linux-kernel - [PATCH] arch: xtensa: include: asm: define '_PAGE_CHG

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Message-ID: <51C554F4.8060704@asianux.com>
Date:	Sat, 22 Jun 2013 15:40:36 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	chris@...kel.net, Max Filippov <jcmvbkbc@...il.com>
CC:	linux-xtensa@...ux-xtensa.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux-Arch <linux-arch@...r.kernel.org>
Subject: [PATCH] arch: xtensa: include: asm: define '_PAGE_CHG_MASK' when
 'NOMMU'


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 <gang.chen@...anux.com>
---
 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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