ACPI: create /sys/firmware/acpi/interrupts

See Documentation/ABI/testing/sysfs-firmware-acpi

Based-on-original-patch-by: Luming Yu <luming.yu@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index e53fb516f9d4..1087efeca9b1 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -332,7 +332,15 @@ acpi_os_table_override(struct acpi_table_header * existing_table,
 
 static irqreturn_t acpi_irq(int irq, void *dev_id)
 {
-        return (*acpi_irq_handler) (acpi_irq_context) ? IRQ_HANDLED : IRQ_NONE;
+        u32 handled;
+
+        handled = (*acpi_irq_handler) (acpi_irq_context);
+
+        if (handled) {
+                acpi_irq_handled++;
+                return IRQ_HANDLED;
+        } else
+                return IRQ_NONE;
 }
 
 acpi_status
@@ -341,6 +349,8 @@ acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler,
 {
         unsigned int irq;
 
+        acpi_irq_stats_init();
+
         /*
          * Ignore the GSI from the core, and use the value in our copy of the
          * FADT. It may not be the same if an interrupt source override exists