Re: Enable module aliases for vio on sparc/sparc64
On 04/14/2016 01:04 AM, John Paul Adrian Glaubitz wrote:
> Testing a much simpler version now. Second.
Attaching two patches which add modalias_show and vio_hotplug. With
the patches applied, module autoloading works as expected.
Going to bed now, it's past midnight here.
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
>From 3515ad550f7b1db467664acc9bf0ed3d2aec9fdd Mon Sep 17 00:00:00 2001
From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Date: Thu, 14 Apr 2016 01:19:40 +0200
Subject: [PATCH 2/2] sparc/kernel/vio.c: implement vio_hotplug and add it to
vio_bus_type
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
---
arch/sparc/kernel/vio.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index 5a9bb9d..59f4b7c 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -45,6 +45,13 @@ static const struct vio_device_id *vio_match_device(
return NULL;
}
+static int vio_hotplug(struct device *dev, struct kobj_uevent_env *env)
+{
+ const struct vio_dev *vio_dev = to_vio_dev(dev);
+ add_uevent_var(env, "MODALIAS=vio:T%sS%s", vio_dev->type, vio_dev->compat);
+ return 0;
+}
+
static int vio_bus_match(struct device *dev, struct device_driver *drv)
{
struct vio_dev *vio_dev = to_vio_dev(dev);
@@ -121,6 +128,7 @@ static struct device_attribute vio_dev_attrs[] = {
static struct bus_type vio_bus_type = {
.name = "vio",
.dev_attrs = vio_dev_attrs,
+ .uevent = vio_hotplug,
.match = vio_bus_match,
.probe = vio_device_probe,
.remove = vio_device_remove,
--
2.8.0.rc3
>From 8d95bce6a35dc037d1e419896af19e12b3cda910 Mon Sep 17 00:00:00 2001
From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Date: Thu, 14 Apr 2016 01:16:14 +0200
Subject: [PATCH 1/2] sparc/kernel/vio.c: implement modalias_show()
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
---
arch/sparc/kernel/vio.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index cb5789c..5a9bb9d 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -105,6 +105,13 @@ static ssize_t type_show(struct device *dev,
return sprintf(buf, "%s\n", vdev->type);
}
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ const struct vio_dev *vdev = to_vio_dev(dev);
+ return sprintf(buf, "vio:T%sS%s\n", vdev->type, vdev->compat);
+}
+
static struct device_attribute vio_dev_attrs[] = {
__ATTR_RO(devspec),
__ATTR_RO(type),
--
2.8.0.rc3
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