linux-kernel - [Patch -mm 1/3] Driver core: suppress uevents via filter.

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Message-ID: <20070329111211.7f918aeb@gondolin.boeblingen.de.ibm.com>
Date:	Thu, 29 Mar 2007 11:12:11 +0200
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Greg K-H <greg@...ah.com>, Kay Sievers <kay.sievers@...y.org>,
	Eric Rannaud <eric.rannaud@...il.com>
Subject: [Patch -mm 1/3] Driver core: suppress uevents via filter.

From: Cornelia Huck <cornelia.huck@...ibm.com>

Suppress uevents for devices if uevent_suppress is set via
dev_uevent_filter(). This makes the driver core suppress all device
uevents, not just the add event in device_add().

Signed-off-by: Cornelia Huck <cornelia.huck@...ibm.com>

---
 drivers/base/core.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

--- linux-2.6.21-rc5-mm1.orig/drivers/base/core.c
+++ linux-2.6.21-rc5-mm1/drivers/base/core.c
@@ -134,6 +134,8 @@ static int dev_uevent_filter(struct kset
 
 	if (ktype == &ktype_device) {
 		struct device *dev = to_dev(kobj);
+		if (dev->uevent_suppress)
+			return 0;
 		if (dev->bus)
 			return 1;
 		if (dev->class)
@@ -689,8 +691,7 @@ int device_add(struct device *dev)
 		goto PMError;
 	if ((error = bus_add_device(dev)))
 		goto BusError;
-	if (!dev->uevent_suppress)
-		kobject_uevent(&dev->kobj, KOBJ_ADD);
+	kobject_uevent(&dev->kobj, KOBJ_ADD);
 	bus_attach_device(dev);
 	if (parent)
 		klist_add_tail(&dev->knode_parent, &parent->klist_children);
-
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