[AVR32] Fix compile error with gcc 4.1
gcc 4.1 doesn't seem to like const variables as inline assembly
outputs. Drop support for reading 64-bit values using get_user() so
that we can use an unsigned long to hold the result regardless of the
actual size. This should be safe since many architectures, including
i386, doesn't support reading 64-bit values with get_user().
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
diff --git a/include/asm-avr32/uaccess.h b/include/asm-avr32/uaccess.h
index 74a679e9..ed09239 100644
--- a/include/asm-avr32/uaccess.h
+++ b/include/asm-avr32/uaccess.h
@@ -181,24 +181,23 @@
#define __get_user_nocheck(x, ptr, size) \
({ \
- typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0; \
+ unsigned long __gu_val = 0; \
int __gu_err = 0; \
\
switch (size) { \
case 1: __get_user_asm("ub", __gu_val, ptr, __gu_err); break; \
case 2: __get_user_asm("uh", __gu_val, ptr, __gu_err); break; \
case 4: __get_user_asm("w", __gu_val, ptr, __gu_err); break; \
- case 8: __get_user_asm("d", __gu_val, ptr, __gu_err); break; \
default: __gu_err = __get_user_bad(); break; \
} \
\
- x = __gu_val; \
+ x = (typeof(*(ptr)))__gu_val; \
__gu_err; \
})
#define __get_user_check(x, ptr, size) \
({ \
- typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0; \
+ unsigned long __gu_val = 0; \
const typeof(*(ptr)) __user * __gu_addr = (ptr); \
int __gu_err = 0; \
\
@@ -216,10 +215,6 @@
__get_user_asm("w", __gu_val, __gu_addr, \
__gu_err); \
break; \
- case 8: \
- __get_user_asm("d", __gu_val, __gu_addr, \
- __gu_err); \
- break; \
default: \
__gu_err = __get_user_bad(); \
break; \
@@ -227,7 +222,7 @@
} else { \
__gu_err = -EFAULT; \
} \
- x = __gu_val; \
+ x = (typeof(*(ptr)))__gu_val; \
__gu_err; \
})