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authorSudip Mukherjee <sudipm.mukherjee@gmail.com>2016-01-06 10:48:54 +1100
committerGeert Uytterhoeven <geert@linux-m68k.org>2016-01-10 13:56:40 +0100
commiteb37bc3f85b69f529d2ad06c41fad8dedd654c76 (patch)
tree716ed538ce326b43931a952b4c14637fbdcda232 /arch/m68k
parent2d522618c8d13abe87f8203dcb115bfcc555f88b (diff)
m68k: Provide __phys_to_pfn() and __pfn_to_phys()
The defconfig build of m68k was failing with the error: implicit declaration of function '__pfn_to_phys' Other architectures have added <asm/memory.h>, but if we do so here then we will also get redeclaration of some other functions. So it is better to copy these macros into page.h. Fixes: 0a3c3bf11240 ("x86, mm: introduce vmem_altmap to augment vmemmap_populate()") Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Cc: Dan Williams <dan.j.williams@intel.com> Reported-by: Guenter Roeck <linux@roeck-us.net> (m68knommu) [geert: Apply to page.h instead of page_mm.h to cover nommu, reword] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/include/asm/page.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h
index 38b024a0b045..430d4d54c883 100644
--- a/arch/m68k/include/asm/page.h
+++ b/arch/m68k/include/asm/page.h
@@ -48,6 +48,9 @@ extern unsigned long _ramend;
#include <asm/page_no.h>
#endif
+#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
+#define __pfn_to_phys(pfn) PFN_PHYS(pfn)
+
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)