From acf8828acb4aedd612148f27c75a0d5de4497c4c Mon Sep 17 00:00:00 2001 From: Sumit Gupta Date: Mon, 14 Oct 2019 18:27:33 +0530 Subject: [PATCH 354/354] irq: tegra: add IRQF_NO_THREAD flag for doorbell X-NVConfidentiality: public Doorbell irq's are used for communication with BPMP. Adding IRQF_NO_THREAD flag in request_irq() for doorbell interrupts to prevent converting irq hanlder to thread. Converting to thread was causing crash as kthread is not available during early kernel init. Bug 200511477 Change-Id: Id927221ce9dd601ef5127f886f07eb34dfc27763 Signed-off-by: Sumit Gupta --- drivers/irqchip/irq-tegra.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-tegra.c b/drivers/irqchip/irq-tegra.c index 2311084..0e5f4fa 100644 --- a/drivers/irqchip/irq-tegra.c +++ b/drivers/irqchip/irq-tegra.c @@ -515,8 +515,8 @@ static int __init tegra_ictlr_init(struct device_node *node, break; doorbells[idx].hwirq = irq_to_desc(irq)->irq_data.hwirq - 32; - err = request_irq(doorbells[idx].irq, doorbell_handler, 0, - "doorbell", &doorbells[idx]); + err = request_irq(doorbells[idx].irq, doorbell_handler, + IRQF_NO_THREAD, "doorbell", &doorbells[idx]); if (err < 0) { pr_err("doorbell %d irq %d request failure\n", idx, irq); -- 2.7.4