From: mst@redhat.com (Michael S. Tsirkin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH repost 03/16] arm64/uaccess: fix sparse errors
Date: Thu, 25 Dec 2014 11:28:41 +0200 [thread overview]
Message-ID: <1419499661-8566-4-git-send-email-mst@redhat.com> (raw)
In-Reply-To: <1419499661-8566-1-git-send-email-mst@redhat.com>
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>
---
arch/arm64/include/asm/uaccess.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 3bf8f4e..8d66bcf 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) \
--
MST
next parent reply other threads:[~2014-12-25 9:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1419499661-8566-1-git-send-email-mst@redhat.com>
2014-12-25 9:28 ` Michael S. Tsirkin [this message]
2015-01-23 15:33 ` [PATCH repost 03/16] arm64/uaccess: fix sparse errors Catalin Marinas
2015-01-23 15:42 ` Will Deacon
2015-01-23 16:35 ` Catalin Marinas
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