xtensa/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.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Chris Zankel <chris@zankel.net>

diff --git a/arch/xtensa/include/asm/uaccess.h b/arch/xtensa/include/asm/uaccess.h
index c7211e7..876eb38 100644 (file)
--- a/arch/xtensa/include/asm/uaccess.h
+++ b/arch/xtensa/include/asm/uaccess.h
@@ -320,7 +320,7 @@ __asm__ __volatile__(                                       \
 ({                                                             \
        long __gu_err, __gu_val;                                \
        __get_user_size(__gu_val,(ptr),(size),__gu_err);        \
-       (x) = (__typeof__(*(ptr)))__gu_val;                     \
+       (x) = (__force __typeof__(*(ptr)))__gu_val;                     \
        __gu_err;                                               \
 })
 
@@ -330,7 +330,7 @@ __asm__ __volatile__(                                       \
        const __typeof__(*(ptr)) *__gu_addr = (ptr);                    \
        if (access_ok(VERIFY_READ,__gu_addr,size))                      \
                __get_user_size(__gu_val,__gu_addr,(size),__gu_err);    \
-       (x) = (__typeof__(*(ptr)))__gu_val;                             \
+       (x) = (__force __typeof__(*(ptr)))__gu_val;                             \
        __gu_err;                                                       \
 })