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authorGeliang Tang2023-12-15 17:04:24 +0100
committerDavid S. Miller2023-12-17 20:54:21 +0000
commitc8f021eec5817601dbd25ab7e3ad5c720965c688 (patch)
tree296ef92815ade4d6a543d721c8d4e36b79aa840a /include
parentb1dfc0f76231bbf395c59d20a2070684620d5d0f (diff)
selftests: mptcp: join: fix subflow_send_ack lookup
MPC backups tests will skip unexpected sometimes (For example, when compiling kernel with an older version of gcc, such as gcc-8), since static functions like mptcp_subflow_send_ack also be listed in /proc/kallsyms, with a 't' in front of it, not 'T' ('T' is for a global function): > grep "mptcp_subflow_send_ack" /proc/kallsyms 0000000000000000 T __pfx___mptcp_subflow_send_ack 0000000000000000 T __mptcp_subflow_send_ack 0000000000000000 t __pfx_mptcp_subflow_send_ack 0000000000000000 t mptcp_subflow_send_ack In this case, mptcp_lib_kallsyms_doesnt_have "mptcp_subflow_send_ack$" will be false, MPC backups tests will skip. This is not what we expected. The correct logic here should be: if mptcp_subflow_send_ack is not a global function in /proc/kallsyms, do these MPC backups tests. So a 'T' must be added in front of mptcp_subflow_send_ack. Fixes: 632978f0a961 ("selftests: mptcp: join: skip MPC backups tests if not supported") Cc: stable@vger.kernel.org Signed-off-by: Geliang Tang <geliang.tang@linux.dev> Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts <matttbe@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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