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authorHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>2009-01-29 22:49:18 +0300
committerIngo Molnar <mingo@elte.hu>2009-01-29 23:29:02 +0300
commit019a1369667c3978f9644982ebe6d261dd2bbc40 (patch)
tree14f978e6de4f01be4339354023b3725f0263cc7a /arch/x86/include/asm/uaccess.h
parent3b4b75700a245d0d48fc52a4d2f67d3155812aba (diff)
downloadlinux-019a1369667c3978f9644982ebe6d261dd2bbc40.tar.xz
x86: uaccess: fix compilation error on CONFIG_M386
In case of !CONFIG_X86_WP_WORKS_OK, __put_user_size_ex() is not defined. Add macros for !CONFIG_X86_WP_WORKS_OK case. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/uaccess.h')
-rw-r--r--arch/x86/include/asm/uaccess.h22
1 files changed, 20 insertions, 2 deletions
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 0ec6de4bcb0b..b9a24155f7af 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -525,8 +525,6 @@ struct __large_struct { unsigned long buf[100]; };
*/
#define get_user_try uaccess_try
#define get_user_catch(err) uaccess_catch(err)
-#define put_user_try uaccess_try
-#define put_user_catch(err) uaccess_catch(err)
#define get_user_ex(x, ptr) do { \
unsigned long __gue_val; \
@@ -534,9 +532,29 @@ struct __large_struct { unsigned long buf[100]; };
(x) = (__force __typeof__(*(ptr)))__gue_val; \
} while (0)
+#ifdef CONFIG_X86_WP_WORKS_OK
+
+#define put_user_try uaccess_try
+#define put_user_catch(err) uaccess_catch(err)
+
#define put_user_ex(x, ptr) \
__put_user_size_ex((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
+#else /* !CONFIG_X86_WP_WORKS_OK */
+
+#define put_user_try do { \
+ int __uaccess_err = 0;
+
+#define put_user_catch(err) \
+ (err) |= __uaccess_err; \
+} while (0)
+
+#define put_user_ex(x, ptr) do { \
+ __uaccess_err |= __put_user(x, ptr); \
+} while (0)
+
+#endif /* CONFIG_X86_WP_WORKS_OK */
+
/*
* movsl can be slow when source and dest are not both 8-byte aligned
*/