Re: [PATCH] sh: Avoid using IRQ0 on SH3 and SH4

[John Paul Adrian Glaubitz]

Hi!

On Wed, 2023-07-12 at 08:38 -0700, Guenter Roeck wrote:
> > 
> >     Not only x86, IIRC.
> >     Have you seen the commit below?
> > 
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ce753ad1549cbe9ccaea4c06a1f5fa47432c8289
> > 
> 
> Quoting:
> 
> using IRQ0 is considered invalid (according to Linus) outside the arch/ code
>                                                        ^^^^^^^^^^^^^^^^^^^^^^
> 
> The changes here were made _in_ the arch code. While there may be valid
> arguments for doing that, quoting the above commit as reason isn't really
> sufficient.

Well, the changes we made inside arch/sh were necessary to achieve the desired
effects in the code in drivers such as the SM501 controller or the SH companion
chips.

Adrian

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