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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-13 22:32:49 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-26 20:01:15 +0400 |
| commit | 03f3a9107f5e848a42f25e3ab133db9f3b6546c7 (patch) | |
| tree | e42554ce998801ea3d10cbaf856be86fc2f86d21 /drivers/hv | |
| parent | 7d19143fe6bc928aab9968fd47fe39b4996a3297 (diff) | |
| download | linux-03f3a9107f5e848a42f25e3ab133db9f3b6546c7.tar.xz | |
hv: use dev_groups for device attributes
This patch is the first in a series that moves the hv bus code to use the
dev_groups field instead of dev_attrs, as dev_attrs is going away in future
kernel releases.
It moves the id sysfs file to the dev_groups structure, and creates the needed
show/store functions, instead of relying on one "universal" function for this.
By doing this, it removes the need for this to be in a temporary structure.
Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/channel.c | 1 | ||||
| -rw-r--r-- | drivers/hv/vmbus_drv.c | 23 |
2 files changed, 18 insertions, 6 deletions
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 6de6c98ce6eb..b58a1785d038 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -69,7 +69,6 @@ void vmbus_get_debug_info(struct vmbus_channel *channel, u8 monitor_group = (u8)channel->offermsg.monitorid / 32; u8 monitor_offset = (u8)channel->offermsg.monitorid % 32; - debuginfo->relid = channel->offermsg.child_relid; debuginfo->state = channel->state; memcpy(&debuginfo->interfacetype, &channel->offermsg.offer.if_type, sizeof(uuid_le)); diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index f9fe46f52cfa..5c21b22860af 100644 --- 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 { - u32 chn_id; u32 chn_state; uuid_le chn_type; uuid_le chn_instance; @@ -83,7 +82,6 @@ static void get_channel_info(struct hv_device *device, vmbus_get_debug_info(device->channel, &debug_info); - info->chn_id = debug_info.relid; info->chn_state = debug_info.state; memcpy(&info->chn_type, &debug_info.interfacetype, sizeof(uuid_le)); @@ -156,8 +154,6 @@ static ssize_t vmbus_show_device_attr(struct device *dev, ret = sprintf(buf, "vmbus:%s\n", alias_name); } else if (!strcmp(dev_attr->attr.name, "state")) { ret = sprintf(buf, "%d\n", device_info->chn_state); - } else if (!strcmp(dev_attr->attr.name, "id")) { - ret = sprintf(buf, "%d\n", device_info->chn_id); } else if (!strcmp(dev_attr->attr.name, "out_intr_mask")) { ret = sprintf(buf, "%d\n", device_info->outbound.int_mask); } else if (!strcmp(dev_attr->attr.name, "out_read_index")) { @@ -204,9 +200,25 @@ static ssize_t vmbus_show_device_attr(struct device *dev, return ret; } +static ssize_t 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, "%d\n", hv_dev->channel->offermsg.child_relid); +} +static DEVICE_ATTR_RO(id); + +static struct attribute *vmbus_attrs[] = { + &dev_attr_id.attr, + NULL, +}; +ATTRIBUTE_GROUPS(vmbus); + /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */ static struct device_attribute vmbus_device_attrs[] = { - __ATTR(id, S_IRUGO, vmbus_show_device_attr, NULL), __ATTR(state, S_IRUGO, vmbus_show_device_attr, NULL), __ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL), __ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL), @@ -384,6 +396,7 @@ static struct bus_type hv_bus = { .probe = vmbus_probe, .uevent = vmbus_uevent, .dev_attrs = vmbus_device_attrs, + .dev_groups = vmbus_groups, }; static const char *driver_name = "hyperv"; |