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Subject[PATCH 03/20] Staging: hv: storvsc: Use the driver_data to identify ide
Date
Use the driver_data to identify ide devices in storvsc_probe().

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
---
drivers/staging/hv/storvsc_drv.c | 22 ++++++++++------------
1 files changed, 10 insertions(+), 12 deletions(-)
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index fff1e5b..b996293 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -1359,17 +1359,20 @@ static struct scsi_host_template scsi_driver = {
.dma_boundary = PAGE_SIZE-1,
};

-/*
- * The storvsc_probe function assumes that the IDE guid
- * is the second entry.
- */
+enum {
+ SCSI_GUID,
+ IDE_GUID,
+};
+
static const struct hv_vmbus_device_id id_table[] = {
/* SCSI guid */
{ VMBUS_DEVICE(0xd9, 0x63, 0x61, 0xba, 0xa1, 0x04, 0x29, 0x4d,
- 0xb6, 0x05, 0x72, 0xe2, 0xff, 0xb1, 0xdc, 0x7f) },
+ 0xb6, 0x05, 0x72, 0xe2, 0xff, 0xb1, 0xdc, 0x7f)
+ .driver_data = SCSI_GUID },
/* IDE guid */
{ VMBUS_DEVICE(0x32, 0x26, 0x41, 0x32, 0xcb, 0x86, 0xa2, 0x44,
- 0x9b, 0x5c, 0x50, 0xd1, 0x41, 0x73, 0x54, 0xf5) },
+ 0x9b, 0x5c, 0x50, 0xd1, 0x41, 0x73, 0x54, 0xf5)
+ .driver_data = IDE_GUID },
{ },
};

@@ -1387,15 +1390,10 @@ static int storvsc_probe(struct hv_device *device,
struct Scsi_Host *host;
struct hv_host_device *host_dev;
struct storvsc_device_info device_info;
- bool dev_is_ide;
+ bool dev_is_ide = ((dev_id->driver_data == IDE_GUID) ? true : false);
int path = 0;
int target = 0;

- if (!memcmp(&device->dev_type.b, id_table[1].guid, sizeof(uuid_le)))
- dev_is_ide = true;
- else
- dev_is_ide = false;
-
host = scsi_host_alloc(&scsi_driver,
sizeof(struct hv_host_device));
if (!host)
--
1.7.4.1


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