rtl88x2CE_WiFi_linux add concurrent mode

hc

2024-09-20 cf4ce59b3b70238352c7f1729f0f7223214828ad

 kernel/net/rds/transport.c
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@@ -38,6 +38,12 @@
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 #include "rds.h"
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 #include "loop.h"
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+static char * const rds_trans_modules[] = {
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+	[RDS_TRANS_IB] = "rds_rdma",
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+	[RDS_TRANS_GAP] = NULL,
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+	[RDS_TRANS_TCP] = "rds_tcp",
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+};
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+
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 static struct rds_transport *transports[RDS_TRANS_COUNT];
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 static DECLARE_RWSEM(rds_trans_sem);
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@@ -110,18 +116,20 @@
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 {
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 	struct rds_transport *ret = NULL;
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 	struct rds_transport *trans;
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-	unsigned int i;
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 	down_read(&rds_trans_sem);
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-	for (i = 0; i < RDS_TRANS_COUNT; i++) {
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-		trans = transports[i];
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-
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-		if (trans && trans->t_type == t_type &&
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-		    (!trans->t_owner || try_module_get(trans->t_owner))) {
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-			ret = trans;
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-			break;
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-		}
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+	trans = transports[t_type];
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+	if (!trans) {
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+		up_read(&rds_trans_sem);
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+		if (rds_trans_modules[t_type])
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+			request_module(rds_trans_modules[t_type]);
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+		down_read(&rds_trans_sem);
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+		trans = transports[t_type];
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 	}
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+	if (trans && trans->t_type == t_type &&
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+	    (!trans->t_owner || try_module_get(trans->t_owner)))
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+		ret = trans;
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+
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 	up_read(&rds_trans_sem);
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 	return ret;