Symbol: KF_FASTCALL
kernel/bpf/helpers.c
4598
BTF_ID_FLAGS(func, bpf_cast_to_kern_ctx, KF_FASTCALL)
kernel/bpf/helpers.c
4599
BTF_ID_FLAGS(func, bpf_rdonly_cast, KF_FASTCALL)
kernel/bpf/verifier.c
18386
cs->fastcall = meta.kfunc_flags & KF_FASTCALL;