From: Michael S. Tsirkin <mst@redhat.com>
Date: Thu, 11 Dec 2014 23:56:04 +0000 (+0200)
Subject: avr32/uaccess: fix sparse errors
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=7f0db2bec363bf1a4d6da2572491c634a34dcad8;p=deliverable%2Flinux.git

avr32/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: Hans-Christian Egtvedt <egtvedt@samfundet.no>
---

diff --git a/arch/avr32/include/asm/uaccess.h b/arch/avr32/include/asm/uaccess.h
index 245b2ee213c9..ccd07c456f9a 100644
--- a/arch/avr32/include/asm/uaccess.h
+++ b/arch/avr32/include/asm/uaccess.h
@@ -191,7 +191,7 @@ extern int __put_user_bad(void);
 	default: __gu_err = __get_user_bad(); break;			\
 	}								\
 									\
-	x = (typeof(*(ptr)))__gu_val;					\
+	x = (__force typeof(*(ptr)))__gu_val;				\
 	__gu_err;							\
 })
 
@@ -222,7 +222,7 @@ extern int __put_user_bad(void);
 	} else {							\
 		__gu_err = -EFAULT;					\
 	}								\
-	x = (typeof(*(ptr)))__gu_val;					\
+	x = (__force typeof(*(ptr)))__gu_val;				\
 	__gu_err;							\
 })