[4.9,105/130] arm64: mm: avoid name clash in __page_to_voff()
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Message ID 20170124075539.224817862@linuxfoundation.org
State New, archived
Headers show
  • 4.9.6-stable review
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Commit Message

Greg KH Jan. 24, 2017, 7:55 a.m. UTC
4.9-stable review patch.  If anyone has any objections, please let me know.


From: Oleksandr Andrushchenko <Oleksandr_Andrushchenko@epam.com>

commit 1c8a946bf3754a59cba1fc373949a8114bfe5aaa upstream.

The arm64 __page_to_voff() macro takes a parameter called 'page', and
also refers to 'struct page'. Thus, if the value passed in is not
called 'page', we'll refer to the wrong struct name (which might not

Fixes: 3fa72fe9c614 ("arm64: mm: fix __page_to_voff definition")
Acked-by: Mark Rutland <mark.rutland@arm.com>
Suggested-by: Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>
Signed-off-by: Oleksandr Andrushchenko <Oleksandr_Andrushchenko@epam.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

 arch/arm64/include/asm/memory.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -217,7 +217,7 @@  static inline void *phys_to_virt(phys_ad
 #define _virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 #define __virt_to_pgoff(kaddr)	(((u64)(kaddr) & ~PAGE_OFFSET) / PAGE_SIZE * sizeof(struct page))
-#define __page_to_voff(page)	(((u64)(page) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
+#define __page_to_voff(kaddr)	(((u64)(kaddr) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
 #define page_to_virt(page)	((void *)((__page_to_voff(page)) | PAGE_OFFSET))
 #define virt_to_page(vaddr)	((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START))