[PATCH] powerpc: Convert to using %pOFn instead of device_node.name

[PATCH] powerpc: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 arch/powerpc/platforms/44x/fsp2.c             |  8 +++---
 arch/powerpc/platforms/cell/spu_manage.c      |  4 +--
 arch/powerpc/platforms/embedded6xx/wii.c      |  2 +-
 .../powerpc/platforms/powernv/opal-powercap.c |  3 +-
 .../platforms/powernv/opal-sensor-groups.c    |  4 +--
 .../powerpc/platforms/powernv/opal-sysparam.c |  2 +-
 arch/powerpc/platforms/pseries/hotplug-cpu.c  | 28 +++++++++----------
 arch/powerpc/platforms/pseries/ibmebus.c      |  2 +-
 arch/powerpc/platforms/pseries/vio.c          | 27 +++++++++---------
 9 files changed, 40 insertions(+), 40 deletions(-)

diff --git a/arch/powerpc/platforms/44x/fsp2.c b/arch/powerpc/platforms/44x/fsp2.c
index 04f0c73a9b4f..7a507f775308 100644
--- a/arch/powerpc/platforms/44x/fsp2.c
+++ b/arch/powerpc/platforms/44x/fsp2.c
@@ -210,15 +210,15 @@ static void node_irq_request(const char *compat, irq_handler_t errirq_handler)
 	for_each_compatible_node(np, NULL, compat) {
 		irq = irq_of_parse_and_map(np, 0);
 		if (irq == NO_IRQ) {
-			pr_err("device tree node %s is missing a interrupt",
-			      np->name);
+			pr_err("device tree node %pOFn is missing a interrupt",
+			      np);
 			return;
 		}
 
 		rc = request_irq(irq, errirq_handler, 0, np->name, np);
 		if (rc) {
-			pr_err("fsp_of_probe: request_irq failed: np=%s rc=%d",
-			      np->full_name, rc);
+			pr_err("fsp_of_probe: request_irq failed: np=%pOF rc=%d",
+			      np, rc);
 			return;
 		}
 	}
diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
index 5c409c98cca8..71ebf7f1bd62 100644
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -295,8 +295,8 @@ static int __init of_enumerate_spus(int (*fn)(void *data))
 	for_each_node_by_type(node, "spe") {
 		ret = fn(node);
 		if (ret) {
-			printk(KERN_WARNING "%s: Error initializing %s\n",
-				__func__, node->name);
+			printk(KERN_WARNING "%s: Error initializing %pOFn\n",
+				__func__, node);
 			of_node_put(node);
 			break;
 		}
diff --git a/arch/powerpc/platforms/embedded6xx/wii.c b/arch/powerpc/platforms/embedded6xx/wii.c
index 403523c061ba..ecf703ee3a76 100644
--- a/arch/powerpc/platforms/embedded6xx/wii.c
+++ b/arch/powerpc/platforms/embedded6xx/wii.c
@@ -112,7 +112,7 @@ static void __iomem *wii_ioremap_hw_regs(char *name, char *compatible)
 	}
 	error = of_address_to_resource(np, 0, &res);
 	if (error) {
-		pr_err("no valid reg found for %s\n", np->name);
+		pr_err("no valid reg found for %pOFn\n", np);
 		goto out_put;
 	}
 
diff --git a/arch/powerpc/platforms/powernv/opal-powercap.c b/arch/powerpc/platforms/powernv/opal-powercap.c
index badb29bde93f..d90ee4fc2c6a 100644
--- a/arch/powerpc/platforms/powernv/opal-powercap.c
+++ b/arch/powerpc/platforms/powernv/opal-powercap.c
@@ -199,7 +199,7 @@ void __init opal_powercap_init(void)
 		}
 
 		j = 0;
-		pcaps[i].pg.name = node->name;
+		pcaps[i].pg.name = kasprintf(GFP_KERNEL, "%pOFn", node);
 		if (has_min) {
 			powercap_add_attr(min, "powercap-min",
 					  &pcaps[i].pattrs[j]);
@@ -237,6 +237,7 @@ void __init opal_powercap_init(void)
 	while (--i >= 0) {
 		kfree(pcaps[i].pattrs);
 		kfree(pcaps[i].pg.attrs);
+		kfree(pcaps[i].pg.name);
 	}
 	kobject_put(powercap_kobj);
 out_pcaps:
diff --git a/arch/powerpc/platforms/powernv/opal-sensor-groups.c b/arch/powerpc/platforms/powernv/opal-sensor-groups.c
index f7d04b6a2d7a..179609220e6f 100644
--- a/arch/powerpc/platforms/powernv/opal-sensor-groups.c
+++ b/arch/powerpc/platforms/powernv/opal-sensor-groups.c
@@ -214,9 +214,9 @@ void __init opal_sensor_groups_init(void)
 		}
 
 		if (!of_property_read_u32(node, "ibm,chip-id", &chipid))
-			sprintf(sgs[i].name, "%s%d", node->name, chipid);
+			sprintf(sgs[i].name, "%pOFn%d", node, chipid);
 		else
-			sprintf(sgs[i].name, "%s", node->name);
+			sprintf(sgs[i].name, "%pOFn", node);
 
 		sgs[i].sg.name = sgs[i].name;
 		if (add_attr_group(ops, len, &sgs[i], sgid)) {
diff --git a/arch/powerpc/platforms/powernv/opal-sysparam.c b/arch/powerpc/platforms/powernv/opal-sysparam.c
index 9aa87df114fd..916a4b7b1bb5 100644
--- a/arch/powerpc/platforms/powernv/opal-sysparam.c
+++ b/arch/powerpc/platforms/powernv/opal-sysparam.c
@@ -194,7 +194,7 @@ void __init opal_sys_param_init(void)
 	count = of_property_count_strings(sysparam, "param-name");
 	if (count < 0) {
 		pr_err("SYSPARAM: No string found of property param-name in "
-				"the node %s\n", sysparam->name);
+				"the node %pOFn\n", sysparam);
 		goto out_param_buf;
 	}
 
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 6ef77caf7bcf..2f8e62163602 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -287,7 +287,7 @@ static int pseries_add_processor(struct device_node *np)
 
 	if (cpumask_empty(tmp)) {
 		printk(KERN_ERR "Unable to find space in cpu_present_mask for"
-		       " processor %s with %d thread(s)\n", np->name,
+		       " processor %pOFn with %d thread(s)\n", np,
 		       nthreads);
 		goto out_unlock;
 	}
@@ -481,8 +481,8 @@ static ssize_t dlpar_cpu_add(u32 drc_index)
 
 	if (rc) {
 		saved_rc = rc;
-		pr_warn("Failed to attach node %s, rc: %d, drc index: %x\n",
-			dn->name, rc, drc_index);
+		pr_warn("Failed to attach node %pOFn, rc: %d, drc index: %x\n",
+			dn, rc, drc_index);
 
 		rc = dlpar_release_drc(drc_index);
 		if (!rc)
@@ -494,8 +494,8 @@ static ssize_t dlpar_cpu_add(u32 drc_index)
 	rc = dlpar_online_cpu(dn);
 	if (rc) {
 		saved_rc = rc;
-		pr_warn("Failed to online cpu %s, rc: %d, drc index: %x\n",
-			dn->name, rc, drc_index);
+		pr_warn("Failed to online cpu %pOFn, rc: %d, drc index: %x\n",
+			dn, rc, drc_index);
 
 		rc = dlpar_detach_node(dn);
 		if (!rc)
@@ -504,7 +504,7 @@ static ssize_t dlpar_cpu_add(u32 drc_index)
 		return saved_rc;
 	}
 
-	pr_debug("Successfully added CPU %s, drc index: %x\n", dn->name,
+	pr_debug("Successfully added CPU %pOFn, drc index: %x\n", dn,
 		 drc_index);
 	return rc;
 }
@@ -570,19 +570,19 @@ static ssize_t dlpar_cpu_remove(struct device_node *dn, u32 drc_index)
 {
 	int rc;
 
-	pr_debug("Attempting to remove CPU %s, drc index: %x\n",
-		 dn->name, drc_index);
+	pr_debug("Attempting to remove CPU %pOFn, drc index: %x\n",
+		 dn, drc_index);
 
 	rc = dlpar_offline_cpu(dn);
 	if (rc) {
-		pr_warn("Failed to offline CPU %s, rc: %d\n", dn->name, rc);
+		pr_warn("Failed to offline CPU %pOFn, rc: %d\n", dn, rc);
 		return -EINVAL;
 	}
 
 	rc = dlpar_release_drc(drc_index);
 	if (rc) {
-		pr_warn("Failed to release drc (%x) for CPU %s, rc: %d\n",
-			drc_index, dn->name, rc);
+		pr_warn("Failed to release drc (%x) for CPU %pOFn, rc: %d\n",
+			drc_index, dn, rc);
 		dlpar_online_cpu(dn);
 		return rc;
 	}
@@ -591,7 +591,7 @@ static ssize_t dlpar_cpu_remove(struct device_node *dn, u32 drc_index)
 	if (rc) {
 		int saved_rc = rc;
 
-		pr_warn("Failed to detach CPU %s, rc: %d", dn->name, rc);
+		pr_warn("Failed to detach CPU %pOFn, rc: %d", dn, rc);
 
 		rc = dlpar_acquire_drc(drc_index);
 		if (!rc)
@@ -662,8 +662,8 @@ static int find_dlpar_cpus_to_remove(u32 *cpu_drcs, int cpus_to_remove)
 		rc = of_property_read_u32(dn, "ibm,my-drc-index",
 					  &cpu_drcs[cpus_found - 1]);
 		if (rc) {
-			pr_warn("Error occurred getting drc-index for %s\n",
-				dn->name);
+			pr_warn("Error occurred getting drc-index for %pOFn\n",
+				dn);
 			of_node_put(dn);
 			return -1;
 		}
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index c7c1140c13b6..5b4a56131904 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -404,7 +404,7 @@ static ssize_t name_show(struct device *dev,
 	struct platform_device *ofdev;
 
 	ofdev = to_platform_device(dev);
-	return sprintf(buf, "%s\n", ofdev->dev.of_node->name);
+	return sprintf(buf, "%pOFn\n", ofdev->dev.of_node);
 }
 static DEVICE_ATTR_RO(name);
 
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 49e04ec19238..88f1ad1d6309 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -1349,7 +1349,6 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 	struct device_node *parent_node;
 	const __be32 *prop;
 	enum vio_dev_family family;
-	const char *of_node_name = of_node->name ? of_node->name : "<unknown>";
 
 	/*
 	 * Determine if this node is a under the /vdevice node or under the
@@ -1362,24 +1361,24 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 		else if (!strcmp(parent_node->type, "vdevice"))
 			family = VDEVICE;
 		else {
-			pr_warn("%s: parent(%pOF) of %s not recognized.\n",
+			pr_warn("%s: parent(%pOF) of %pOFn not recognized.\n",
 					__func__,
 					parent_node,
-					of_node_name);
+					of_node);
 			of_node_put(parent_node);
 			return NULL;
 		}
 		of_node_put(parent_node);
 	} else {
-		pr_warn("%s: could not determine the parent of node %s.\n",
-				__func__, of_node_name);
+		pr_warn("%s: could not determine the parent of node %pOFn.\n",
+				__func__, of_node);
 		return NULL;
 	}
 
 	if (family == PFO) {
 		if (of_get_property(of_node, "interrupt-controller", NULL)) {
-			pr_debug("%s: Skipping the interrupt controller %s.\n",
-					__func__, of_node_name);
+			pr_debug("%s: Skipping the interrupt controller %pOFn.\n",
+					__func__, of_node);
 			return NULL;
 		}
 	}
@@ -1399,15 +1398,15 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 		if (of_node->type != NULL)
 			viodev->type = of_node->type;
 		else {
-			pr_warn("%s: node %s is missing the 'device_type' "
-					"property.\n", __func__, of_node_name);
+			pr_warn("%s: node %pOFn is missing the 'device_type' "
+					"property.\n", __func__, of_node);
 			goto out;
 		}
 
 		prop = of_get_property(of_node, "reg", NULL);
 		if (prop == NULL) {
-			pr_warn("%s: node %s missing 'reg'\n",
-					__func__, of_node_name);
+			pr_warn("%s: node %pOFn missing 'reg'\n",
+					__func__, of_node);
 			goto out;
 		}
 		unit_address = of_read_number(prop, 1);
@@ -1422,8 +1421,8 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 		if (prop != NULL)
 			viodev->resource_id = of_read_number(prop, 1);
 
-		dev_set_name(&viodev->dev, "%s", of_node_name);
-		viodev->type = of_node_name;
+		dev_set_name(&viodev->dev, "%pOFn", of_node);
+		viodev->type = dev_name(&viodev->dev);
 		viodev->irq = 0;
 	}
 
@@ -1694,7 +1693,7 @@ struct vio_dev *vio_find_node(struct device_node *vnode)
 		snprintf(kobj_name, sizeof(kobj_name), "%x",
 			 (uint32_t)of_read_number(prop, 1));
 	} else if (!strcmp(dev_type, "ibm,platform-facilities"))
-		snprintf(kobj_name, sizeof(kobj_name), "%s", vnode->name);
+		snprintf(kobj_name, sizeof(kobj_name), "%pOFn", vnode);
 	else
 		return NULL;
 
-- 
2.17.1

Re: powerpc: Convert to using %pOFn instead of device_node.name

[Michael Ellerman]

On Tue, 2018-08-28 at 01:52:07 UTC, Rob Herring wrote:
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.
> 
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: linuxppc-dev@lists.ozlabs.org
> Signed-off-by: Rob Herring <robh@kernel.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/b9ef7b4b867f56114bedbe6bf104cf

cheers

[PATCH] i2c: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Peter Rosin <peda@axentia.se>
Cc: linux-i2c@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/i2c/busses/i2c-powermac.c | 15 ++++++++-------
 drivers/i2c/muxes/i2c-mux-gpmux.c |  4 ++--
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index f2a2067525ef..b706fd136ca5 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -390,7 +390,6 @@ static int i2c_powermac_probe(struct platform_device *dev)
 	struct pmac_i2c_bus *bus = dev_get_platdata(&dev->dev);
 	struct device_node *parent = NULL;
 	struct i2c_adapter *adapter;
-	const char *basename;
 	int rc;
 
 	if (bus == NULL)
@@ -407,23 +406,25 @@ static int i2c_powermac_probe(struct platform_device *dev)
 		parent = of_get_parent(pmac_i2c_get_controller(bus));
 		if (parent == NULL)
 			return -EINVAL;
-		basename = parent->name;
+		snprintf(adapter->name, sizeof(adapter->name), "%pOFn %d", 
+			 parent,
+			 pmac_i2c_get_channel(bus));
+		of_node_put(parent);
 		break;
 	case pmac_i2c_bus_pmu:
-		basename = "pmu";
+		snprintf(adapter->name, sizeof(adapter->name), "pmu %d",
+			 pmac_i2c_get_channel(bus));
 		break;
 	case pmac_i2c_bus_smu:
 		/* This is not what we used to do but I'm fixing drivers at
 		 * the same time as this change
 		 */
-		basename = "smu";
+		snprintf(adapter->name, sizeof(adapter->name), "smu %d",
+			 pmac_i2c_get_channel(bus));
 		break;
 	default:
 		return -EINVAL;
 	}
-	snprintf(adapter->name, sizeof(adapter->name), "%s %d", basename,
-		 pmac_i2c_get_channel(bus));
-	of_node_put(parent);
 
 	platform_set_drvdata(dev, adapter);
 	adapter->algo = &i2c_powermac_algorithm;
diff --git a/drivers/i2c/muxes/i2c-mux-gpmux.c b/drivers/i2c/muxes/i2c-mux-gpmux.c
index 92cf5f48afe6..f60b670deff7 100644
--- a/drivers/i2c/muxes/i2c-mux-gpmux.c
+++ b/drivers/i2c/muxes/i2c-mux-gpmux.c
@@ -120,8 +120,8 @@ static int i2c_mux_probe(struct platform_device *pdev)
 
 		ret = of_property_read_u32(child, "reg", &chan);
 		if (ret < 0) {
-			dev_err(dev, "no reg property for node '%s'\n",
-				child->name);
+			dev_err(dev, "no reg property for node '%pOFn'\n",
+				child);
 			goto err_children;
 		}
 
-- 
2.17.1

Re: [PATCH] i2c: Convert to using %pOFn instead of device_node.name

[Peter Rosin]

On 2018-08-28 03:52, Rob Herring wrote:
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.
> 
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Peter Rosin <peda@axentia.se>
> Cc: linux-i2c@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>  drivers/i2c/busses/i2c-powermac.c | 15 ++++++++-------
>  drivers/i2c/muxes/i2c-mux-gpmux.c |  4 ++--
>  2 files changed, 10 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
> index f2a2067525ef..b706fd136ca5 100644
> --- a/drivers/i2c/busses/i2c-powermac.c
> +++ b/drivers/i2c/busses/i2c-powermac.c
> @@ -390,7 +390,6 @@ static int i2c_powermac_probe(struct platform_device *dev)
>  	struct pmac_i2c_bus *bus = dev_get_platdata(&dev->dev);
>  	struct device_node *parent = NULL;

Lose the initializer...

>  	struct i2c_adapter *adapter;
> -	const char *basename;
>  	int rc;
>  
>  	if (bus == NULL)
> @@ -407,23 +406,25 @@ static int i2c_powermac_probe(struct platform_device *dev)
>  		parent = of_get_parent(pmac_i2c_get_controller(bus));
>  		if (parent == NULL)
>  			return -EINVAL;
> -		basename = parent->name;
> +		snprintf(adapter->name, sizeof(adapter->name), "%pOFn %d", 
> +			 parent,
> +			 pmac_i2c_get_channel(bus));

...and I would have written "parent, pmac_i2c_get_channel(bus));" on one line,
but maybe that's just me.

Anyway, with the initializer fix,

Reviewed-by: Peter Rosin <peda@axentia.se>

(Wolfram, no need to split this, just take it in full.)

Cheers,
Peter

> +		of_node_put(parent);
>  		break;
>  	case pmac_i2c_bus_pmu:
> -		basename = "pmu";
> +		snprintf(adapter->name, sizeof(adapter->name), "pmu %d",
> +			 pmac_i2c_get_channel(bus));
>  		break;
>  	case pmac_i2c_bus_smu:
>  		/* This is not what we used to do but I'm fixing drivers at
>  		 * the same time as this change
>  		 */
> -		basename = "smu";
> +		snprintf(adapter->name, sizeof(adapter->name), "smu %d",
> +			 pmac_i2c_get_channel(bus));
>  		break;
>  	default:
>  		return -EINVAL;
>  	}
> -	snprintf(adapter->name, sizeof(adapter->name), "%s %d", basename,
> -		 pmac_i2c_get_channel(bus));
> -	of_node_put(parent);
>  
>  	platform_set_drvdata(dev, adapter);
>  	adapter->algo = &i2c_powermac_algorithm;
> diff --git a/drivers/i2c/muxes/i2c-mux-gpmux.c b/drivers/i2c/muxes/i2c-mux-gpmux.c
> index 92cf5f48afe6..f60b670deff7 100644
> --- a/drivers/i2c/muxes/i2c-mux-gpmux.c
> +++ b/drivers/i2c/muxes/i2c-mux-gpmux.c
> @@ -120,8 +120,8 @@ static int i2c_mux_probe(struct platform_device *pdev)
>  
>  		ret = of_property_read_u32(child, "reg", &chan);
>  		if (ret < 0) {
> -			dev_err(dev, "no reg property for node '%s'\n",
> -				child->name);
> +			dev_err(dev, "no reg property for node '%pOFn'\n",
> +				child);
>  			goto err_children;
>  		}
>  
> 

Re: [PATCH] i2c: Convert to using %pOFn instead of device_node.name

[Rob Herring]

On Wed, Aug 29, 2018 at 1:03 PM Peter Rosin <peda@axentia.se> wrote:
>
> On 2018-08-28 03:52, Rob Herring wrote:
> > In preparation to remove the node name pointer from struct device_node,
> > convert printf users to use the %pOFn format specifier.
> >
> > Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> > Cc: Paul Mackerras <paulus@samba.org>
> > Cc: Michael Ellerman <mpe@ellerman.id.au>
> > Cc: Peter Rosin <peda@axentia.se>
> > Cc: linux-i2c@vger.kernel.org
> > Cc: linuxppc-dev@lists.ozlabs.org
> > Signed-off-by: Rob Herring <robh@kernel.org>
> > ---
> >  drivers/i2c/busses/i2c-powermac.c | 15 ++++++++-------
> >  drivers/i2c/muxes/i2c-mux-gpmux.c |  4 ++--
> >  2 files changed, 10 insertions(+), 9 deletions(-)
> >
> > diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
> > index f2a2067525ef..b706fd136ca5 100644
> > --- a/drivers/i2c/busses/i2c-powermac.c
> > +++ b/drivers/i2c/busses/i2c-powermac.c
> > @@ -390,7 +390,6 @@ static int i2c_powermac_probe(struct platform_device *dev)
> >       struct pmac_i2c_bus *bus = dev_get_platdata(&dev->dev);
> >       struct device_node *parent = NULL;
>
> Lose the initializer...

That's pretty much unrelated though. I'd have to write "Also, remove
the unnecessary parent pointer init" in the commit message and we all
know "Also" is a clue for belongs in a separate patch.

Rob

Re: [PATCH] i2c: Convert to using %pOFn instead of device_node.name

[Peter Rosin]

On 2018-08-29 20:42, Rob Herring wrote:
> On Wed, Aug 29, 2018 at 1:03 PM Peter Rosin <peda@axentia.se> wrote:
>>
>> On 2018-08-28 03:52, Rob Herring wrote:
>>> In preparation to remove the node name pointer from struct device_node,
>>> convert printf users to use the %pOFn format specifier.
>>>
>>> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
>>> Cc: Paul Mackerras <paulus@samba.org>
>>> Cc: Michael Ellerman <mpe@ellerman.id.au>
>>> Cc: Peter Rosin <peda@axentia.se>
>>> Cc: linux-i2c@vger.kernel.org
>>> Cc: linuxppc-dev@lists.ozlabs.org
>>> Signed-off-by: Rob Herring <robh@kernel.org>
>>> ---
>>>  drivers/i2c/busses/i2c-powermac.c | 15 ++++++++-------
>>>  drivers/i2c/muxes/i2c-mux-gpmux.c |  4 ++--
>>>  2 files changed, 10 insertions(+), 9 deletions(-)
>>>
>>> diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
>>> index f2a2067525ef..b706fd136ca5 100644
>>> --- a/drivers/i2c/busses/i2c-powermac.c
>>> +++ b/drivers/i2c/busses/i2c-powermac.c
>>> @@ -390,7 +390,6 @@ static int i2c_powermac_probe(struct platform_device *dev)
>>>       struct pmac_i2c_bus *bus = dev_get_platdata(&dev->dev);
>>>       struct device_node *parent = NULL;
>>
>> Lose the initializer...
> 
> That's pretty much unrelated though.

I disagree. If you remove the need for the initializer, it's very much
related to also remove the initializer.

> I'd have to write "Also, remove
> the unnecessary parent pointer init" in the commit message and we all
> know "Also" is a clue for belongs in a separate patch.

How about: "This makes the parent pointer initializer redundant, lose it."

See, no "Also" in there, and no separate patch needed. Or don't mention it
at all.

Cheers,
Peter

Re: [PATCH] i2c: Convert to using %pOFn instead of device_node.name

[Rob Herring]

On Wed, Aug 29, 2018 at 7:25 PM Peter Rosin <peda@axentia.se> wrote:
>
> On 2018-08-29 20:42, Rob Herring wrote:
> > On Wed, Aug 29, 2018 at 1:03 PM Peter Rosin <peda@axentia.se> wrote:
> >>
> >> On 2018-08-28 03:52, Rob Herring wrote:
> >>> In preparation to remove the node name pointer from struct device_node,
> >>> convert printf users to use the %pOFn format specifier.
> >>>
> >>> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> >>> Cc: Paul Mackerras <paulus@samba.org>
> >>> Cc: Michael Ellerman <mpe@ellerman.id.au>
> >>> Cc: Peter Rosin <peda@axentia.se>
> >>> Cc: linux-i2c@vger.kernel.org
> >>> Cc: linuxppc-dev@lists.ozlabs.org
> >>> Signed-off-by: Rob Herring <robh@kernel.org>
> >>> ---
> >>>  drivers/i2c/busses/i2c-powermac.c | 15 ++++++++-------
> >>>  drivers/i2c/muxes/i2c-mux-gpmux.c |  4 ++--
> >>>  2 files changed, 10 insertions(+), 9 deletions(-)
> >>>
> >>> diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
> >>> index f2a2067525ef..b706fd136ca5 100644
> >>> --- a/drivers/i2c/busses/i2c-powermac.c
> >>> +++ b/drivers/i2c/busses/i2c-powermac.c
> >>> @@ -390,7 +390,6 @@ static int i2c_powermac_probe(struct platform_device *dev)
> >>>       struct pmac_i2c_bus *bus = dev_get_platdata(&dev->dev);
> >>>       struct device_node *parent = NULL;
> >>
> >> Lose the initializer...
> >
> > That's pretty much unrelated though.
>
> I disagree. If you remove the need for the initializer, it's very much
> related to also remove the initializer.

You're right. I'd stared at it a bit and missed that in fact parent is
only accessed within the case statement.

Rob

[PATCH] macintosh: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/macintosh/macio_sysfs.c           | 8 +++++++-
 drivers/macintosh/windfarm_smu_controls.c | 4 ++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/macintosh/macio_sysfs.c b/drivers/macintosh/macio_sysfs.c
index ca4fcffe454b..d2451e58acb9 100644
--- a/drivers/macintosh/macio_sysfs.c
+++ b/drivers/macintosh/macio_sysfs.c
@@ -58,7 +58,13 @@ static ssize_t devspec_show(struct device *dev,
 static DEVICE_ATTR_RO(modalias);
 static DEVICE_ATTR_RO(devspec);
 
-macio_config_of_attr (name, "%s\n");
+static ssize_t name_show(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%pOFn\n", dev->of_node);
+}
+static DEVICE_ATTR_RO(name);
+
 macio_config_of_attr (type, "%s\n");
 
 static struct attribute *macio_dev_attrs[] = {
diff --git a/drivers/macintosh/windfarm_smu_controls.c b/drivers/macintosh/windfarm_smu_controls.c
index d174c7437337..86d65462a61c 100644
--- a/drivers/macintosh/windfarm_smu_controls.c
+++ b/drivers/macintosh/windfarm_smu_controls.c
@@ -277,7 +277,7 @@ static int __init smu_controls_init(void)
 		fct = smu_fan_create(fan, 0);
 		if (fct == NULL) {
 			printk(KERN_WARNING "windfarm: Failed to create SMU "
-			       "RPM fan %s\n", fan->name);
+			       "RPM fan %pOFn\n", fan);
 			continue;
 		}
 		list_add(&fct->link, &smu_fans);
@@ -296,7 +296,7 @@ static int __init smu_controls_init(void)
 		fct = smu_fan_create(fan, 1);
 		if (fct == NULL) {
 			printk(KERN_WARNING "windfarm: Failed to create SMU "
-			       "PWM fan %s\n", fan->name);
+			       "PWM fan %pOFn\n", fan);
 			continue;
 		}
 		list_add(&fct->link, &smu_fans);
-- 
2.17.1

[PATCH] misc: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Cc: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/misc/cxl/flash.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/cxl/flash.c b/drivers/misc/cxl/flash.c
index 43917898fb9a..4d6836f19489 100644
--- a/drivers/misc/cxl/flash.c
+++ b/drivers/misc/cxl/flash.c
@@ -92,8 +92,8 @@ static int update_property(struct device_node *dn, const char *name,
 
 	val = (u32 *)new_prop->value;
 	rc = cxl_update_properties(dn, new_prop);
-	pr_devel("%s: update property (%s, length: %i, value: %#x)\n",
-		  dn->name, name, vd, be32_to_cpu(*val));
+	pr_devel("%pOFn: update property (%s, length: %i, value: %#x)\n",
+		  dn, name, vd, be32_to_cpu(*val));
 
 	if (rc) {
 		kfree(new_prop->name);
-- 
2.17.1

Re: [PATCH] misc: Convert to using %pOFn instead of device_node.name

[Andrew Donnellan]

On 28/08/18 11:52, Rob Herring wrote:
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.
> 
> Cc: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
> Cc: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: linuxppc-dev@lists.ozlabs.org
> Signed-off-by: Rob Herring <robh@kernel.org>

Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>


-- 
Andrew Donnellan              OzLabs, ADL Canberra
andrew.donnellan@au1.ibm.com  IBM Australia Limited

[PATCH] soc: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Qiang Zhao <qiang.zhao@nxp.com>
Cc: Li Yang <leoyang.li@nxp.com>
Cc: Andy Gross <andy.gross@linaro.org>
Cc: David Brown <david.brown@linaro.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-soc@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/soc/dove/pmu.c            |  8 +++---
 drivers/soc/fsl/qe/qe_tdm.c       |  4 +--
 drivers/soc/qcom/apr.c            |  2 +-
 drivers/soc/rockchip/pm_domains.c | 44 +++++++++++++++----------------
 drivers/soc/tegra/pmc.c           | 12 ++++-----
 drivers/soc/ti/knav_dma.c         |  8 +++---
 drivers/soc/ti/knav_qmss_queue.c  |  8 +++---
 7 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/drivers/soc/dove/pmu.c b/drivers/soc/dove/pmu.c
index 5abb08ffb74d..ffc5311c0ed8 100644
--- a/drivers/soc/dove/pmu.c
+++ b/drivers/soc/dove/pmu.c
@@ -383,7 +383,7 @@ int __init dove_init_pmu(void)
 
 	domains_node = of_get_child_by_name(np_pmu, "domains");
 	if (!domains_node) {
-		pr_err("%s: failed to find domains sub-node\n", np_pmu->name);
+		pr_err("%pOFn: failed to find domains sub-node\n", np_pmu);
 		return 0;
 	}
 
@@ -396,7 +396,7 @@ int __init dove_init_pmu(void)
 	pmu->pmc_base = of_iomap(pmu->of_node, 0);
 	pmu->pmu_base = of_iomap(pmu->of_node, 1);
 	if (!pmu->pmc_base || !pmu->pmu_base) {
-		pr_err("%s: failed to map PMU\n", np_pmu->name);
+		pr_err("%pOFn: failed to map PMU\n", np_pmu);
 		iounmap(pmu->pmu_base);
 		iounmap(pmu->pmc_base);
 		kfree(pmu);
@@ -414,7 +414,7 @@ int __init dove_init_pmu(void)
 			break;
 
 		domain->pmu = pmu;
-		domain->base.name = kstrdup(np->name, GFP_KERNEL);
+		domain->base.name = kasprintf(GFP_KERNEL, "%pOFn", np);
 		if (!domain->base.name) {
 			kfree(domain);
 			break;
@@ -444,7 +444,7 @@ int __init dove_init_pmu(void)
 	/* Loss of the interrupt controller is not a fatal error. */
 	parent_irq = irq_of_parse_and_map(pmu->of_node, 0);
 	if (!parent_irq) {
-		pr_err("%s: no interrupt specified\n", np_pmu->name);
+		pr_err("%pOFn: no interrupt specified\n", np_pmu);
 	} else {
 		ret = dove_init_pmu_irq(pmu, parent_irq);
 		if (ret)
diff --git a/drivers/soc/fsl/qe/qe_tdm.c b/drivers/soc/fsl/qe/qe_tdm.c
index f744c214f680..f78c34647ca2 100644
--- a/drivers/soc/fsl/qe/qe_tdm.c
+++ b/drivers/soc/fsl/qe/qe_tdm.c
@@ -131,7 +131,7 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
 
 	pdev = of_find_device_by_node(np2);
 	if (!pdev) {
-		pr_err("%s: failed to lookup pdev\n", np2->name);
+		pr_err("%pOFn: failed to lookup pdev\n", np2);
 		of_node_put(np2);
 		return -EINVAL;
 	}
@@ -153,7 +153,7 @@ int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
 	pdev = of_find_device_by_node(np2);
 	if (!pdev) {
 		ret = -EINVAL;
-		pr_err("%s: failed to lookup pdev\n", np2->name);
+		pr_err("%pOFn: failed to lookup pdev\n", np2);
 		of_node_put(np2);
 		goto err_miss_siram_property;
 	}
diff --git a/drivers/soc/qcom/apr.c b/drivers/soc/qcom/apr.c
index 57af8a537332..4bda793ba6ae 100644
--- a/drivers/soc/qcom/apr.c
+++ b/drivers/soc/qcom/apr.c
@@ -219,7 +219,7 @@ static int apr_add_device(struct device *dev, struct device_node *np,
 	adev->domain_id = id->domain_id;
 	adev->version = id->svc_version;
 	if (np)
-		strncpy(adev->name, np->name, APR_NAME_SIZE);
+		snprintf(adev->name, APR_NAME_SIZE, "%pOFn", np);
 	else
 		strncpy(adev->name, id->name, APR_NAME_SIZE);
 
diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c
index 6dff8682155f..6f86a726bb45 100644
--- a/drivers/soc/rockchip/pm_domains.c
+++ b/drivers/soc/rockchip/pm_domains.c
@@ -392,21 +392,21 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
 	error = of_property_read_u32(node, "reg", &id);
 	if (error) {
 		dev_err(pmu->dev,
-			"%s: failed to retrieve domain id (reg): %d\n",
-			node->name, error);
+			"%pOFn: failed to retrieve domain id (reg): %d\n",
+			node, error);
 		return -EINVAL;
 	}
 
 	if (id >= pmu->info->num_domains) {
-		dev_err(pmu->dev, "%s: invalid domain id %d\n",
-			node->name, id);
+		dev_err(pmu->dev, "%pOFn: invalid domain id %d\n",
+			node, id);
 		return -EINVAL;
 	}
 
 	pd_info = &pmu->info->domain_info[id];
 	if (!pd_info) {
-		dev_err(pmu->dev, "%s: undefined domain id %d\n",
-			node->name, id);
+		dev_err(pmu->dev, "%pOFn: undefined domain id %d\n",
+			node, id);
 		return -EINVAL;
 	}
 
@@ -424,8 +424,8 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
 		if (!pd->clks)
 			return -ENOMEM;
 	} else {
-		dev_dbg(pmu->dev, "%s: doesn't have clocks: %d\n",
-			node->name, pd->num_clks);
+		dev_dbg(pmu->dev, "%pOFn: doesn't have clocks: %d\n",
+			node, pd->num_clks);
 		pd->num_clks = 0;
 	}
 
@@ -434,8 +434,8 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
 		if (IS_ERR(pd->clks[i].clk)) {
 			error = PTR_ERR(pd->clks[i].clk);
 			dev_err(pmu->dev,
-				"%s: failed to get clk at index %d: %d\n",
-				node->name, i, error);
+				"%pOFn: failed to get clk at index %d: %d\n",
+				node, i, error);
 			return error;
 		}
 	}
@@ -486,8 +486,8 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
 	error = rockchip_pd_power(pd, true);
 	if (error) {
 		dev_err(pmu->dev,
-			"failed to power on domain '%s': %d\n",
-			node->name, error);
+			"failed to power on domain '%pOFn': %d\n",
+			node, error);
 		goto err_unprepare_clocks;
 	}
 
@@ -575,24 +575,24 @@ static int rockchip_pm_add_subdomain(struct rockchip_pmu *pmu,
 		error = of_property_read_u32(parent, "reg", &idx);
 		if (error) {
 			dev_err(pmu->dev,
-				"%s: failed to retrieve domain id (reg): %d\n",
-				parent->name, error);
+				"%pOFn: failed to retrieve domain id (reg): %d\n",
+				parent, error);
 			goto err_out;
 		}
 		parent_domain = pmu->genpd_data.domains[idx];
 
 		error = rockchip_pm_add_one_domain(pmu, np);
 		if (error) {
-			dev_err(pmu->dev, "failed to handle node %s: %d\n",
-				np->name, error);
+			dev_err(pmu->dev, "failed to handle node %pOFn: %d\n",
+				np, error);
 			goto err_out;
 		}
 
 		error = of_property_read_u32(np, "reg", &idx);
 		if (error) {
 			dev_err(pmu->dev,
-				"%s: failed to retrieve domain id (reg): %d\n",
-				np->name, error);
+				"%pOFn: failed to retrieve domain id (reg): %d\n",
+				np, error);
 			goto err_out;
 		}
 		child_domain = pmu->genpd_data.domains[idx];
@@ -683,16 +683,16 @@ static int rockchip_pm_domain_probe(struct platform_device *pdev)
 	for_each_available_child_of_node(np, node) {
 		error = rockchip_pm_add_one_domain(pmu, node);
 		if (error) {
-			dev_err(dev, "failed to handle node %s: %d\n",
-				node->name, error);
+			dev_err(dev, "failed to handle node %pOFn: %d\n",
+				node, error);
 			of_node_put(node);
 			goto err_out;
 		}
 
 		error = rockchip_pm_add_subdomain(pmu, node);
 		if (error < 0) {
-			dev_err(dev, "failed to handle subdomain node %s: %d\n",
-				node->name, error);
+			dev_err(dev, "failed to handle subdomain node %pOFn: %d\n",
+				node, error);
 			of_node_put(node);
 			goto err_out;
 		}
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 2d6f3fcf3211..acbe63e925d5 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -796,7 +796,7 @@ static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
 
 	id = tegra_powergate_lookup(pmc, np->name);
 	if (id < 0) {
-		pr_err("powergate lookup failed for %s: %d\n", np->name, id);
+		pr_err("powergate lookup failed for %pOFn: %d\n", np, id);
 		goto free_mem;
 	}
 
@@ -816,13 +816,13 @@ static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
 
 	err = tegra_powergate_of_get_clks(pg, np);
 	if (err < 0) {
-		pr_err("failed to get clocks for %s: %d\n", np->name, err);
+		pr_err("failed to get clocks for %pOFn: %d\n", np, err);
 		goto set_available;
 	}
 
 	err = tegra_powergate_of_get_resets(pg, np, off);
 	if (err < 0) {
-		pr_err("failed to get resets for %s: %d\n", np->name, err);
+		pr_err("failed to get resets for %pOFn: %d\n", np, err);
 		goto remove_clks;
 	}
 
@@ -851,15 +851,15 @@ static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
 
 	err = pm_genpd_init(&pg->genpd, NULL, off);
 	if (err < 0) {
-		pr_err("failed to initialise PM domain %s: %d\n", np->name,
+		pr_err("failed to initialise PM domain %pOFn: %d\n", np,
 		       err);
 		goto remove_resets;
 	}
 
 	err = of_genpd_add_provider_simple(np, &pg->genpd);
 	if (err < 0) {
-		pr_err("failed to add PM domain provider for %s: %d\n",
-		       np->name, err);
+		pr_err("failed to add PM domain provider for %pOFn: %d\n",
+		       np, err);
 		goto remove_genpd;
 	}
 
diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index 224d7ddeeb76..bbd4e5bc8707 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -544,15 +544,15 @@ static void __iomem *pktdma_get_regs(struct knav_dma_device *dma,
 
 	ret = of_address_to_resource(node, index, &res);
 	if (ret) {
-		dev_err(dev, "Can't translate of node(%s) address for index(%d)\n",
-			node->name, index);
+		dev_err(dev, "Can't translate of node(%pOFn) address for index(%d)\n",
+			node, index);
 		return ERR_PTR(ret);
 	}
 
 	regs = devm_ioremap_resource(kdev->dev, &res);
 	if (IS_ERR(regs))
-		dev_err(dev, "Failed to map register base for index(%d) node(%s)\n",
-			index, node->name);
+		dev_err(dev, "Failed to map register base for index(%d) node(%pOFn)\n",
+			index, node);
 	if (_size)
 		*_size = resource_size(&res);
 
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 6755f2af5619..b5d5673c255c 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -1382,15 +1382,15 @@ static void __iomem *knav_queue_map_reg(struct knav_device *kdev,
 
 	ret = of_address_to_resource(node, index, &res);
 	if (ret) {
-		dev_err(kdev->dev, "Can't translate of node(%s) address for index(%d)\n",
-			node->name, index);
+		dev_err(kdev->dev, "Can't translate of node(%pOFn) address for index(%d)\n",
+			node, index);
 		return ERR_PTR(ret);
 	}
 
 	regs = devm_ioremap_resource(kdev->dev, &res);
 	if (IS_ERR(regs))
-		dev_err(kdev->dev, "Failed to map register base for index(%d) node(%s)\n",
-			index, node->name);
+		dev_err(kdev->dev, "Failed to map register base for index(%d) node(%pOFn)\n",
+			index, node);
 	return regs;
 }
 
-- 
2.17.1

Re: [PATCH] soc: Convert to using %pOFn instead of device_node.name

[Thierry Reding]

[-- Attachment #1: Type: text/plain, Size: 1187 bytes --]

On Mon, Aug 27, 2018 at 08:52:44PM -0500, Rob Herring wrote:
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.
> 
> Cc: Qiang Zhao <qiang.zhao@nxp.com>
> Cc: Li Yang <leoyang.li@nxp.com>
> Cc: Andy Gross <andy.gross@linaro.org>
> Cc: David Brown <david.brown@linaro.org>
> Cc: Heiko Stuebner <heiko@sntech.de>
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: Jonathan Hunter <jonathanh@nvidia.com>
> Cc: Santosh Shilimkar <ssantosh@kernel.org>
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-soc@vger.kernel.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>  drivers/soc/dove/pmu.c            |  8 +++---
>  drivers/soc/fsl/qe/qe_tdm.c       |  4 +--
>  drivers/soc/qcom/apr.c            |  2 +-
>  drivers/soc/rockchip/pm_domains.c | 44 +++++++++++++++----------------
>  drivers/soc/tegra/pmc.c           | 12 ++++-----
>  drivers/soc/ti/knav_dma.c         |  8 +++---
>  drivers/soc/ti/knav_qmss_queue.c  |  8 +++---
>  7 files changed, 43 insertions(+), 43 deletions(-)

Acked-by: Thierry Reding <treding@nvidia.com>

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

Re: [PATCH] soc: Convert to using %pOFn instead of device_node.name

[Li Yang]

On Mon, Aug 27, 2018 at 8:57 PM Rob Herring <robh@kernel.org> wrote:
>
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.

Please forgive my ignorance, but what is this format specifier do
exactly?   I cannot find anything listed in the printf specification
matching this.  Is this something newly introduced?

Leo

Re: [PATCH] soc: Convert to using %pOFn instead of device_node.name

[Tyrel Datwyler]

On 08/28/2018 11:48 AM, Li Yang wrote:
> On Mon, Aug 27, 2018 at 8:57 PM Rob Herring <robh@kernel.org> wrote:
>>
>> In preparation to remove the node name pointer from struct device_node,
>> convert printf users to use the %pOFn format specifier.
> 
> Please forgive my ignorance, but what is this format specifier do
> exactly?   I cannot find anything listed in the printf specification
> matching this.  Is this something newly introduced?
> 
> Leo
> 

>From Documentation/core-api/printk-formats.rst:

kobjects
--------

::

        %pOF[fnpPcCF]


For printing kobject based structs (device nodes). Default behaviour is
equivalent to %pOFf.

        - f - device node full_name
        - n - device node name
        - p - device node phandle
        - P - device node path spec (name + @unit)
        - F - device node flags
        - c - major compatible string
        - C - full compatible string


-Tyrel

Re: [PATCH] soc: Convert to using %pOFn instead of device_node.name

[Li Yang]

On Tue, Aug 28, 2018 at 5:16 PM Tyrel Datwyler
<tyreld@linux.vnet.ibm.com> wrote:
>
> On 08/28/2018 11:48 AM, Li Yang wrote:
> > On Mon, Aug 27, 2018 at 8:57 PM Rob Herring <robh@kernel.org> wrote:
> >>
> >> In preparation to remove the node name pointer from struct device_node,
> >> convert printf users to use the %pOFn format specifier.
> >
> > Please forgive my ignorance, but what is this format specifier do
> > exactly?   I cannot find anything listed in the printf specification
> > matching this.  Is this something newly introduced?
> >
> > Leo
> >
>
> From Documentation/core-api/printk-formats.rst:

I was trying to find it in the standard c format specifier.  :(
Thanks a lot for the pointer.

>
> kobjects
> --------
>
> ::
>
>         %pOF[fnpPcCF]
>
>
> For printing kobject based structs (device nodes). Default behaviour is
> equivalent to %pOFf.
>
>         - f - device node full_name
>         - n - device node name
>         - p - device node phandle
>         - P - device node path spec (name + @unit)
>         - F - device node flags
>         - c - major compatible string
>         - C - full compatible string
>
>
> -Tyrel
>

Re: [PATCH] soc: Convert to using %pOFn instead of device_node.name

[Tyrel Datwyler]

On 08/28/2018 03:29 PM, Li Yang wrote:
> On Tue, Aug 28, 2018 at 5:16 PM Tyrel Datwyler
> <tyreld@linux.vnet.ibm.com> wrote:
>>
>> On 08/28/2018 11:48 AM, Li Yang wrote:
>>> On Mon, Aug 27, 2018 at 8:57 PM Rob Herring <robh@kernel.org> wrote:
>>>>
>>>> In preparation to remove the node name pointer from struct device_node,
>>>> convert printf users to use the %pOFn format specifier.
>>>
>>> Please forgive my ignorance, but what is this format specifier do
>>> exactly?   I cannot find anything listed in the printf specification
>>> matching this.  Is this something newly introduced?
>>>
>>> Leo
>>>
>>
>> From Documentation/core-api/printk-formats.rst:
> 
> I was trying to find it in the standard c format specifier.  :(
> Thanks a lot for the pointer.
> 

No problem. Its worth a look through. The usual integer types are at the top, but that is followed by the pointer types which the kernel provides quite a few for a variety of things.

>>
>> kobjects
>> --------
>>
>> ::
>>
>>         %pOF[fnpPcCF]
>>
>>
>> For printing kobject based structs (device nodes). Default behaviour is
>> equivalent to %pOFf.
>>
>>         - f - device node full_name
>>         - n - device node name
>>         - p - device node phandle
>>         - P - device node path spec (name + @unit)
>>         - F - device node flags
>>         - c - major compatible string
>>         - C - full compatible string
>>
>>
>> -Tyrel
>>
> 

Re: [PATCH] soc: Convert to using %pOFn instead of device_node.name

[Heiko Stübner]

Am Dienstag, 28. August 2018, 03:52:44 CEST schrieb Rob Herring:
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.

>  drivers/soc/rockchip/pm_domains.c | 44 +++++++++++++++----------------

For the Rockchip-part
Acked-by: Heiko Stuebner <heiko@sntech.de>

RE: [PATCH] soc: Convert to using %pOFn instead of device_node.name

[Qiang Zhao]
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aGFvIDxxaWFuZy56aGFvQG54cC5jb20+DQo+IENjOiBMaSBZYW5nIDxsZW95YW5nLmxpQG54cC5j
b20+DQo+IENjOiBBbmR5IEdyb3NzIDxhbmR5Lmdyb3NzQGxpbmFyby5vcmc+DQo+IENjOiBEYXZp
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ZWlrb0BzbnRlY2guZGU+DQo+IENjOiBUaGllcnJ5IFJlZGluZyA8dGhpZXJyeS5yZWRpbmdAZ21h
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bmcuemhhb0BueHAuY29tPg0KDQo=

Re: [PATCH] soc: Convert to using %pOFn instead of device_node.name

[Andy Gross]

On Mon, Aug 27, 2018 at 08:52:44PM -0500, Rob Herring wrote:
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.
> 
> Cc: Qiang Zhao <qiang.zhao@nxp.com>
> Cc: Li Yang <leoyang.li@nxp.com>
> Cc: Andy Gross <andy.gross@linaro.org>
> Cc: David Brown <david.brown@linaro.org>
> Cc: Heiko Stuebner <heiko@sntech.de>
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: Jonathan Hunter <jonathanh@nvidia.com>
> Cc: Santosh Shilimkar <ssantosh@kernel.org>
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-soc@vger.kernel.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---

Acked-by: Andy Gross <andy.gross@linaro.org>

[PATCH] tty: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-serial@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/tty/ehv_bytechan.c                  | 12 ++++++------
 drivers/tty/serial/cpm_uart/cpm_uart_core.c |  8 ++++----
 drivers/tty/serial/pmac_zilog.c             |  4 ++--
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
index eea4049b5dcc..769e0a5d1dfc 100644
--- a/drivers/tty/ehv_bytechan.c
+++ b/drivers/tty/ehv_bytechan.c
@@ -128,8 +128,8 @@ static int find_console_handle(void)
 	 */
 	iprop = of_get_property(np, "hv-handle", NULL);
 	if (!iprop) {
-		pr_err("ehv-bc: no 'hv-handle' property in %s node\n",
-		       np->name);
+		pr_err("ehv-bc: no 'hv-handle' property in %pOFn node\n",
+		       np);
 		return 0;
 	}
 	stdout_bc = be32_to_cpu(*iprop);
@@ -661,8 +661,8 @@ static int ehv_bc_tty_probe(struct platform_device *pdev)
 
 	iprop = of_get_property(np, "hv-handle", NULL);
 	if (!iprop) {
-		dev_err(&pdev->dev, "no 'hv-handle' property in %s node\n",
-			np->name);
+		dev_err(&pdev->dev, "no 'hv-handle' property in %pOFn node\n",
+			np);
 		return -ENODEV;
 	}
 
@@ -682,8 +682,8 @@ static int ehv_bc_tty_probe(struct platform_device *pdev)
 	bc->rx_irq = irq_of_parse_and_map(np, 0);
 	bc->tx_irq = irq_of_parse_and_map(np, 1);
 	if ((bc->rx_irq == NO_IRQ) || (bc->tx_irq == NO_IRQ)) {
-		dev_err(&pdev->dev, "no 'interrupts' property in %s node\n",
-			np->name);
+		dev_err(&pdev->dev, "no 'interrupts' property in %pOFn node\n",
+			np);
 		ret = -ENODEV;
 		goto error;
 	}
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index 24a5f05e769b..ea7204d75022 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -1151,8 +1151,8 @@ static int cpm_uart_init_port(struct device_node *np,
 	if (!pinfo->clk) {
 		data = of_get_property(np, "fsl,cpm-brg", &len);
 		if (!data || len != 4) {
-			printk(KERN_ERR "CPM UART %s has no/invalid "
-			                "fsl,cpm-brg property.\n", np->name);
+			printk(KERN_ERR "CPM UART %pOFn has no/invalid "
+			                "fsl,cpm-brg property.\n", np);
 			return -EINVAL;
 		}
 		pinfo->brg = *data;
@@ -1160,8 +1160,8 @@ static int cpm_uart_init_port(struct device_node *np,
 
 	data = of_get_property(np, "fsl,cpm-command", &len);
 	if (!data || len != 4) {
-		printk(KERN_ERR "CPM UART %s has no/invalid "
-		                "fsl,cpm-command property.\n", np->name);
+		printk(KERN_ERR "CPM UART %pOFn has no/invalid "
+		                "fsl,cpm-command property.\n", np);
 		return -EINVAL;
 	}
 	pinfo->command = *data;
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index 3d21790d961e..a4ec22d1f214 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1566,9 +1566,9 @@ static int pmz_attach(struct macio_dev *mdev, const struct of_device_id *match)
 	 * to work around bugs in ancient Apple device-trees
 	 */
 	if (macio_request_resources(uap->dev, "pmac_zilog"))
-		printk(KERN_WARNING "%s: Failed to request resource"
+		printk(KERN_WARNING "%pOFn: Failed to request resource"
 		       ", port still active\n",
-		       uap->node->name);
+		       uap->node);
 	else
 		uap->flags |= PMACZILOG_FLAG_RSRC_REQUESTED;
 
-- 
2.17.1

Re: [PATCH] tty: Convert to using %pOFn instead of device_node.name

[Rob Herring]

On Mon, Aug 27, 2018 at 8:55 PM Rob Herring <robh@kernel.org> wrote:
>
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.
>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Jiri Slaby <jslaby@suse.com>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: linux-serial@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>  drivers/tty/ehv_bytechan.c                  | 12 ++++++------
>  drivers/tty/serial/cpm_uart/cpm_uart_core.c |  8 ++++----
>  drivers/tty/serial/pmac_zilog.c             |  4 ++--
>  3 files changed, 12 insertions(+), 12 deletions(-)

Hey Greg, Is this still in your queue? Maybe you've just been extra
busy lately. ;)

Rob
>
> diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
> index eea4049b5dcc..769e0a5d1dfc 100644
> --- a/drivers/tty/ehv_bytechan.c
> +++ b/drivers/tty/ehv_bytechan.c
> @@ -128,8 +128,8 @@ static int find_console_handle(void)
>          */
>         iprop = of_get_property(np, "hv-handle", NULL);
>         if (!iprop) {
> -               pr_err("ehv-bc: no 'hv-handle' property in %s node\n",
> -                      np->name);
> +               pr_err("ehv-bc: no 'hv-handle' property in %pOFn node\n",
> +                      np);
>                 return 0;
>         }
>         stdout_bc = be32_to_cpu(*iprop);
> @@ -661,8 +661,8 @@ static int ehv_bc_tty_probe(struct platform_device *pdev)
>
>         iprop = of_get_property(np, "hv-handle", NULL);
>         if (!iprop) {
> -               dev_err(&pdev->dev, "no 'hv-handle' property in %s node\n",
> -                       np->name);
> +               dev_err(&pdev->dev, "no 'hv-handle' property in %pOFn node\n",
> +                       np);
>                 return -ENODEV;
>         }
>
> @@ -682,8 +682,8 @@ static int ehv_bc_tty_probe(struct platform_device *pdev)
>         bc->rx_irq = irq_of_parse_and_map(np, 0);
>         bc->tx_irq = irq_of_parse_and_map(np, 1);
>         if ((bc->rx_irq == NO_IRQ) || (bc->tx_irq == NO_IRQ)) {
> -               dev_err(&pdev->dev, "no 'interrupts' property in %s node\n",
> -                       np->name);
> +               dev_err(&pdev->dev, "no 'interrupts' property in %pOFn node\n",
> +                       np);
>                 ret = -ENODEV;
>                 goto error;
>         }
> diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
> index 24a5f05e769b..ea7204d75022 100644
> --- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
> +++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
> @@ -1151,8 +1151,8 @@ static int cpm_uart_init_port(struct device_node *np,
>         if (!pinfo->clk) {
>                 data = of_get_property(np, "fsl,cpm-brg", &len);
>                 if (!data || len != 4) {
> -                       printk(KERN_ERR "CPM UART %s has no/invalid "
> -                                       "fsl,cpm-brg property.\n", np->name);
> +                       printk(KERN_ERR "CPM UART %pOFn has no/invalid "
> +                                       "fsl,cpm-brg property.\n", np);
>                         return -EINVAL;
>                 }
>                 pinfo->brg = *data;
> @@ -1160,8 +1160,8 @@ static int cpm_uart_init_port(struct device_node *np,
>
>         data = of_get_property(np, "fsl,cpm-command", &len);
>         if (!data || len != 4) {
> -               printk(KERN_ERR "CPM UART %s has no/invalid "
> -                               "fsl,cpm-command property.\n", np->name);
> +               printk(KERN_ERR "CPM UART %pOFn has no/invalid "
> +                               "fsl,cpm-command property.\n", np);
>                 return -EINVAL;
>         }
>         pinfo->command = *data;
> diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
> index 3d21790d961e..a4ec22d1f214 100644
> --- a/drivers/tty/serial/pmac_zilog.c
> +++ b/drivers/tty/serial/pmac_zilog.c
> @@ -1566,9 +1566,9 @@ static int pmz_attach(struct macio_dev *mdev, const struct of_device_id *match)
>          * to work around bugs in ancient Apple device-trees
>          */
>         if (macio_request_resources(uap->dev, "pmac_zilog"))
> -               printk(KERN_WARNING "%s: Failed to request resource"
> +               printk(KERN_WARNING "%pOFn: Failed to request resource"
>                        ", port still active\n",
> -                      uap->node->name);
> +                      uap->node);
>         else
>                 uap->flags |= PMACZILOG_FLAG_RSRC_REQUESTED;
>
> --
> 2.17.1
>

Re: [PATCH] tty: Convert to using %pOFn instead of device_node.name

[Rob Herring]

On Fri, Sep 28, 2018 at 5:09 PM Rob Herring <robh@kernel.org> wrote:
>
> On Mon, Aug 27, 2018 at 8:55 PM Rob Herring <robh@kernel.org> wrote:
> >
> > In preparation to remove the node name pointer from struct device_node,
> > convert printf users to use the %pOFn format specifier.
> >
> > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > Cc: Jiri Slaby <jslaby@suse.com>
> > Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> > Cc: Paul Mackerras <paulus@samba.org>
> > Cc: Michael Ellerman <mpe@ellerman.id.au>
> > Cc: linux-serial@vger.kernel.org
> > Cc: linuxppc-dev@lists.ozlabs.org
> > Signed-off-by: Rob Herring <robh@kernel.org>
> > ---
> >  drivers/tty/ehv_bytechan.c                  | 12 ++++++------
> >  drivers/tty/serial/cpm_uart/cpm_uart_core.c |  8 ++++----
> >  drivers/tty/serial/pmac_zilog.c             |  4 ++--
> >  3 files changed, 12 insertions(+), 12 deletions(-)
>
> Hey Greg, Is this still in your queue? Maybe you've just been extra
> busy lately. ;)

NM. I see it's applied now. Sorry for the noise.

Rob

[PATCH] sound: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: alsa-devel@alsa-project.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 sound/aoa/soundbus/i2sbus/core.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c
index 000b58522106..bf32e1c74748 100644
--- a/sound/aoa/soundbus/i2sbus/core.c
+++ b/sound/aoa/soundbus/i2sbus/core.c
@@ -157,18 +157,19 @@ static int i2sbus_add_dev(struct macio_dev *macio,
 	struct device_node *child = NULL, *sound = NULL;
 	struct resource *r;
 	int i, layout = 0, rlen, ok = force;
-	static const char *rnames[] = { "i2sbus: %s (control)",
-					"i2sbus: %s (tx)",
-					"i2sbus: %s (rx)" };
+	char node_name[6];
+	static const char *rnames[] = { "i2sbus: %pOFn (control)",
+					"i2sbus: %pOFn (tx)",
+					"i2sbus: %pOFn (rx)" };
 	static irq_handler_t ints[] = {
 		i2sbus_bus_intr,
 		i2sbus_tx_intr,
 		i2sbus_rx_intr
 	};
 
-	if (strlen(np->name) != 5)
+	if (snprintf(node_name, sizeof(node_name), "%pOFn", np) != 5)
 		return 0;
-	if (strncmp(np->name, "i2s-", 4))
+	if (strncmp(np, "i2s-", 4))
 		return 0;
 
 	dev = kzalloc(sizeof(struct i2sbus_dev), GFP_KERNEL);
@@ -228,13 +229,13 @@ static int i2sbus_add_dev(struct macio_dev *macio,
 	dev->sound.pcmid = -1;
 	dev->macio = macio;
 	dev->control = control;
-	dev->bus_number = np->name[4] - 'a';
+	dev->bus_number = node_name[4] - 'a';
 	INIT_LIST_HEAD(&dev->sound.codec_list);
 
 	for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) {
 		dev->interrupts[i] = -1;
 		snprintf(dev->rnames[i], sizeof(dev->rnames[i]),
-			 rnames[i], np->name);
+			 rnames[i], np);
 	}
 	for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) {
 		int irq = irq_of_parse_and_map(np, i);
-- 
2.17.1

Re: [PATCH] sound: Convert to using %pOFn instead of device_node.name

[Andy Shevchenko]

On Tue, Aug 28, 2018 at 4:56 AM Rob Herring <robh@kernel.org> wrote:
>
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.

> +       if (snprintf(node_name, sizeof(node_name), "%pOFn", np) != 5)
>                 return 0;

> +       if (strncmp(np, "i2s-", 4))
>                 return 0;

Shouldn't be node_name here?



-- 
With Best Regards,
Andy Shevchenko

[PATCH v2] sound: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: alsa-devel@alsa-project.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
v2:
- Fix error in strncmp

 sound/aoa/soundbus/i2sbus/core.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c
index 000b58522106..bd7c5029fc59 100644
--- a/sound/aoa/soundbus/i2sbus/core.c
+++ b/sound/aoa/soundbus/i2sbus/core.c
@@ -157,18 +157,19 @@ static int i2sbus_add_dev(struct macio_dev *macio,
 	struct device_node *child = NULL, *sound = NULL;
 	struct resource *r;
 	int i, layout = 0, rlen, ok = force;
-	static const char *rnames[] = { "i2sbus: %s (control)",
-					"i2sbus: %s (tx)",
-					"i2sbus: %s (rx)" };
+	char node_name[6];
+	static const char *rnames[] = { "i2sbus: %pOFn (control)",
+					"i2sbus: %pOFn (tx)",
+					"i2sbus: %pOFn (rx)" };
 	static irq_handler_t ints[] = {
 		i2sbus_bus_intr,
 		i2sbus_tx_intr,
 		i2sbus_rx_intr
 	};

-	if (strlen(np->name) != 5)
+	if (snprintf(node_name, sizeof(node_name), "%pOFn", np) != 5)
 		return 0;
-	if (strncmp(np->name, "i2s-", 4))
+	if (strncmp(node_name, "i2s-", 4))
 		return 0;

 	dev = kzalloc(sizeof(struct i2sbus_dev), GFP_KERNEL);
@@ -228,13 +229,13 @@ static int i2sbus_add_dev(struct macio_dev *macio,
 	dev->sound.pcmid = -1;
 	dev->macio = macio;
 	dev->control = control;
-	dev->bus_number = np->name[4] - 'a';
+	dev->bus_number = node_name[4] - 'a';
 	INIT_LIST_HEAD(&dev->sound.codec_list);

 	for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) {
 		dev->interrupts[i] = -1;
 		snprintf(dev->rnames[i], sizeof(dev->rnames[i]),
-			 rnames[i], np->name);
+			 rnames[i], np);
 	}
 	for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) {
 		int irq = irq_of_parse_and_map(np, i);
--
2.17.1

Re: [alsa-devel] [PATCH v2] sound: Convert to using %pOFn instead of device_node.name

[Takashi Iwai]

On Tue, 28 Aug 2018 17:44:31 +0200,
Rob Herring wrote:
> 
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.
> 
> Cc: Johannes Berg <johannes@sipsolutions.net>
> Cc: Jaroslav Kysela <perex@perex.cz>
> Cc: Takashi Iwai <tiwai@suse.com>
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: alsa-devel@alsa-project.org
> Signed-off-by: Rob Herring <robh@kernel.org>

Applied now, thanks.


Takashi

[PATCH] ASoC: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Timur Tabi <timur@kernel.org>
Cc: Nicolin Chen <nicoleotsuka@gmail.com>
Cc: Xiubo Li <Xiubo.Lee@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Carlo Caione <carlo@caione.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Olivier Moysan <olivier.moysan@st.com>
Cc: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: alsa-devel@alsa-project.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 sound/soc/fsl/fsl_esai.c      | 2 +-
 sound/soc/fsl/fsl_utils.c     | 4 ++--
 sound/soc/meson/axg-card.c    | 2 +-
 sound/soc/stm/stm32_sai.c     | 2 +-
 sound/soc/stm/stm32_sai_sub.c | 8 ++++----
 5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index c1d1d06783e5..57b484768a58 100644
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c
@@ -807,7 +807,7 @@ static int fsl_esai_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	esai_priv->pdev = pdev;
-	strncpy(esai_priv->name, np->name, sizeof(esai_priv->name) - 1);
+	snprintf(esai_priv->name, sizeof(esai_priv->name), "%pOFn", np);
 
 	/* Get the addresses and IRQ */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c
index 7f0fa4b52223..9981668ab590 100644
--- a/sound/soc/fsl/fsl_utils.c
+++ b/sound/soc/fsl/fsl_utils.c
@@ -57,8 +57,8 @@ int fsl_asoc_get_dma_channel(struct device_node *ssi_np,
 		of_node_put(dma_channel_np);
 		return ret;
 	}
-	snprintf((char *)dai->platform_name, DAI_NAME_SIZE, "%llx.%s",
-		 (unsigned long long) res.start, dma_channel_np->name);
+	snprintf((char *)dai->platform_name, DAI_NAME_SIZE, "%llx.%pOFn",
+		 (unsigned long long) res.start, dma_channel_np);
 
 	iprop = of_get_property(dma_channel_np, "cell-index", NULL);
 	if (!iprop) {
diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c
index 2914ba0d965b..b76a5f4f1785 100644
--- a/sound/soc/meson/axg-card.c
+++ b/sound/soc/meson/axg-card.c
@@ -478,7 +478,7 @@ static int axg_card_set_be_link(struct snd_soc_card *card,
 
 	ret = axg_card_set_link_name(card, link, "be");
 	if (ret)
-		dev_err(card->dev, "error setting %s link name\n", np->name);
+		dev_err(card->dev, "error setting %pOFn link name\n", np);
 
 	return ret;
 }
diff --git a/sound/soc/stm/stm32_sai.c b/sound/soc/stm/stm32_sai.c
index f22654253c43..d597eba61992 100644
--- a/sound/soc/stm/stm32_sai.c
+++ b/sound/soc/stm/stm32_sai.c
@@ -104,7 +104,7 @@ static int stm32_sai_set_sync(struct stm32_sai_data *sai_client,
 
 	if (!pdev) {
 		dev_err(&sai_client->pdev->dev,
-			"Device not found for node %s\n", np_provider->name);
+			"Device not found for node %pOFn\n", np_provider);
 		return -ENODEV;
 	}
 
diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index 06fba9650ac4..cad8c7888292 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -1124,16 +1124,16 @@ static int stm32_sai_sub_parse_of(struct platform_device *pdev,
 	sai->sync = SAI_SYNC_NONE;
 	if (args.np) {
 		if (args.np == np) {
-			dev_err(&pdev->dev, "%s sync own reference\n",
-				np->name);
+			dev_err(&pdev->dev, "%pOFn sync own reference\n",
+				np);
 			of_node_put(args.np);
 			return -EINVAL;
 		}
 
 		sai->np_sync_provider  = of_get_parent(args.np);
 		if (!sai->np_sync_provider) {
-			dev_err(&pdev->dev, "%s parent node not found\n",
-				np->name);
+			dev_err(&pdev->dev, "%pOFn parent node not found\n",
+				np);
 			of_node_put(args.np);
 			return -ENODEV;
 		}
-- 
2.17.1

Re: [PATCH] ASoC: Convert to using %pOFn instead of device_node.name

[Andy Shevchenko]

On Tue, Aug 28, 2018 at 4:57 AM Rob Herring <robh@kernel.org> wrote:

> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.

> +       snprintf((char *)dai->platform_name, DAI_NAME_SIZE, "%llx.%pOFn",
> +                (unsigned long long) res.start, dma_channel_np);

I understand that is not the part of the change, but wouldn't be good
to replace that ugly casting with proper specifier as well?
I mean
%pa ... &res.start

> +                       dev_err(&pdev->dev, "%pOFn sync own reference\n",
> +                               np);

One line?

-- 
With Best Regards,
Andy Shevchenko

[PATCH v2] ASoC: Convert to using %pOFn instead of device_node.name

[Rob Herring]

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Timur Tabi <timur@kernel.org>
Cc: Nicolin Chen <nicoleotsuka@gmail.com>
Cc: Xiubo Li <Xiubo.Lee@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Carlo Caione <carlo@caione.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Olivier Moysan <olivier.moysan@st.com>
Cc: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: alsa-devel@alsa-project.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
v2:
- stm32_sai_sub: Unwrap now shorter line

 sound/soc/fsl/fsl_esai.c      | 2 +-
 sound/soc/fsl/fsl_utils.c     | 4 ++--
 sound/soc/meson/axg-card.c    | 2 +-
 sound/soc/stm/stm32_sai.c     | 2 +-
 sound/soc/stm/stm32_sai_sub.c | 7 +++----
 5 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index c1d1d06783e5..57b484768a58 100644
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c
@@ -807,7 +807,7 @@ static int fsl_esai_probe(struct platform_device *pdev)
 		return -ENOMEM;

 	esai_priv->pdev = pdev;
-	strncpy(esai_priv->name, np->name, sizeof(esai_priv->name) - 1);
+	snprintf(esai_priv->name, sizeof(esai_priv->name), "%pOFn", np);

 	/* Get the addresses and IRQ */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c
index 7f0fa4b52223..9981668ab590 100644
--- a/sound/soc/fsl/fsl_utils.c
+++ b/sound/soc/fsl/fsl_utils.c
@@ -57,8 +57,8 @@ int fsl_asoc_get_dma_channel(struct device_node *ssi_np,
 		of_node_put(dma_channel_np);
 		return ret;
 	}
-	snprintf((char *)dai->platform_name, DAI_NAME_SIZE, "%llx.%s",
-		 (unsigned long long) res.start, dma_channel_np->name);
+	snprintf((char *)dai->platform_name, DAI_NAME_SIZE, "%llx.%pOFn",
+		 (unsigned long long) res.start, dma_channel_np);

 	iprop = of_get_property(dma_channel_np, "cell-index", NULL);
 	if (!iprop) {
diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c
index 2914ba0d965b..b76a5f4f1785 100644
--- a/sound/soc/meson/axg-card.c
+++ b/sound/soc/meson/axg-card.c
@@ -478,7 +478,7 @@ static int axg_card_set_be_link(struct snd_soc_card *card,

 	ret = axg_card_set_link_name(card, link, "be");
 	if (ret)
-		dev_err(card->dev, "error setting %s link name\n", np->name);
+		dev_err(card->dev, "error setting %pOFn link name\n", np);

 	return ret;
 }
diff --git a/sound/soc/stm/stm32_sai.c b/sound/soc/stm/stm32_sai.c
index f22654253c43..d597eba61992 100644
--- a/sound/soc/stm/stm32_sai.c
+++ b/sound/soc/stm/stm32_sai.c
@@ -104,7 +104,7 @@ static int stm32_sai_set_sync(struct stm32_sai_data *sai_client,

 	if (!pdev) {
 		dev_err(&sai_client->pdev->dev,
-			"Device not found for node %s\n", np_provider->name);
+			"Device not found for node %pOFn\n", np_provider);
 		return -ENODEV;
 	}

diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index 06fba9650ac4..56a227e0bd71 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -1124,16 +1124,15 @@ static int stm32_sai_sub_parse_of(struct platform_device *pdev,
 	sai->sync = SAI_SYNC_NONE;
 	if (args.np) {
 		if (args.np == np) {
-			dev_err(&pdev->dev, "%s sync own reference\n",
-				np->name);
+			dev_err(&pdev->dev, "%pOFn sync own reference\n", np);
 			of_node_put(args.np);
 			return -EINVAL;
 		}

 		sai->np_sync_provider  = of_get_parent(args.np);
 		if (!sai->np_sync_provider) {
-			dev_err(&pdev->dev, "%s parent node not found\n",
-				np->name);
+			dev_err(&pdev->dev, "%pOFn parent node not found\n",
+				np);
 			of_node_put(args.np);
 			return -ENODEV;
 		}
--
2.17.1

Re: [PATCH v2] ASoC: Convert to using %pOFn instead of device_node.name

[Mark Brown]

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On Tue, Aug 28, 2018 at 10:44:28AM -0500, Rob Herring wrote:
> In preparation to remove the node name pointer from struct device_node,
> convert printf users to use the %pOFn format specifier.

Please don't send new patches in reply to existing threads, it makes it
harder to follow what the current versions of things are.

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