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| author |   Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2022-09-19 14:42:54 +0200 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2022-09-19 15:08:38 +0200 |
| commit | f460c70125bcb1b753f152d9d0c9cee3ddbc2d91 (patch) | |
| tree | ba4a0971d5d816f0935a375a99616d1093634116 /drivers/pinctrl/pinctrl-amd.c | |
| parent | genirq: Provide generic_handle_domain_irq_safe(). (diff) | |
| download | linux-dev-f460c70125bcb1b753f152d9d0c9cee3ddbc2d91.tar.xz linux-dev-f460c70125bcb1b753f152d9d0c9cee3ddbc2d91.zip | |
pinctrl: amd: 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_domain_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 <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/YnkfWFzvusFFktSt@linutronix.de
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215954
Diffstat (limited to 'drivers/pinctrl/pinctrl-amd.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-amd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index 4691a33bc374..4ed2b4ba9568 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -639,7 +639,7 @@ static bool do_amd_gpio_irq_handler(int irq, void *dev_id) if (!(regval & PIN_IRQ_PENDING) || !(regval & BIT(INTERRUPT_MASK_OFF))) continue; - generic_handle_domain_irq(gc->irq.domain, irqnr + i); + generic_handle_domain_irq_safe(gc->irq.domain, irqnr + i); /* Clear interrupt. * We must read the pin register again, in case the |