From 65a5520a27570787b17e6f0b093829fc7e0514e2 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Tue, 15 Jul 2025 18:11:12 +0100 Subject: [PATCH] arm64: smp: Fix pNMI setup after GICv5 rework Breno reports that pNMIs are not behaving the way they should since they were reworked for GICv5. Turns out we feed the IRQ number to the pNMI helper instead of the IPI number -- not a good idea. Fix it by providing the correct number (duh). Fixes: ba1004f861d16 ("arm64: smp: Support non-SGIs for IPIs") Reported-by: Breno Leitao Suggested-by: Lorenzo Pieralisi Signed-off-by: Marc Zyngier --- arch/arm64/kernel/smp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 4797e2c70014f..a900835a3adfc 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -1093,7 +1093,7 @@ static void ipi_setup_sgi(int ipi) irq = ipi_irq_base + ipi; - if (ipi_should_be_nmi(irq)) { + if (ipi_should_be_nmi(ipi)) { err = request_percpu_nmi(irq, ipi_handler, "IPI", &irq_stat); WARN(err, "Could not request IRQ %d as NMI, err=%d\n", irq, err); } else { -- 2.47.2