Re: [PATCH 1/1] gpio: vf610: make irq_chip immutable

From: andy . shevchenko
Date: Tue Feb 14 2023 - 05:52:22 EST


Tue, Feb 14, 2023 at 08:36:38AM +0100, Alexander Stein kirjoitti:
> Since recently, the kernel is nagging about mutable irq_chips:
>
> "not an immutable chip, please consider fixing it!"
>
> Drop the unneeded copy, flag it as IRQCHIP_IMMUTABLE, add the new
> helper functions and call the appropriate gpiolib functions.

...

> The overall changes are based on commit f1138dacb7ff
> ("gpio: sch: make irq_chip immutable")

Nice, but you forgot one crucial detail. You need to mark GPIO resuested
whenever it's locked as IRQ and otherwise when unlocked.

--
With Best Regards,
Andy Shevchenko