* [PATCHv2 bpf-next] mptcp: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled
@ 2022-08-02 16:33 Jiri Olsa
2022-08-02 22:36 ` Mat Martineau
2022-08-08 13:40 ` patchwork-bot+netdevbpf
0 siblings, 2 replies; 3+ messages in thread
From: Jiri Olsa @ 2022-08-02 16:33 UTC (permalink / raw)
To: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Mat Martineau, Matthieu Baerts
Cc: Martin KaFai Lau, bpf, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo, mptcp
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
Adding empty difinition for struct mptcp_sock when CONFIG_MPTCP
is disabled.
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
include/net/mptcp.h | 4 ++++
1 file changed, 4 insertions(+)
v2 changes:
- moved the new empty struct declaration next to the inline
bpf_mptcp_sock_from_subflow function [Mat]
diff --git a/include/net/mptcp.h b/include/net/mptcp.h
index ac9cf7271d46..412479ebf5ad 100644
--- a/include/net/mptcp.h
+++ b/include/net/mptcp.h
@@ -291,4 +291,8 @@ struct mptcp_sock *bpf_mptcp_sock_from_subflow(struct sock *sk);
static inline struct mptcp_sock *bpf_mptcp_sock_from_subflow(struct sock *sk) { return NULL; }
#endif
+#if !IS_ENABLED(CONFIG_MPTCP)
+struct mptcp_sock { };
+#endif
+
#endif /* __NET_MPTCP_H */
--
2.37.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCHv2 bpf-next] mptcp: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled
2022-08-02 16:33 [PATCHv2 bpf-next] mptcp: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled Jiri Olsa
@ 2022-08-02 22:36 ` Mat Martineau
2022-08-08 13:40 ` patchwork-bot+netdevbpf
1 sibling, 0 replies; 3+ messages in thread
From: Mat Martineau @ 2022-08-02 22:36 UTC (permalink / raw)
To: Jiri Olsa
Cc: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Matthieu Baerts, Martin KaFai Lau, bpf, Song Liu, Yonghong Song,
John Fastabend, KP Singh, Stanislav Fomichev, Hao Luo, mptcp
On Tue, 2 Aug 2022, Jiri Olsa wrote:
> 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
>
> Adding empty difinition for struct mptcp_sock when CONFIG_MPTCP
> is disabled.
>
> Acked-by: Martin KaFai Lau <kafai@fb.com>
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Thanks Jiri, v2 looks good to merge in bpf-next:
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
> ---
> include/net/mptcp.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> v2 changes:
> - moved the new empty struct declaration next to the inline
> bpf_mptcp_sock_from_subflow function [Mat]
>
> diff --git a/include/net/mptcp.h b/include/net/mptcp.h
> index ac9cf7271d46..412479ebf5ad 100644
> --- a/include/net/mptcp.h
> +++ b/include/net/mptcp.h
> @@ -291,4 +291,8 @@ struct mptcp_sock *bpf_mptcp_sock_from_subflow(struct sock *sk);
> static inline struct mptcp_sock *bpf_mptcp_sock_from_subflow(struct sock *sk) { return NULL; }
> #endif
>
> +#if !IS_ENABLED(CONFIG_MPTCP)
> +struct mptcp_sock { };
> +#endif
> +
> #endif /* __NET_MPTCP_H */
> --
> 2.37.1
>
>
--
Mat Martineau
Intel
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCHv2 bpf-next] mptcp: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled
2022-08-02 16:33 [PATCHv2 bpf-next] mptcp: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled Jiri Olsa
2022-08-02 22:36 ` Mat Martineau
@ 2022-08-08 13:40 ` patchwork-bot+netdevbpf
1 sibling, 0 replies; 3+ messages in thread
From: patchwork-bot+netdevbpf @ 2022-08-08 13:40 UTC (permalink / raw)
To: Jiri Olsa
Cc: ast, daniel, andrii, mathew.j.martineau, matthieu.baerts, kafai,
bpf, songliubraving, yhs, john.fastabend, kpsingh, sdf, haoluo,
mptcp
Hello:
This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@iogearbox.net>:
On Tue, 2 Aug 2022 18:33:24 +0200 you wrote:
> 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
>
> [...]
Here is the summary with links:
- [PATCHv2,bpf-next] mptcp: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled
https://git.kernel.org/bpf/bpf/c/f1d41f7720c8
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
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2022-08-02 16:33 [PATCHv2 bpf-next] mptcp: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled Jiri Olsa
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2022-08-08 13:40 ` patchwork-bot+netdevbpf
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