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iommu: Delete iommu_dma_free_cpu_cached_iovas()

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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>
This commit is contained in:
John Garry 2021-03-25 20:30:00 +08:00 committed by Joerg Roedel
parent 363f266eef
commit 149448b353
4 changed files with 2 additions and 20 deletions
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9
drivers/iommu/dma-iommu.c
View File

@ -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;

3
drivers/iommu/iova.c
View File

@ -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;

5
include/linux/dma-iommu.h
View File

@ -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 */

5
include/linux/iova.h
View File

@ -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