linux-kernel - Re: [PATCH net-next v2] net/sock: Introduce trace_sk_data

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Date:   Fri, 7 Oct 2022 18:11:36 -0700
From:   Peilin Ye <yepeilin.cs@...il.com>
To:     kernel test robot <lkp@...el.com>
Cc:     Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, kbuild-all@...ts.01.org,
        netdev@...r.kernel.org, Peilin Ye <peilin.ye@...edance.com>,
        Cong Wang <cong.wang@...edance.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2] net/sock: Introduce trace_sk_data_ready()

On Sat, Oct 08, 2022 at 08:38:06AM +0800, kernel test robot wrote:
> ERROR: modpost: "__SCT__tp_func_sk_data_ready" [fs/dlm/dlm.ko] undefined!
> ERROR: modpost: "__tracepoint_sk_data_ready" [fs/dlm/dlm.ko] undefined!
> ERROR: modpost: "__SCK__tp_func_sk_data_ready" [fs/dlm/dlm.ko] undefined!
> ERROR: modpost: "__SCT__tp_func_sk_data_ready" [fs/ocfs2/cluster/ocfs2_nodemanager.ko] undefined!
> ERROR: modpost: "__tracepoint_sk_data_ready" [fs/ocfs2/cluster/ocfs2_nodemanager.ko] undefined!
> ERROR: modpost: "__SCK__tp_func_sk_data_ready" [fs/ocfs2/cluster/ocfs2_nodemanager.ko] undefined!
> ERROR: modpost: "__SCT__tp_func_sk_data_ready" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
> ERROR: modpost: "__tracepoint_sk_data_ready" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
> ERROR: modpost: "__SCK__tp_func_sk_data_ready" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
> >> ERROR: modpost: "__SCT__tp_func_sk_data_ready" [net/tls/tls.ko] undefined!
> WARNING: modpost: suppressed 11 unresolved symbol warnings because there were too many)

Similar to [1], we need EXPORT_TRACEPOINT_SYMBOL_GPL() in
net/core/net-traces.c for modules.  Will fix in v3.

[1] https://lore.kernel.org/netdev/20171023.050836.1983843564876160779.davem@davemloft.net/

Thanks,
Peilin Ye