From: K. Y. Srinivasan <kys@microsoft.com>
Date: Sat, 27 Aug 2011 18:31:18 +0000 (-0700)
Subject: Staging: hv: storvsc: Handle IDE devices using the storvsc driver
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=21e37742361fe408d534c004b6e39717cb6b5999;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

Staging: hv: storvsc: Handle IDE devices using the storvsc driver

Now, enable handling of all IDE devices by extending the storvsc
device id table to handle IDE guid. As part of this cleanup Kconfig
and Hyper-V Makefile to not build the IDE driver (blkvsc).

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/staging/hv/Kconfig b/drivers/staging/hv/Kconfig
index 5e0c9f6c7457..26b5064bf63a 100644
--- a/drivers/staging/hv/Kconfig
+++ b/drivers/staging/hv/Kconfig
@@ -15,13 +15,6 @@ config HYPERV_STORAGE
 	help
 	 Select this option to enable the Hyper-V virtual storage driver.
 
-config HYPERV_BLOCK
-	tristate "Microsoft Hyper-V virtual block driver"
-	depends on BLOCK && SCSI && (LBDAF || 64BIT)
-	default HYPERV
-	help
-	  Select this option to enable the Hyper-V virtual block driver.
-
 config HYPERV_NET
 	tristate "Microsoft Hyper-V virtual network driver"
 	depends on NET
diff --git a/drivers/staging/hv/Makefile b/drivers/staging/hv/Makefile
index 30046743a0b4..bb89437d0e77 100644
--- a/drivers/staging/hv/Makefile
+++ b/drivers/staging/hv/Makefile
@@ -1,6 +1,5 @@
 obj-$(CONFIG_HYPERV)		+= hv_vmbus.o hv_timesource.o
 obj-$(CONFIG_HYPERV_STORAGE)	+= hv_storvsc.o
-obj-$(CONFIG_HYPERV_BLOCK)	+= hv_blkvsc.o
 obj-$(CONFIG_HYPERV_NET)	+= hv_netvsc.o
 obj-$(CONFIG_HYPERV_UTILS)	+= hv_utils.o
 obj-$(CONFIG_HYPERV_MOUSE)	+= hv_mouse.o
@@ -9,6 +8,5 @@ hv_vmbus-y := vmbus_drv.o \
 		 hv.o connection.o channel.o \
 		 channel_mgmt.o ring_buffer.o
 hv_storvsc-y := storvsc_drv.o storvsc.o
-hv_blkvsc-y := blkvsc_drv.o  storvsc.o
 hv_netvsc-y := netvsc_drv.o netvsc.o rndis_filter.o
 hv_utils-y := hv_util.o hv_kvp.o
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index f43420056f8c..9464f99bf7a1 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -645,27 +645,22 @@ 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.
+ */
 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) },
+	/* IDE guid */
+	{ VMBUS_DEVICE(0x32, 0x26, 0x41, 0x32, 0xcb, 0x86, 0xa2, 0x44,
+		       0x9b, 0x5c, 0x50, 0xd1, 0x41, 0x73, 0x54, 0xf5) },
 	{ },
 };
 
 MODULE_DEVICE_TABLE(vmbus, id_table);
 
-/*
- * This declaration is temporary; once we get the
- * infrastructure in place, we will integrate with
- * id_table.
- */
-
-static const uuid_le ide_blk_guid = {
-	.b = {
-		0x32, 0x26, 0x41, 0x32, 0xcb, 0x86, 0xa2, 0x44,
-		0x9b, 0x5c, 0x50, 0xd1, 0x41, 0x73, 0x54, 0xf5
-	}
-};
 
 /*
  * storvsc_probe - Add a new device for this driver
@@ -681,7 +676,7 @@ static int storvsc_probe(struct hv_device *device)
 	int path = 0;
 	int target = 0;
 
-	if (!uuid_le_cmp(device->dev_type, ide_blk_guid))
+	if (!memcmp(&device->dev_type.b, id_table[1].guid, sizeof(uuid_le)))
 		dev_is_ide = true;
 	else
 		dev_is_ide = false;