From mboxrd@z Thu Jan 1 00:00:00 1970 From: mst@redhat.com (Michael S. Tsirkin) Date: Tue, 6 Jan 2015 23:48:20 +0200 Subject: [PATCH v2 03/40] arm64/uaccess: fix sparse errors In-Reply-To: <20150106191432.GC32449@arm.com> References: <1420558883-10131-1-git-send-email-mst@redhat.com> <1420558883-10131-4-git-send-email-mst@redhat.com> <20150106191432.GC32449@arm.com> Message-ID: <20150106214820.GA18895@redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 > > > > Acked-by: Will Deacon > > --- > > 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 > > > >