iommu: Delete iommu_dma_free_cpu_cached_iovas()

Function iommu_dma_free_cpu_cached_iovas() no longer has any caller, so
delete it.

With that, function free_cpu_cached_iovas() may be made static.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/1616675401-151997-4-git-send-email-john.garry@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index fdd095e..0af4048 100644 (file)
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -64,15 +64,6 @@ static int __init iommu_dma_forcedac_setup(char *str)
 }
 early_param("iommu.forcedac", iommu_dma_forcedac_setup);
 
-void iommu_dma_free_cpu_cached_iovas(unsigned int cpu,
-               struct iommu_domain *domain)
-{
-       struct iommu_dma_cookie *cookie = domain->iova_cookie;
-       struct iova_domain *iovad = &cookie->iovad;
-
-       free_cpu_cached_iovas(cpu, iovad);
-}
-
 static void iommu_dma_entry_dtor(unsigned long data)
 {
        struct page *freelist = (struct page *)data;

diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index 8542059..c9726e1 100644 (file)
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -22,6 +22,7 @@ static unsigned long iova_rcache_get(struct iova_domain *iovad,
                                     unsigned long size,
                                     unsigned long limit_pfn);
 static void init_iova_rcaches(struct iova_domain *iovad);
+static void free_cpu_cached_iovas(unsigned int cpu, struct iova_domain *iovad);
 static void free_iova_rcaches(struct iova_domain *iovad);
 static void fq_destroy_all_entries(struct iova_domain *iovad);
 static void fq_flush_timeout(struct timer_list *t);
@@ -1040,7 +1041,7 @@ static void free_iova_rcaches(struct iova_domain *iovad)
 /*
  * free all the IOVA ranges cached by a cpu (used when cpu is unplugged)
  */
-void free_cpu_cached_iovas(unsigned int cpu, struct iova_domain *iovad)
+static void free_cpu_cached_iovas(unsigned int cpu, struct iova_domain *iovad)
 {
        struct iova_cpu_rcache *cpu_rcache;
        struct iova_rcache *rcache;

diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h
index 13d1f4c..6e75a2d 100644 (file)
--- a/include/linux/dma-iommu.h
+++ b/include/linux/dma-iommu.h
@@ -83,10 +83,5 @@ static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_he
 {
 }
 
-static inline void iommu_dma_free_cpu_cached_iovas(unsigned int cpu,
-               struct iommu_domain *domain)
-{
-}
-
 #endif /* CONFIG_IOMMU_DMA */
 #endif /* __DMA_IOMMU_H */

diff --git a/include/linux/iova.h b/include/linux/iova.h
index 4be6c0a..71d8a2d 100644 (file)
--- a/include/linux/iova.h
+++ b/include/linux/iova.h
@@ -157,7 +157,6 @@ int init_iova_flush_queue(struct iova_domain *iovad,
                          iova_flush_cb flush_cb, iova_entry_dtor entry_dtor);
 struct iova *find_iova(struct iova_domain *iovad, unsigned long pfn);
 void put_iova_domain(struct iova_domain *iovad);
-void free_cpu_cached_iovas(unsigned int cpu, struct iova_domain *iovad);
 #else
 static inline int iova_cache_get(void)
 {
@@ -234,10 +233,6 @@ static inline void put_iova_domain(struct iova_domain *iovad)
 {
 }
 
-static inline void free_cpu_cached_iovas(unsigned int cpu,
-                                        struct iova_domain *iovad)
-{
-}
 #endif
 
 #endif