iommu: Remove iommu_map_atomic()

There is only one call site and it can now just pass the GFP_ATOMIC to the
normal iommu_map().

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/2-v3-76b587fe28df+6e3-iommu_map_gfp_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 8bdb65e..7016db5 100644 (file)
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -713,7 +713,7 @@ static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys,
        if (!iova)
                return DMA_MAPPING_ERROR;
 
-       if (iommu_map_atomic(domain, iova, phys - iova_off, size, prot)) {
+       if (iommu_map(domain, iova, phys - iova_off, size, prot, GFP_ATOMIC)) {
                iommu_dma_free_iova(cookie, iova, size, NULL);
                return DMA_MAPPING_ERROR;
        }

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 4d596b8..19b1c33 100644 (file)
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -2381,13 +2381,6 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
 }
 EXPORT_SYMBOL_GPL(iommu_map);
 
-int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova,
-             phys_addr_t paddr, size_t size, int prot)
-{
-       return iommu_map(domain, iova, paddr, size, prot, GFP_ATOMIC);
-}
-EXPORT_SYMBOL_GPL(iommu_map_atomic);
-
 static size_t __iommu_unmap_pages(struct iommu_domain *domain,
                                  unsigned long iova, size_t size,
                                  struct iommu_iotlb_gather *iotlb_gather)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index d202099..521cd79 100644 (file)
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -468,8 +468,6 @@ extern struct iommu_domain *iommu_get_domain_for_dev(struct device *dev);
 extern struct iommu_domain *iommu_get_dma_domain(struct device *dev);
 extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
                     phys_addr_t paddr, size_t size, int prot, gfp_t gfp);
-extern int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova,
-                           phys_addr_t paddr, size_t size, int prot);
 extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
                          size_t size);
 extern size_t iommu_unmap_fast(struct iommu_domain *domain,
@@ -778,13 +776,6 @@ static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,
        return -ENODEV;
 }
 
-static inline int iommu_map_atomic(struct iommu_domain *domain,
-                                  unsigned long iova, phys_addr_t paddr,
-                                  size_t size, int prot)
-{
-       return -ENODEV;
-}
-
 static inline size_t iommu_unmap(struct iommu_domain *domain,
                                 unsigned long iova, size_t size)
 {