selftests/bpf: Test attach rejection for struct_ops arena programs

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Exercise fentry, fexit, and freplace programs that target a struct_ops
callback with an arena context argument. Verify each load is rejected with
-EOPNOTSUPP and the arena-specific verifier diagnostic.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://patch.msgid.link/20260808003938.3486067-15-memxor@gmail.com
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>

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Kumar Kartikeya Dwivedi 2026-08-08 02:39:34 +02:00 • committed by Eduard Zingerman

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commit 4976cce08b

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54

tools/testing/selftests/bpf/prog_tests/test_struct_ops_arena.c

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25

tools/testing/selftests/bpf/progs/struct_ops_arena_attach.c

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