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List:       linux-parisc
Subject:    [PATCH v2 12/40] parisc/uaccess: fix sparse errors
From:       "Michael S. Tsirkin" <mst () redhat ! com>
Date:       2015-01-06 15:44:10
Message-ID: 1420558883-10131-13-git-send-email-mst () redhat ! com
[Download RAW message or body]

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>
Acked-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/uaccess.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index a5cb070..6c79311 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -104,7 +104,7 @@ struct exception_data {
 	    }                                           \
 	}                                               \
 							\
-	(x) = (__typeof__(*(ptr))) __gu_val;            \
+	(x) = (__force __typeof__(*(ptr))) __gu_val;	\
 	__gu_err;                                       \
 })
 
-- 
MST

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