Commit-ID: 6ef6386ef7c15bea21afce06f951c87de7e2a562 Gitweb: https://git.kernel.org/tip/6ef6386ef7c15bea21afce06f951c87de7e2a562 Author: Marc Zyngier <marc.zyngier@xxxxxxx> AuthorDate: Fri, 16 Mar 2018 14:35:17 +0000 Committer: Marc Zyngier <marc.zyngier@xxxxxxx> CommitDate: Fri, 16 Mar 2018 14:38:13 +0000 irqchip/gic-v3: Loudly complain about the use of IRQ_TYPE_NONE There is a huge number of broken device trees out there. Just grepping through the tree for the use of IRQ_TYPE_NONE in conjunction with the GIC is scary. People just don't realise that IRQ_TYPE_NONE just doesn't exist, and you just get whatever junk was there before. So let's make them aware of the issue. Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx> --- drivers/irqchip/irq-gic-v3.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index 3e9eeb6cb294..5bb7bb22f1c1 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -916,6 +916,9 @@ static int gic_irq_domain_translate(struct irq_domain *d, } *type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK; + + /* Make it clear that broken DTs are... broken */ + WARN_ON(*type == IRQ_TYPE_NONE); return 0; } @@ -925,6 +928,8 @@ static int gic_irq_domain_translate(struct irq_domain *d, *hwirq = fwspec->param[0]; *type = fwspec->param[1]; + + WARN_ON(*type == IRQ_TYPE_NONE); return 0; } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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