drm/radeon: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple fallthrough pseudo-keyword macros,
as replacement for /* fall through */ comments.

Notice that Clang doesn't recognize /* fall through */ comments as
implicit fall-through markings.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
index 0dfb0ed..f0cfb58 100644 (file)
--- a/drivers/gpu/drm/radeon/ci_dpm.c
+++ b/drivers/gpu/drm/radeon/ci_dpm.c
@@ -4839,8 +4839,8 @@ static void ci_request_link_speed_change_before_state_change(struct radeon_devic
                case RADEON_PCIE_GEN2:
                        if (radeon_acpi_pcie_performance_request(rdev, PCIE_PERF_REQ_PECI_GEN2, false) == 0)
                                break;
+                       fallthrough;
 #endif
-                       /* fall through */
                default:
                        pi->force_pcie_gen = ci_get_current_pcie_speed(rdev);
                        break;

diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 73f67bf..213dc49 100644 (file)
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1162,6 +1162,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
                /* valid register only on RV530 */
                if (p->rdev->family == CHIP_RV530)
                        break;
+               fallthrough;
                /* fallthrough do not move */
        default:
                goto fail;

diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index cd07b06..91bfc47 100644 (file)
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -5745,8 +5745,8 @@ static void si_request_link_speed_change_before_state_change(struct radeon_devic
                case RADEON_PCIE_GEN2:
                        if (radeon_acpi_pcie_performance_request(rdev, PCIE_PERF_REQ_PECI_GEN2, false) == 0)
                                break;
+                       fallthrough;
 #endif
-                       /* fall through */
                default:
                        si_pi->force_pcie_gen = si_get_current_pcie_speed(rdev);
                        break;