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From foo@baz Mon Sep 9 14:35:13 PDT 2013
Date: Mon, 09 Sep 2013 14:35:13 -0700
To: Greg KH <gregkh@linuxfoundation.org>
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: hv: move "class_id" bus attribute to dev_groups
This moves the "class_id" bus attribute to the dev_groups structure,
removing the need for it to be in a temporary structure.
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hv/channel.c | 2 --
drivers/hv/vmbus_drv.c | 22 +++++++++++++++-------
include/linux/hyperv.h | 1 -
3 files changed, 15 insertions(+), 10 deletions(-)
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -69,8 +69,6 @@ void vmbus_get_debug_info(struct vmbus_c
u8 monitor_group = (u8)channel->offermsg.monitorid / 32;
u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
- memcpy(&debuginfo->interfacetype,
- &channel->offermsg.offer.if_type, sizeof(uuid_le));
memcpy(&debuginfo->interface_instance,
&channel->offermsg.offer.if_instance,
sizeof(uuid_le));
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,7 +47,6 @@ static struct completion probe_event;
static int irq;
struct hv_device_info {
- uuid_le chn_type;
uuid_le chn_instance;
u32 server_monitor_pending;
@@ -80,8 +79,6 @@ static void get_channel_info(struct hv_d
vmbus_get_debug_info(device->channel, &debug_info);
- memcpy(&info->chn_type, &debug_info.interfacetype,
- sizeof(uuid_le));
memcpy(&info->chn_instance, &debug_info.interface_instance,
sizeof(uuid_le));
@@ -139,9 +136,7 @@ static ssize_t vmbus_show_device_attr(st
get_channel_info(hv_dev, device_info);
- if (!strcmp(dev_attr->attr.name, "class_id")) {
- ret = sprintf(buf, "{%pUl}\n", device_info->chn_type.b);
- } else if (!strcmp(dev_attr->attr.name, "device_id")) {
+ if (!strcmp(dev_attr->attr.name, "device_id")) {
ret = sprintf(buf, "{%pUl}\n", device_info->chn_instance.b);
} else if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
ret = sprintf(buf, "%d\n", device_info->outbound.int_mask);
@@ -220,6 +215,18 @@ static ssize_t monitor_id_show(struct de
}
static DEVICE_ATTR_RO(monitor_id);
+static ssize_t class_id_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "{%pUl}\n",
+ hv_dev->channel->offermsg.offer.if_type.b);
+}
+static DEVICE_ATTR_RO(class_id);
+
static ssize_t modalias_show(struct device *dev,
struct device_attribute *dev_attr, char *buf)
{
@@ -231,10 +238,12 @@ static ssize_t modalias_show(struct devi
}
static DEVICE_ATTR_RO(modalias);
+
static struct attribute *vmbus_attrs[] = {
&dev_attr_id.attr,
&dev_attr_state.attr,
&dev_attr_monitor_id.attr,
+ &dev_attr_class_id.attr,
&dev_attr_modalias.attr,
NULL,
};
@@ -242,7 +251,6 @@ ATTRIBUTE_GROUPS(vmbus);
/* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
static struct device_attribute vmbus_device_attrs[] = {
- __ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR(server_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -900,7 +900,6 @@ enum vmbus_channel_state {
};
struct vmbus_channel_debug_info {
- uuid_le interfacetype;
uuid_le interface_instance;
u32 servermonitor_pending;
u32 servermonitor_latency;
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