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Andrii Nakryiko 25a589cfc9 selftests/bpf: fix test_spin_lock_fail.c's global vars usage 
[ Upstream commit 1b2bfc2969 ]

Global variables of special types (like `struct bpf_spin_lock`) make
underlying ARRAY maps non-mmapable. To make this work with libbpf's
mmaping logic, application is expected to declare such special variables
as static, so libbpf doesn't even attempt to mmap() such ARRAYs.

test_spin_lock_fail.c didn't follow this rule, but given it relied on
this test to trigger failures, this went unnoticed, as we never got to
the step of mmap()'ing these ARRAY maps.

It is fragile and relies on specific sequence of libbpf steps, which are
an internal implementation details.

Fix the test by marking lockA and lockB as static.

Fixes: c48748aea4 ("selftests/bpf: Add failure test cases for spin lock pairing")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20241023043908.3834423-2-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-05 14:01:47 +01:00
..
crypto/chacha20-s390 tools/testing/crypto: Use vzalloc instead of vmalloc+memset 2022-07-05 14:46:36 +02:00
cxl cxl/test: Improve init-order fidelity relative to real-world systems 2024-10-25 16:07:04 -05:00
fault-injection failcmd: make failcmd.sh executable 2024-09-01 20:43:32 -07:00
ktest ktest.pl: Avoid false positives with grub2 skip regex 2024-09-04 15:06:28 -04:00
kunit kunit: tool: Build compile_commands.json 2024-09-12 09:52:36 -06:00
memblock memblock: updates for 6.12-rc1 2024-09-25 11:35:19 -07:00
nvdimm testing: nvdimm: Add MODULE_DESCRIPTION() macros 2024-06-17 18:43:08 -05:00
radix-tree maple_tree: add regression test for spanning store bug 2024-10-17 08:35:10 -07:00
scatterlist tools/testing/scatterlist: add missing defines 2022-01-30 09:56:58 +02:00
selftests selftests/bpf: fix test_spin_lock_fail.c's global vars usage 2024-12-05 14:01:47 +01:00
shared 19 hotfixes. 13 are cc:stable. 2024-09-27 10:27:22 -07:00
vma tools: testing: add expand-only mode VMA test 2024-10-28 21:40:40 -07:00
vsock test/vsock: add ioctl unsent bytes test 2024-08-02 09:20:28 +01:00