selftests/bpf: Fix open call in trigger_fstat_events
Alexei reported compile breakage on newer systems with following error: In file included from /usr/include/fcntl.h:290:0, 4814 from ./test_progs.h:29, 4815 from .../bpf-next/tools/testing/selftests/bpf/prog_tests/d_path.c:3: 4816In function ‘open’, 4817 inlined from ‘trigger_fstat_events’ at .../bpf-next/tools/testing/selftests/bpf/prog_tests/d_path.c:50:10, 4818 inlined from ‘test_d_path’ at .../bpf-next/tools/testing/selftests/bpf/prog_tests/d_path.c:119:6: 4819/usr/include/x86_64-linux-gnu/bits/fcntl2.h:50:4: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT or O_TMPFILE in second argument needs 3 arguments 4820 __open_missing_mode (); 4821 ^~~~~~~~~~~~~~~~~~~~~~ We're missing permission bits as 3rd argument for open call with O_CREAT flag specified. Fixes: e4d1af4b ("selftests/bpf: Add test for d_path helper") Reported-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200826101845.747617-1-jolsa@kernel.org
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