linux-kernel - [PATCH] PM / OPP: add documentation to rcu head in opp struct

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Date:	Tue, 26 Mar 2013 13:01:49 -0500
From:	Nishanth Menon <nm@...com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Nishanth Menon <nm@...com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	<linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] PM / OPP: add documentation to rcu head in opp struct

commit dde8437d06560366d8988c92b5774039ec703864
(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 for the same.

Cc: "Rafael J. Wysocki" <rjw@...k.pl>
Cc: Vincent Guittot <vincent.guittot@...aro.org>
Cc: linux-pm@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Nishanth Menon <nm@...com>
---
 drivers/base/power/opp.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index 32ee0fc..f0077cb 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -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.
  */
-- 
1.7.9.5

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