On Tue, Jan 06, 2015 at 07:14:32PM +0000, Will Deacon wrote:
> 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
Up to you really: if you don't pick it up, Arnd said he'll merge
through his tree.
> > 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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