bpf: Unify helper and kfunc call argument meta

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Helper and kfunc argument checking carried two separate meta structs: the
verifier-local struct bpf_call_arg_meta and bpf_kfunc_call_arg_meta.
Merge them into a single struct bpf_call_arg_meta. This is groundwork for
sharing argument checking between helpers and kfuncs.

While merging, drop the btf_id field from the helper meta since it is
never used.

No functional change.

Signed-off-by: Amery Hung <ameryhung@gmail.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20260715064047.1793790-8-ameryhung@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>

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Amery Hung 2026-07-14 23:40:47 -07:00 • committed by Kumar Kartikeya Dwivedi

parent d55149ff8c

commit bf9c1b911f

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3 changed files with 62 additions and 72 deletions

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38

include/linux/bpf_verifier.h

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2

kernel/bpf/cfg.c

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94

kernel/bpf/verifier.c

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