Commit d9b8d0da authored by Ralf Baechle's avatar Ralf Baechle
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[MIPS] Drop 0 definition for kern_addr_valid

kern_addr_valid is currently only being used in kmem_ptr_validate which
is making some vague attempt at verfying the validity of an address.
Only IA-64, PARISC and x86-64 actually make some actual effort to verify
the validity of the pointer.  Most architecture definitions of
kern_addr_valid() just define it as 1; the Alpha and CONFIG_DISCONTIGMEM
on i386 and MIPS even as 0; the 0-definition will result in
kmem_ptr_validate always failing which in turn will cause d_validate to
always fail.  d_validate's only two users are smbfs and ncpfs, so the
0 definition ended breaking those ...

Signed-off-by: default avatarRalf Baechle <>
parent e53639d8
......@@ -14,9 +14,6 @@
#define kvaddr_to_nid(kvaddr) pa_to_nid(__pa(kvaddr))
#define pfn_to_nid(pfn) pa_to_nid((pfn) << PAGE_SHIFT)
/* XXX: FIXME -- wli */
#define kern_addr_valid(addr) (0)
#endif /* _ASM_MMZONE_H_ */
......@@ -379,9 +379,7 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
__update_cache(vma, address, pte);
#define kern_addr_valid(addr) (1)
extern int remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot);
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