RE: [PATCH 1/1] iommu/vt-d: Fix possible recursive locking in intel_iommu_init()

[Tian, Kevin]

> From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Sent: Tuesday, July 19, 2022 7:53 AM
> 
> @@ -88,7 +89,8 @@ extern struct list_head dmar_drhd_units;
>  static inline bool dmar_rcu_check(void)
>  {
>  	return rwsem_is_locked(&dmar_global_lock) ||
> -	       system_state == SYSTEM_BOOTING;
> +	       system_state == SYSTEM_BOOTING ||
> +	       (IS_ENABLED(CONFIG_INTEL_IOMMU)
> && !intel_iommu_enabled);
>  }

intel_iommu_enabled is 0 if CONFIG_INTEL_IOMMU is not set.

same for other similar checks.