Re: [PATCH] ASoC: meson: axg-fifo: fix irq scheduling issue with PREEMPT_RT

From: Sebastian Andrzej Siewior
Date: Tue Aug 13 2024 - 11:22:56 EST


On 2024-08-13 15:43:54 [+0100], Mark Brown wrote:
> On Tue, 06 Aug 2024 12:27:03 +0200, Jerome Brunet wrote:
> > With PREEMPT_RT enabled, spinlocks become preemptible.
> > This is usually not a problem with spinlocks used in IRQ context since
> > IRQ handlers get threaded. However, if IRQF_ONESHOT is set, the upper half
> > of a threaded irq handler won't be threaded and this causes scheduling
> > problems if spinlocks are used in the upper half, like with regmap when
> > '.fast_io' is set.
> >
> > [...]
>
> Applied to
>
> https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
>
> Thanks!
>
> [1/1] ASoC: meson: axg-fifo: fix irq scheduling issue with PREEMPT_RT
> commit: 5003d0ce5c7da3a02c0aff771f516f99731e7390

Didn't you already apply v2 of this?

Sebastian