In insert_mappable_node(), the parameter node is
cleared late in node's use with memset.
insert_mappable_node() is a singleton, called only
from i915_gem_gtt_prepare() which itself is only
called by i915_gem_gtt_pread() and
i915_gem_gtt_pwrite_fast() where the definition of
node originates.
Instead of using memset, initialize node to 0 at it's
definitions. And remove unneeded clearing of the flags
element.
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 2e10187cd0a0..7dbd0b325c43 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -69,7 +69,6 @@ insert_mappable_node(struct i915_ggtt *ggtt, struct drm_mm_node *node, u32 size)
if (err)
return err;
- memset(node, 0, sizeof(*node));
err = drm_mm_insert_node_in_range(&ggtt->vm.mm, node,
size, 0, I915_COLOR_UNEVICTABLE,
0, ggtt->mappable_end,
@@ -328,7 +327,6 @@ static struct i915_vma *i915_gem_gtt_prepare(struct drm_i915_gem_object *obj,
goto err_ww;
} else if (!IS_ERR(vma)) {
node->start = i915_ggtt_offset(vma);
- node->flags = 0;
} else {
ret = insert_mappable_node(ggtt, node, PAGE_SIZE);
if (ret)
@@ -381,7 +379,7 @@ i915_gem_gtt_pread(struct drm_i915_gem_object *obj,
struct drm_i915_private *i915 = to_i915(obj->base.dev);
struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
intel_wakeref_t wakeref;
- struct drm_mm_node node;
+ struct drm_mm_node node = {};
void __user *user_data;
struct i915_vma *vma;
u64 remain, offset;
@@ -538,7 +536,7 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
struct intel_runtime_pm *rpm = &i915->runtime_pm;
intel_wakeref_t wakeref;
- struct drm_mm_node node;
+ struct drm_mm_node node = {};
struct i915_vma *vma;
u64 remain, offset;
void __user *user_data;
--
2.27.0
