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Message-ID: <1420558883-10131-8-git-send-email-mst@redhat.com>
Date: Tue, 6 Jan 2015 17:43:53 +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,
Tony Luck <tony.luck@...el.com>,
Fenghua Yu <fenghua.yu@...el.com>,
Thierry Reding <treding@...dia.com>, linux-ia64@...r.kernel.org
Subject: [PATCH v2 07/40] ia64/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/ia64/include/asm/uaccess.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index 103bedc..967c312 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -197,7 +197,7 @@ extern void __get_user_unknown (void);
case 8: __get_user_size(__gu_val, __gu_ptr, 8, __gu_err); break; \
default: __get_user_unknown(); break; \
} \
- (x) = (__typeof__(*(__gu_ptr))) __gu_val; \
+ (x) = (__force __typeof__(*(__gu_ptr))) __gu_val; \
__gu_err; \
})
--
MST
--
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