From 073352e951f60946452da358d64841066c3142ff Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Fri, 1 Jul 2022 15:00:54 -0500 Subject: genirq: Add and use an irq_data_update_affinity helper Some architectures and irqchip drivers modify the cpumask returned by irq_data_get_affinity_mask, usually by copying in to it. This is problematic for uniprocessor configurations, where the affinity mask should be constant, as it is known at compile time. Add and use a setter for the affinity mask, following the pattern of irq_data_update_effective_affinity. This allows the getter function to return a const cpumask pointer. Signed-off-by: Samuel Holland Reviewed-by: Oleksandr Tyshchenko # Xen bits Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220701200056.46555-7-samuel@sholland.org --- drivers/irqchip/irq-bcm6345-l1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/irqchip/irq-bcm6345-l1.c') diff --git a/drivers/irqchip/irq-bcm6345-l1.c b/drivers/irqchip/irq-bcm6345-l1.c index 142a7431745f..6899e37810a8 100644 --- a/drivers/irqchip/irq-bcm6345-l1.c +++ b/drivers/irqchip/irq-bcm6345-l1.c @@ -216,11 +216,11 @@ static int bcm6345_l1_set_affinity(struct irq_data *d, enabled = intc->cpus[old_cpu]->enable_cache[word] & mask; if (enabled) __bcm6345_l1_mask(d); - cpumask_copy(irq_data_get_affinity_mask(d), dest); + irq_data_update_affinity(d, dest); if (enabled) __bcm6345_l1_unmask(d); } else { - cpumask_copy(irq_data_get_affinity_mask(d), dest); + irq_data_update_affinity(d, dest); } raw_spin_unlock_irqrestore(&intc->lock, flags); -- cgit