[PATCH hwc] drm_hwcomposer: fix warnings on unused variables and parameters

[Robert Foss]

Hey Rob,

I applied and tested this patch, and it looks good to me.

Feel free to add my SB/TB.


Rob.

On Wed, 2017-11-29 at 10:21 -0600, Rob Herring wrote:
> AOSP master now builds by default with -Werror, so fix all the
> warnings.
> All the warnings are related to unused variables and parameters.
> 
> Signed-off-by: Rob Herring <robh at kernel.org>
> ---
>  drmcrtc.cpp              | 7 +------
>  drmcrtc.h                | 6 ------
>  drmdisplaycompositor.cpp | 3 ---
>  drmencoder.cpp           | 1 -
>  drmencoder.h             | 2 --
>  drmhwctwo.cpp            | 3 +--
>  glworker.cpp             | 1 -
>  platform.cpp             | 4 ++--
>  8 files changed, 4 insertions(+), 23 deletions(-)
> 
> diff --git a/drmcrtc.cpp b/drmcrtc.cpp
> index c1398699d40d..1b354fe3db61 100644
> --- a/drmcrtc.cpp
> +++ b/drmcrtc.cpp
> @@ -31,12 +31,7 @@ DrmCrtc::DrmCrtc(DrmResources *drm, drmModeCrtcPtr
> c, unsigned pipe)
>        id_(c->crtc_id),
>        pipe_(pipe),
>        display_(-1),
> -      x_(c->x),
> -      y_(c->y),
> -      width_(c->width),
> -      height_(c->height),
> -      mode_(&c->mode),
> -      mode_valid_(c->mode_valid) {
> +      mode_(&c->mode) {
>  }
>  
>  int DrmCrtc::Init() {
> diff --git a/drmcrtc.h b/drmcrtc.h
> index 2e8c8118a21d..c5a559968b87 100644
> --- a/drmcrtc.h
> +++ b/drmcrtc.h
> @@ -54,13 +54,7 @@ class DrmCrtc {
>    unsigned pipe_;
>    int display_;
>  
> -  uint32_t x_;
> -  uint32_t y_;
> -  uint32_t width_;
> -  uint32_t height_;
> -
>    DrmMode mode_;
> -  bool mode_valid_;
>  
>    DrmProperty active_property_;
>    DrmProperty mode_property_;
> diff --git a/drmdisplaycompositor.cpp b/drmdisplaycompositor.cpp
> index dceb78d452c4..acd13b834e2a 100644
> --- a/drmdisplaycompositor.cpp
> +++ b/drmdisplaycompositor.cpp
> @@ -490,8 +490,6 @@ int
> DrmDisplayCompositor::CommitFrame(DrmDisplayComposition
> *display_comp,
>    std::vector<DrmHwcLayer> &layers = display_comp->layers();
>    std::vector<DrmCompositionPlane> &comp_planes =
>        display_comp->composition_planes();
> -  std::vector<DrmCompositionRegion> &pre_comp_regions =
> -      display_comp->pre_comp_regions();
>    uint64_t out_fences[drm_->crtcs().size()];
>  
>    DrmConnector *connector = drm_->GetConnectorForDisplay(display_);
> @@ -681,7 +679,6 @@ int
> DrmDisplayCompositor::CommitFrame(DrmDisplayComposition
> *display_comp,
>      }
>    }
>  
> -out:
>    if (!ret) {
>      uint32_t flags = DRM_MODE_ATOMIC_ALLOW_MODESET;
>      if (test_only)
> diff --git a/drmencoder.cpp b/drmencoder.cpp
> index 1d4ebdc591ad..3d762f34919d 100644
> --- a/drmencoder.cpp
> +++ b/drmencoder.cpp
> @@ -27,7 +27,6 @@ DrmEncoder::DrmEncoder(drmModeEncoderPtr e, DrmCrtc
> *current_crtc,
>                         const std::vector<DrmCrtc *> &possible_crtcs)
>      : id_(e->encoder_id),
>        crtc_(current_crtc),
> -      type_(e->encoder_type),
>        possible_crtcs_(possible_crtcs) {
>  }
>  
> diff --git a/drmencoder.h b/drmencoder.h
> index ed3c21e1923c..58ccbfbc5004 100644
> --- a/drmencoder.h
> +++ b/drmencoder.h
> @@ -45,8 +45,6 @@ class DrmEncoder {
>    uint32_t id_;
>    DrmCrtc *crtc_;
>  
> -  uint32_t type_;
> -
>    std::vector<DrmCrtc *> possible_crtcs_;
>  };
>  }
> diff --git a/drmhwctwo.cpp b/drmhwctwo.cpp
> index 54824b8ce1af..5ab4595bce96 100644
> --- a/drmhwctwo.cpp
> +++ b/drmhwctwo.cpp
> @@ -242,7 +242,6 @@ HWC2::Error
> DrmHwcTwo::HwcDisplay::RegisterVsyncCallback(
>  
>  HWC2::Error DrmHwcTwo::HwcDisplay::AcceptDisplayChanges() {
>    supported(__func__);
> -  uint32_t num_changes = 0;
>    for (std::pair<const hwc2_layer_t, DrmHwcTwo::HwcLayer> &l :
> layers_)
>      l.second.accept_type_change();
>    return HWC2::Error::None;
> @@ -614,7 +613,7 @@ HWC2::Error
> DrmHwcTwo::HwcDisplay::SetActiveConfig(hwc2_config_t config) {
>  HWC2::Error DrmHwcTwo::HwcDisplay::SetClientTarget(buffer_handle_t
> target,
>                                                     int32_t
> acquire_fence,
>                                                     int32_t
> dataspace,
> -                                                   hwc_region_t
> damage) {
> +                                                   hwc_region_t
> /*damage*/) {
>    supported(__func__);
>    UniqueFd uf(acquire_fence);
>  
> diff --git a/glworker.cpp b/glworker.cpp
> index e90576a75f1a..ca726bf573ba 100644
> --- a/glworker.cpp
> +++ b/glworker.cpp
> @@ -478,7 +478,6 @@ int GLWorkerCompositor::Init() {
>    const char *egl_extensions;
>    const char *gl_extensions;
>    EGLint num_configs;
> -  EGLint attribs[] = {EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE,
> EGL_NONE};
>    EGLConfig egl_config;
>  
>    // clang-format off
> diff --git a/platform.cpp b/platform.cpp
> index e920872fa180..56ab37e12d94 100644
> --- a/platform.cpp
> +++ b/platform.cpp
> @@ -142,8 +142,8 @@ int PlanStageProtected::ProvisionPlanes(
>  
>  int PlanStagePrecomp::ProvisionPlanes(
>      std::vector<DrmCompositionPlane> *composition,
> -    std::map<size_t, DrmHwcLayer *> &layers, DrmCrtc *crtc,
> -    std::vector<DrmPlane *> *planes) {
> +    std::map<size_t, DrmHwcLayer *> &layers, DrmCrtc * /*crtc*/,
> +    std::vector<DrmPlane *> * /*planes*/) {
>    DrmCompositionPlane *precomp = GetPrecomp(composition);
>    if (!precomp || precomp->source_layers().empty())
>      return 0;
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