Positively checking for the required feature/gen is simpler than build a cascade of negative "we need to bail" checks. And the later won't scale if we add more stuff that doesn't fit in nicely. Signed-Off-by: Daniel Vetter <daniel.vetter at ffwll.ch> --- drivers/gpu/drm/i915/i915_sysfs.c | 24 +++++++++++------------- 1 files changed, 11 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index c201327..2f5388a 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -205,20 +205,18 @@ void i915_setup_sysfs(struct drm_device *dev) { int ret; - /* ILK and below don't yet have relevant sysfs files */ - if (INTEL_INFO(dev)->gen < 6) - return; - - ret = sysfs_merge_group(&dev->primary->kdev.kobj, &rc6_attr_group); - if (ret) - DRM_ERROR("RC6 residency sysfs setup failed\n"); - - if (!IS_IVYBRIDGE(dev)) - return; + if (INTEL_INFO(dev)->gen >= 6) { + ret = sysfs_merge_group(&dev->primary->kdev.kobj, + &rc6_attr_group); + if (ret) + DRM_ERROR("RC6 residency sysfs setup failed\n"); + } - ret = device_create_bin_file(&dev->primary->kdev, &dpf_attrs); - if (ret) - DRM_ERROR("l3 parity sysfs setup failed\n"); + if (IS_IVYBRIDGE(dev)) { + ret = device_create_bin_file(&dev->primary->kdev, &dpf_attrs); + if (ret) + DRM_ERROR("l3 parity sysfs setup failed\n"); + } } void i915_teardown_sysfs(struct drm_device *dev) -- 1.7.9