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drivers: wifi: esp_at: fix last rx data loss in Passive Receive mode

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In Passive Receive mode, ESP modem will buffer rx data.
This fix makes the data still available to user,
even though the peer has closed the socket.
Otherwise, user will fail to get the last rx data,
when the socket is closed by the peer.

Signed-off-by: Chun-Chieh Li <ccli8@nuvoton.com>
This commit is contained in:
Chun-Chieh Li 2023-12-21 15:05:04 +08:00 committed by Carles Cufí
parent 4ae558c505
commit 173e4983fd
1 changed files with 8 additions and 0 deletions
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8
drivers/wifi/esp_at/esp_socket.c
View file

@ -151,8 +151,16 @@ void esp_socket_rx(struct esp_socket *sock, struct net_buf *buf,
flags = esp_socket_flags(sock);
#ifdef CONFIG_WIFI_ESP_AT_PASSIVE_MODE
/* In Passive Receive mode, ESP modem will buffer rx data and make it still
* available even though the peer has closed the connection.
*/
if (!(flags & ESP_SOCK_CONNECTED) &&
!(flags & ESP_SOCK_CLOSE_PENDING)) {
#else
if (!(flags & ESP_SOCK_CONNECTED) ||
(flags & ESP_SOCK_CLOSE_PENDING)) {
#endif
LOG_DBG("Received data on closed link %d", sock->link_id);
return;
}