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2025-08-18selftests/bpf: Clobber a lot of registers in tailcall_bpf2bpf_hierarchy testsIlya Leoshkevich
Clobbering a lot of registers and stack slots helps exposing tail call counter overwrite bugs in JITs. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20250813121016.163375-5-iii@linux.ibm.com