asm-generic: add dummy pgprot_noncached()

Most architectures now provide a pgprot_noncached(), the
remaining ones can simply use an dummy default implementation,
except for cris and xtensa, which should override the
default appropriately.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Magnus Damm <magnus.damm@gmail.com>

diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index e410f602cab1b31fdd71681708d17049181026d5..e2bd73e8f9c0b4db75755d1e4f0aadaaa0e20c2a 100644 (file)
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -129,6 +129,10 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres
 #define move_pte(pte, prot, old_addr, new_addr)        (pte)
 #endif
 
+#ifndef pgprot_noncached
+#define pgprot_noncached(prot) (prot)
+#endif
+
 #ifndef pgprot_writecombine
 #define pgprot_writecombine pgprot_noncached
 #endif