On Thu, Jun 18 2026 at 22:27, Thomas Gleixner wrote:
> On Thu, Jun 18 2026 at 11:11, Jing Wu wrote:
>> + */
>> + if (irqd_affinity_is_managed(&desc->irq_data)) {
>
> So you set the affinity even on an interrupt which is shutdown?
>
>> + const struct cpumask *mask;
>> + struct cpumask *tmp = this_cpu_ptr(&__tmp_mask);
How is this correct? You cannot get the per cpu pointer in preemptible
context. The task might be migrated and then fiddle with the wrong
per CPU data. But that's moot as this code is broken anyway.
