[PATCH net-next v4 0/8] net: Simplified with scoped function

[PATCH net-next v4 0/8] net: Simplified with scoped function

[Jinjie Ruan]

Simplify with scoped for each OF child loop, as well as dev_err_probe().

Changes in v4:
- Drop the fix patch and __free() patch.
- Rebased on the fix patch has been stripped out.
- Remove the extra parentheses.
- Ensure Signed-off-by: should always be last.
- Add Reviewed-by.
- Update the cover letter commit message.

Changes in v3:
- Sort the variables, longest first, shortest last.
- Add Reviewed-by.

Changes in v2:
- Subject prefix: next -> net-next.
- Split __free() from scoped for each OF child loop clean.
- Fix use of_node_put() instead of __free() for the 5th patch.

Jinjie Ruan (8):
  net: stmmac: dwmac-sun8i: Use for_each_child_of_node_scoped()
  net: dsa: realtek: Use for_each_child_of_node_scoped()
  net: phy: Use for_each_available_child_of_node_scoped()
  net: mdio: mux-mmioreg: Simplified with scoped function
  net: mdio: mux-mmioreg: Simplified with dev_err_probe()
  net: mv643xx_eth: Simplify with scoped for each OF child loop
  net: dsa: microchip: Use scoped function to simplfy code
  net: bcmasp: Simplify with scoped for each OF child loop

 drivers/net/dsa/microchip/ksz_common.c        |  5 +-
 drivers/net/dsa/realtek/rtl8366rb.c           |  8 ++-
 drivers/net/ethernet/broadcom/asp2/bcmasp.c   |  5 +-
 drivers/net/ethernet/marvell/mv643xx_eth.c    |  5 +-
 .../net/ethernet/stmicro/stmmac/dwmac-sun8i.c |  6 +--
 drivers/net/mdio/mdio-mux-mmioreg.c           | 54 ++++++++-----------
 drivers/net/phy/phy_device.c                  |  5 +-
 7 files changed, 35 insertions(+), 53 deletions(-)

-- 
2.34.1

[PATCH net-next v4 1/8] net: stmmac: dwmac-sun8i: Use for_each_child_of_node_scoped()

[Jinjie Ruan]

Avoid need to manually handle of_node_put() by using
for_each_child_of_node_scoped(), which can simplfy code.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v4:
- Add Reviewed-by.
- Signed-off-by: should always be last.
v3:
- Sort the variables, longest first, shortest last
- Add Reviewed-by.
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index cc93f73a380e..4a0ae92b3055 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -774,8 +774,8 @@ static int sun8i_dwmac_reset(struct stmmac_priv *priv)
 static int get_ephy_nodes(struct stmmac_priv *priv)
 {
 	struct sunxi_priv_data *gmac = priv->plat->bsp_priv;
-	struct device_node *mdio_mux, *iphynode;
 	struct device_node *mdio_internal;
+	struct device_node *mdio_mux;
 	int ret;
 
 	mdio_mux = of_get_child_by_name(priv->device->of_node, "mdio-mux");
@@ -793,7 +793,7 @@ static int get_ephy_nodes(struct stmmac_priv *priv)
 	}
 
 	/* Seek for internal PHY */
-	for_each_child_of_node(mdio_internal, iphynode) {
+	for_each_child_of_node_scoped(mdio_internal, iphynode) {
 		gmac->ephy_clk = of_clk_get(iphynode, 0);
 		if (IS_ERR(gmac->ephy_clk))
 			continue;
@@ -801,14 +801,12 @@ static int get_ephy_nodes(struct stmmac_priv *priv)
 		if (IS_ERR(gmac->rst_ephy)) {
 			ret = PTR_ERR(gmac->rst_ephy);
 			if (ret == -EPROBE_DEFER) {
-				of_node_put(iphynode);
 				of_node_put(mdio_internal);
 				return ret;
 			}
 			continue;
 		}
 		dev_info(priv->device, "Found internal PHY node\n");
-		of_node_put(iphynode);
 		of_node_put(mdio_internal);
 		return 0;
 	}
-- 
2.34.1

Re: [PATCH net-next v4 1/8] net: stmmac: dwmac-sun8i: Use for_each_child_of_node_scoped()

[Florian Fainelli]

On 8/29/2024 8:13 PM, Jinjie Ruan wrote:
> Avoid need to manually handle of_node_put() by using
> for_each_child_of_node_scoped(), which can simplfy code.
> 
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

[PATCH net-next v4 2/8] net: dsa: realtek: Use for_each_child_of_node_scoped()

[Jinjie Ruan]

Avoid need to manually handle of_node_put() by using
for_each_child_of_node_scoped(), which can simplfy code.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v4:
- Add Reviewed-by.
- Signed-off-by: should always be last.
v3:
- Sort the variables, longest first, shortest last
- Add Reviewed-by.
v2:
- Split into 2 patches.
---
 drivers/net/dsa/realtek/rtl8366rb.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/dsa/realtek/rtl8366rb.c b/drivers/net/dsa/realtek/rtl8366rb.c
index 9e821b42e5f3..11243f89c98a 100644
--- a/drivers/net/dsa/realtek/rtl8366rb.c
+++ b/drivers/net/dsa/realtek/rtl8366rb.c
@@ -1009,8 +1009,8 @@ static int rtl8366rb_setup_all_leds_off(struct realtek_priv *priv)
 
 static int rtl8366rb_setup_leds(struct realtek_priv *priv)
 {
-	struct device_node *leds_np, *led_np;
 	struct dsa_switch *ds = &priv->ds;
+	struct device_node *leds_np;
 	struct dsa_port *dp;
 	int ret = 0;
 
@@ -1025,13 +1025,11 @@ static int rtl8366rb_setup_leds(struct realtek_priv *priv)
 			continue;
 		}
 
-		for_each_child_of_node(leds_np, led_np) {
+		for_each_child_of_node_scoped(leds_np, led_np) {
 			ret = rtl8366rb_setup_led(priv, dp,
 						  of_fwnode_handle(led_np));
-			if (ret) {
-				of_node_put(led_np);
+			if (ret)
 				break;
-			}
 		}
 
 		of_node_put(leds_np);
-- 
2.34.1

Re: [PATCH net-next v4 2/8] net: dsa: realtek: Use for_each_child_of_node_scoped()

[Linus Walleij]

On Fri, Aug 30, 2024 at 5:06 AM Jinjie Ruan <ruanjinjie@huawei.com> wrote:

> Avoid need to manually handle of_node_put() by using
> for_each_child_of_node_scoped(), which can simplfy code.
>
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

Re: [PATCH net-next v4 2/8] net: dsa: realtek: Use for_each_child_of_node_scoped()

[Florian Fainelli]

On 8/29/2024 8:13 PM, Jinjie Ruan wrote:
> Avoid need to manually handle of_node_put() by using
> for_each_child_of_node_scoped(), which can simplfy code.
> 
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

[PATCH net-next v4 3/8] net: phy: Use for_each_available_child_of_node_scoped()

[Jinjie Ruan]

Avoid need to manually handle of_node_put() by using
for_each_available_child_of_node_scoped(), which can simplfy code.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v4:
- Rebased on the previous fix patch has been stripped out.
- Add Reviewed-by.
v3:
- Add Reviewed-by
v2
- Split into 2 patches.
---
 drivers/net/phy/phy_device.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 8f5314c1fecc..7c4a09455493 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -3407,7 +3407,7 @@ static int of_phy_led(struct phy_device *phydev,
 static int of_phy_leds(struct phy_device *phydev)
 {
 	struct device_node *node = phydev->mdio.dev.of_node;
-	struct device_node *leds, *led;
+	struct device_node *leds;
 	int err;
 
 	if (!IS_ENABLED(CONFIG_OF_MDIO))
@@ -3420,10 +3420,9 @@ static int of_phy_leds(struct phy_device *phydev)
 	if (!leds)
 		return 0;
 
-	for_each_available_child_of_node(leds, led) {
+	for_each_available_child_of_node_scoped(leds, led) {
 		err = of_phy_led(phydev, led);
 		if (err) {
-			of_node_put(led);
 			phy_leds_unregister(phydev);
 			return err;
 		}
-- 
2.34.1

Re: [PATCH net-next v4 3/8] net: phy: Use for_each_available_child_of_node_scoped()

[Florian Fainelli]

On 8/29/2024 8:13 PM, Jinjie Ruan wrote:
> Avoid need to manually handle of_node_put() by using
> for_each_available_child_of_node_scoped(), which can simplfy code.
> 
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

[PATCH net-next v4 4/8] net: mdio: mux-mmioreg: Simplified with scoped function

[Jinjie Ruan]

Avoids the need for manual cleanup of_node_put() in early exits
from the loop by using for_each_available_child_of_node_scoped().

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v4:
- Add Reviewed-by.
v3:
- Add Reviewed-by.
v2:
- Split into 2 patches.
---
 drivers/net/mdio/mdio-mux-mmioreg.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/mdio/mdio-mux-mmioreg.c b/drivers/net/mdio/mdio-mux-mmioreg.c
index de08419d0c98..4d87e61fec7b 100644
--- a/drivers/net/mdio/mdio-mux-mmioreg.c
+++ b/drivers/net/mdio/mdio-mux-mmioreg.c
@@ -96,7 +96,7 @@ static int mdio_mux_mmioreg_switch_fn(int current_child, int desired_child,
 
 static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
 {
-	struct device_node *np2, *np = pdev->dev.of_node;
+	struct device_node *np = pdev->dev.of_node;
 	struct mdio_mux_mmioreg_state *s;
 	struct resource res;
 	const __be32 *iprop;
@@ -139,20 +139,18 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
 	 * Verify that the 'reg' property of each child MDIO bus does not
 	 * set any bits outside of the 'mask'.
 	 */
-	for_each_available_child_of_node(np, np2) {
+	for_each_available_child_of_node_scoped(np, np2) {
 		u64 reg;
 
 		if (of_property_read_reg(np2, 0, &reg, NULL)) {
 			dev_err(&pdev->dev, "mdio-mux child node %pOF is "
 				"missing a 'reg' property\n", np2);
-			of_node_put(np2);
 			return -ENODEV;
 		}
 		if ((u32)reg & ~s->mask) {
 			dev_err(&pdev->dev, "mdio-mux child node %pOF has "
 				"a 'reg' value with unmasked bits\n",
 				np2);
-			of_node_put(np2);
 			return -ENODEV;
 		}
 	}
-- 
2.34.1

Re: [PATCH net-next v4 4/8] net: mdio: mux-mmioreg: Simplified with scoped function

[Florian Fainelli]

On 8/29/2024 8:13 PM, Jinjie Ruan wrote:
> Avoids the need for manual cleanup of_node_put() in early exits
> from the loop by using for_each_available_child_of_node_scoped().
> 
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

[PATCH net-next v4 5/8] net: mdio: mux-mmioreg: Simplified with dev_err_probe()

[Jinjie Ruan]

Use the dev_err_probe() helper to simplify code.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v4:
- Remove the extra parentheses.
v3:
- Add Reviewed-by.
v2:
- Split into 2 patches.
---
 drivers/net/mdio/mdio-mux-mmioreg.c | 48 ++++++++++++-----------------
 1 file changed, 20 insertions(+), 28 deletions(-)

diff --git a/drivers/net/mdio/mdio-mux-mmioreg.c b/drivers/net/mdio/mdio-mux-mmioreg.c
index 4d87e61fec7b..b70e6d1ad429 100644
--- a/drivers/net/mdio/mdio-mux-mmioreg.c
+++ b/drivers/net/mdio/mdio-mux-mmioreg.c
@@ -109,30 +109,25 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	ret = of_address_to_resource(np, 0, &res);
-	if (ret) {
-		dev_err(&pdev->dev, "could not obtain memory map for node %pOF\n",
-			np);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret,
+				     "could not obtain memory map for node %pOF\n", np);
 	s->phys = res.start;
 
 	s->iosize = resource_size(&res);
 	if (s->iosize != sizeof(uint8_t) &&
 	    s->iosize != sizeof(uint16_t) &&
-	    s->iosize != sizeof(uint32_t)) {
-		dev_err(&pdev->dev, "only 8/16/32-bit registers are supported\n");
-		return -EINVAL;
-	}
+	    s->iosize != sizeof(uint32_t))
+		return dev_err_probe(&pdev->dev, -EINVAL,
+				     "only 8/16/32-bit registers are supported\n");
 
 	iprop = of_get_property(np, "mux-mask", &len);
-	if (!iprop || len != sizeof(uint32_t)) {
-		dev_err(&pdev->dev, "missing or invalid mux-mask property\n");
-		return -ENODEV;
-	}
-	if (be32_to_cpup(iprop) >= BIT(s->iosize * 8)) {
-		dev_err(&pdev->dev, "only 8/16/32-bit registers are supported\n");
-		return -EINVAL;
-	}
+	if (!iprop || len != sizeof(uint32_t))
+		return dev_err_probe(&pdev->dev, -ENODEV,
+				     "missing or invalid mux-mask property\n");
+	if (be32_to_cpup(iprop) >= BIT(s->iosize * 8))
+		return dev_err_probe(&pdev->dev, -EINVAL,
+				     "only 8/16/32-bit registers are supported\n");
 	s->mask = be32_to_cpup(iprop);
 
 	/*
@@ -142,17 +137,14 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
 	for_each_available_child_of_node_scoped(np, np2) {
 		u64 reg;
 
-		if (of_property_read_reg(np2, 0, &reg, NULL)) {
-			dev_err(&pdev->dev, "mdio-mux child node %pOF is "
-				"missing a 'reg' property\n", np2);
-			return -ENODEV;
-		}
-		if ((u32)reg & ~s->mask) {
-			dev_err(&pdev->dev, "mdio-mux child node %pOF has "
-				"a 'reg' value with unmasked bits\n",
-				np2);
-			return -ENODEV;
-		}
+		if (of_property_read_reg(np2, 0, &reg, NULL))
+			return dev_err_probe(&pdev->dev, -ENODEV,
+					     "mdio-mux child node %pOF is missing a 'reg' property\n",
+					     np2);
+		if ((u32)reg & ~s->mask)
+			return dev_err_probe(&pdev->dev, -ENODEV,
+					     "mdio-mux child node %pOF has a 'reg' value with unmasked bits\n",
+					     np2);
 	}
 
 	ret = mdio_mux_init(&pdev->dev, pdev->dev.of_node,
-- 
2.34.1

Re: [PATCH net-next v4 5/8] net: mdio: mux-mmioreg: Simplified with dev_err_probe()

[Florian Fainelli]

On 8/29/2024 8:13 PM, Jinjie Ruan wrote:
> Use the dev_err_probe() helper to simplify code.
> 
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
> ---
> v4:
> - Remove the extra parentheses.
> v3:
> - Add Reviewed-by.
> v2:
> - Split into 2 patches.
> ---
>   drivers/net/mdio/mdio-mux-mmioreg.c | 48 ++++++++++++-----------------
>   1 file changed, 20 insertions(+), 28 deletions(-)
> 
> diff --git a/drivers/net/mdio/mdio-mux-mmioreg.c b/drivers/net/mdio/mdio-mux-mmioreg.c
> index 4d87e61fec7b..b70e6d1ad429 100644
> --- a/drivers/net/mdio/mdio-mux-mmioreg.c
> +++ b/drivers/net/mdio/mdio-mux-mmioreg.c
> @@ -109,30 +109,25 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
>   		return -ENOMEM;
>   
>   	ret = of_address_to_resource(np, 0, &res);
> -	if (ret) {
> -		dev_err(&pdev->dev, "could not obtain memory map for node %pOF\n",
> -			np);
> -		return ret;
> -	}
> +	if (ret)
> +		return dev_err_probe(&pdev->dev, ret,
> +				     "could not obtain memory map for node %pOF\n", np);

Besides that one, which I don't think is even a candidate for resource 
deferral in the first place given the OF platform implementation, it 
does not seem to help that much to switch to dev_err_probe() other than 
just combining the error message and return code in a single statement. 
So it's fewer lines of codes, but it is not exactly what dev_err_probe() 
was originally intended for IMHO.

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

Re: [PATCH net-next v4 5/8] net: mdio: mux-mmioreg: Simplified with dev_err_probe()

[Andrew Lunn]

> > @@ -109,30 +109,25 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
> >   		return -ENOMEM;
> >   	ret = of_address_to_resource(np, 0, &res);
> > -	if (ret) {
> > -		dev_err(&pdev->dev, "could not obtain memory map for node %pOF\n",
> > -			np);
> > -		return ret;
> > -	}
> > +	if (ret)
> > +		return dev_err_probe(&pdev->dev, ret,
> > +				     "could not obtain memory map for node %pOF\n", np);
> 
> Besides that one, which I don't think is even a candidate for resource
> deferral in the first place given the OF platform implementation, it does
> not seem to help that much to switch to dev_err_probe() other than just
> combining the error message and return code in a single statement. So it's
> fewer lines of codes, but it is not exactly what dev_err_probe() was
> originally intended for IMHO.

Agreed. Rather than abuse dev_err_probe(), maybe a dev_err_error()
would be added with the same prototype, does the same formatting, and
skips all the PROBE_DEFFER logic. The problem would be, it would
encourage more of this churn.

	Andrew

[PATCH net-next v4 6/8] net: mv643xx_eth: Simplify with scoped for each OF child loop

[Jinjie Ruan]

Use scoped for_each_available_child_of_node_scoped() when iterating
over device nodes to make code a bit simpler.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v4:
- Add Reviewed-by.
v3:
- Add Reviewed-by.
---
 drivers/net/ethernet/marvell/mv643xx_eth.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index f35ae2c88091..9e80899546d9 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2802,7 +2802,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
 static int mv643xx_eth_shared_of_probe(struct platform_device *pdev)
 {
 	struct mv643xx_eth_shared_platform_data *pd;
-	struct device_node *pnp, *np = pdev->dev.of_node;
+	struct device_node *np = pdev->dev.of_node;
 	int ret;
 
 	/* bail out if not registered from DT */
@@ -2816,10 +2816,9 @@ static int mv643xx_eth_shared_of_probe(struct platform_device *pdev)
 
 	mv643xx_eth_property(np, "tx-checksum-limit", pd->tx_csum_limit);
 
-	for_each_available_child_of_node(np, pnp) {
+	for_each_available_child_of_node_scoped(np, pnp) {
 		ret = mv643xx_eth_shared_of_add_port(pdev, pnp);
 		if (ret) {
-			of_node_put(pnp);
 			mv643xx_eth_shared_of_remove();
 			return ret;
 		}
-- 
2.34.1

Re: [PATCH net-next v4 6/8] net: mv643xx_eth: Simplify with scoped for each OF child loop

[Florian Fainelli]

On 8/29/2024 8:13 PM, Jinjie Ruan wrote:
> Use scoped for_each_available_child_of_node_scoped() when iterating
> over device nodes to make code a bit simpler.
> 
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

[PATCH net-next v4 7/8] net: dsa: microchip: Use scoped function to simplfy code

[Jinjie Ruan]

Avoids the need for manual cleanup of_node_put() in early exits
from the loop by using for_each_available_child_of_node_scoped().

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v4:
- Add Reviewed-by.
v3:
- Add Reviewed-by.
v2:
- Split into 2 patches.
---
 drivers/net/dsa/microchip/ksz_common.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index cd3991792b69..86ed563938f6 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -4595,7 +4595,7 @@ static int ksz_parse_drive_strength(struct ksz_device *dev)
 int ksz_switch_register(struct ksz_device *dev)
 {
 	const struct ksz_chip_data *info;
-	struct device_node *port, *ports;
+	struct device_node *ports;
 	phy_interface_t interface;
 	unsigned int port_num;
 	int ret;
@@ -4681,12 +4681,11 @@ int ksz_switch_register(struct ksz_device *dev)
 		if (!ports)
 			ports = of_get_child_by_name(dev->dev->of_node, "ports");
 		if (ports) {
-			for_each_available_child_of_node(ports, port) {
+			for_each_available_child_of_node_scoped(ports, port) {
 				if (of_property_read_u32(port, "reg",
 							 &port_num))
 					continue;
 				if (!(dev->port_mask & BIT(port_num))) {
-					of_node_put(port);
 					of_node_put(ports);
 					return -EINVAL;
 				}
-- 
2.34.1

Re: [PATCH net-next v4 7/8] net: dsa: microchip: Use scoped function to simplfy code

[Florian Fainelli]

On 8/29/2024 8:13 PM, Jinjie Ruan wrote:
> Avoids the need for manual cleanup of_node_put() in early exits
> from the loop by using for_each_available_child_of_node_scoped().
> 
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

[PATCH net-next v4 8/8] net: bcmasp: Simplify with scoped for each OF child loop

[Jinjie Ruan]

Use scoped for_each_available_child_of_node_scoped() when
iterating over device nodes to make code a bit simpler.

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Justin Chen <justin.chen@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v4:
- Add Reviewed-by.
v3:
- Sort the variables, longest first, shortest last.
- Add Reviewed-by.
v2:
- Split into 2 patches.
---
 drivers/net/ethernet/broadcom/asp2/bcmasp.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.c b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
index 20c6529ec135..297c2682a9cf 100644
--- a/drivers/net/ethernet/broadcom/asp2/bcmasp.c
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
@@ -1300,9 +1300,9 @@ static void bcmasp_remove_intfs(struct bcmasp_priv *priv)
 
 static int bcmasp_probe(struct platform_device *pdev)
 {
-	struct device_node *ports_node, *intf_node;
 	const struct bcmasp_plat_data *pdata;
 	struct device *dev = &pdev->dev;
+	struct device_node *ports_node;
 	struct bcmasp_priv *priv;
 	struct bcmasp_intf *intf;
 	int ret = 0, count = 0;
@@ -1374,12 +1374,11 @@ static int bcmasp_probe(struct platform_device *pdev)
 	}
 
 	i = 0;
-	for_each_available_child_of_node(ports_node, intf_node) {
+	for_each_available_child_of_node_scoped(ports_node, intf_node) {
 		intf = bcmasp_interface_create(priv, intf_node, i);
 		if (!intf) {
 			dev_err(dev, "Cannot create eth interface %d\n", i);
 			bcmasp_remove_intfs(priv);
-			of_node_put(intf_node);
 			ret = -ENOMEM;
 			goto of_put_exit;
 		}
-- 
2.34.1

Re: [PATCH net-next v4 0/8] net: Simplified with scoped function

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net-next.git (main)
by Paolo Abeni <pabeni@redhat.com>:

On Fri, 30 Aug 2024 11:13:17 +0800 you wrote:
> Simplify with scoped for each OF child loop, as well as dev_err_probe().
> 
> Changes in v4:
> - Drop the fix patch and __free() patch.
> - Rebased on the fix patch has been stripped out.
> - Remove the extra parentheses.
> - Ensure Signed-off-by: should always be last.
> - Add Reviewed-by.
> - Update the cover letter commit message.
> 
> [...]

Here is the summary with links:
  - [net-next,v4,1/8] net: stmmac: dwmac-sun8i: Use for_each_child_of_node_scoped()
    https://git.kernel.org/netdev/net-next/c/81b4eb62878a
  - [net-next,v4,2/8] net: dsa: realtek: Use for_each_child_of_node_scoped()
    https://git.kernel.org/netdev/net-next/c/51c884291a94
  - [net-next,v4,3/8] net: phy: Use for_each_available_child_of_node_scoped()
    https://git.kernel.org/netdev/net-next/c/1dce520abd46
  - [net-next,v4,4/8] net: mdio: mux-mmioreg: Simplified with scoped function
    https://git.kernel.org/netdev/net-next/c/b00f7f4f8e93
  - [net-next,v4,5/8] net: mdio: mux-mmioreg: Simplified with dev_err_probe()
    https://git.kernel.org/netdev/net-next/c/4078513fc86c
  - [net-next,v4,6/8] net: mv643xx_eth: Simplify with scoped for each OF child loop
    https://git.kernel.org/netdev/net-next/c/3a3eea209e6d
  - [net-next,v4,7/8] net: dsa: microchip: Use scoped function to simplfy code
    https://git.kernel.org/netdev/net-next/c/f834d572b7e9
  - [net-next,v4,8/8] net: bcmasp: Simplify with scoped for each OF child loop
    https://git.kernel.org/netdev/net-next/c/e8ac8974451e

You are awesome, thank you!
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