RE: [PATCH net-next] hyper-v: make uuid_le const
From: KY Srinivasan
Date: Tue Jun 03 2014 - 13:30:37 EST
> -----Original Message-----
> From: Stephen Hemminger [mailto:stephen@xxxxxxxxxxxxxxxxxx]
> Sent: Tuesday, June 3, 2014 8:38 AM
> To: KY Srinivasan; Haiyang Zhang
> Cc: devel@xxxxxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> netdev@xxxxxxxxxxxxxxx
> 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@xxxxxxxxxxxxxxxxxx>
Thanks Stephen.
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
>
> ---
> 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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