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Staging: hv: Introduce a function to map a generic driver pointer to a pointer to storvsc_driver_object

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In preparation for getting rid of the priv element from struct hv_driver,
introduce a function that maps a generic struct driver pointer to struct
storvsc_driver_object.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
K. Y. Srinivasan 2011-04-26 09:20:18 -07:00 committed by Greg Kroah-Hartman
parent a12c27c5ea
commit 0724e5fd77
1 changed files with 8 additions and 0 deletions
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8
drivers/staging/hv/storvsc_api.h
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@ -28,6 +28,7 @@
#include <linux/kernel.h>
#include "vstorage.h"
#include "vmbus_api.h"
#include "vmbus.h"
/* Defines */
#define STORVSC_RING_BUFFER_SIZE (20*PAGE_SIZE)
@ -153,6 +154,13 @@ static inline struct storvsc_driver_object *hvdr_to_stordr(struct hv_driver *d)
return container_of(d, struct storvsc_driver_object, base);
}
static inline
struct storvsc_driver_object *drv_to_stordrv(struct device_driver *d)
{
struct hv_driver *hvdrv = drv_to_hv_drv(d);
return hvdr_to_stordr(hvdrv);
}
/* Interface */
int stor_vsc_on_device_add(struct hv_device *device,