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Date: Wed, 19 Jan 2022 13:22:26 +0500 From: Muhammad Usama Anjum <usama.anjum@...labora.com> To: Matthieu Baerts <matthieu.baerts@...sares.net>, Shuah Khan <shuah@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>, Darren Hart <dvhart@...radead.org>, Davidlohr Bueso <dave@...olabs.net>, André Almeida <andrealmeid@...labora.com>, Paolo Bonzini <pbonzini@...hat.com>, Mickaël Salaün <mic@...ikod.net>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Mat Martineau <mathew.j.martineau@...ux.intel.com>, Andrew Morton <akpm@...ux-foundation.org>, chiminghao <chi.minghao@....com.cn>, "open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>, "open list:KERNEL VIRTUAL MACHINE (KVM)" <kvm@...r.kernel.org>, "open list:LANDLOCK SECURITY MODULE" <linux-security-module@...r.kernel.org>, "open list:NETWORKING [GENERAL]" <netdev@...r.kernel.org>, "open list:NETWORKING [MPTCP]" <mptcp@...ts.linux.dev>, "open list:MEMORY MANAGEMENT" <linux-mm@...ck.org> Cc: usama.anjum@...labora.com, kernel@...labora.com Subject: Re: [PATCH 08/10] selftests: mptcp: Add the uapi headers include variable Hi Matthieu, Thank you for putting details below. On 1/19/22 2:47 AM, Matthieu Baerts wrote: > Hi Muhammad, > > On 18/01/2022 12:29, Muhammad Usama Anjum wrote: >> Out of tree build of this test fails if relative path of the output >> directory is specified. Remove the un-needed include paths and use >> KHDR_INCLUDES to correctly reach the headers. > > Thank you for looking at that! > >> Signed-off-by: Muhammad Usama Anjum <usama.anjum@...labora.com> >> --- >> tools/testing/selftests/net/mptcp/Makefile | 3 +-- >> 1 file changed, 1 insertion(+), 2 deletions(-) >> >> diff --git a/tools/testing/selftests/net/mptcp/Makefile b/tools/testing/selftests/net/mptcp/Makefile >> index 0356c4501c99..fed6866d3b73 100644 >> --- a/tools/testing/selftests/net/mptcp/Makefile >> +++ b/tools/testing/selftests/net/mptcp/Makefile >> @@ -1,9 +1,8 @@ >> # SPDX-License-Identifier: GPL-2.0 >> >> -top_srcdir = ../../../../.. > > Removing this line breaks our CI validating MPTCP selftests. That's > because this "top_srcdir" variable is needed in the "lib.mk" file which > is included at the end of this Makefile. > > But that's maybe a misuse from our side. Indeed to avoid compiling > binaries and more from the VM, our CI does that as a preparation job > before starting the VM and run MPTCP selftests: > > $ make O=(...) INSTALL_HDR_PATH=(...)/kselftest/usr headers_install > $ make O=(...) -C tools/testing/selftests/net/mptcp > > From the VM, we re-use the same source directory and we can start > individual tests without having to compile anything else: > > $ cd tools/testing/selftests/net/mptcp > $ ./mptcp_connect.sh > > We want to do that because some scripts are launched multiple times with > different parameters. > > With your modifications, we can drop the headers_install instruction but > we need to pass new parameters to the last 'make' command: > > $ make O=(...) top_srcdir=../../../../.. \ > KHDR_INCLUDES=-I(...)/usr/include \ > -C tools/testing/selftests/net/mptcp > > Or is there a better way to do that? > Can we leave the definition of "top_srcdir" like it was or did we miss > something else? > It seems like I've missed this use cases where people can build only one individual test. It is not my intention to break individual test builds. I shouldn't be fixing one thing while breaking something else. I'll update these patches such that individual tests are also build-able. For this to happen, I'll just add $(KHDR_INCLUDES) to the build flags while leaving everything else intact. I'll send a V2. >> KSFT_KHDR_INSTALL := 1 >> >> -CFLAGS = -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include >> +CFLAGS = -Wall -Wl,--no-as-needed -O2 -g $(KHDR_INCLUDES) >> >> TEST_PROGS := mptcp_connect.sh pm_netlink.sh mptcp_join.sh diag.sh \ >> simult_flows.sh mptcp_sockopt.sh > > Note: I see there is a very long recipients list. If my issue is not > directly due to your modifications, we can probably continue the > discussion with a restricted audience. > > Cheers, > Matt
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