2026-10-16 22:47 UTC+0300 ~ Maxim Skokov <[email protected]> > Some BPF commands return ENOTSUPP (524) to user space: iterating local > storage maps, element operations on ringbuf maps, creating an LRU hash > map without preallocation, freezing a struct_ops map, or running a > program type that has no test_run. ENOTSUPP is kernel internal, so > strerror() only gives "Unknown error 524": > > # bpftool map getnext pinned /sys/fs/bpf/sk_storage > Error: can't get next key: Unknown error 524 > > Add a small helper that knows ENOTSUPP and use it where bpftool prints > the error of map create, map element operations, map freeze and prog > run. > > Suggested-by: Daniel Borkmann <[email protected]> > Assisted-by: LLM > Signed-off-by: Maxim Skokov <[email protected]>
Acked-by: Quentin Monnet <[email protected]> Thank you
