[PATCH v3 0/7] stmmac: intel: Fixes and cleanups after dwmac-intel split

[PATCH v3 0/7] stmmac: intel: Fixes and cleanups after dwmac-intel split

[Andy Shevchenko]

Seems the split of dwmac-intel didn't go well and on top of that new
functionality in the driver has not been properly tested.

Patch 1 fixes a nasty kernel crash due to missed error handling.
Patches 2 and 3 fix the incorrect split (clock and PCI bar handling).

Patch 4 converts driver to use new PCI IRQ allocation API.

The rest is a set of clean ups that may have been done in the initial
submission.

Series has been tested on couple of Elkhart Lake platforms with different
behaviour of ethernet hardware.

Changelog v3:
- added the cover letter (David)
- appended separate fix as a first patch
- marked patches 2 and 3 with Fixes tag

Andy Shevchenko (7):
  stmmac: intel: Fix kernel crash due to wrong error path
  stmmac: intel: Fix clock handling on error and remove paths
  stmmac: intel: Remove unnecessary loop for PCI BARs
  stmmac: intel: Convert to use pci_alloc_irq_vectors() API
  stmmac: intel: Eliminate useless conditions and variables
  stmmac: intel: Fix indentation to put on one line affected code
  stmmac: intel: Place object in the Makefile according to the order

 drivers/net/ethernet/stmicro/stmmac/Makefile  |   4 +-
 .../net/ethernet/stmicro/stmmac/dwmac-intel.c | 160 +++++++-----------
 .../net/ethernet/stmicro/stmmac/stmmac_main.c |   4 +-
 .../net/ethernet/stmicro/stmmac/stmmac_pci.c  |   5 -
 4 files changed, 68 insertions(+), 105 deletions(-)

-- 
2.26.2

[PATCH v3 1/7] stmmac: intel: Fix kernel crash due to wrong error path

[Andy Shevchenko]

Unfortunately sometimes ->probe() may fail. The commit b9663b7ca6ff
("net: stmmac: Enable SERDES power up/down sequence")
messed up with error handling and thus:

[   12.811311] ------------[ cut here ]------------
[   12.811993] kernel BUG at net/core/dev.c:9937!

Fix this by properly crafted error path.

Fixes: b9663b7ca6ff ("net: stmmac: Enable SERDES power up/down sequence")
Cc: Voon Weifeng <weifeng.voon@intel.com>
Cc: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 565da6498c846e..ff22f274aa43d6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4991,7 +4991,7 @@ int stmmac_dvr_probe(struct device *device,
 						 priv->plat->bsp_priv);
 
 		if (ret < 0)
-			return ret;
+			goto error_serdes_powerup;
 	}
 
 #ifdef CONFIG_DEBUG_FS
@@ -5000,6 +5000,8 @@ int stmmac_dvr_probe(struct device *device,
 
 	return ret;
 
+error_serdes_powerup:
+	unregister_netdev(ndev);
 error_netdev_register:
 	phylink_destroy(priv->phylink);
 error_phy_setup:
-- 
2.26.2

[PATCH v3 2/7] stmmac: intel: Fix clock handling on error and remove paths

[Andy Shevchenko]

clk_prepare_enable() might fail, we have to check its returned value.
Besides that we have to call clk_disable_unprepare() on the error and
remove paths. Do above in the dwmac-intel driver.

While at it, remove leftover in stmmac_pci and remove unneeded condition
for NULL-aware clk_unregister_fixed_rate() call.

Fixes: 58da0cfa6cf1 ("net: stmmac: create dwmac-intel.c to contain all Intel platform")
Cc: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 .../net/ethernet/stmicro/stmmac/dwmac-intel.c | 20 +++++++++++++++----
 .../net/ethernet/stmicro/stmmac/stmmac_pci.c  |  5 -----
 2 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 2e4aaedb93f580..d163c4b43da0fd 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -252,6 +252,7 @@ static void common_default_data(struct plat_stmmacenet_data *plat)
 static int intel_mgbe_common_data(struct pci_dev *pdev,
 				  struct plat_stmmacenet_data *plat)
 {
+	int ret;
 	int i;
 
 	plat->clk_csr = 5;
@@ -324,7 +325,12 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 		dev_warn(&pdev->dev, "Fail to register stmmac-clk\n");
 		plat->stmmac_clk = NULL;
 	}
-	clk_prepare_enable(plat->stmmac_clk);
+
+	ret = clk_prepare_enable(plat->stmmac_clk);
+	if (ret) {
+		clk_unregister_fixed_rate(plat->stmmac_clk);
+		return ret;
+	}
 
 	/* Set default value for multicast hash bins */
 	plat->multicast_filter_bins = HASH_TABLE_SIZE;
@@ -657,7 +663,13 @@ static int intel_eth_pci_probe(struct pci_dev *pdev,
 	res.wol_irq = pdev->irq;
 	res.irq = pdev->irq;
 
-	return stmmac_dvr_probe(&pdev->dev, plat, &res);
+	ret = stmmac_dvr_probe(&pdev->dev, plat, &res);
+	if (ret) {
+		clk_disable_unprepare(plat->stmmac_clk);
+		clk_unregister_fixed_rate(plat->stmmac_clk);
+	}
+
+	return ret;
 }
 
 /**
@@ -675,8 +687,8 @@ static void intel_eth_pci_remove(struct pci_dev *pdev)
 
 	stmmac_dvr_remove(&pdev->dev);
 
-	if (priv->plat->stmmac_clk)
-		clk_unregister_fixed_rate(priv->plat->stmmac_clk);
+	clk_disable_unprepare(priv->plat->stmmac_clk);
+	clk_unregister_fixed_rate(priv->plat->stmmac_clk);
 
 	for (i = 0; i < PCI_STD_NUM_BARS; i++) {
 		if (pci_resource_len(pdev, i) == 0)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
index 3fb21f7ac9fbee..272cb47af9f2ea 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
@@ -217,15 +217,10 @@ static int stmmac_pci_probe(struct pci_dev *pdev,
  */
 static void stmmac_pci_remove(struct pci_dev *pdev)
 {
-	struct net_device *ndev = dev_get_drvdata(&pdev->dev);
-	struct stmmac_priv *priv = netdev_priv(ndev);
 	int i;
 
 	stmmac_dvr_remove(&pdev->dev);
 
-	if (priv->plat->stmmac_clk)
-		clk_unregister_fixed_rate(priv->plat->stmmac_clk);
-
 	for (i = 0; i < PCI_STD_NUM_BARS; i++) {
 		if (pci_resource_len(pdev, i) == 0)
 			continue;
-- 
2.26.2

[PATCH v3 3/7] stmmac: intel: Remove unnecessary loop for PCI BARs

[Andy Shevchenko]

Copy'n'paste without thinking is not a good idea and in this case it brought
unnecessary loop over PCI BAR resources which was needed to workaround one of
STMicro RVP boards. Remove unnecessary loops from Intel driver.

Fixes: 58da0cfa6cf1 ("net: stmmac: create dwmac-intel.c to contain all Intel platform")
Cc: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 .../net/ethernet/stmicro/stmmac/dwmac-intel.c | 23 ++++---------------
 1 file changed, 5 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index d163c4b43da0fd..e9f94855949959 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -606,7 +606,6 @@ static int intel_eth_pci_probe(struct pci_dev *pdev,
 	struct intel_priv_data *intel_priv;
 	struct plat_stmmacenet_data *plat;
 	struct stmmac_resources res;
-	int i;
 	int ret;
 
 	intel_priv = devm_kzalloc(&pdev->dev, sizeof(*intel_priv),
@@ -637,15 +636,9 @@ static int intel_eth_pci_probe(struct pci_dev *pdev,
 		return ret;
 	}
 
-	/* Get the base address of device */
-	for (i = 0; i < PCI_STD_NUM_BARS; i++) {
-		if (pci_resource_len(pdev, i) == 0)
-			continue;
-		ret = pcim_iomap_regions(pdev, BIT(i), pci_name(pdev));
-		if (ret)
-			return ret;
-		break;
-	}
+	ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
+	if (ret)
+		return ret;
 
 	pci_set_master(pdev);
 
@@ -659,7 +652,7 @@ static int intel_eth_pci_probe(struct pci_dev *pdev,
 	pci_enable_msi(pdev);
 
 	memset(&res, 0, sizeof(res));
-	res.addr = pcim_iomap_table(pdev)[i];
+	res.addr = pcim_iomap_table(pdev)[0];
 	res.wol_irq = pdev->irq;
 	res.irq = pdev->irq;
 
@@ -683,19 +676,13 @@ static void intel_eth_pci_remove(struct pci_dev *pdev)
 {
 	struct net_device *ndev = dev_get_drvdata(&pdev->dev);
 	struct stmmac_priv *priv = netdev_priv(ndev);
-	int i;
 
 	stmmac_dvr_remove(&pdev->dev);
 
 	clk_disable_unprepare(priv->plat->stmmac_clk);
 	clk_unregister_fixed_rate(priv->plat->stmmac_clk);
 
-	for (i = 0; i < PCI_STD_NUM_BARS; i++) {
-		if (pci_resource_len(pdev, i) == 0)
-			continue;
-		pcim_iounmap_regions(pdev, BIT(i));
-		break;
-	}
+	pcim_iounmap_regions(pdev, BIT(0));
 
 	pci_disable_device(pdev);
 }
-- 
2.26.2

[PATCH v3 4/7] stmmac: intel: Convert to use pci_alloc_irq_vectors() API

[Andy Shevchenko]

pci_enable_msi() is deprecated API, thus, switch to modern
pci_alloc_irq_vectors().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index e9f94855949959..bb8bf31c1259ef 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -649,15 +649,18 @@ static int intel_eth_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		return ret;
 
-	pci_enable_msi(pdev);
+	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
+	if (ret < 0)
+		return ret;
 
 	memset(&res, 0, sizeof(res));
 	res.addr = pcim_iomap_table(pdev)[0];
-	res.wol_irq = pdev->irq;
-	res.irq = pdev->irq;
+	res.wol_irq = pci_irq_vector(pdev, 0);
+	res.irq = pci_irq_vector(pdev, 0);
 
 	ret = stmmac_dvr_probe(&pdev->dev, plat, &res);
 	if (ret) {
+		pci_free_irq_vectors(pdev);
 		clk_disable_unprepare(plat->stmmac_clk);
 		clk_unregister_fixed_rate(plat->stmmac_clk);
 	}
@@ -679,6 +682,8 @@ static void intel_eth_pci_remove(struct pci_dev *pdev)
 
 	stmmac_dvr_remove(&pdev->dev);
 
+	pci_free_irq_vectors(pdev);
+
 	clk_disable_unprepare(priv->plat->stmmac_clk);
 	clk_unregister_fixed_rate(priv->plat->stmmac_clk);
 
-- 
2.26.2

[PATCH v3 5/7] stmmac: intel: Eliminate useless conditions and variables

[Andy Shevchenko]

There are useless conditions like

	func()
	{
		...
		int ret;
		...
		ret = foo();
		if (ret)
			return ret;

		return 0;
	}

which may be replaced with direct return statement, what we have done here.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index bb8bf31c1259ef..b0d735e4c13ce2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -347,16 +347,11 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 static int ehl_common_data(struct pci_dev *pdev,
 			   struct plat_stmmacenet_data *plat)
 {
-	int ret;
-
 	plat->rx_queues_to_use = 8;
 	plat->tx_queues_to_use = 8;
 	plat->clk_ptp_rate = 200000000;
-	ret = intel_mgbe_common_data(pdev, plat);
-	if (ret)
-		return ret;
 
-	return 0;
+	return intel_mgbe_common_data(pdev, plat);
 }
 
 static int ehl_sgmii_data(struct pci_dev *pdev,
@@ -457,16 +452,11 @@ static struct stmmac_pci_info ehl_pse1_sgmii1g_pci_info = {
 static int tgl_common_data(struct pci_dev *pdev,
 			   struct plat_stmmacenet_data *plat)
 {
-	int ret;
-
 	plat->rx_queues_to_use = 6;
 	plat->tx_queues_to_use = 4;
 	plat->clk_ptp_rate = 200000000;
-	ret = intel_mgbe_common_data(pdev, plat);
-	if (ret)
-		return ret;
 
-	return 0;
+	return intel_mgbe_common_data(pdev, plat);
 }
 
 static int tgl_sgmii_data(struct pci_dev *pdev,
-- 
2.26.2

[PATCH v3 6/7] stmmac: intel: Fix indentation to put on one line affected code

[Andy Shevchenko]

There is no competition to get more LOCs into the kernel, and driver can look
better and have improved readability without those additional line breaks.

While at it, shorten info structures that they are all PCI, at the end it's
a PCI driver for Intel hardware.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 .../net/ethernet/stmicro/stmmac/dwmac-intel.c | 92 +++++++------------
 1 file changed, 32 insertions(+), 60 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index b0d735e4c13ce2..2ac9dfb3462c69 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -83,13 +83,9 @@ static int intel_serdes_powerup(struct net_device *ndev, void *priv_data)
 	serdes_phy_addr = intel_priv->mdio_adhoc_addr;
 
 	/* assert clk_req */
-	data = mdiobus_read(priv->mii, serdes_phy_addr,
-			    SERDES_GCR0);
-
+	data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
 	data |= SERDES_PLL_CLK;
-
-	mdiobus_write(priv->mii, serdes_phy_addr,
-		      SERDES_GCR0, data);
+	mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
 
 	/* check for clk_ack assertion */
 	data = serdes_status_poll(priv, serdes_phy_addr,
@@ -103,13 +99,9 @@ static int intel_serdes_powerup(struct net_device *ndev, void *priv_data)
 	}
 
 	/* assert lane reset */
-	data = mdiobus_read(priv->mii, serdes_phy_addr,
-			    SERDES_GCR0);
-
+	data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
 	data |= SERDES_RST;
-
-	mdiobus_write(priv->mii, serdes_phy_addr,
-		      SERDES_GCR0, data);
+	mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
 
 	/* check for assert lane reset reflection */
 	data = serdes_status_poll(priv, serdes_phy_addr,
@@ -123,14 +115,12 @@ static int intel_serdes_powerup(struct net_device *ndev, void *priv_data)
 	}
 
 	/*  move power state to P0 */
-	data = mdiobus_read(priv->mii, serdes_phy_addr,
-			    SERDES_GCR0);
+	data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
 
 	data &= ~SERDES_PWR_ST_MASK;
 	data |= SERDES_PWR_ST_P0 << SERDES_PWR_ST_SHIFT;
 
-	mdiobus_write(priv->mii, serdes_phy_addr,
-		      SERDES_GCR0, data);
+	mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
 
 	/* Check for P0 state */
 	data = serdes_status_poll(priv, serdes_phy_addr,
@@ -159,14 +149,12 @@ static void intel_serdes_powerdown(struct net_device *ndev, void *intel_data)
 	serdes_phy_addr = intel_priv->mdio_adhoc_addr;
 
 	/*  move power state to P3 */
-	data = mdiobus_read(priv->mii, serdes_phy_addr,
-			    SERDES_GCR0);
+	data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
 
 	data &= ~SERDES_PWR_ST_MASK;
 	data |= SERDES_PWR_ST_P3 << SERDES_PWR_ST_SHIFT;
 
-	mdiobus_write(priv->mii, serdes_phy_addr,
-		      SERDES_GCR0, data);
+	mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
 
 	/* Check for P3 state */
 	data = serdes_status_poll(priv, serdes_phy_addr,
@@ -180,13 +168,9 @@ static void intel_serdes_powerdown(struct net_device *ndev, void *intel_data)
 	}
 
 	/* de-assert clk_req */
-	data = mdiobus_read(priv->mii, serdes_phy_addr,
-			    SERDES_GCR0);
-
+	data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
 	data &= ~SERDES_PLL_CLK;
-
-	mdiobus_write(priv->mii, serdes_phy_addr,
-		      SERDES_GCR0, data);
+	mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
 
 	/* check for clk_ack de-assert */
 	data = serdes_status_poll(priv, serdes_phy_addr,
@@ -200,13 +184,9 @@ static void intel_serdes_powerdown(struct net_device *ndev, void *intel_data)
 	}
 
 	/* de-assert lane reset */
-	data = mdiobus_read(priv->mii, serdes_phy_addr,
-			    SERDES_GCR0);
-
+	data = mdiobus_read(priv->mii, serdes_phy_addr, SERDES_GCR0);
 	data &= ~SERDES_RST;
-
-	mdiobus_write(priv->mii, serdes_phy_addr,
-		      SERDES_GCR0, data);
+	mdiobus_write(priv->mii, serdes_phy_addr, SERDES_GCR0, data);
 
 	/* check for de-assert lane reset reflection */
 	data = serdes_status_poll(priv, serdes_phy_addr,
@@ -367,7 +347,7 @@ static int ehl_sgmii_data(struct pci_dev *pdev,
 	return ehl_common_data(pdev, plat);
 }
 
-static struct stmmac_pci_info ehl_sgmii1g_pci_info = {
+static struct stmmac_pci_info ehl_sgmii1g_info = {
 	.setup = ehl_sgmii_data,
 };
 
@@ -381,7 +361,7 @@ static int ehl_rgmii_data(struct pci_dev *pdev,
 	return ehl_common_data(pdev, plat);
 }
 
-static struct stmmac_pci_info ehl_rgmii1g_pci_info = {
+static struct stmmac_pci_info ehl_rgmii1g_info = {
 	.setup = ehl_rgmii_data,
 };
 
@@ -400,7 +380,7 @@ static int ehl_pse0_rgmii1g_data(struct pci_dev *pdev,
 	return ehl_pse0_common_data(pdev, plat);
 }
 
-static struct stmmac_pci_info ehl_pse0_rgmii1g_pci_info = {
+static struct stmmac_pci_info ehl_pse0_rgmii1g_info = {
 	.setup = ehl_pse0_rgmii1g_data,
 };
 
@@ -413,7 +393,7 @@ static int ehl_pse0_sgmii1g_data(struct pci_dev *pdev,
 	return ehl_pse0_common_data(pdev, plat);
 }
 
-static struct stmmac_pci_info ehl_pse0_sgmii1g_pci_info = {
+static struct stmmac_pci_info ehl_pse0_sgmii1g_info = {
 	.setup = ehl_pse0_sgmii1g_data,
 };
 
@@ -432,7 +412,7 @@ static int ehl_pse1_rgmii1g_data(struct pci_dev *pdev,
 	return ehl_pse1_common_data(pdev, plat);
 }
 
-static struct stmmac_pci_info ehl_pse1_rgmii1g_pci_info = {
+static struct stmmac_pci_info ehl_pse1_rgmii1g_info = {
 	.setup = ehl_pse1_rgmii1g_data,
 };
 
@@ -445,7 +425,7 @@ static int ehl_pse1_sgmii1g_data(struct pci_dev *pdev,
 	return ehl_pse1_common_data(pdev, plat);
 }
 
-static struct stmmac_pci_info ehl_pse1_sgmii1g_pci_info = {
+static struct stmmac_pci_info ehl_pse1_sgmii1g_info = {
 	.setup = ehl_pse1_sgmii1g_data,
 };
 
@@ -470,7 +450,7 @@ static int tgl_sgmii_data(struct pci_dev *pdev,
 	return tgl_common_data(pdev, plat);
 }
 
-static struct stmmac_pci_info tgl_sgmii1g_pci_info = {
+static struct stmmac_pci_info tgl_sgmii1g_info = {
 	.setup = tgl_sgmii_data,
 };
 
@@ -573,7 +553,7 @@ static int quark_default_data(struct pci_dev *pdev,
 	return 0;
 }
 
-static const struct stmmac_pci_info quark_pci_info = {
+static const struct stmmac_pci_info quark_info = {
 	.setup = quark_default_data,
 };
 
@@ -598,8 +578,7 @@ static int intel_eth_pci_probe(struct pci_dev *pdev,
 	struct stmmac_resources res;
 	int ret;
 
-	intel_priv = devm_kzalloc(&pdev->dev, sizeof(*intel_priv),
-				  GFP_KERNEL);
+	intel_priv = devm_kzalloc(&pdev->dev, sizeof(*intel_priv), GFP_KERNEL);
 	if (!intel_priv)
 		return -ENOMEM;
 
@@ -736,26 +715,19 @@ static SIMPLE_DEV_PM_OPS(intel_eth_pm_ops, intel_eth_pci_suspend,
 #define PCI_DEVICE_ID_INTEL_TGL_SGMII1G_ID		0xa0ac
 
 static const struct pci_device_id intel_eth_pci_id_table[] = {
-	{ PCI_DEVICE_DATA(INTEL, QUARK_ID, &quark_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, EHL_RGMII1G_ID, &ehl_rgmii1g_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, EHL_SGMII1G_ID, &ehl_sgmii1g_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, EHL_SGMII2G5_ID, &ehl_sgmii1g_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, EHL_PSE0_RGMII1G_ID,
-			  &ehl_pse0_rgmii1g_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, EHL_PSE0_SGMII1G_ID,
-			  &ehl_pse0_sgmii1g_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, EHL_PSE0_SGMII2G5_ID,
-			  &ehl_pse0_sgmii1g_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, EHL_PSE1_RGMII1G_ID,
-			  &ehl_pse1_rgmii1g_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, EHL_PSE1_SGMII1G_ID,
-			  &ehl_pse1_sgmii1g_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, EHL_PSE1_SGMII2G5_ID,
-			  &ehl_pse1_sgmii1g_pci_info) },
-	{ PCI_DEVICE_DATA(INTEL, TGL_SGMII1G_ID, &tgl_sgmii1g_pci_info) },
+	{ PCI_DEVICE_DATA(INTEL, QUARK_ID, &quark_info) },
+	{ PCI_DEVICE_DATA(INTEL, EHL_RGMII1G_ID, &ehl_rgmii1g_info) },
+	{ PCI_DEVICE_DATA(INTEL, EHL_SGMII1G_ID, &ehl_sgmii1g_info) },
+	{ PCI_DEVICE_DATA(INTEL, EHL_SGMII2G5_ID, &ehl_sgmii1g_info) },
+	{ PCI_DEVICE_DATA(INTEL, EHL_PSE0_RGMII1G_ID, &ehl_pse0_rgmii1g_info) },
+	{ PCI_DEVICE_DATA(INTEL, EHL_PSE0_SGMII1G_ID, &ehl_pse0_sgmii1g_info) },
+	{ PCI_DEVICE_DATA(INTEL, EHL_PSE0_SGMII2G5_ID, &ehl_pse0_sgmii1g_info) },
+	{ PCI_DEVICE_DATA(INTEL, EHL_PSE1_RGMII1G_ID, &ehl_pse1_rgmii1g_info) },
+	{ PCI_DEVICE_DATA(INTEL, EHL_PSE1_SGMII1G_ID, &ehl_pse1_sgmii1g_info) },
+	{ PCI_DEVICE_DATA(INTEL, EHL_PSE1_SGMII2G5_ID, &ehl_pse1_sgmii1g_info) },
+	{ PCI_DEVICE_DATA(INTEL, TGL_SGMII1G_ID, &tgl_sgmii1g_info) },
 	{}
 };
-
 MODULE_DEVICE_TABLE(pci, intel_eth_pci_id_table);
 
 static struct pci_driver intel_eth_pci_driver = {
-- 
2.26.2

[PATCH v3 7/7] stmmac: intel: Place object in the Makefile according to the order

[Andy Shevchenko]

Follow the order for the platform drivers, i.e. generic object are going first.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/net/ethernet/stmicro/stmmac/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
index 5a6f265bc540fb..f9d024d6b69b58 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Makefile
+++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
@@ -30,6 +30,6 @@ obj-$(CONFIG_DWMAC_GENERIC)	+= dwmac-generic.o
 stmmac-platform-objs:= stmmac_platform.o
 dwmac-altr-socfpga-objs := altr_tse_pcs.o dwmac-socfpga.o
 
-obj-$(CONFIG_DWMAC_INTEL) += dwmac-intel.o
-obj-$(CONFIG_STMMAC_PCI) += stmmac-pci.o
+obj-$(CONFIG_STMMAC_PCI)	+= stmmac-pci.o
+obj-$(CONFIG_DWMAC_INTEL)	+= dwmac-intel.o
 stmmac-pci-objs:= stmmac_pci.o
-- 
2.26.2

Re: [PATCH v3 0/7] stmmac: intel: Fixes and cleanups after dwmac-intel split

[David Miller]

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Thu, 30 Apr 2020 18:02:47 +0300

> Seems the split of dwmac-intel didn't go well and on top of that new
> functionality in the driver has not been properly tested.
> 
> Patch 1 fixes a nasty kernel crash due to missed error handling.
> Patches 2 and 3 fix the incorrect split (clock and PCI bar handling).
> 
> Patch 4 converts driver to use new PCI IRQ allocation API.
> 
> The rest is a set of clean ups that may have been done in the initial
> submission.
> 
> Series has been tested on couple of Elkhart Lake platforms with different
> behaviour of ethernet hardware.
> 
> Changelog v3:
> - added the cover letter (David)
> - appended separate fix as a first patch
> - marked patches 2 and 3 with Fixes tag

Series applied, thank you.