netdev - Re: [PATCH v2 1/2] selftests/net: fix missing xdp

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Date:   Thu, 17 Nov 2022 10:00:27 +0800
From:   wangyufen <wangyufen@...wei.com>
To:     Saeed Mahameed <saeed@...nel.org>
CC:     <netdev@...r.kernel.org>, <bpf@...r.kernel.org>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <shuah@...nel.org>, <andrii@...nel.org>,
        <mykolal@...com>, <ast@...nel.org>, <daniel@...earbox.net>,
        <martin.lau@...ux.dev>,
        Daniel Müller <deso@...teo.net>
Subject: Re: [PATCH v2 1/2] selftests/net: fix missing xdp_dummy



在 2022/11/17 5:57, Saeed Mahameed 写道:
> On 15 Nov 18:23, Wang Yufen wrote:
>> After commit afef88e65554 ("selftests/bpf: Store BPF object files with
>> .bpf.o extension"), we should use xdp_dummy.bpf.o instade of xdp_dummy.o.
>>
>> In addition, use the BPF_FILE variable to save the BPF object file name,
>> which can be better identified and modified.
>>
>> Fixes: afef88e65554 ("selftests/bpf: Store BPF object files with 
>> .bpf.o extension")
>> Signed-off-by: Wang Yufen <wangyufen@...wei.com>
>> Cc: Daniel Müller <deso@...teo.net>
>> ---
>> tools/testing/selftests/net/udpgro.sh         | 6 ++++--
>> tools/testing/selftests/net/udpgro_bench.sh   | 6 ++++--
>> tools/testing/selftests/net/udpgro_frglist.sh | 6 ++++--
>> tools/testing/selftests/net/udpgro_fwd.sh     | 3 ++-
>> tools/testing/selftests/net/veth.sh           | 9 +++++----
>> 5 files changed, 19 insertions(+), 11 deletions(-)
>>
>> diff --git a/tools/testing/selftests/net/udpgro.sh 
>> b/tools/testing/selftests/net/udpgro.sh
>> index 6a443ca..a66d62e 100755
>> --- a/tools/testing/selftests/net/udpgro.sh
>> +++ b/tools/testing/selftests/net/udpgro.sh
>> @@ -5,6 +5,8 @@
>>
>> readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
>>
>> +BPF_FILE="../bpf/xdp_dummy.bpf.o"
>> +
>> # set global exit status, but never reset nonzero one.
>> check_err()
>> {
>> @@ -34,7 +36,7 @@ cfg_veth() {
>>     ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
>>     ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
>>     ip -netns "${PEER_NS}" link set dev veth1 up
>> -    ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o 
>> section xdp
>> +    ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
>> }
>>
>> run_one() {
>> @@ -195,7 +197,7 @@ run_all() {
>>     return $ret
>> }
>>
>> -if [ ! -f ../bpf/xdp_dummy.o ]; then
>> +if [ ! -f ${BPF_FILE} ]; then
>>     echo "Missing xdp_dummy helper. Build bpf selftest first"
> 
> nit: I would improve the error message here to print  ${BPF_FILE}.
> There are 3 more spots in the rest of this patch.
got it, thanks!