From: Michael Kelley <[email protected]> handle_percpu_devid_irq() is a version of handle_percpu_irq() but with the addition of a pointer to a per-cpu devid. However, handle_percpu_irq() does add_interrupt_randomness(), while handle_percpu_devid_irq() currently does not. Add the missing add_interrupt_randomness(), as it is needed when per-cpu interrupts with devid's are used in VMs for interrupts from the hypervisor.
Signed-off-by: Michael Kelley <[email protected]> --- kernel/irq/chip.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 6147a07d0127..6c9b1dc4e7d4 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -14,6 +14,7 @@ #include <linux/interrupt.h> #include <linux/kernel_stat.h> #include <linux/irqdomain.h> +#include <linux/random.h> #include <trace/events/irq.h> @@ -929,6 +930,8 @@ void handle_percpu_devid_irq(struct irq_desc *desc) enabled ? " and unmasked" : "", irq, cpu); } + add_interrupt_randomness(irq); + if (chip->irq_eoi) chip->irq_eoi(&desc->irq_data); } -- 2.25.1
