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Message-Id: <E1IE6JP-0005Oy-R8@ZenIV.linux.org.uk>
Date: Thu, 26 Jul 2007 17:35:39 +0100
From: Al Viro <viro@....linux.org.uk>
To: torvalds@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org, ak@...e.de
Subject: [PATCH] amd64: fix get_user() on bitwise
We really need force-cast when converting to final result type;
unsigned long can be silently converted to integer types and
to pointers, but not to bitwise.
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
include/asm-x86_64/uaccess.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h
index 9df30b9..f4ce876 100644
--- a/include/asm-x86_64/uaccess.h
+++ b/include/asm-x86_64/uaccess.h
@@ -100,7 +100,7 @@ struct exception_table_entry
case 8: __get_user_x(8,__ret_gu,__val_gu,ptr); break; \
default: __get_user_bad(); break; \
} \
- (x) = (typeof(*(ptr)))__val_gu; \
+ (x) = (__force typeof(*(ptr)))__val_gu; \
__ret_gu; \
})
@@ -192,7 +192,7 @@ struct __large_struct { unsigned long buf[100]; };
int __gu_err; \
unsigned long __gu_val; \
__get_user_size(__gu_val,(ptr),(size),__gu_err); \
- (x) = (typeof(*(ptr)))__gu_val; \
+ (x) = (__force typeof(*(ptr)))__gu_val; \
__gu_err; \
})
--
1.5.3.GIT
-
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