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Re: [PATCH v2 15/16] xen/riscv: implement setup_irq()
- To: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 15 May 2025 11:57:28 +0200
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- Cc: Alistair Francis <alistair.francis@xxxxxxx>, Bob Eshleman <bobbyeshleman@xxxxxxxxx>, Connor Davis <connojdavis@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Romain Caritey <Romain.Caritey@xxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 15 May 2025 09:57:36 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 06.05.2025 18:51, Oleksii Kurochko wrote:
> @@ -58,6 +59,89 @@ int platform_get_irq(const struct dt_device_node *device,
> int index)
> return dt_irq.irq;
> }
>
> +static int _setup_irq(struct irq_desc *desc, unsigned int irqflags,
> + struct irqaction *new)
> +{
> + bool shared = irqflags & IRQF_SHARED;
> +
> + ASSERT(new != NULL);
> +
> + /*
> + * Sanity checks:
> + * - if the IRQ is marked as shared
> + * - dev_id is not NULL when IRQF_SHARED is set
> + */
> + if ( desc->action != NULL && (!(desc->status & IRQF_SHARED) || !shared) )
> + return -EINVAL;
> + if ( shared && new->dev_id == NULL )
> + return -EINVAL;
> +
> + if ( shared )
> + desc->status |= IRQF_SHARED;
> +
> +#ifdef CONFIG_IRQ_HAS_MULTIPLE_ACTION
> + new->next = desc->action;
> +#endif
Didn't you indicate you'd drop this?
Jan
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