drm/vc4: Demote user-accessible DRM_ERROR paths to DRM_DEBUG.
Userspace shouldn't be able to spam dmesg by passing bad arguments.
This has particularly become an issues since we started using a bad
argument to set_tiling to detect if set_tiling was supported.
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: 83753117f1de ("drm/vc4: Add get/set tiling ioctls.")
Link: https://patchwork.freedesktop.org/patch/msgid/20170725162733.28007-1-eric@anholt.net
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index 48c10a5..facee39 100644
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -482,7 +482,7 @@ vc4_prime_export(struct drm_device *dev, struct drm_gem_object *obj, int flags)
struct vc4_bo *bo = to_vc4_bo(obj);
if (bo->validated_shader) {
- DRM_ERROR("Attempting to export shader BO\n");
+ DRM_DEBUG("Attempting to export shader BO\n");
return ERR_PTR(-EINVAL);
}
@@ -503,7 +503,7 @@ int vc4_mmap(struct file *filp, struct vm_area_struct *vma)
bo = to_vc4_bo(gem_obj);
if (bo->validated_shader && (vma->vm_flags & VM_WRITE)) {
- DRM_ERROR("mmaping of shader BOs for writing not allowed.\n");
+ DRM_DEBUG("mmaping of shader BOs for writing not allowed.\n");
return -EINVAL;
}
@@ -528,7 +528,7 @@ int vc4_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
struct vc4_bo *bo = to_vc4_bo(obj);
if (bo->validated_shader && (vma->vm_flags & VM_WRITE)) {
- DRM_ERROR("mmaping of shader BOs for writing not allowed.\n");
+ DRM_DEBUG("mmaping of shader BOs for writing not allowed.\n");
return -EINVAL;
}
@@ -540,7 +540,7 @@ void *vc4_prime_vmap(struct drm_gem_object *obj)
struct vc4_bo *bo = to_vc4_bo(obj);
if (bo->validated_shader) {
- DRM_ERROR("mmaping of shader BOs not allowed.\n");
+ DRM_DEBUG("mmaping of shader BOs not allowed.\n");
return ERR_PTR(-EINVAL);
}
@@ -594,7 +594,7 @@ int vc4_mmap_bo_ioctl(struct drm_device *dev, void *data,
gem_obj = drm_gem_object_lookup(file_priv, args->handle);
if (!gem_obj) {
- DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);
+ DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle);
return -EINVAL;
}
@@ -698,7 +698,7 @@ int vc4_set_tiling_ioctl(struct drm_device *dev, void *data,
gem_obj = drm_gem_object_lookup(file_priv, args->handle);
if (!gem_obj) {
- DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);
+ DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle);
return -ENOENT;
}
bo = to_vc4_bo(gem_obj);
@@ -729,7 +729,7 @@ int vc4_get_tiling_ioctl(struct drm_device *dev, void *data,
gem_obj = drm_gem_object_lookup(file_priv, args->handle);
if (!gem_obj) {
- DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);
+ DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle);
return -ENOENT;
}
bo = to_vc4_bo(gem_obj);