nios2/uaccess: fix sparse errors

virtio wants to read bitwise types from userspace using get_user.  At the
moment this triggers sparse errors, since the value is passed through an
integer.

Fix that up using __force.

Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Ley Foon Tan <lftan@altera.com>
This commit is contained in:
Ley Foon Tan 2014-12-17 13:53:41 +08:00
parent d1e4ef0424
commit f1f2eac912

View file

@ -168,7 +168,7 @@ do { \
const __typeof__(*(ptr)) __user *__gu_ptr = (ptr); \
unsigned long __gu_val; \
__get_user_common(__gu_val, sizeof(*(ptr)), __gu_ptr, __gu_err);\
(x) = (__typeof__(x))__gu_val; \
(x) = (__force __typeof__(x))__gu_val; \
__gu_err; \
})
@ -180,7 +180,7 @@ do { \
if (access_ok(VERIFY_READ, __gu_ptr, sizeof(*__gu_ptr))) \
__get_user_common(__gu_val, sizeof(*__gu_ptr), \
__gu_ptr, __gu_err); \
(x) = (__typeof__(x))__gu_val; \
(x) = (__force __typeof__(x))__gu_val; \
__gu_err; \
})