diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2021-04-08 16:19:52 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2021-04-08 16:19:52 +0200 |
| commit | bbca17c0ada71c652df497bdad7ec9edeacac844 (patch) | |
| tree | 3e6a1b87d4a14ddd89a9fa342e571b38f9a00cef /kernel/irq/manage.c | |
| parent | 7a47f86bba748b31cd16e3acbf9fb8b1f4a49c6d (diff) | |
| parent | cbe16f35bee6880becca6f20d2ebf6b457148552 (diff) | |
Merge tag 'irq-no-autoen-2021-03-25' into review-hans
Tag for the input subsystem to pick up
Diffstat (limited to 'kernel/irq/manage.c')
| -rw-r--r-- | kernel/irq/manage.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index dec3f73e8db9..97c231a5644c 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -1693,7 +1693,8 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) irqd_set(&desc->irq_data, IRQD_NO_BALANCING); } - if (irq_settings_can_autoenable(desc)) { + if (!(new->flags & IRQF_NO_AUTOEN) && + irq_settings_can_autoenable(desc)) { irq_startup(desc, IRQ_RESEND, IRQ_START_COND); } else { /* @@ -2086,10 +2087,15 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler, * which interrupt is which (messes up the interrupt freeing * logic etc). * + * Also shared interrupts do not go well with disabling auto enable. + * The sharing interrupt might request it while it's still disabled + * and then wait for interrupts forever. + * * Also IRQF_COND_SUSPEND only makes sense for shared interrupts and * it cannot be set along with IRQF_NO_SUSPEND. */ if (((irqflags & IRQF_SHARED) && !dev_id) || + ((irqflags & IRQF_SHARED) && (irqflags & IRQF_NO_AUTOEN)) || (!(irqflags & IRQF_SHARED) && (irqflags & IRQF_COND_SUSPEND)) || ((irqflags & IRQF_NO_SUSPEND) && (irqflags & IRQF_COND_SUSPEND))) return -EINVAL; @@ -2245,7 +2251,8 @@ int request_nmi(unsigned int irq, irq_handler_t handler, desc = irq_to_desc(irq); - if (!desc || irq_settings_can_autoenable(desc) || + if (!desc || (irq_settings_can_autoenable(desc) && + !(irqflags & IRQF_NO_AUTOEN)) || !irq_settings_can_request(desc) || WARN_ON(irq_settings_is_per_cpu_devid(desc)) || !irq_supports_nmi(desc)) |