Define '_PAGE_CHG_MASK' when 'NOMMU' to pass compiling.
The related make:
make ARCH=xtensa allmodconfig
make ARCH=xtensa menuconfig
set "xtensa-linux-gnu-" for "Cross compilier tool prefix"
select "s6000" for "Processor type and features" -> "Xtensa Processor"
make ARCH=xtensa EXTRA_CFLAGS=-W
The related error:
arch/xtensa/include/asm/pgtable.h: In function ‘pte_modify’:
arch/xtensa/include/asm/pgtable.h:289:9: error: ‘_PAGE_CHG_MASK’ undeclared
(first use in this function)
Signed-off-by: Chen Gang <[email protected]>
---
arch/xtensa/include/asm/pgtable.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/xtensa/include/asm/pgtable.h
b/arch/xtensa/include/asm/pgtable.h
index 7e09f70..a28c49b 100644
--- a/arch/xtensa/include/asm/pgtable.h
+++ b/arch/xtensa/include/asm/pgtable.h
@@ -149,9 +149,10 @@
#define _PAGE_DIRTY (1<<7) /* software: page dirty */
#define _PAGE_ACCESSED (1<<8) /* software: page accessed (read) */
+#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
+
#ifdef CONFIG_MMU
-#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
#define _PAGE_PRESENT (_PAGE_HW_VALID | _PAGE_CA_WB | _PAGE_ACCESSED)
#define PAGE_NONE __pgprot(_PAGE_NONE | _PAGE_USER)
--
1.7.7.6
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