linux-kernel - [PATCH 05/11] metag: use generic fixmap.h

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Date:	Tue, 12 Nov 2013 08:22:19 -0500
From:	Mark Salter <msalter@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Mark Salter <msalter@...hat.com>,
	James Hogan <james.hogan@...tec.com>,
	linux-metag@...r.kernel.org
Subject: [PATCH 05/11] metag: use generic fixmap.h

Signed-off-by: Mark Salter <msalter@...hat.com>
CC: James Hogan <james.hogan@...tec.com>
CC: linux-metag@...r.kernel.org
---
 arch/metag/include/asm/fixmap.h | 32 +-------------------------------
 1 file changed, 1 insertion(+), 31 deletions(-)

diff --git a/arch/metag/include/asm/fixmap.h b/arch/metag/include/asm/fixmap.h
index 3331275..af621b0 100644
--- a/arch/metag/include/asm/fixmap.h
+++ b/arch/metag/include/asm/fixmap.h
@@ -51,37 +51,7 @@ enum fixed_addresses {
 #define FIXADDR_SIZE	(__end_of_fixed_addresses << PAGE_SHIFT)
 #define FIXADDR_START	((FIXADDR_TOP - FIXADDR_SIZE) & PMD_MASK)
 
-#define __fix_to_virt(x)	(FIXADDR_TOP - ((x) << PAGE_SHIFT))
-#define __virt_to_fix(x)	((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
-
-extern void __this_fixmap_does_not_exist(void);
-/*
- * 'index to address' translation. If anyone tries to use the idx
- * directly without tranlation, we catch the bug with a NULL-deference
- * kernel oops. Illegal ranges of incoming indices are caught too.
- */
-static inline unsigned long fix_to_virt(const unsigned int idx)
-{
-	/*
-	 * this branch gets completely eliminated after inlining,
-	 * except when someone tries to use fixaddr indices in an
-	 * illegal way. (such as mixing up address types or using
-	 * out-of-range indices).
-	 *
-	 * If it doesn't get removed, the linker will complain
-	 * loudly with a reasonably clear error message..
-	 */
-	if (idx >= __end_of_fixed_addresses)
-		__this_fixmap_does_not_exist();
-
-	return __fix_to_virt(idx);
-}
-
-static inline unsigned long virt_to_fix(const unsigned long vaddr)
-{
-	BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
-	return __virt_to_fix(vaddr);
-}
+#include <asm-generic/fixmap.h>
 
 #define kmap_get_fixmap_pte(vaddr) \
 	pte_offset_kernel( \
-- 
1.8.3.1

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