diff options
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 5 | ||||
| -rw-r--r-- | arch/x86/kernel/irq.c | 3 | ||||
| -rw-r--r-- | kernel/rcu/tree_plugin.h | 1 |
3 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index ae97ed0873c6..3d525c6124f6 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -613,6 +613,11 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) { int rc, irq, trigger, polarity; + if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { + *irqp = gsi; + return 0; + } + rc = acpi_get_override_irq(gsi, &trigger, &polarity); if (rc == 0) { trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 705ef8d48e2d..67b1cbe0093a 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -302,6 +302,9 @@ int check_irq_vectors_for_cpu_disable(void) irq = __this_cpu_read(vector_irq[vector]); if (irq >= 0) { desc = irq_to_desc(irq); + if (!desc) + continue; + data = irq_desc_get_irq_data(desc); cpumask_copy(&affinity_new, data->affinity); cpu_clear(this_cpu, affinity_new); diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 0d7bbe3095ad..0a571e9a0f1d 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -326,6 +326,7 @@ void rcu_read_unlock_special(struct task_struct *t) special = t->rcu_read_unlock_special; if (special.b.need_qs) { rcu_preempt_qs(); + t->rcu_read_unlock_special.b.need_qs = false; if (!t->rcu_read_unlock_special.s) { local_irq_restore(flags); return; |