ACPI: Use fallthrough pseudo-keyword

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 69d2db1..2dfa08f 100644 (file)
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -236,7 +236,7 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
        default:
                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                  "Unsupported event [0x%x]\n", event));
-       /* fall through */
+               fallthrough;
        case ACPI_AC_NOTIFY_STATUS:
        case ACPI_NOTIFY_BUS_CHECK:
        case ACPI_NOTIFY_DEVICE_CHECK:

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 5379bc3..b51ddf3 100644 (file)
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -79,7 +79,7 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
                 * PIIX4 models.
                 */
                errata.piix4.throttle = 1;
-               /* fall through*/
+               fallthrough;
 
        case 2:         /* PIIX4E */
        case 3:         /* PIIX4M */

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 3c35e57..a4eda7f 100644 (file)
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -405,7 +405,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
        switch (event) {
        case ACPI_FIXED_HARDWARE_EVENT:
                event = ACPI_BUTTON_NOTIFY_STATUS;
-               /* fall through */
+               fallthrough;
        case ACPI_BUTTON_NOTIFY_STATUS:
                input = button->input;
                if (button->type == ACPI_BUTTON_TYPE_LID) {

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index e341413..9bd72c2 100644 (file)
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -469,7 +469,7 @@ int dock_notify(struct acpi_device *adev, u32 event)
                surprise_removal = 1;
                event = ACPI_NOTIFY_EJECT_REQUEST;
                /* Fall back */
-               /* fall through */
+               fallthrough;
        case ACPI_NOTIFY_EJECT_REQUEST:
                begin_undock(ds);
                if ((immediate_undock && !(ds->flags & DOCK_IS_ATA))

diff --git a/drivers/acpi/evged.c b/drivers/acpi/evged.c
index ccd9006..b1a7f8d 100644 (file)
--- a/drivers/acpi/evged.c
+++ b/drivers/acpi/evged.c
@@ -106,7 +106,7 @@ static acpi_status acpi_ged_request_interrupt(struct acpi_resource *ares,
 
                if (ACPI_SUCCESS(acpi_get_handle(handle, ev_name, &evt_handle)))
                        break;
-               /* fall through */
+               fallthrough;
        default:
                if (ACPI_SUCCESS(acpi_get_handle(handle, "_EVT", &evt_handle)))
                        break;

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 75534c5..9325fea 100644 (file)
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -203,8 +203,7 @@ static void tsc_check_state(int state)
                 */
                if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
                        return;
-
-               /*FALL THROUGH*/
+               fallthrough;
        default:
                /* TSC could halt in idle, so notify users */
                if (state > ACPI_STATE_C1)

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 3b44489..ad04824 100644 (file)
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -373,7 +373,7 @@ unsigned int acpi_dev_get_irq_type(int triggering, int polarity)
        case ACPI_ACTIVE_BOTH:
                if (triggering == ACPI_EDGE_SENSITIVE)
                        return IRQ_TYPE_EDGE_BOTH;
-               /* fall through */
+               fallthrough;
        default:
                return IRQ_TYPE_NONE;
        }

diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c
index d73b453..88460ba 100644 (file)
--- a/drivers/acpi/spcr.c
+++ b/drivers/acpi/spcr.c
@@ -111,7 +111,7 @@ int __init acpi_parse_spcr(bool enable_earlycon, bool enable_console)
                        table->serial_port.access_width))) {
                default:
                        pr_err("Unexpected SPCR Access Width.  Defaulting to byte size\n");
-                       /* fall through */
+                       fallthrough;
                case 8:
                        iotype = "mmio";
                        break;
@@ -128,7 +128,7 @@ int __init acpi_parse_spcr(bool enable_earlycon, bool enable_console)
        switch (table->interface_type) {
        case ACPI_DBG2_ARM_SBSA_32BIT:
                iotype = "mmio32";
-               /* fall through */
+               fallthrough;
        case ACPI_DBG2_ARM_PL011:
        case ACPI_DBG2_ARM_SBSA_GENERIC:
        case ACPI_DBG2_BCM2835:

diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 7224b1e..0d85025 100644 (file)
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -527,8 +527,8 @@ static void program_hpx_type3_register(struct pci_dev *dev,
                        return;
 
                break;
-       case HPX_CFG_VEND_CAP:  /* Fall through */
-       case HPX_CFG_DVSEC:     /* Fall through */
+       case HPX_CFG_VEND_CAP:
+       case HPX_CFG_DVSEC:
        default:
                pci_warn(dev, "Encountered _HPX type 3 with unsupported config space location");
                return;
@@ -1001,7 +1001,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
                        error = -EBUSY;
                        break;
                }
-               /* Fall through */
+               fallthrough;
        case PCI_D0:
        case PCI_D1:
        case PCI_D2: