Commit 39d4ebb9 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/core: Define iommu_ops and register_iommu only with CONFIG_IOMMU_API 



This makes it impossible to compile an iommu driver into the
kernel without selecting CONFIG_IOMMU_API.

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent 51acc0bc

include/linux/iommu.h

+3 −5
Original line number Diff line number Diff line
@@ -34,6 +34,8 @@ struct iommu_domain { 
#define IOMMU_CAP_CACHE_COHERENCY	0x1

#define IOMMU_CAP_INTR_REMAP		0x2	/* isolates device intrs */



#ifdef CONFIG_IOMMU_API



struct iommu_ops {

	int (*domain_init)(struct iommu_domain *domain);

	void (*domain_destroy)(struct iommu_domain *domain);
@@ -49,8 +51,6 @@ struct iommu_ops { 
			      unsigned long cap);

};



#ifdef CONFIG_IOMMU_API



extern void register_iommu(struct iommu_ops *ops);

extern bool iommu_found(void);

extern struct iommu_domain *iommu_domain_alloc(void);
@@ -70,9 +70,7 @@ extern int iommu_domain_has_cap(struct iommu_domain *domain, 


#else /* CONFIG_IOMMU_API */



static inline void register_iommu(struct iommu_ops *ops)

{

}

struct iommu_ops {};



static inline bool iommu_found(void)

{