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[PATCH 06/15] powerpc/windfarm: const'ify and add "priv" field to controls & sensors

by Benjamin Herrenschmidt :: Rate this Message:

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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@...>
---
 drivers/macintosh/windfarm.h |   23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/macintosh/windfarm.h b/drivers/macintosh/windfarm.h
index 7a2482c..3ef192a 100644
--- a/drivers/macintosh/windfarm.h
+++ b/drivers/macintosh/windfarm.h
@@ -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 */
--
1.7.9.5

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