drm/i915: check i915_get_reset_stats_ioctl args
Insist that flags and pad fields are zero, so that
we can safely extend the interface in future.
Testcase: igt/gem_reset_stats/params
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 21cf951..a881906 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -641,6 +641,9 @@
struct i915_ctx_hang_stats *hs;
int ret;
+ if (args->flags || args->pad)
+ return -EINVAL;
+
if (args->ctx_id == DEFAULT_CONTEXT_ID && !capable(CAP_SYS_ADMIN))
return -EPERM;