<div dir="ltr"> <div class="gmail_extra"> <div class="gmail_quote">On Mon, Mar 27, 2017 at 9:32 PM, Matthew Auld <<a href="mailto:matthew.auld@intel.com" target="_blank">matthew.auld@intel.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Don't throw a warning if we are given an invalid property id. While here let's also bring back Robert' original idea of catching unhandled enumeration values at compile time. Fixes: eec688e1420d ("drm/i915: Add i915 perf infrastructure") Signed-off-by: Matthew Auld <<a href="mailto:matthew.auld@intel.com">matthew.auld@intel.com</a>> Cc: Robert Bragg <<a href="mailto:robert@sixbynine.org">robert@sixbynine.org</a>> --- drivers/gpu/drm/i915/i915_perf.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index 8c121187ff39..e52bc6a581e6 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -1793,6 +1793,11 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv, if (ret) return ret; + if (id == 0 || id >= DRM_I915_PERF_PROP_MAX) { + DRM_DEBUG("Unknown i915 perf property ID\n"); + return -EINVAL; + } + switch ((enum drm_i915_perf_property_id)id) { case DRM_I915_PERF_PROP_CTX_HANDLE: props->single_context = 1; @@ -1862,9 +1867,8 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv, props->oa_periodic = true; props->oa_period_exponent = value; break; - default: + case DRM_I915_PERF_PROP_MAX: MISSING_CASE(id); - DRM_DEBUG("Unknown i915 perf property ID\n"); return -EINVAL; } -- 2.9.3 </blockquote><div> </div><div>Looks good to me, thanks. </div><div>Reviewed-by: Robert Bragg <<a href="mailto:robert@sixbynine.org">robert@sixbynine.org</a>> </div></div> </div></div>