rtl88x2CE_WiFi_linux add concurrent mode

hc

2024-09-20 cf4ce59b3b70238352c7f1729f0f7223214828ad

 kernel/net/smc/smc_cdc.c
..
..
@@ -104,6 +104,9 @@
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 	union smc_host_cursor cfed;
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 	int rc;
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+	if (unlikely(!READ_ONCE(conn->sndbuf_desc)))
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+		return -ENOBUFS;
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+
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 	smc_cdc_add_pending_send(conn, pend);
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 	conn->tx_cdc_seq++;