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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>
hifive-unleashed-5.1
Michael S. Tsirkin 2014-12-14 18:53:10 +02:00 committed by Chris Zankel
parent 2cb54e8493
commit 4255a8e199
1 changed files with 2 additions and 2 deletions
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4
arch/xtensa/include/asm/uaccess.h
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@ -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; \
})