Hi Michael,
On Tue, Jan 06, 2015 at 03:43:40PM +0000, Michael S. Tsirkin wrote:
> 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 <[email protected]>
>
> Acked-by: Will Deacon <[email protected]>
> ---
Did you want us to take this via the arm64 tree, or are you planning to
merge it via another route?
Will
> 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..9a2069b 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
>
>
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