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powerpc/windfarm: const'ify and add "priv" field to controls & sensors

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const'ify the sensor ops and name and add a void* for use by
the control and sensor drivers to point back to their private
data, avoiding the need to create a wrapper data structure
per sensor or control instance.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt 2012-04-18 22:16:47 +00:00
parent e326b30fda
commit e074d08e2b
1 changed files with 12 additions and 11 deletions
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23
drivers/macintosh/windfarm.h
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@ -35,12 +35,12 @@ struct wf_control_ops {
};
struct wf_control {
struct list_head link;
struct wf_control_ops *ops;
char *name;
int type;
struct kref ref;
struct device_attribute attr;
struct list_head link;
const struct wf_control_ops *ops;
const char *name;
int type;
struct kref ref;
struct device_attribute attr;
};
#define WF_CONTROL_TYPE_GENERIC 0
@ -85,11 +85,12 @@ struct wf_sensor_ops {
};
struct wf_sensor {
struct list_head link;
struct wf_sensor_ops *ops;
char *name;
struct kref ref;
struct device_attribute attr;
struct list_head link;
const struct wf_sensor_ops *ops;
const char *name;
struct kref ref;
struct device_attribute attr;
void *priv;
};
/* Same lifetime rules as controls */