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Subject[PATCH net-next] hyper-v: make uuid_le const
The uuid structure could be managed as a const in several places.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

---
Patch against net-next because that is where most recent
hyper-v related changes are.


--- a/drivers/hv/channel_mgmt.c 2014-02-12 08:21:54.627887619 -0800
+++ b/drivers/hv/channel_mgmt.c 2014-06-03 08:08:47.030901345 -0700
@@ -365,7 +365,7 @@ static u32 next_vp;
* performance critical channels (IDE, SCSI and Network) will be uniformly
* distributed across all available CPUs.
*/
-static u32 get_vp_index(uuid_le *type_guid)
+static u32 get_vp_index(const uuid_le *type_guid)
{
u32 cur_cpu;
int i;
--- a/drivers/hv/vmbus_drv.c 2014-04-07 11:21:05.704486433 -0700
+++ b/drivers/hv/vmbus_drv.c 2014-06-03 08:11:14.771854064 -0700
@@ -435,7 +435,7 @@ static int vmbus_uevent(struct device *d
return ret;
}

-static uuid_le null_guid;
+static const uuid_le null_guid;

static inline bool is_null_guid(const __u8 *guid)
{
@@ -450,7 +450,7 @@ static inline bool is_null_guid(const __
*/
static const struct hv_vmbus_device_id *hv_vmbus_get_id(
const struct hv_vmbus_device_id *id,
- __u8 *guid)
+ const __u8 *guid)
{
for (; !is_null_guid(id->guid); id++)
if (!memcmp(&id->guid, guid, sizeof(uuid_le)))
@@ -779,9 +779,9 @@ EXPORT_SYMBOL_GPL(vmbus_driver_unregiste
* vmbus_device_create - Creates and registers a new child device
* on the vmbus.
*/
-struct hv_device *vmbus_device_create(uuid_le *type,
- uuid_le *instance,
- struct vmbus_channel *channel)
+struct hv_device *vmbus_device_create(const uuid_le *type,
+ const uuid_le *instance,
+ struct vmbus_channel *channel)
{
struct hv_device *child_device_obj;

--- a/drivers/hv/hyperv_vmbus.h 2014-04-07 11:21:05.704486433 -0700
+++ b/drivers/hv/hyperv_vmbus.h 2014-06-03 08:27:12.618223800 -0700
@@ -644,9 +644,9 @@ extern struct vmbus_connection vmbus_con

/* General vmbus interface */

-struct hv_device *vmbus_device_create(uuid_le *type,
- uuid_le *instance,
- struct vmbus_channel *channel);
+struct hv_device *vmbus_device_create(const uuid_le *type,
+ const uuid_le *instance,
+ struct vmbus_channel *channel);

int vmbus_device_register(struct hv_device *child_device_obj);
void vmbus_device_unregister(struct hv_device *device_obj);

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