drm/exynos/ipp: replace work_struct casting with better constructs

Type casting should be avoided if possible. In case of
work_struct it can be simply replaced by reference to member field.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

4 files changed, 6 insertions, 8 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
index ec7cc9ea50df..7a5338ed2433 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -1298,7 +1298,7 @@ static irqreturn_t fimc_irq_handler(int irq, void *dev_id)
 
         event_work->ippdrv = ippdrv;
         event_work->buf_id[EXYNOS_DRM_OPS_DST] = buf_id;
-        queue_work(ippdrv->event_workq, (struct work_struct *)event_work);
+        queue_work(ippdrv->event_workq, &event_work->work);
 
         return IRQ_HANDLED;
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 9e3ff1672965..c6a013fc321c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -1326,8 +1326,7 @@ static irqreturn_t gsc_irq_handler(int irq, void *dev_id)
                         buf_id[EXYNOS_DRM_OPS_SRC];
                 event_work->buf_id[EXYNOS_DRM_OPS_DST] =
                         buf_id[EXYNOS_DRM_OPS_DST];
-                queue_work(ippdrv->event_workq,
-                        (struct work_struct *)event_work);
+                queue_work(ippdrv->event_workq, &event_work->work);
         }
 
         return IRQ_HANDLED;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
index 857817cc9b4a..fff3509f7b97 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
@@ -790,7 +790,7 @@ static void ipp_handle_cmd_work(struct device *dev,
 
         cmd_work->ippdrv = ippdrv;
         cmd_work->c_node = c_node;
-        queue_work(ctx->cmd_workq, (struct work_struct *)cmd_work);
+        queue_work(ctx->cmd_workq, &cmd_work->work);
 }
 
 static int ipp_queue_buf_with_run(struct device *dev,
@@ -1318,7 +1318,7 @@ err_clear:
 void ipp_sched_cmd(struct work_struct *work)
 {
         struct drm_exynos_ipp_cmd_work *cmd_work =
-                (struct drm_exynos_ipp_cmd_work *)work;
+                container_of(work, struct drm_exynos_ipp_cmd_work, work);
         struct exynos_drm_ippdrv *ippdrv;
         struct drm_exynos_ipp_cmd_node *c_node;
         struct drm_exynos_ipp_property *property;
@@ -1531,7 +1531,7 @@ err_event_unlock:
 void ipp_sched_event(struct work_struct *work)
 {
         struct drm_exynos_ipp_event_work *event_work =
-                (struct drm_exynos_ipp_event_work *)work;
+                container_of(work, struct drm_exynos_ipp_event_work, work);
         struct exynos_drm_ippdrv *ippdrv;
         struct drm_exynos_ipp_cmd_node *c_node;
         int ret;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
index 55af6b41c1df..b6a37d4f5b13 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
@@ -156,8 +156,7 @@ static irqreturn_t rotator_irq_handler(int irq, void *arg)
                 event_work->ippdrv = ippdrv;
                 event_work->buf_id[EXYNOS_DRM_OPS_DST] =
                         rot->cur_buf_id[EXYNOS_DRM_OPS_DST];
-                queue_work(ippdrv->event_workq,
-                        (struct work_struct *)event_work);
+                queue_work(ippdrv->event_workq, &event_work->work);
         } else {
                 DRM_ERROR("the SFR is set illegally\n");
         }