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| author | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2007-04-27 14:21:47 +0200 |
|---|---|---|
| committer | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2007-04-27 14:21:47 +0200 |
| commit | 8224ca195874525533665bbcd23b6da1e575aa4d (patch) | |
| tree | 2d3e170f3fd58c2ec39d33136059eaf12a94e53f /include/asm-avr32 | |
| parent | a4022b0d6005b117a985cec64559e048981a4244 (diff) | |
| download | lwn-8224ca195874525533665bbcd23b6da1e575aa4d.tar.gz lwn-8224ca195874525533665bbcd23b6da1e575aa4d.zip | |
[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>
Diffstat (limited to 'include/asm-avr32')
| -rw-r--r-- | include/asm-avr32/uaccess.h | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/include/asm-avr32/uaccess.h b/include/asm-avr32/uaccess.h index 74a679e9098c..ed092395215e 100644 --- a/include/asm-avr32/uaccess.h +++ b/include/asm-avr32/uaccess.h @@ -181,24 +181,23 @@ extern int __put_user_bad(void); #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 @@ extern int __put_user_bad(void); __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 @@ extern int __put_user_bad(void); } else { \ __gu_err = -EFAULT; \ } \ - x = __gu_val; \ + x = (typeof(*(ptr)))__gu_val; \ __gu_err; \ }) |