From patchwork Tue Jan 18 11:29:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Muhammad Usama Anjum X-Patchwork-Id: 12716214 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBEF8C433EF for ; Tue, 18 Jan 2022 11:32:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241002AbiARLc2 (ORCPT ); Tue, 18 Jan 2022 06:32:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240975AbiARLcK (ORCPT ); Tue, 18 Jan 2022 06:32:10 -0500 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F46BC061753; Tue, 18 Jan 2022 03:32:10 -0800 (PST) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: usama.anjum) with ESMTPSA id C6A711F43ECC DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1642505529; bh=ZgAzpMGfSGdCPLE/fHhKIS82NhtSqBUPZr7WBPwkwXI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Nx7JWdnsWkWk4grE31vvXpfCXjD8o1vsdwy0POm/s1KLrNoeRG1+DUE2oajaFDksE YzadKDKOZi3qe1WBwuczTjfvKccLBARXGJAwasHXtyF9UpiCC85q2oa5Ss1697xmGJ 3Wxf3mO2riFUnVuBWnuf3yAkPKkfWSbDxk95cI68f3bVuonhtAsYBWBab2s1FWXs9r CXijweMt91uQIgihdL4CTkPE2z6sIJQ559xU62dh+RofzTFBMAMy9LWj8AmtlW3T5U UC6S3dV6zkyvblf5Nf9oc7RGTxDVpPFdf/ikPDX4fcvu4VGQtk5J7EZLDZcyeH2IRE QMWeGlcXUFUSg== From: Muhammad Usama Anjum To: Shuah Khan , Thomas Gleixner , Ingo Molnar , Peter Zijlstra , Darren Hart , Davidlohr Bueso , =?utf-8?q?Andr=C3=A9_Almeida?= , Paolo Bonzini , =?utf-8?q?Micka=C3=ABl_Sala=C3=BCn?= , "David S. Miller" , Jakub Kicinski , Mat Martineau , Matthieu Baerts , Andrew Morton , chiminghao , linux-kselftest@vger.kernel.org (open list:KERNEL SELFTEST FRAMEWORK), linux-kernel@vger.kernel.org (open list), kvm@vger.kernel.org (open list:KERNEL VIRTUAL MACHINE (KVM)), linux-security-module@vger.kernel.org (open list:LANDLOCK SECURITY MODULE), netdev@vger.kernel.org (open list:NETWORKING [GENERAL]), mptcp@lists.linux.dev (open list:NETWORKING [MPTCP]), linux-mm@kvack.org (open list:MEMORY MANAGEMENT) Cc: Muhammad Usama Anjum , kernel@collabora.com Subject: [PATCH 10/10] selftests: vm: remove dependecy from internal kernel macros Date: Tue, 18 Jan 2022 16:29:09 +0500 Message-Id: <20220118112909.1885705-11-usama.anjum@collabora.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220118112909.1885705-1-usama.anjum@collabora.com> References: <20220118112909.1885705-1-usama.anjum@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The defination of swap() is used from kernel's internal header when this test is built in source tree. The build fails when this test is built out of source tree as defination of swap() isn't found. Selftests shouldn't depend on kernel's internal header files. They can only depend on uapi header files. Add the defination of swap() to fix the build error: gcc -Wall -I/linux_mainline2/build/usr/include -no-pie userfaultfd.c -lrt -lpthread -o /linux_mainline2/build/kselftest/vm/userfaultfd userfaultfd.c: In function ‘userfaultfd_stress’: userfaultfd.c:1530:3: warning: implicit declaration of function ‘swap’; did you mean ‘swab’? [-Wimplicit-function-declaration] 1530 | swap(area_src, area_dst); | ^~~~ | swab /usr/bin/ld: /tmp/cclUUH7V.o: in function `userfaultfd_stress': userfaultfd.c:(.text+0x4d64): undefined reference to `swap' /usr/bin/ld: userfaultfd.c:(.text+0x4d82): undefined reference to `swap' collect2: error: ld returned 1 exit status Fixes: 2c769ed7137a ("tools/testing/selftests/vm/userfaultfd.c: use swap() to make code cleaner") Signed-off-by: Muhammad Usama Anjum --- tools/testing/selftests/vm/userfaultfd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index d3fd24f9fae8..d2480ab93037 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -119,6 +119,9 @@ struct uffd_stats { ~(unsigned long)(sizeof(unsigned long long) \ - 1))) +#define swap(a, b) \ + do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0) + const char *examples = "# Run anonymous memory test on 100MiB region with 99999 bounces:\n" "./userfaultfd anon 100 99999\n\n"