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| author | Jani Nikula <jani.nikula@intel.com> | 2015-07-02 17:43:21 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-07-06 12:37:03 +0300 |
| commit | 2d80391d36e698e8dabc3b3ff0969fc6fde156c4 (patch) | |
| tree | 875009226fc35d69db9d4d220d208a1067a1421f /drivers/gpu/drm/i915/intel_opregion.c | |
| parent | 856974a401bacf4fee1f3e3b2f601b7abfd5fa2a (diff) | |
| download | linux-2d80391d36e698e8dabc3b3ff0969fc6fde156c4.tar.xz | |
drm/i915/opregion: use BUILD_BUG_ON to verify mailbox struct sizes
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_opregion.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_opregion.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 71e87abdcae7..c4756a2d77bb 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -862,6 +862,11 @@ int intel_opregion_setup(struct drm_device *dev) char buf[sizeof(OPREGION_SIGNATURE)]; int err = 0; + BUILD_BUG_ON(sizeof(struct opregion_header) != 0x100); + BUILD_BUG_ON(sizeof(struct opregion_acpi) != 0x100); + BUILD_BUG_ON(sizeof(struct opregion_swsci) != 0x100); + BUILD_BUG_ON(sizeof(struct opregion_asle) != 0x100); + pci_read_config_dword(dev->pdev, PCI_ASLS, &asls); DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); if (asls == 0) { |