kernel/linux.git/tools, branch v5.15.3

selftests/bpf: Fix also no-alu32 strobemeta selftest

2021-11-18T18:17:21+00:00

commit a20eac0af02810669e187cb623bc904908c423af upstream. Previous fix aded bpf_clamp_umax() helper use to re-validate boundaries. While that works correctly, it introduces more branches, which blows up past 1 million instructions in no-alu32 variant of strobemeta selftests. Switching len variable from u32 to u64 also fixes the issue and reduces the number of validated instructions, so use that instead. Fix this patch and bpf_clamp_umax() removed, both alu32 and no-alu32 selftests pass. Fixes: 0133c20480b1 ("selftests/bpf: Fix strobemeta selftest regression") Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20211101230118.1273019-1-andrii@kernel.org Signed-off-by: Greg Kroah-Hartman

selftests/x86/iopl: Adjust to the faked iopl CLI/STI usage

2021-11-18T18:17:21+00:00

commit a72fdfd21e01c626273ddcf5ab740d4caef4be54 upstream. Commit in Fixes changed the iopl emulation to not #GP on CLI and STI because it would break some insane luserspace tools which would toggle interrupts. The corresponding selftest would rely on the fact that executing CLI/STI would trigger a #GP and thus detect it this way but since that #GP is not happening anymore, the detection is now wrong too. Extend the test to actually look at the IF flag and whether executing those insns had any effect on it. The STI detection needs to have the fact that interrupts were previously disabled, passed in so do that from the previous CLI test, i.e., STI test needs to follow a previous CLI one for it to make sense. Fixes: b968e84b509d ("x86/iopl: Fake iopl(3) CLI/STI usage") Suggested-by: Thomas Gleixner Signed-off-by: Borislav Petkov Acked-by: Thomas Gleixner Link: https://lore.kernel.org/r/20211030083939.13073-1-bp@alien8.de Signed-off-by: Greg Kroah-Hartman

selftests/net: udpgso_bench_rx: fix port argument

2021-11-18T18:17:13+00:00

[ Upstream commit d336509cb9d03970911878bb77f0497f64fda061 ] The below commit added optional support for passing a bind address. It configures the sockaddr bind arguments before parsing options and reconfigures on options -b and -4. This broke support for passing port (-p) on its own. Configure sockaddr after parsing all arguments. Fixes: 3327a9c46352 ("selftests: add functionals test for UDP GRO") Reported-by: Eric Dumazet Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller Signed-off-by: Sasha Levin

perf bpf: Add missing free to bpf_event__print_bpf_prog_info()

2021-11-18T18:17:10+00:00

[ Upstream commit 88c42f4d6cb249eb68524282f8d4cc32f9059984 ] If btf__new() is called then there needs to be a corresponding btf__free(). Fixes: f8dfeae009effc0b ("perf bpf: Show more BPF program info in print_bpf_prog_info()") Signed-off-by: Ian Rogers Cc: Alexander Shishkin Cc: Alexei Starovoitov Cc: Andrii Nakryiko Cc: Daniel Borkmann Cc: Jiri Olsa Cc: John Fastabend Cc: KP Singh Cc: Mark Rutland Cc: Martin KaFai Lau Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Song Liu Cc: Stephane Eranian Cc: Tiezhu Yang Cc: Yonghong Song Cc: bpf@vger.kernel.org Cc: netdev@vger.kernel.org Link: http://lore.kernel.org/lkml/20211106053733.3580931-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin

selftests/bpf/xdp_redirect_multi: Limit the tests in netns

2021-11-18T18:17:09+00:00

[ Upstream commit 8955c1a329873385775081e029d9a7c6aa9037e1 ] As I want to test both DEVMAP and DEVMAP_HASH in XDP multicast redirect, I limited DEVMAP max entries to a small value for performace. When the test runs after amount of interface creating/deleting tests. The interface index will exceed the map max entries and xdp_redirect_multi will error out with "Get interfacesInterface index to large". Fix this issue by limit the tests in netns and specify the ifindex when creating interfaces. Fixes: d23292476297 ("selftests/bpf: Add xdp_redirect_multi test") Reported-by: Jiri Benc Signed-off-by: Hangbin Liu Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211027033553.962413-5-liuhangbin@gmail.com Signed-off-by: Sasha Levin

selftests/bpf/xdp_redirect_multi: Give tcpdump a chance to terminate cleanly

2021-11-18T18:17:09+00:00

[ Upstream commit 648c3677062fbd14d754b853daebb295426771e8 ] No need to kill tcpdump with -9. Fixes: d23292476297 ("selftests/bpf: Add xdp_redirect_multi test") Suggested-by: Jiri Benc Signed-off-by: Hangbin Liu Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211027033553.962413-4-liuhangbin@gmail.com Signed-off-by: Sasha Levin

selftests/bpf/xdp_redirect_multi: Use arping to accurate the arp number

2021-11-18T18:17:09+00:00

[ Upstream commit f53ea9dbf78d42a10e2392b5c59362ccc224fd1d ] The arp request number triggered by ping none exist address is not accurate, which may lead the test false negative/positive. Change to use arping to accurate the arp number. Also do not use grep pattern match for dot. Fixes: d23292476297 ("selftests/bpf: Add xdp_redirect_multi test") Suggested-by: Jiri Benc Signed-off-by: Hangbin Liu Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211027033553.962413-3-liuhangbin@gmail.com Signed-off-by: Sasha Levin

selftests/bpf/xdp_redirect_multi: Put the logs to tmp folder

2021-11-18T18:17:09+00:00

[ Upstream commit 8b4ac13abe7d82da0e0d22a9ba2e27301559a93e ] The xdp_redirect_multi test logs are created in selftest folder and not cleaned after test. Let's creat a tmp dir and remove the logs after testing. Fixes: d23292476297 ("selftests/bpf: Add xdp_redirect_multi test") Suggested-by: Jiri Benc Signed-off-by: Hangbin Liu Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20211027033553.962413-2-liuhangbin@gmail.com Signed-off-by: Sasha Levin

libbpf: Fix lookup_and_delete_elem_flags error reporting

2021-11-18T18:17:09+00:00

[ Upstream commit 64165ddf8ea184631c65e3bbc8d59f6d940590ca ] Fix bpf_map_lookup_and_delete_elem_flags() to pass the return code through libbpf_err_errno() as we do similarly in bpf_map_lookup_and_delete_elem(). Fixes: f12b65432728 ("libbpf: Streamline error reporting for low-level APIs") Signed-off-by: Mehrdad Arshad Rad Signed-off-by: Daniel Borkmann Acked-by: Yonghong Song Link: https://lore.kernel.org/bpf/20211104171354.11072-1-arshad.rad@gmail.com Signed-off-by: Sasha Levin

selftests: net: properly support IPv6 in GSO GRE test

2021-11-18T18:17:07+00:00

[ Upstream commit a985442fdecb59504e3a2f1cfdd3c53af017ea5b ] Explicitly pass -6 to netcat when the test is using IPv6 to prevent failures. Also make sure to pass "-N" to netcat to close the socket after EOF on the client side, otherwise we would always hit the timeout and the test would fail. Without this fix applied: TEST: GREv6/v4 - copy file w/ TSO [FAIL] TEST: GREv6/v4 - copy file w/ GSO [FAIL] TEST: GREv6/v6 - copy file w/ TSO [FAIL] TEST: GREv6/v6 - copy file w/ GSO [FAIL] With this fix applied: TEST: GREv6/v4 - copy file w/ TSO [ OK ] TEST: GREv6/v4 - copy file w/ GSO [ OK ] TEST: GREv6/v6 - copy file w/ TSO [ OK ] TEST: GREv6/v6 - copy file w/ GSO [ OK ] Fixes: 025efa0a82df ("selftests: add simple GSO GRE test") Signed-off-by: Andrea Righi Signed-off-by: David S. Miller Signed-off-by: Sasha Levin