ACPI: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 86c10599d9f8..449d86d39965 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -82,6 +82,7 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
                  * PIIX4 models.
                  */
                 errata.piix4.throttle = 1;
+                /* fall through*/
 
         case 2:         /* PIIX4E */
         case 3:         /* PIIX4M */