On 7/23/23 05:31, Srinivasan Shanmugam wrote:
Expressions under 'else' branch in function 'dm_vblank_get_counter' & 'amdgpu_dm_backlight_get_level' are executed whenever the expression in 'if' is False. Otherwise, return from case occurs. Therefore, there is no need in 'else', and it has been removed. Fixes the following: WARNING: else is not generally useful after a break or return + return 0; + else { WARNING: else is not generally useful after a break or return + return convert_brightness_to_user(&caps, avg); + } else { Cc: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx> Cc: Aurabindo Pillai <aurabindo.pillai@xxxxxxx> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@xxxxxxx> --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 31 ++++++++++--------- 1 file changed, 17 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 1e1a38014475..77d970a2ee69 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -245,19 +245,20 @@ is_timing_unchanged_for_freesync(struct drm_crtc_state *old_crtc_state, */ static u32 dm_vblank_get_counter(struct amdgpu_device *adev, int crtc) { + struct amdgpu_crtc *acrtc = NULL; + if (crtc >= adev->mode_info.num_crtc) return 0; - else { - struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc];- if (acrtc->dm_irq_params.stream == NULL) {- DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n", - crtc); - return 0; - } + acrtc = adev->mode_info.crtcs[crtc];- return dc_stream_get_vblank_counter(acrtc->dm_irq_params.stream);+ if (!acrtc->dm_irq_params.stream) { + DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n", + crtc); + return 0; } + + return dc_stream_get_vblank_counter(acrtc->dm_irq_params.stream); }static int dm_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,@@ -4091,6 +4092,7 @@ static int amdgpu_dm_backlight_update_status(struct backlight_device *bd) static u32 amdgpu_dm_backlight_get_level(struct amdgpu_display_manager *dm, int bl_idx) { + int ret; struct amdgpu_dm_backlight_caps caps; struct dc_link *link = (struct dc_link *)dm->backlight_link[bl_idx];@@ -4105,13 +4107,14 @@ static u32 amdgpu_dm_backlight_get_level(struct amdgpu_display_manager *dm,if (!rc) return dm->brightness[bl_idx]; return convert_brightness_to_user(&caps, avg); - } else { - int ret = dc_link_get_backlight_level(link); - - if (ret == DC_ERROR_UNEXPECTED) - return dm->brightness[bl_idx]; - return convert_brightness_to_user(&caps, ret); } + + ret = dc_link_get_backlight_level(link); + + if (ret == DC_ERROR_UNEXPECTED) + return dm->brightness[bl_idx]; + + return convert_brightness_to_user(&caps, ret); }static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd)
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
