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test_access_variable_array relied on accessing struct sched_domain::span
to validate variable-length array handling via BTF. Recent scheduler
refactoring removed or hid this field, causing the test
to fail to build.
Given that this test depends on internal scheduler structures that are
subject to refactoring, and equivalent variable-length array coverage
already exists via bpf_testmod-based tests, remove
test_access_variable_array entirely.
Link: https://lore.kernel.org/all/177434340048.1647592.8586759362906719839.tip-bot2@tip-bot2/
Signed-off-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Tested-by: Naveen Kumar Thummalapenta <naveen66@linux.ibm.com>
Link: https://lore.kernel.org/r/20260410105404.91126-1-venkat88@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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name change
After commit 4c3e509ea9f2 ("sched/balancing: Rename load_balance() => sched_balance_rq()"),
the load_balance kernel function is renamed to sched_balance_rq.
This patch adjusts the fentry program in test_access_variable_array.c
to reflect this kernel function name change.
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240516170140.2689430-1-martin.lau@linux.dev
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Add prog test for accessing integer type of variable array in tracing
program.
In addition, hook load_balance function to access sd->span[0], only
to confirm whether the load is successful. Because there is no direct
way to trigger load_balance call.
Co-developed-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Feng Zhou <zhoufeng.zf@bytedance.com>
Link: https://lore.kernel.org/r/20230420032735.27760-3-zhoufeng.zf@bytedance.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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