Re: [PATCH 7/7] xen/events: remove some info_for_irq() calls in pirq handling

[Juergen Gross]

On 14.11.23 19:16, Oleksandr Tyshchenko wrote:
> On 16.10.23 09:28, Juergen Gross wrote:
>
> Hello Juergen
>
>
> > Instead of the IRQ number user the struct irq_info pointer as parameter
> > in the internal pirq related functions. This allows to drop some calls
> > of info_for_irq().
> >
> > Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
>
>
> Looks good, so
>
> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
>
>
> Just one NIT below ...
>
>
> [snip]
>
> >    
> > -static void pirq_query_unmask(int irq)
> > +static void pirq_query_unmask(struct irq_info *info)
> >    {
> >    	struct physdev_irq_status_query irq_status;
> > -	struct irq_info *info = info_for_irq(irq);
> >    
> >    	BUG_ON(info->type != IRQT_PIRQ);
> >    
> > -	irq_status.irq = pirq_from_irq(irq);
> > +	irq_status.irq = info->u.pirq.pirq;
>
>
>    ... what is the reason to open-code pirq_from_irq() here?
> For example, __startup_pirq() continues to use helper in almost the same
> situation ...

Good catch. I'll change that, especially as it allows to remove the BUG_ON()
which is in the helper already.


Juergen

Attachment: OpenPGP_0xB0DE9DD628BF132F.asc
Description: OpenPGP public key

Attachment: OpenPGP_signature.asc
Description: OpenPGP digital signature