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

1 files changed, 9 insertions, 8 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 5f4e03336e68..131d96c6090b 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2346,8 +2346,6 @@ static void fw_devlink_link_device(struct device *dev)
 
 /* Device links support end. */
 
-int (*platform_notify)(struct device *dev) = NULL;
-int (*platform_notify_remove)(struct device *dev) = NULL;
 static struct kobject *dev_kobj;
 
 /* /sys/dev/char */
@@ -2395,16 +2393,10 @@ static void device_platform_notify(struct device *dev)
 	acpi_device_notify(dev);
 
 	software_node_notify(dev);
-
-	if (platform_notify)
-		platform_notify(dev);
 }
 
 static void device_platform_notify_remove(struct device *dev)
 {
-	if (platform_notify_remove)
-		platform_notify_remove(dev);
-
 	software_node_notify_remove(dev);
 
 	acpi_device_notify_remove(dev);
@@ -2546,6 +2538,15 @@ ssize_t device_show_bool(struct device *dev, struct device_attribute *attr,
 }
 EXPORT_SYMBOL_GPL(device_show_bool);
 
+ssize_t device_show_string(struct device *dev,
+			   struct device_attribute *attr, char *buf)
+{
+	struct dev_ext_attribute *ea = to_ext_attr(attr);
+
+	return sysfs_emit(buf, "%s\n", (char *)ea->var);
+}
+EXPORT_SYMBOL_GPL(device_show_string);
+
 /**
  * device_release - free device structure.
  * @kobj: device's kobject.