linux-kernel - [PATCH v2 04/76] asm-generic headers: uaccess.h to conditionally define segment

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Date:	Fri, 18 Jan 2013 17:54:18 +0530
From:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
To:	<linux-arch@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:	<arnd@...db.de>, Vineet Gupta <Vineet.Gupta1@...opsys.com>
Subject: [PATCH v2 04/76] asm-generic headers: uaccess.h to conditionally define segment_eq()

This is because mm_segment_t is exported by arch code, while seqment_eq
assumes it will have .seg element.

Acked-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Vineet Gupta <vgupta@...opsys.com>
---
 include/asm-generic/uaccess.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index 9788568..5f6ee61 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -7,7 +7,6 @@
  * address space, e.g. all NOMMU machines.
  */
 #include <linux/sched.h>
-#include <linux/mm.h>
 #include <linux/string.h>
 
 #include <asm/segment.h>
@@ -32,7 +31,9 @@ static inline void set_fs(mm_segment_t fs)
 }
 #endif
 
+#ifndef segment_eq
 #define segment_eq(a, b) ((a).seg == (b).seg)
+#endif
 
 #define VERIFY_READ	0
 #define VERIFY_WRITE	1
-- 
1.7.4.1

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