From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755553AbbAFPoB (ORCPT ); Tue, 6 Jan 2015 10:44:01 -0500 Received: from mx1.redhat.com ([209.132.183.28]:37592 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755437AbbAFPn7 (ORCPT ); Tue, 6 Jan 2015 10:43:59 -0500 Date: Tue, 6 Jan 2015 17:43:34 +0200 From: "Michael S. Tsirkin" To: linux-kernel@vger.kernel.org Cc: Arnd Bergmann , linux-arch@vger.kernel.org, Richard Henderson , Ivan Kokshaysky , Matt Turner , linux-alpha@vger.kernel.org Subject: [PATCH v2 02/40] alpha/uaccess: fix sparse errors Message-ID: <1420558883-10131-3-git-send-email-mst@redhat.com> References: <1420558883-10131-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1420558883-10131-1-git-send-email-mst@redhat.com> X-Mutt-Fcc: =sent Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- arch/alpha/include/asm/uaccess.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h index 766fdfd..a234de7 100644 --- a/arch/alpha/include/asm/uaccess.h +++ b/arch/alpha/include/asm/uaccess.h @@ -96,7 +96,7 @@ extern void __get_user_unknown(void); case 8: __get_user_64(ptr); break; \ default: __get_user_unknown(); break; \ } \ - (x) = (__typeof__(*(ptr))) __gu_val; \ + (x) = (__force __typeof__(*(ptr))) __gu_val; \ __gu_err; \ }) @@ -115,7 +115,7 @@ extern void __get_user_unknown(void); default: __get_user_unknown(); break; \ } \ } \ - (x) = (__typeof__(*(ptr))) __gu_val; \ + (x) = (__force __typeof__(*(ptr))) __gu_val; \ __gu_err; \ }) -- MST