[PATCH 4/4] powerpc: Add uevent handler for ibmebus

[Sylvain Munaut <tnt@246tNt.com>]

Adding this handler allow userspace to properly handle the module
autoloading. The generation of the uevent itself is now common to
all bus using of_device, so not much code here.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
---
 arch/powerpc/kernel/ibmebus.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index 82bd2f1..5a42100 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -361,9 +361,27 @@ static int ibmebus_bus_match(struct devi
 	return 0;
 }
 
+static int ibmebus_bus_uevent(struct device *dev,
+		char **envp, int num_envp, char *buffer, int buffer_size)
+{
+	struct ibmebus_dev *ebus_dev;
+	struct of_device *of;
+
+	if (!dev)
+		return -ENODEV;
+
+	ebus_dev = to_ibmebus_dev(dev);
+	if (!ebus_dev)
+		return -ENODEV;
+
+	of = &ebus_dev->ofdev;
+	return of_device_uevent(of, envp, num_envp, buffer, buffer_size);
+}
+
 struct bus_type ibmebus_bus_type = {
 	.name = "ibmebus",
 	.match = ibmebus_bus_match,
+	.uevent = ibmebus_bus_uevent,
 };
 EXPORT_SYMBOL(ibmebus_bus_type);
 
-- 
1.4.2