iommu/vt-d: Remove unused dma_to_mm_pfn function

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 <[email protected]>
Reviewed-by: Nick Desaulniers <[email protected]>
Signed-off-by: Lu Baolu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Joerg Roedel <[email protected]>

0 files changed, 0 insertions, 0 deletions