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PM / OPP: add documentation to RCU head in struct opp

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commit dde8437 (PM / OPP: RCU reclaim) introduced rcu_head for
struct opp. This aids freeing using kfree_rcu. However, we missed
adding documentation for the same. This generates kernel doc warning:
Warning(drivers/base/power/opp.c:70): No description found for
parameter 'head'

Add documentation as appropriate.

[rjw: Changelog]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Nishanth Menon 2013-03-26 18:01:49 +00:00 committed by Rafael J. Wysocki
parent c26b78a2d8
commit cd787b345e
1 changed files with 1 additions and 0 deletions
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drivers/base/power/opp.c
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@ -55,6 +55,7 @@
* @rate: Frequency in hertz
* @u_volt: Nominal voltage in microvolts corresponding to this OPP
* @dev_opp: points back to the device_opp struct this opp belongs to
* @head: RCU callback head used for deferred freeing
*
* This structure stores the OPP information for a given device.
*/