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The .check_member field of struct bpf_struct_ops is currently passed the member's btf_type via const struct btf_type *t, and a const struct btf_member *member. This allows the struct_ops implementation to check whether e.g. an ops is supported, but it would be useful to also enforce that the struct_ops prog being loaded for that member has other qualities, like being sleepable (or not). This patch therefore updates the .check_member() callback to also take a const struct bpf_prog *prog argument. Signed-off-by: David Vernet <void@manifault.com> Link: https://lore.kernel.org/r/20230125164735.785732-4-void@manifault.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>