Merge tag 'gvt-next-fixes-2021-04-21' of https://github.com/intel/gvt-linux into drm-intel-next-fixes

gvt-next-fixes-2021-04-21

- Remove one unused function warning (Jiapeng)
- Fix intel_gvt_init_device() return type (Dan)
- Remove one duplicated register accessible check (Zhenyu)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210421094522.GU1551@zhen-hp.sh.intel.com

Author: jnikula

drivers/gpu/drm/i915/gvt/cmd_parser.c

@@ -941,11 +941,6 @@ static int cmd_reg_handler(struct parser_exec_state *s,
 
 	/* below are all lri handlers */
 	vreg = &vgpu_vreg(s->vgpu, offset);
-	if (!intel_gvt_mmio_is_cmd_accessible(gvt, offset)) {
-		gvt_vgpu_err("%s access to non-render register (%x)\n",
-				cmd, offset);
-		return -EBADRQC;
-	}
 
 	if (is_cmd_update_pdps(offset, s) &&
 	    cmd_pdp_mmio_update_handler(s, offset, index))

drivers/gpu/drm/i915/gvt/gtt.c

@@ -587,12 +587,6 @@ static void _ppgtt_set_root_entry(struct intel_vgpu_mm *mm,
 			   entry, index, false, 0, mm->vgpu);
 }
 
-static inline void ppgtt_set_guest_root_entry(struct intel_vgpu_mm *mm,
-		struct intel_gvt_gtt_entry *entry, unsigned long index)
-{
-	_ppgtt_set_root_entry(mm, entry, index, true);
-}
-
 static inline void ppgtt_set_shadow_root_entry(struct intel_vgpu_mm *mm,
 		struct intel_gvt_gtt_entry *entry, unsigned long index)
 {

drivers/gpu/drm/i915/gvt/gvt.c

@@ -126,7 +126,7 @@ static bool intel_get_gvt_attrs(struct attribute_group ***intel_vgpu_type_groups
 	return true;
 }
 
-static bool intel_gvt_init_vgpu_type_groups(struct intel_gvt *gvt)
+static int intel_gvt_init_vgpu_type_groups(struct intel_gvt *gvt)
 {
 	int i, j;
 	struct intel_vgpu_type *type;
@@ -144,15 +144,15 @@ static bool intel_gvt_init_vgpu_type_groups(struct intel_gvt *gvt)
 		gvt_vgpu_type_groups[i] = group;
 	}
 
-	return true;
+	return 0;
 
 unwind:
 	for (j = 0; j < i; j++) {
 		group = gvt_vgpu_type_groups[j];
 		kfree(group);
 	}
 
-	return false;
+	return -ENOMEM;
 }
 
 static void intel_gvt_cleanup_vgpu_type_groups(struct intel_gvt *gvt)
@@ -373,7 +373,7 @@ int intel_gvt_init_device(struct drm_i915_private *i915)
 		goto out_clean_thread;
 
 	ret = intel_gvt_init_vgpu_type_groups(gvt);
-	if (ret == false) {
+	if (ret) {
 		gvt_err("failed to init vgpu type groups: %d\n", ret);
 		goto out_clean_types;
 	}