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mptcp: use MPTCP_SUBFLOW_NODATA

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Set subflow->data_avail with the enum value MPTCP_SUBFLOW_NODATA, instead
of using 0 directly.

Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Geliang Tang 2022-03-07 12:44:32 -08:00 committed by Jakub Kicinski
parent 0eb4e7ee16
commit ea56dcb43c
1 changed files with 4 additions and 4 deletions
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8
net/mptcp/subflow.c
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@ -1104,7 +1104,7 @@ static bool subflow_check_data_avail(struct sock *ssk)
struct sk_buff *skb;
if (!skb_peek(&ssk->sk_receive_queue))
WRITE_ONCE(subflow->data_avail, 0);
WRITE_ONCE(subflow->data_avail, MPTCP_SUBFLOW_NODATA);
if (subflow->data_avail)
return true;
@ -1169,7 +1169,7 @@ static bool subflow_check_data_avail(struct sock *ssk)
subflow->reset_transient = 0;
subflow->reset_reason = MPTCP_RST_EMIDDLEBOX;
tcp_send_active_reset(ssk, GFP_ATOMIC);
WRITE_ONCE(subflow->data_avail, 0);
WRITE_ONCE(subflow->data_avail, MPTCP_SUBFLOW_NODATA);
return true;
}
@ -1182,7 +1182,7 @@ static bool subflow_check_data_avail(struct sock *ssk)
subflow->reset_transient = 0;
subflow->reset_reason = MPTCP_RST_EMPTCP;
tcp_send_active_reset(ssk, GFP_ATOMIC);
WRITE_ONCE(subflow->data_avail, 0);
WRITE_ONCE(subflow->data_avail, MPTCP_SUBFLOW_NODATA);
return false;
}
@ -1204,7 +1204,7 @@ bool mptcp_subflow_data_available(struct sock *sk)
if (subflow->map_valid &&
mptcp_subflow_get_map_offset(subflow) >= subflow->map_data_len) {
subflow->map_valid = 0;
WRITE_ONCE(subflow->data_avail, 0);
WRITE_ONCE(subflow->data_avail, MPTCP_SUBFLOW_NODATA);
pr_debug("Done with mapping: seq=%u data_len=%u",
subflow->map_subflow_seq,