Thread (21 messages) 21 messages, 4 authors, 2024-08-07
STALE664d REVIEWED: 2 (0M)
Revisions (14)
  1. v5 [diff vs current]
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  12. v15 [diff vs current]
  13. v16 current
  14. v17 [diff vs current]

[PATCH net-next v16 05/14] net: stmmac: dwmac-loongson: Drop pci_enable/disable_msi calls

From: Yanteng Si <hidden>
Date: 2024-08-06 10:59:12
Subsystem: networking drivers, stmmac ethernet driver, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

The Loongson GMAC driver currently doesn't utilize the MSI IRQs, but
retrieves the IRQs specified in the device DT-node. Let's drop the
direct pci_enable_msi()/pci_disable_msi() calls then as redundant

Signed-off-by: Feiyang Chen <redacted>
Signed-off-by: Yinggang Gu <redacted>
Reviewed-by: Serge Semin <redacted>
Acked-by: Huacai Chen <redacted>
Signed-off-by: Yanteng Si <redacted>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
index 9dbd11766364..32814afdf321 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
@@ -114,7 +114,6 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id
 	pci_set_master(pdev);
 
 	loongson_default_data(plat);
-	pci_enable_msi(pdev);
 	memset(&res, 0, sizeof(res));
 	res.addr = pcim_iomap_table(pdev)[0];
 
@@ -122,7 +121,7 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id
 	if (res.irq < 0) {
 		dev_err(&pdev->dev, "IRQ macirq not found\n");
 		ret = -ENODEV;
-		goto err_disable_msi;
+		goto err_disable_device;
 	}
 
 	res.wol_irq = of_irq_get_byname(np, "eth_wake_irq");
@@ -135,17 +134,15 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id
 	if (res.lpi_irq < 0) {
 		dev_err(&pdev->dev, "IRQ eth_lpi not found\n");
 		ret = -ENODEV;
-		goto err_disable_msi;
+		goto err_disable_device;
 	}
 
 	ret = stmmac_dvr_probe(&pdev->dev, plat, &res);
 	if (ret)
-		goto err_disable_msi;
+		goto err_disable_device;
 
 	return ret;
 
-err_disable_msi:
-	pci_disable_msi(pdev);
 err_disable_device:
 	pci_disable_device(pdev);
 err_put_node:
@@ -169,7 +166,6 @@ static void loongson_dwmac_remove(struct pci_dev *pdev)
 		break;
 	}
 
-	pci_disable_msi(pdev);
 	pci_disable_device(pdev);
 }
 
-- 
2.31.4
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