Hi Günther,
Thanks for reporting!
On Sat, Jan 9, 2016 at 10:38 PM, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
__pfn_to_phys() was introduced with commit 8b79eb6f5b53e ("libnvdimm, pfn,
Was it?
pmem: allocate memmap array in persistent memory") but not declared for
m68k in nommu configurations. This results in the following build error.
It used to fail on m68k with mmu, too, cfr. (badly-described) commit
7a6101c076fa6ae6 ("m68k: fix build failure").
mm/page_alloc.c: In function 'memmap_init_zone':
mm/page_alloc.c:4610:9: error: implicit declaration of function '__pfn_to_phys'
Fixes: 8b79eb6f5b53e ("libnvdimm, pfn, pmem: allocate memmap array in persistent memory")
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
arch/m68k/include/asm/page_no.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h
index fa7f32d9836b..f389f575b93f 100644
--- a/arch/m68k/include/asm/page_no.h
+++ b/arch/m68k/include/asm/page_no.h
@@ -19,6 +19,8 @@ extern unsigned long memory_end;
#define __pa(vaddr) ((unsigned long)(vaddr))
#define __va(paddr) ((void *)(paddr))
+#define __pfn_to_phys(pfn) PFN_PHYS(pfn)
+
#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
To avoid adding the same line(s) to page_mm.h and page_no.h, I'm gonna
apply Sudip's patch to page.h instead of page_mm.h.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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