From: =?utf-8?b?TWHDrXJhIENhbmFsIDxtYWlyYS5jYW5hbEB1c3AuYnI+?=
Date: Fri, 17 Dec 2021 16:38:16 +0800
Subject: iommu/vt-d: Remove unused dma_to_mm_pfn function
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Git-commit: c95a9c278df8733a4370182a20f1355d6a81c235
Patch-mainline: v5.17-rc1
References: bsc#1205701
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: MaĆra 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>
---
drivers/iommu/intel/iommu.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 261d931ee76e..56671c7f4c08 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -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);