[PATCH] unify pfn_to_page take 2 [14/25] m68knommu funcs

[KAMEZAWA Hiroyuki]

m68knommu uses virtual address to get page struct..
Because phys_to_virt(addr) == addr now, it looks to be able to use
generic one, by defining ARCH_PFN_OFFSET=PAGE_OFFSET >> PAGE_SHIFT.

But I remaind it as it is.

Signed-Off-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

Index: test-layout-free-zone/arch/m68knommu/Kconfig
===================================================================
--- test-layout-free-zone.orig/arch/m68knommu/Kconfig
+++ test-layout-free-zone/arch/m68knommu/Kconfig
@@ -29,6 +29,10 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y

+config ARCH_HAS_PFN_TO_PAGE
+	bool
+	default y
+
 source "init/Kconfig"

 menu "Processor type and features"

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