From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Borkmann Subject: Re: [PATCH 4/4] selftests/bpf: fix compiling errors Date: Tue, 27 Mar 2018 10:52:57 +0200 Message-ID: <2dd7c04a-eb10-e730-148e-3b04a18e9b44@iogearbox.net> References: <1522056208-4004-1-git-send-email-changbin.du@intel.com> <1522056208-4004-5-git-send-email-changbin.du@intel.com> <20180326145511.lzoi6wja6iht5lvq@ast-mbp.dhcp.thefacebook.com> <20180327022010.57u6rn73inbkrycn@intel.com> <20180327030229.txifuth2qmnjo3hy@ast-mbp> <20180327030613.hkp7hox3g4prnbsg@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: shuah@kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: "Du, Changbin" , Alexei Starovoitov Return-path: In-Reply-To: <20180327030613.hkp7hox3g4prnbsg@intel.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 03/27/2018 05:06 AM, Du, Changbin wrote: > On Mon, Mar 26, 2018 at 08:02:30PM -0700, Alexei Starovoitov wrote: >> On Tue, Mar 27, 2018 at 10:20:10AM +0800, Du, Changbin wrote: >>> On Mon, Mar 26, 2018 at 07:55:13AM -0700, Alexei Starovoitov wrote: >>>> On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote: >>>>> Signed-off-by: Changbin Du >>>>> --- >>>>> tools/testing/selftests/bpf/Makefile | 5 +++-- >>>>> 1 file changed, 3 insertions(+), 2 deletions(-) >>>>> >>>>> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile >>>>> index 5c43c18..dc0fdc8 100644 >>>>> --- a/tools/testing/selftests/bpf/Makefile >>>>> +++ b/tools/testing/selftests/bpf/Makefile >>>>> @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),) >>>>> GENFLAGS := -DHAVE_GENHDR >>>>> endif >>>>> >>>>> -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include >>>>> +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \ >>>>> + -I../../../include -I../../../../usr/include >>>>> LDLIBS += -lcap -lelf -lrt -lpthread >>>>> >>>>> # Order correspond to 'make run_tests' order >>>>> @@ -62,7 +63,7 @@ else >>>>> CPU ?= generic >>>>> endif >>>>> >>>>> -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \ >>>>> +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \ >>>>> -Wno-compare-distinct-pointer-types >>>> >>>> Nack. >>>> I suspect that will break the build for everyone else who's doing it in the directory >>>> itself instead of the outer one. >>> >>> This one? But I didn't see any problem. >> >> because the build was lucky and additional path ../../../../usr/include didn't point >> to a valid dir? Agree. > I am sorry but I don't understand why you mean *lucky*. Of cause, the path is valid. The problem is that this suddenly requires users to do a 'make headers_install' in order to populate usr/include/ directory in the first place. While it's annoying enough for BPF samples where this is needed, I absolutely don't want to introduce this for BPF kselftests. It's the wrong approach. Besides, in tools infra, there is a tools/arch/*/include/uapi/asm/bitsperlong.h header copy already, so we really need to use that instead. Please adapt your patch accordingly and respin. Please also Cc us and netdev@vger.kernel.org for BPF kselftests changes. Thanks, Daniel