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Message-ID: <1420558883-10131-12-git-send-email-mst@redhat.com>
Date: Tue, 6 Jan 2015 17:44:06 +0200
From: "Michael S. Tsirkin" <mst@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Arnd Bergmann <arnd@...db.de>, linux-arch@...r.kernel.org,
Jonas Bonn <jonas@...thpole.se>, linux@...nrisc.net
Subject: [PATCH v2 11/40] openrisc/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@...hat.com>
---
arch/openrisc/include/asm/uaccess.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h
index ab2e7a1..a6bd07c 100644
--- a/arch/openrisc/include/asm/uaccess.h
+++ b/arch/openrisc/include/asm/uaccess.h
@@ -192,7 +192,7 @@ struct __large_struct {
({ \
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; \
})
@@ -202,7 +202,7 @@ struct __large_struct {
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; \
})
--
MST
--
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