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mptcp: use list_first_entry_or_null

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Use list_first_entry_or_null to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Geliang Tang 2020-06-15 16:34:28 +08:00 committed by David S. Miller
parent 35ed87add7
commit a386bc5b21
1 changed files with 1 additions and 4 deletions
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5
net/mptcp/protocol.h
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@ -232,10 +232,7 @@ static inline struct mptcp_data_frag *mptcp_rtx_head(const struct sock *sk)
{
struct mptcp_sock *msk = mptcp_sk(sk);
if (list_empty(&msk->rtx_queue))
return NULL;
return list_first_entry(&msk->rtx_queue, struct mptcp_data_frag, list);
return list_first_entry_or_null(&msk->rtx_queue, struct mptcp_data_frag, list);
}
struct mptcp_subflow_request_sock {