Merge tag 'driver-core-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the small set of driver core and kernfs changes for 6.10-rc1.

  Nothing major here at all, just a small set of changes for some driver
  core apis, and minor fixups. Included in here are:

   - sysfs_bin_attr_simple_read() helper added and used

   - device_show_string() helper added and used

  All usages of these were acked by the various maintainers. Also in
  here are:

   - kernfs minor cleanup

   - removed unused functions

   - typo fix in documentation

   - pay attention to sysfs_create_link() failures in module.c finally

  All of these have been in linux-next for a very long time with no
  reported problems"

* tag 'driver-core-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  device property: Fix a typo in the description of device_get_child_node_count()
  kernfs: mount: Remove unnecessary ‘NULL’ values from knparent
  scsi: Use device_show_string() helper for sysfs attributes
  platform/x86: Use device_show_string() helper for sysfs attributes
  perf: Use device_show_string() helper for sysfs attributes
  IB/qib: Use device_show_string() helper for sysfs attributes
  hwmon: Use device_show_string() helper for sysfs attributes
  driver core: Add device_show_string() helper for sysfs attributes
  treewide: Use sysfs_bin_attr_simple_read() helper
  sysfs: Add sysfs_bin_attr_simple_read() helper
  module: don't ignore sysfs_create_link() failures
  driver core: Remove unused platform_notify, platform_notify_remove

3 files changed, 20 insertions, 61 deletions

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 727dbdec45f4..3f9b6285c9a6 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -925,17 +925,12 @@ static ssize_t kbd_rgb_mode_store(struct device *dev,
 }
 static DEVICE_ATTR_WO(kbd_rgb_mode);
 
-static ssize_t kbd_rgb_mode_index_show(struct device *device,
-						 struct device_attribute *attr,
-						 char *buf)
-{
-	return sysfs_emit(buf, "%s\n", "cmd mode red green blue speed");
-}
-static DEVICE_ATTR_RO(kbd_rgb_mode_index);
+static DEVICE_STRING_ATTR_RO(kbd_rgb_mode_index, 0444,
+			     "cmd mode red green blue speed");
 
 static struct attribute *kbd_rgb_mode_attrs[] = {
 	&dev_attr_kbd_rgb_mode.attr,
-	&dev_attr_kbd_rgb_mode_index.attr,
+	&dev_attr_kbd_rgb_mode_index.attr.attr,
 	NULL,
 };
 
@@ -977,17 +972,12 @@ static ssize_t kbd_rgb_state_store(struct device *dev,
 }
 static DEVICE_ATTR_WO(kbd_rgb_state);
 
-static ssize_t kbd_rgb_state_index_show(struct device *device,
-						 struct device_attribute *attr,
-						 char *buf)
-{
-	return sysfs_emit(buf, "%s\n", "cmd boot awake sleep keyboard");
-}
-static DEVICE_ATTR_RO(kbd_rgb_state_index);
+static DEVICE_STRING_ATTR_RO(kbd_rgb_state_index, 0444,
+			     "cmd boot awake sleep keyboard");
 
 static struct attribute *kbd_rgb_state_attrs[] = {
 	&dev_attr_kbd_rgb_state.attr,
-	&dev_attr_kbd_rgb_state_index.attr,
+	&dev_attr_kbd_rgb_state_index.attr.attr,
 	NULL,
 };
 
@@ -2718,13 +2708,6 @@ static ssize_t pwm1_enable_store(struct device *dev,
 	return count;
 }
 
-static ssize_t fan1_label_show(struct device *dev,
-					  struct device_attribute *attr,
-					  char *buf)
-{
-	return sysfs_emit(buf, "%s\n", ASUS_FAN_DESC);
-}
-
 static ssize_t asus_hwmon_temp1(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
@@ -2759,13 +2742,6 @@ static ssize_t fan2_input_show(struct device *dev,
 	return sysfs_emit(buf, "%d\n", value * 100);
 }
 
-static ssize_t fan2_label_show(struct device *dev,
-					  struct device_attribute *attr,
-					  char *buf)
-{
-	return sysfs_emit(buf, "%s\n", ASUS_GPU_FAN_DESC);
-}
-
 /* Middle/Center fan on modern ROG laptops */
 static ssize_t fan3_input_show(struct device *dev,
 					struct device_attribute *attr,
@@ -2784,13 +2760,6 @@ static ssize_t fan3_input_show(struct device *dev,
 	return sysfs_emit(buf, "%d\n", value * 100);
 }
 
-static ssize_t fan3_label_show(struct device *dev,
-					  struct device_attribute *attr,
-					  char *buf)
-{
-	return sysfs_emit(buf, "%s\n", ASUS_MID_FAN_DESC);
-}
-
 static ssize_t pwm2_enable_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
@@ -2887,15 +2856,16 @@ static ssize_t pwm3_enable_store(struct device *dev,
 static DEVICE_ATTR_RW(pwm1);
 static DEVICE_ATTR_RW(pwm1_enable);
 static DEVICE_ATTR_RO(fan1_input);
-static DEVICE_ATTR_RO(fan1_label);
+static DEVICE_STRING_ATTR_RO(fan1_label, 0444, ASUS_FAN_DESC);
+
 /* Fan2 - GPU fan */
 static DEVICE_ATTR_RW(pwm2_enable);
 static DEVICE_ATTR_RO(fan2_input);
-static DEVICE_ATTR_RO(fan2_label);
+static DEVICE_STRING_ATTR_RO(fan2_label, 0444, ASUS_GPU_FAN_DESC);
 /* Fan3 - Middle/center fan */
 static DEVICE_ATTR_RW(pwm3_enable);
 static DEVICE_ATTR_RO(fan3_input);
-static DEVICE_ATTR_RO(fan3_label);
+static DEVICE_STRING_ATTR_RO(fan3_label, 0444, ASUS_MID_FAN_DESC);
 
 /* Temperature */
 static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
@@ -2906,11 +2876,11 @@ static struct attribute *hwmon_attributes[] = {
 	&dev_attr_pwm2_enable.attr,
 	&dev_attr_pwm3_enable.attr,
 	&dev_attr_fan1_input.attr,
-	&dev_attr_fan1_label.attr,
+	&dev_attr_fan1_label.attr.attr,
 	&dev_attr_fan2_input.attr,
-	&dev_attr_fan2_label.attr,
+	&dev_attr_fan2_label.attr.attr,
 	&dev_attr_fan3_input.attr,
-	&dev_attr_fan3_label.attr,
+	&dev_attr_fan3_label.attr.attr,
 
 	&dev_attr_temp1_input.attr,
 	NULL
@@ -2927,17 +2897,17 @@ static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
 		if (asus->fan_type != FAN_TYPE_AGFN)
 			return 0;
 	} else if (attr == &dev_attr_fan1_input.attr
-	    || attr == &dev_attr_fan1_label.attr
+	    || attr == &dev_attr_fan1_label.attr.attr
 	    || attr == &dev_attr_pwm1_enable.attr) {
 		if (asus->fan_type == FAN_TYPE_NONE)
 			return 0;
 	} else if (attr == &dev_attr_fan2_input.attr
-	    || attr == &dev_attr_fan2_label.attr
+	    || attr == &dev_attr_fan2_label.attr.attr
 	    || attr == &dev_attr_pwm2_enable.attr) {
 		if (asus->gpu_fan_type == FAN_TYPE_NONE)
 			return 0;
 	} else if (attr == &dev_attr_fan3_input.attr
-	    || attr == &dev_attr_fan3_label.attr
+	    || attr == &dev_attr_fan3_label.attr.attr
 	    || attr == &dev_attr_pwm3_enable.attr) {
 		if (asus->mid_fan_type == FAN_TYPE_NONE)
 			return 0;
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 1150a5c434a6..397b409064c9 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -10828,13 +10828,7 @@ static struct ibm_struct auxmac_data = {
 	.name = "auxmac",
 };
 
-static ssize_t auxmac_show(struct device *dev,
-			   struct device_attribute *attr,
-			   char *buf)
-{
-	return sysfs_emit(buf, "%s\n", auxmac);
-}
-static DEVICE_ATTR_RO(auxmac);
+static DEVICE_STRING_ATTR_RO(auxmac, 0444, auxmac);
 
 static umode_t auxmac_attr_is_visible(struct kobject *kobj,
 				      struct attribute *attr, int n)
@@ -10843,7 +10837,7 @@ static umode_t auxmac_attr_is_visible(struct kobject *kobj,
 }
 
 static struct attribute *auxmac_attributes[] = {
-	&dev_attr_auxmac.attr,
+	&dev_attr_auxmac.attr.attr,
 	NULL
 };
 
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index f86690aa3d46..3a8d8df89186 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -1821,12 +1821,7 @@ static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
 /*
  * Sysfs files
  */
-static ssize_t version_show(struct device *dev,
-			    struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
-}
-static DEVICE_ATTR_RO(version);
+static DEVICE_STRING_ATTR_RO(version, 0444, TOSHIBA_ACPI_VERSION);
 
 static ssize_t fan_store(struct device *dev,
 			 struct device_attribute *attr,
@@ -2435,7 +2430,7 @@ static ssize_t cooling_method_store(struct device *dev,
 static DEVICE_ATTR_RW(cooling_method);
 
 static struct attribute *toshiba_attributes[] = {
-	&dev_attr_version.attr,
+	&dev_attr_version.attr.attr,
 	&dev_attr_fan.attr,
 	&dev_attr_kbd_backlight_mode.attr,
 	&dev_attr_kbd_type.attr,