Extern or forward variable declaration at drivers/gpu/drm/radeon/radeon_acpi.h, line 27 References: drivers/gpu/drm/radeon/radeon_acpi.c, line 38 drivers/gpu/drm/radeon/radeon_acpi.c, line 348 drivers/gpu/drm/radeon/radeon_acpi.c, line 529 drivers/gpu/drm/radeon/radeon_acpi.c, line 548 drivers/gpu/drm/radeon/radeon_acpi.c, line 582 drivers/gpu/drm/radeon/radeon_acpi.c, line 664 drivers/gpu/drm/radeon/radeon_acpi.c, line 664 drivers/gpu/drm/radeon/radeon_acpi.c, line 690 drivers/gpu/drm/radeon/radeon_acpi.c, line 787 drivers/gpu/drm/radeon/radeon_acpi.h, line 27 drivers/gpu/drm/radeon/radeon_acpi.h, line 30