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Subject[PATCH 14/20] Staging: hv: mousevsc: Get rid of the usage of the ext field in struct hv_device
Date
Get rid of the usage of the ext field in struct hv_device for the mouse driver.
We do this by using the newly introduced functions to set and and get driver
specific data.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
---
drivers/staging/hv/hv_mouse.c | 18 +++++++++---------
1 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/staging/hv/hv_mouse.c b/drivers/staging/hv/hv_mouse.c
index 5ff8a03..fcb023a 100644
--- a/drivers/staging/hv/hv_mouse.c
+++ b/drivers/staging/hv/hv_mouse.c
@@ -196,7 +196,7 @@ static struct mousevsc_dev *alloc_input_device(struct hv_device *device)
atomic_cmpxchg(&input_dev->ref_count, 0, 2);

input_dev->device = device;
- device->ext = input_dev;
+ hv_set_drvdata(device, input_dev);

return input_dev;
}
@@ -214,7 +214,7 @@ static struct mousevsc_dev *get_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;

- input_dev = (struct mousevsc_dev *)device->ext;
+ input_dev = hv_get_drvdata(device);

/*
* FIXME
@@ -240,7 +240,7 @@ static struct mousevsc_dev *must_get_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;

- input_dev = (struct mousevsc_dev *)device->ext;
+ input_dev = hv_get_drvdata(device);

if (input_dev && atomic_read(&input_dev->ref_count))
atomic_inc(&input_dev->ref_count);
@@ -254,7 +254,7 @@ static void put_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;

- input_dev = (struct mousevsc_dev *)device->ext;
+ input_dev = hv_get_drvdata(device);

atomic_dec(&input_dev->ref_count);
}
@@ -266,7 +266,7 @@ static struct mousevsc_dev *release_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;

- input_dev = (struct mousevsc_dev *)device->ext;
+ input_dev = hv_get_drvdata(device);

/* Busy wait until the ref drop to 2, then set it to 1 */
while (atomic_cmpxchg(&input_dev->ref_count, 2, 1) != 2)
@@ -282,13 +282,13 @@ static struct mousevsc_dev *final_release_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;

- input_dev = (struct mousevsc_dev *)device->ext;
+ input_dev = hv_get_drvdata(device);

/* Busy wait until the ref drop to 1, then set it to 0 */
while (atomic_cmpxchg(&input_dev->ref_count, 1, 0) != 1)
udelay(100);

- device->ext = NULL;
+ hv_set_drvdata(device, NULL);
return input_dev;
}

@@ -790,7 +790,7 @@ static int mousevsc_on_device_remove(struct hv_device *device)
int ret = 0;

pr_info("disabling input device (%p)...",
- device->ext);
+ hv_get_drvdata(device));

input_dev = release_input_device(device);

@@ -808,7 +808,7 @@ static int mousevsc_on_device_remove(struct hv_device *device)
udelay(100);
}

- pr_info("removing input device (%p)...", device->ext);
+ pr_info("removing input device (%p)...", hv_get_drvdata(device));

input_dev = final_release_input_device(device);

--
1.7.4.1


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