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* [PATCH] irqchip/riscv-imsic: Fix boot time update effective affinity warning
@ 2024-04-13  6:52 Anup Patel
  0 siblings, 0 replies; only message in thread
From: Anup Patel @ 2024-04-13  6:52 UTC (permalink / raw)
  To: Thomas Gleixner
  Cc: Anup Patel, Anup Patel, Paul Walmsley, linux-kernel,
	Palmer Dabbelt, Atish Patra, linux-riscv, Andrew Jones

Currently, the following warning is observed on the QEMU virt machine:
genirq: irq_chip APLIC-MSI-d000000.aplic did not update eff. affinity mask of irq 12

The above warning is because the IMSIC driver does not set the initial
value of effective affinity in the irq descriptor. To address this,
initialize the effective affinity in imsic_irq_domain_alloc().

Fixes: 027e125acdba ("irqchip/riscv-imsic: Add device MSI domain support for platform devices")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
 drivers/irqchip/irq-riscv-imsic-platform.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-riscv-imsic-platform.c b/drivers/irqchip/irq-riscv-imsic-platform.c
index 1e6dddfd3046..11723a763c10 100644
--- a/drivers/irqchip/irq-riscv-imsic-platform.c
+++ b/drivers/irqchip/irq-riscv-imsic-platform.c
@@ -157,6 +157,7 @@ static int imsic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 			    handle_simple_irq, NULL, NULL);
 	irq_set_noprobe(virq);
 	irq_set_affinity(virq, cpu_online_mask);
+	irq_data_update_effective_affinity(irq_get_irq_data(virq), cpumask_of(vec->cpu));
 
 	return 0;
 }
-- 
2.34.1


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