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Jiri Olsa f1d41f7720 mptcp, btf: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled
The btf_sock_ids array needs struct mptcp_sock BTF ID for the
bpf_skc_to_mptcp_sock helper.

When CONFIG_MPTCP is disabled, the 'struct mptcp_sock' is not
defined and resolve_btfids will complain with:

  [...]
  BTFIDS  vmlinux
  WARN: resolve_btfids: unresolved symbol mptcp_sock
  [...]

Add an empty definition for struct mptcp_sock when CONFIG_MPTCP
is disabled.

Fixes: 3bc253c2e6 ("bpf: Add bpf_skc_to_mptcp_sock_proto")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20220802163324.1873044-1-jolsa@kernel.org
2022-08-08 15:30:45 +02:00
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Documentation bpf: Update bpf_design_QA.rst to clarify that BTF_ID does not ABIify a function 2022-08-04 13:17:24 -07:00
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include mptcp, btf: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled 2022-08-08 15:30:45 +02:00
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kernel bpf: Cleanup ftrace hash in bpf_trampoline_put 2022-08-05 09:43:58 -07:00
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Linux kernel
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