[PATCH 7/8] drm/msm/dpu: drop dpu_core_perf_destroy()

[Dmitry Baryshkov]

On Tue, 4 Jul 2023 at 03:19, Abhinav Kumar <quic_abhinavk at quicinc.com> wrote:
>
>
>
> On 7/3/2023 3:59 PM, Dmitry Baryshkov wrote:
> > On Tue, 4 Jul 2023 at 01:57, Abhinav Kumar <quic_abhinavk at quicinc.com> wrote:
> >>
> >>
> >>
> >> On 6/19/2023 5:08 PM, Dmitry Baryshkov wrote:
> >>> This function does nothing, just clears several data pointers. Drop it
> >>> now.
> >>>
> >>
> >> This will undo what dpu_core_perf_init() did when an error happens.
> >>
> >> Why can we drop that?
> >
> > Because nothing will use this data in an error case. There is no need
> > to clean it.
> >
>
> Usage is one thing for sure but I am still inclined to keep it symmetric
> with dpu_core_perf_init().

Through the last several years the kernel was more and more inclined
to asymmetry here. For example, consider all the demv_ functions. We
have been removing cleanup and _remove functions all over the place.
So, I think, I will reiterate this patch.

>
> >>
> >>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> >>> ---
> >>>    drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 12 ------------
> >>>    drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h |  6 ------
> >>>    drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c       |  1 -
> >>>    3 files changed, 19 deletions(-)
> >>>
> >>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> >>> index 78a7e3ea27a4..f779ad544347 100644
> >>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> >>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
> >>> @@ -394,18 +394,6 @@ int dpu_core_perf_debugfs_init(struct dpu_kms *dpu_kms, struct dentry *parent)
> >>>    }
> >>>    #endif
> >>>
> >>> -void dpu_core_perf_destroy(struct dpu_core_perf *perf)
> >>> -{
> >>> -     if (!perf) {
> >>> -             DPU_ERROR("invalid parameters\n");
> >>> -             return;
> >>> -     }
> >>> -
> >>> -     perf->max_core_clk_rate = 0;
> >>> -     perf->core_clk = NULL;
> >>> -     perf->dev = NULL;
> >>> -}
> >>> -
> >>>    int dpu_core_perf_init(struct dpu_core_perf *perf,
> >>>                struct drm_device *dev,
> >>>                const struct dpu_perf_cfg *perf_cfg,
> >>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
> >>> index e8a7916b6f71..e1198c104b5e 100644
> >>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
> >>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
> >>> @@ -69,12 +69,6 @@ int dpu_core_perf_crtc_update(struct drm_crtc *crtc,
> >>>     */
> >>>    void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc);
> >>>
> >>> -/**
> >>> - * dpu_core_perf_destroy - destroy the given core performance context
> >>> - * @perf: Pointer to core performance context
> >>> - */
> >>> -void dpu_core_perf_destroy(struct dpu_core_perf *perf);
> >>> -
> >>>    /**
> >>>     * dpu_core_perf_init - initialize the given core performance context
> >>>     * @perf: Pointer to core performance context
> >>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> >>> index 6e62606e32de..4439147d2c35 100644
> >>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> >>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> >>> @@ -1162,7 +1162,6 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
> >>>        return 0;
> >>>
> >>>    drm_obj_init_err:
> >>> -     dpu_core_perf_destroy(&dpu_kms->perf);
> >>>    hw_intr_init_err:
> >>>    perf_err:
> >>>    power_error:
> >
> >
> >



-- 
With best wishes
Dmitry