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genirq/chip: Invoke add_interrupt_randomness() in handle_percpu_devid_irq()

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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() invokes 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 <mhklinux@outlook.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260402202400.1707-2-mhklkml@zohomail.com
This commit is contained in:
Michael Kelley
2026-04-02 13:23:59 -07:00
committed by Thomas Gleixner
parent 34d85ad426
commit fd7400cfcb
1 changed files with 3 additions and 0 deletions
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3
kernel/irq/chip.c
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@@ -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);
}