[PATCH 1/8] ath10k: don't consume other's shared interrupts

[Kalle Valo]

Michal Kazior <michal.kazior at tieto.com> writes:

> ath10k assumed all interrupts were directed to it.
> This isn't the case for legacy shared interrupts.
> ath10k consumed interrupts for other devices.
>
> Check device irq status and return IRQ_NONE when
> appropriate.
>
> Signed-off-by: Michal Kazior <michal.kazior at tieto.com>

[...]

> @@ -2085,6 +2103,9 @@ static irqreturn_t ath10k_pci_interrupt_handler(int irq, void *arg)
>  	struct ath10k *ar = arg;
>  	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
>  
> +	if (!ath10k_pci_irq_pending(ar))
> +		return IRQ_NONE;
> +
>  	if (ar_pci->num_msi_intrs == 0) {
>  		/*
>  		 * IMPORTANT: INTR_CLR regiser has to be set after

What if you move ath10k_pci_irq_pending() call after
ar_pci->num_msi_intrs == 0 check? That way you could remove the
"ar_pci->num_msi_intrs == 0" check from irq_pending() function.

-- 
Kalle Valo