From: Michael S. Tsirkin <mst@redhat.com>
Date: Thu, 11 Dec 2014 23:56:04 +0000 (+0200)
Subject: arm64/uaccess: fix sparse errors
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=58fff51784cb5e1bcc06a1417be26eec4288507c;p=linux-beck.git

arm64/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>
Acked-by: Will Deacon <will.deacon@arm.com>
---

diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 3bf8f4e99a51..9a2069bbc00d 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -147,7 +147,7 @@ do {									\
 	default:							\
 		BUILD_BUG();						\
 	}								\
-	(x) = (__typeof__(*(ptr)))__gu_val;				\
+	(x) = (__force __typeof__(*(ptr)))__gu_val;			\
 } while (0)
 
 #define __get_user(x, ptr)						\