Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752296AbaLNQwp (ORCPT ); Sun, 14 Dec 2014 11:52:45 -0500 Received: from mx1.redhat.com ([209.132.183.28]:32931 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751004AbaLNQwl (ORCPT ); Sun, 14 Dec 2014 11:52:41 -0500 Date: Sun, 14 Dec 2014 18:52:32 +0200 From: "Michael S. Tsirkin" To: linux-kernel@vger.kernel.org Cc: Arnd Bergmann , linux-arch@vger.kernel.org Subject: [PATCH 08/18] m32r/uaccess: fix sparse errors Message-ID: <1418575877-21488-9-git-send-email-mst@redhat.com> References: <1418575877-21488-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1418575877-21488-1-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/m32r/include/asm/uaccess.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/m32r/include/asm/uaccess.h b/arch/m32r/include/asm/uaccess.h index 84fe7ba..ee4a212 100644 --- a/arch/m32r/include/asm/uaccess.h +++ b/arch/m32r/include/asm/uaccess.h @@ -218,7 +218,7 @@ extern int fixup_exception(struct pt_regs *regs); unsigned long __gu_val; \ might_fault(); \ __get_user_size(__gu_val,(ptr),(size),__gu_err); \ - (x) = (__typeof__(*(ptr)))__gu_val; \ + (x) = (__force __typeof__(*(ptr)))__gu_val; \ __gu_err; \ }) @@ -230,7 +230,7 @@ extern int fixup_exception(struct pt_regs *regs); might_fault(); \ if (access_ok(VERIFY_READ,__gu_addr,size)) \ __get_user_size(__gu_val,__gu_addr,(size),__gu_err); \ - (x) = (__typeof__(*(ptr)))__gu_val; \ + (x) = (__force __typeof__(*(ptr)))__gu_val; \ __gu_err; \ }) -- MST -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/