Re: [PATCH] MIPS: DEC: Remove IRQF_ONESHOT reference for IOASIC DMA error IRQs

[Thomas Bogendoerfer]

On Wed, May 06, 2026 at 12:15:21PM +0100, Maciej W. Rozycki wrote:
> There is no need for IOASIC DMA error interrupts to use the IRQF_ONESHOT 
> flag, because while they do need to have the source cleared only at the 
> conclusion of handling, the action handler supplied is either run in the 
> hardirq context with interrupts disabled at the CPU level or, where IRQ 
> threading has been forced, the primary handler has the IRQF_ONESHOT flag 
> implicitly added and therefore the original action handler, now run as 
> the thread handler and with interrupts enabled in the CPU, is executed 
> with the originating interrupt line masked.  Therefore no interrupt will 
> retrigger regardless until the original request has been handled.
> 
> Link: https://lore.kernel.org/r/20260127135334.qUEaYP9G@xxxxxxxxxxxxx/
> Reported-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
> Signed-off-by: Maciej W. Rozycki <macro@xxxxxxxxxxx>
> ---
>  arch/mips/dec/ioasic-irq.c |    5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)

applied to mips-next

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]