netdev - [PATCH v2 net-next 5/8] net: airoha: Use qdma pointer as private structure in airoha_irq

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Message-ID: <1e40c3cb973881c0eb3c3c247c78550da62054ab.1722522582.git.lorenzo@kernel.org>
Date: Thu,  1 Aug 2024 16:35:07 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: netdev@...r.kernel.org
Cc: nbd@....name,
	lorenzo.bianconi83@...il.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	linux-arm-kernel@...ts.infradead.org,
	upstream@...oha.com,
	angelogioacchino.delregno@...labora.com,
	benjamin.larsson@...exis.eu,
	rkannoth@...vell.com,
	sgoutham@...vell.com,
	andrew@...n.ch,
	arnd@...db.de,
	horms@...nel.org
Subject: [PATCH v2 net-next 5/8] net: airoha: Use qdma pointer as private structure in airoha_irq_handler routine

This is a preliminary patch to support multi-QDMA controllers.

Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
 drivers/net/ethernet/mediatek/airoha_eth.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/airoha_eth.c b/drivers/net/ethernet/mediatek/airoha_eth.c
index 54515c8a8b03..2ded99434a17 100644
--- a/drivers/net/ethernet/mediatek/airoha_eth.c
+++ b/drivers/net/ethernet/mediatek/airoha_eth.c
@@ -1973,8 +1973,7 @@ static int airoha_qdma_hw_init(struct airoha_qdma *qdma)
 
 static irqreturn_t airoha_irq_handler(int irq, void *dev_instance)
 {
-	struct airoha_eth *eth = dev_instance;
-	struct airoha_qdma *qdma = &eth->qdma[0];
+	struct airoha_qdma *qdma = dev_instance;
 	u32 intr[ARRAY_SIZE(qdma->irqmask)];
 	int i;
 
@@ -1984,7 +1983,7 @@ static irqreturn_t airoha_irq_handler(int irq, void *dev_instance)
 		airoha_qdma_wr(qdma, REG_INT_STATUS(i), intr[i]);
 	}
 
-	if (!test_bit(DEV_STATE_INITIALIZED, &eth->state))
+	if (!test_bit(DEV_STATE_INITIALIZED, &qdma->eth->state))
 		return IRQ_NONE;
 
 	if (intr[1] & RX_DONE_INT_MASK) {
@@ -2037,7 +2036,7 @@ static int airoha_qdma_init(struct platform_device *pdev,
 		return qdma->irq;
 
 	err = devm_request_irq(eth->dev, qdma->irq, airoha_irq_handler,
-			       IRQF_SHARED, KBUILD_MODNAME, eth);
+			       IRQF_SHARED, KBUILD_MODNAME, qdma);
 	if (err)
 		return err;
 
-- 
2.45.2