Handling the array of CRTC duplicate the struct msm_drm_private duplicates a list of CRTCs in the drm_device. Drop it and use the existing list for CRTC enumeration.

Reported-by: kernel test robot lkp@intel.com Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 2 +- drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 2 +- drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 2 +- drivers/gpu/drm/msm/msm_drv.c | 29 ++++++++++++------------ drivers/gpu/drm/msm/msm_drv.h | 3 +-- 5 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index e23e2552e802..e79f0a8817ac 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -806,7 +806,7 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms) ret = PTR_ERR(crtc); return ret; } - priv->crtcs[priv->num_crtcs++] = crtc; + priv->num_crtcs++; }

/* All CRTCs are compatible with all encoders */ diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c index fb48c8c19ec3..7449c1693e45 100644 --- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c @@ -337,7 +337,7 @@ static int modeset_init(struct mdp4_kms *mdp4_kms) goto fail; }

- priv->crtcs[priv->num_crtcs++] = crtc; + priv->num_crtcs++; }

/* diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c index 3d5621a68f85..36808990f840 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c @@ -497,7 +497,7 @@ static int modeset_init(struct mdp5_kms *mdp5_kms) DRM_DEV_ERROR(dev->dev, "failed to construct crtc %d (%d)\n", i, ret); goto fail; } - priv->crtcs[priv->num_crtcs++] = crtc; + priv->num_crtcs++; }

/* diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 44485363f37a..29e508f69e19 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -149,7 +149,7 @@ static void msm_irq_uninstall(struct drm_device *dev)

struct msm_vblank_work { struct work_struct work; - int crtc_id; + struct drm_crtc *crtc; bool enable; struct msm_drm_private *priv; }; @@ -162,15 +162,15 @@ static void vblank_ctrl_worker(struct work_struct *work) struct msm_kms *kms = priv->kms;

if (vbl_work->enable) - kms->funcs->enable_vblank(kms, priv->crtcs[vbl_work->crtc_id]); + kms->funcs->enable_vblank(kms, vbl_work->crtc); else - kms->funcs->disable_vblank(kms, priv->crtcs[vbl_work->crtc_id]); + kms->funcs->disable_vblank(kms, vbl_work->crtc);

kfree(vbl_work); }

static int vblank_ctrl_queue_work(struct msm_drm_private *priv, - int crtc_id, bool enable) + struct drm_crtc *crtc, bool enable) { struct msm_vblank_work *vbl_work;

@@ -180,7 +180,7 @@ static int vblank_ctrl_queue_work(struct msm_drm_private *priv,

INIT_WORK(&vbl_work->work, vblank_ctrl_worker);

- vbl_work->crtc_id = crtc_id; + vbl_work->crtc = crtc; vbl_work->enable = enable; vbl_work->priv = priv;

@@ -354,6 +354,7 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) struct msm_drm_private *priv = dev_get_drvdata(dev); struct drm_device *ddev; struct msm_kms *kms; + struct drm_crtc *crtc; int ret, i;

if (drm_firmware_drivers_only()) @@ -427,12 +428,14 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) ddev->mode_config.funcs = &mode_config_funcs; ddev->mode_config.helper_private = &mode_config_helper_funcs;

- for (i = 0; i < priv->num_crtcs; i++) { + drm_for_each_crtc(crtc, ddev) { + i = drm_crtc_index(crtc); + /* initialize event thread */ - priv->event_thread[i].crtc_id = priv->crtcs[i]->base.id; + priv->event_thread[i].crtc = crtc; priv->event_thread[i].dev = ddev; priv->event_thread[i].worker = kthread_create_worker(0, - "crtc_event:%d", priv->event_thread[i].crtc_id); + "crtc_event:%d", priv->event_thread[i].crtc->base.id); if (IS_ERR(priv->event_thread[i].worker)) { ret = PTR_ERR(priv->event_thread[i].worker); DRM_DEV_ERROR(dev, "failed to create crtc_event kthread\n"); @@ -563,25 +566,23 @@ static void msm_postclose(struct drm_device *dev, struct drm_file *file) int msm_crtc_enable_vblank(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; - unsigned int pipe = crtc->index; struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; if (!kms) return -ENXIO; - drm_dbg_vbl(dev, "crtc=%u", pipe); - return vblank_ctrl_queue_work(priv, pipe, true); + drm_dbg_vbl(dev, "crtc=%u", crtc->base.id); + return vblank_ctrl_queue_work(priv, crtc, true); }

void msm_crtc_disable_vblank(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; - unsigned int pipe = crtc->index; struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; if (!kms) return; - drm_dbg_vbl(dev, "crtc=%u", pipe); - vblank_ctrl_queue_work(priv, pipe, false); + drm_dbg_vbl(dev, "crtc=%u", crtc->base.id); + vblank_ctrl_queue_work(priv, crtc, false); }

/* diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 08388d742d65..0e98b6f161df 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -102,7 +102,7 @@ struct msm_display_topology { /* Commit/Event thread specific structure */ struct msm_drm_thread { struct drm_device *dev; - unsigned int crtc_id; + struct drm_crtc *crtc; struct kthread_worker *worker; };

@@ -178,7 +178,6 @@ struct msm_drm_private { struct workqueue_struct *wq;

unsigned int num_crtcs; - struct drm_crtc *crtcs[MAX_CRTCS];

struct msm_drm_thread event_thread[MAX_CRTCS];