From: Sebastian Andrzej Siewior Date: Mon, 19 Sep 2022 12:46:16 +0000 (+0200) Subject: bcma: gpio: Use generic_handle_irq_safe() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=94ec234a16cf3acdb319f05917b1efec9642222e;p=linux.git bcma: gpio: Use generic_handle_irq_safe() On PREEMPT_RT enabled kernels the demultiplex interrupt handler is force threaded and runs with interrupts enabled. The invocation of generic_handle_irq() with interrupts enabled triggers a lockdep warning due to a non-irq safe lock acquisition. Instead of disabling interrupts on the driver level, use generic_handle_domain_irq_safe(). [ tglx: Split out from combo patch ] Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/YnkfWFzvusFFktSt@linutronix.de --- diff --git a/drivers/bcma/driver_gpio.c b/drivers/bcma/driver_gpio.c index fac8ff983aec8..65fb9bad1577a 100644 --- a/drivers/bcma/driver_gpio.c +++ b/drivers/bcma/driver_gpio.c @@ -115,7 +115,7 @@ static irqreturn_t bcma_gpio_irq_handler(int irq, void *dev_id) return IRQ_NONE; for_each_set_bit(gpio, &irqs, gc->ngpio) - generic_handle_irq(irq_find_mapping(gc->irq.domain, gpio)); + generic_handle_domain_irq_safe(gc->irq.domain, gpio); bcma_chipco_gpio_polarity(cc, irqs, val & irqs); return IRQ_HANDLED;