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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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9
drivers/macintosh/windfarm.h
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@ -36,8 +36,8 @@ struct wf_control_ops {
struct wf_control { struct wf_control {
struct list_head link; struct list_head link;
struct wf_control_ops *ops; const struct wf_control_ops *ops;
char *name; const char *name;
int type; int type;
struct kref ref; struct kref ref;
struct device_attribute attr; struct device_attribute attr;
@ -86,10 +86,11 @@ struct wf_sensor_ops {
struct wf_sensor { struct wf_sensor {
struct list_head link; struct list_head link;
struct wf_sensor_ops *ops; const struct wf_sensor_ops *ops;
char *name; const char *name;
struct kref ref; struct kref ref;
struct device_attribute attr; struct device_attribute attr;
void *priv;
}; };
/* Same lifetime rules as controls */ /* Same lifetime rules as controls */