linux-kernel - [PATCH 26/28] Driver core: allow to delay the uevent at device creation time

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Message-Id: <11708947063663-git-send-email-greg@kroah.com>
Date:	Wed,  7 Feb 2007 16:30:14 -0800
From:	Greg KH <greg@...ah.com>
To:	linux-kernel@...r.kernel.org
Cc:	Kay Sievers <kay.sievers@...ell.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 26/28] Driver core: allow to delay the uevent at device creation time

From: Kay Sievers <kay.sievers@...ell.com>

For the block subsystem, we want to delay all uevents until the
disk has been scanned and allpartitons are already created before
the first event is sent out.

Signed-off-by: Kay Sievers <kay.sievers@...ell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/base/core.c    |    3 ++-
 include/linux/device.h |    3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 34ac187..e136142 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -589,7 +589,8 @@ int device_add(struct device *dev)
 		goto PMError;
 	if ((error = bus_add_device(dev)))
 		goto BusError;
-	kobject_uevent(&dev->kobj, KOBJ_ADD);
+	if (!dev->uevent_suppress)
+		kobject_uevent(&dev->kobj, KOBJ_ADD);
 	if ((error = bus_attach_device(dev)))
 		goto AttachError;
 	if (parent)
diff --git a/include/linux/device.h b/include/linux/device.h
index e1e164f..5ca1cdb 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -399,9 +399,10 @@ struct device {
 
 	/* class_device migration path */
 	struct list_head	node;
-	struct class		*class;		/* optional*/
+	struct class		*class;
 	dev_t			devt;		/* dev_t, creates the sysfs "dev" */
 	struct attribute_group	**groups;	/* optional groups */
+	int			uevent_suppress;
 
 	void	(*release)(struct device * dev);
 };
-- 
1.4.4.4

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