Merge tag 'nfs-for-3.8-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

[firefly-linux-kernel-4.4.55.git] / drivers / base / core.c

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 417913974df813f814208e697de28ffc63130756..a235085e343c47ca2b643f876c31ab70032359b5 100644 (file)
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -171,6 +171,27 @@ ssize_t device_show_int(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(device_show_int);
 
+ssize_t device_store_bool(struct device *dev, struct device_attribute *attr,
+                         const char *buf, size_t size)
+{
+       struct dev_ext_attribute *ea = to_ext_attr(attr);
+
+       if (strtobool(buf, ea->var) < 0)
+               return -EINVAL;
+
+       return size;
+}
+EXPORT_SYMBOL_GPL(device_store_bool);
+
+ssize_t device_show_bool(struct device *dev, struct device_attribute *attr,
+                        char *buf)
+{
+       struct dev_ext_attribute *ea = to_ext_attr(attr);
+
+       return snprintf(buf, PAGE_SIZE, "%d\n", *(bool *)(ea->var));
+}
+EXPORT_SYMBOL_GPL(device_show_bool);
+
 /**
  *     device_release - free device structure.
  *     @kobj:  device's kobject.