drm/msm/dpu: drop (mostly) unused DPU_NAME_SIZE define

This define is used only in one place, in dpu_encoder debugfs code.
Inline the value and drop the define completely.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/538303/
Link: https://lore.kernel.org/r/20230521192230.9747-2-dmitry.baryshkov@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c

@@ -2116,14 +2116,14 @@ static int _dpu_encoder_init_debugfs(struct drm_encoder *drm_enc)
 {
 	struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc);
 
-	char name[DPU_NAME_SIZE];
+	char name[12];
 
 	if (!drm_enc->dev) {
 		DPU_ERROR("invalid encoder or kms\n");
 		return -EINVAL;
 	}
 
-	snprintf(name, DPU_NAME_SIZE, "encoder%u", drm_enc->base.id);
+	snprintf(name, sizeof(name), "encoder%u", drm_enc->base.id);
 
 	/* create overall sub-directory for the encoder */
 	dpu_enc->debugfs_root = debugfs_create_dir(name,

drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h

@@ -63,8 +63,6 @@
 #define ktime_compare_safe(A, B) \
 	ktime_compare(ktime_sub((A), (B)), ktime_set(0, 0))
 
-#define DPU_NAME_SIZE  12
-
 struct dpu_kms {
 	struct msm_kms base;
 	struct drm_device *dev;

drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c

@@ -42,8 +42,6 @@
 #define SHARP_SMOOTH_THR_DEFAULT	8
 #define SHARP_NOISE_THR_DEFAULT	2
 
-#define DPU_NAME_SIZE  12
-
 #define DPU_PLANE_COLOR_FILL_FLAG	BIT(31)
 #define DPU_ZPOS_MAX 255