In preparation for introducing machinery to support autoloading vmbus drivers, introduce a function to map the dev_type guid to a human readable name.
Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: Hank Janssen <[email protected]> --- drivers/staging/hv/channel_mgmt.c | 36 ++++++++++++++++++++++++++++++++++++ drivers/staging/hv/hyperv.h | 2 +- 2 files changed, 37 insertions(+), 1 deletions(-) diff --git a/drivers/staging/hv/channel_mgmt.c b/drivers/staging/hv/channel_mgmt.c index bf011f3..022f32a 100644 --- a/drivers/staging/hv/channel_mgmt.c +++ b/drivers/staging/hv/channel_mgmt.c @@ -112,6 +112,42 @@ static const struct hv_guid }; +static const char *blk_dev_type = "hv_block"; +static const char *net_dev_type = "hv_net"; +static const char *scsi_dev_type = "hv_scsi"; +static const char *mouse_dev_type = "hv_mouse"; +static const char *util_dev_type = "hv_util"; + +/* + * Map the dev_type guid to a human readable string for setting + * up module aliases. The indices used in this function are based on + * the table defined earlier - supported_device_classes[] + */ +const char *hv_get_devtype_name(const struct hv_guid *type) +{ + int i; + + for (i = 0; i < MAX_NUM_DEVICE_CLASSES_SUPPORTED; i++) { + if (!memcmp(type, supported_device_classes[i].data, + sizeof(struct hv_guid))) { + switch (i) { + case 0: + return scsi_dev_type; + case 1: + return net_dev_type; + case 2: + return mouse_dev_type; + case 3: + return blk_dev_type; + } + } + } + /* + * Currently the util driver is used + * to handle all these devices. + */ + return util_dev_type; +} /** * prep_negotiate_resp() - Create default response for Hyper-V Negotiate message diff --git a/drivers/staging/hv/hyperv.h b/drivers/staging/hv/hyperv.h index 1747a24..21d9c73 100644 --- a/drivers/staging/hv/hyperv.h +++ b/drivers/staging/hv/hyperv.h @@ -944,5 +944,5 @@ extern void prep_negotiate_resp(struct icmsg_hdr *, struct icmsg_negotiate *, u8 *); extern void chn_cb_negotiate(void *); extern struct hyperv_service_callback hv_cb_utils[]; - +const char *hv_get_devtype_name(const struct hv_guid *type); #endif /* _HYPERV_H */ -- 1.7.4.1 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
