[merged] kernel-reboot-add-devm_register_reboot_notifier.patch removed from -mm tree

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The patch titled
     Subject: kernel/reboot.c: add devm_register_reboot_notifier()
has been removed from the -mm tree.  Its filename was
     kernel-reboot-add-devm_register_reboot_notifier.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
Subject: kernel/reboot.c: add devm_register_reboot_notifier()

Add devm_* wrapper around register_reboot_notifier to simplify device
specific reboot notifier registration/unregistration.

[akpm@xxxxxxxxxxxxxxxxxxxx: move `struct device' forward decl to top-of-file]
Link: http://lkml.kernel.org/r/20170320171753.1705-1-andrew.smirnov@xxxxxxxxx
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 include/linux/reboot.h |    4 ++++
 kernel/reboot.c        |   27 +++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff -puN include/linux/reboot.h~kernel-reboot-add-devm_register_reboot_notifier include/linux/reboot.h
--- a/include/linux/reboot.h~kernel-reboot-add-devm_register_reboot_notifier
+++ a/include/linux/reboot.h
@@ -6,6 +6,8 @@
 #include <linux/notifier.h>
 #include <uapi/linux/reboot.h>
 
+struct device;
+
 #define SYS_DOWN	0x0001	/* Notify of system down */
 #define SYS_RESTART	SYS_DOWN
 #define SYS_HALT	0x0002	/* Notify of system halt */
@@ -39,6 +41,8 @@ extern int reboot_force;
 extern int register_reboot_notifier(struct notifier_block *);
 extern int unregister_reboot_notifier(struct notifier_block *);
 
+extern int devm_register_reboot_notifier(struct device *, struct notifier_block *);
+
 extern int register_restart_handler(struct notifier_block *);
 extern int unregister_restart_handler(struct notifier_block *);
 extern void do_kernel_restart(char *cmd);
diff -puN kernel/reboot.c~kernel-reboot-add-devm_register_reboot_notifier kernel/reboot.c
--- a/kernel/reboot.c~kernel-reboot-add-devm_register_reboot_notifier
+++ a/kernel/reboot.c
@@ -104,6 +104,33 @@ int unregister_reboot_notifier(struct no
 }
 EXPORT_SYMBOL(unregister_reboot_notifier);
 
+static void devm_unregister_reboot_notifier(struct device *dev, void *res)
+{
+	WARN_ON(unregister_reboot_notifier(*(struct notifier_block **)res));
+}
+
+int devm_register_reboot_notifier(struct device *dev, struct notifier_block *nb)
+{
+	struct notifier_block **rcnb;
+	int ret;
+
+	rcnb = devres_alloc(devm_unregister_reboot_notifier,
+			    sizeof(*rcnb), GFP_KERNEL);
+	if (!rcnb)
+		return -ENOMEM;
+
+	ret = register_reboot_notifier(nb);
+	if (!ret) {
+		*rcnb = nb;
+		devres_add(dev, rcnb);
+	} else {
+		devres_free(rcnb);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(devm_register_reboot_notifier);
+
 /*
  *	Notifier list for kernel code which wants to be called
  *	to restart the system.
_

Patches currently in -mm which might be from andrew.smirnov@xxxxxxxxx are


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