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[ Upstream commitc1e07a80cf] skel->links.oncpu is leaked in one case. This causes test perf_branches fails when it runs after get_stackid_cannot_attach: ./test_progs -t get_stackid_cannot_attach,perf_branches 84 get_stackid_cannot_attach:OK test_perf_branches_common:PASS:test_perf_branches_load 0 nsec test_perf_branches_common:PASS:attach_perf_event 0 nsec test_perf_branches_common:PASS:set_affinity 0 nsec check_good_sample:FAIL:output not valid no valid sample from prog 146/1 perf_branches/perf_branches_hw:FAIL 146/2 perf_branches/perf_branches_no_hw:OK 146 perf_branches:FAIL All error logs: test_perf_branches_common:PASS:test_perf_branches_load 0 nsec test_perf_branches_common:PASS:attach_perf_event 0 nsec test_perf_branches_common:PASS:set_affinity 0 nsec check_good_sample:FAIL:output not valid no valid sample from prog 146/1 perf_branches/perf_branches_hw:FAIL 146 perf_branches:FAIL Summary: 1/1 PASSED, 0 SKIPPED, 1 FAILED Fix this by adding the missing bpf_link__destroy(). Fixes:346938e938("selftests/bpf: Add get_stackid_cannot_attach") Signed-off-by: Song Liu <song@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20230412210423.900851-3-song@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.