openwrt/target/linux/airoha/patches-6.6/010-05-v6.12-net-airoha-Use-qdma-pointer-as-private-structure-in-.patch

From e3d6bfdfc0aeb8c1d7965413b1050ec07f9761e5 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Thu, 1 Aug 2024 16:35:07 +0200
Subject: [PATCH 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@kernel.org>
Link: https://patch.msgid.link/1e40c3cb973881c0eb3c3c247c78550da62054ab.1722522582.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 drivers/net/ethernet/mediatek/airoha_eth.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/mediatek/airoha_eth.c
+++ b/drivers/net/ethernet/mediatek/airoha_eth.c
@@ -1974,8 +1974,7 @@ static int airoha_qdma_hw_init(struct ai
 
 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;
 
@@ -1985,7 +1984,7 @@ static irqreturn_t airoha_irq_handler(in
 		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) {
@@ -2038,7 +2037,7 @@ static int airoha_qdma_init(struct platf
 		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;