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Subject: Re: [PATCH v4] sh: avoid using IRQ0 on SH3/4
From:   Sergey Shtylyov <s.shtylyov@omp.ru>
To:     Rich Felker <dalias@libc.org>, <linux-sh@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
CC:     Yoshinori Sato <ysato@users.sourceforge.jp>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
References: <b2bccbca-6acf-7129-0099-7ad21bf13430@omp.ru>
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Message-ID: <961f3b42-1522-79d5-7012-1533b568696f@omp.ru>
Date:   Fri, 13 Jan 2023 21:21:36 +0300
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Hello!

On 5/3/22 11:42 PM, Sergey Shtylyov wrote:

> Using IRQ0 by the platform devices is going to be disallowed soon (see [1])
> and even now, when IRQ0 is about to be returned by platfrom_get_irq(), you
> see a big warning.  The code supporting SH3/4 SoCs maps the IRQ #s starting
> at 0 -- modify that code to start the IRQ #s from 16 instead.
> 
> The patch should mostly affect the AP-SH4A-3A/AP-SH4AD-0A boards as they
> indeed use IRQ0 for the SMSC911x compatible Ethernet chip...
> 
> [1] https://lore.kernel.org/all/025679e1-1f0a-ae4b-4369-01164f691511@omp.ru/
> 
> Fixes: a85a6c86c25b ("driver core: platform: Clarify that IRQ 0 is invalid")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
> 
> ---
> The patch is against Linus Torvalds' 'linux.git' repo.

   So, this patch hasn't been merged... may I ask why? :-(

MBR, Sergey