This is a bpf-treewide change that annotates all kfuncs as such inside .BTF_ids. This annotation eventually allows us to automatically generate kfunc prototypes from bpftool. We store this metadata inside a yet-unused flags field inside struct btf_id_set8 (thanks Kumar!). pahole will be taught where to look. More details about the full chain of events are available in commit 2's description. Daniel Xu (2): bpf: btf: Support optional flags for BTF_SET8 sets bpf: treewide: Annotate BPF kfuncs in BTF drivers/hid/bpf/hid_bpf_dispatch.c | 4 ++-- fs/verity/measure.c | 2 +- include/linux/btf_ids.h | 17 ++++++++++++----- kernel/bpf/btf.c | 3 +++ kernel/bpf/cpumask.c | 2 +- kernel/bpf/helpers.c | 4 ++-- kernel/bpf/map_iter.c | 2 +- kernel/cgroup/rstat.c | 2 +- kernel/trace/bpf_trace.c | 4 ++-- net/bpf/test_run.c | 4 ++-- net/core/filter.c | 8 ++++---- net/core/xdp.c | 2 +- net/ipv4/bpf_tcp_ca.c | 2 +- net/ipv4/fou_bpf.c | 2 +- net/ipv4/tcp_bbr.c | 2 +- net/ipv4/tcp_cubic.c | 2 +- net/ipv4/tcp_dctcp.c | 2 +- net/netfilter/nf_conntrack_bpf.c | 2 +- net/netfilter/nf_nat_bpf.c | 2 +- net/xfrm/xfrm_interface_bpf.c | 2 +- net/xfrm/xfrm_state_bpf.c | 2 +- .../selftests/bpf/bpf_testmod/bpf_testmod.c | 2 +- 22 files changed, 42 insertions(+), 32 deletions(-) -- 2.42.1
