From patchwork Tue Sep 29 11:00:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 290863 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C14FEC4741F for ; Tue, 29 Sep 2020 12:21:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7219F20848 for ; Tue, 29 Sep 2020 12:21:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601382087; bh=R+FcVsk4idUsCIqnF7xfPVNJV0Y4c5vyctAqVvnmUIM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=r1E4btC2md5r825EH9RJNFq8d6yqx6C8XqyIG7Wcs7Sn+o1rowVmugt9DNjeSJTOT RrqStjNodkaN/wOhd2PlrA8kYWorJODX0Nv3FWFY3bT8mqbmPfbd8UC/u3k9YNQmJh BWFp0GYxwxQy3dm1Nm73XMe+Bdn5RH9qhkAiGMUg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729764AbgI2Lf2 (ORCPT ); Tue, 29 Sep 2020 07:35:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:50012 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729782AbgI2LfK (ORCPT ); Tue, 29 Sep 2020 07:35:10 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8618C23D20; Tue, 29 Sep 2020 11:29:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601378954; bh=R+FcVsk4idUsCIqnF7xfPVNJV0Y4c5vyctAqVvnmUIM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sc+JawjX6kEzRYEYXYhH09HTjTTAWR4IFha6mP15M2C6AQUs96EOOtPWe2ARvDDmp THJzCuBhou+Lo+FAZDRtTA4Nyl+SsvEkNuXz2e+IEVPHB3KCsCZF0aNR7egoBmGN/l 7kx3IwXHb2Pzk+ZG7OHAfzFrDhfIZgzeoG3KIN/M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andy Lutomirski , Thomas Gleixner , Sasha Levin Subject: [PATCH 4.19 199/245] selftests/x86/syscall_nt: Clear weird flags after each test Date: Tue, 29 Sep 2020 13:00:50 +0200 Message-Id: <20200929105956.658123534@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200929105946.978650816@linuxfoundation.org> References: <20200929105946.978650816@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Andy Lutomirski [ Upstream commit a61fa2799ef9bf6c4f54cf7295036577cececc72 ] Clear the weird flags before logging to improve strace output -- logging results while, say, TF is set does no one any favors. Signed-off-by: Andy Lutomirski Signed-off-by: Thomas Gleixner Link: https://lkml.kernel.org/r/907bfa5a42d4475b8245e18b67a04b13ca51ffdb.1593191971.git.luto@kernel.org Signed-off-by: Sasha Levin --- tools/testing/selftests/x86/syscall_nt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/x86/syscall_nt.c b/tools/testing/selftests/x86/syscall_nt.c index 43fcab367fb0a..74e6b3fc2d09e 100644 --- a/tools/testing/selftests/x86/syscall_nt.c +++ b/tools/testing/selftests/x86/syscall_nt.c @@ -67,6 +67,7 @@ static void do_it(unsigned long extraflags) set_eflags(get_eflags() | extraflags); syscall(SYS_getpid); flags = get_eflags(); + set_eflags(X86_EFLAGS_IF | X86_EFLAGS_FIXED); if ((flags & extraflags) == extraflags) { printf("[OK]\tThe syscall worked and flags are still set\n"); } else {