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iommu/vt-d: Remove unused dma_to_mm_pfn function

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Remove dma_to_buf_pfn function, which is not used in the codebase.

This was pointed by clang with the following warning:

'dma_to_mm_pfn' [-Wunused-function]
static inline unsigned long dma_to_mm_pfn(unsigned long dma_pfn)
                            ^
https://lore.kernel.org/r/YYhY7GqlrcTZlzuA@fedora

drivers/iommu/intel/iommu.c:136:29: warning: unused function
Signed-off-by: Maíra Canal <maira.canal@usp.br>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20211217083817.1745419-4-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Maíra Canal 2021-12-17 16:38:16 +08:00 committed by Joerg Roedel
parent f5209f9127
commit c95a9c278d
1 changed files with 0 additions and 5 deletions
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5
drivers/iommu/intel/iommu.c
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@ -133,11 +133,6 @@ static inline unsigned long lvl_to_nr_pages(unsigned int lvl)
/* VT-d pages must always be _smaller_ than MM pages. Otherwise things
are never going to work. */
static inline unsigned long dma_to_mm_pfn(unsigned long dma_pfn)
{
return dma_pfn >> (PAGE_SHIFT - VTD_PAGE_SHIFT);
}
static inline unsigned long mm_to_dma_pfn(unsigned long mm_pfn)
{
return mm_pfn << (PAGE_SHIFT - VTD_PAGE_SHIFT);