linux-kernel - [PATCH RESEND] ethernet: stmmac: fix for none child queue node for tx node

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Message-Id: <20220428010927.526310-1-jay.xu@rock-chips.com>
Date:   Thu, 28 Apr 2022 09:09:27 +0800
From:   Jianqun Xu <jay.xu@...k-chips.com>
To:     peppe.cavallaro@...com, alexandre.torgue@...com,
        joabreu@...opsys.com
Cc:     davem@...emloft.net, kuba@...nel.org, mcoquelin.stm32@...il.com,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Jianqun Xu <jay.xu@...k-chips.com>
Subject: [PATCH RESEND] ethernet: stmmac: fix for none child queue node for tx node

In case of nothing to be set for tx node result in no child queue node
for the tx node, this patch init the queue to tx_queues_to_use instead
of 0 to support dt file set no queue node for tx node.

Signed-off-by: Jianqun Xu <jay.xu@...k-chips.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 2d8c095f3856..4f01a41c485c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -279,7 +279,7 @@ static int stmmac_mtl_setup(struct platform_device *pdev,
 
 		queue++;
 	}
-	if (queue != plat->tx_queues_to_use) {
+	if (queue != plat->tx_queues_to_use && of_get_child_count(tx_node)) {
 		ret = -EINVAL;
 		dev_err(&pdev->dev, "Not all TX queues were configured\n");
 		goto out;
-- 
2.25.1