 2021/9/29 15:21, Geert Uytterhoeven wrote:
> 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>

Thanks for your test.
> 
> 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
>                            ^^
> 
Strange, maybe some unexpected change in my local dir... sorry for the 
confusing.

> Gr{oetje,eeting}s,
> 
>                          Geert
>