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authorBen Hutchings <bhutchings@solarflare.com>2010-07-09 09:12:41 +0000
committerDavid S. Miller <davem@davemloft.net>2010-07-09 17:41:57 -0700
commitd77535162e736c47978d5c01469c56e1781dc91b (patch)
tree7210d55197b283c72bb8c74a0aeb8cd386b21a74
parentnet: Get rid of rtnl_link_stats64 / net_device_stats union (diff)
downloadlinux-dev-d77535162e736c47978d5c01469c56e1781dc91b.tar.xz
linux-dev-d77535162e736c47978d5c01469c56e1781dc91b.zip
net: Document that dev_get_stats() returns the given pointer
Document that dev_get_stats() returns the same stats pointer it was given. Remove const qualification from the returned pointer since the caller may do what it likes with that structure. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/linux/netdevice.h4
-rw-r--r--net/core/dev.c12
2 files changed, 8 insertions, 8 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 17e95e37aed9..c4fedf000541 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2130,8 +2130,8 @@ extern void netdev_features_change(struct net_device *dev);
/* Load a device via the kmod */
extern void dev_load(struct net *net, const char *name);
extern void dev_mcast_init(void);
-extern const struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
- struct rtnl_link_stats64 *storage);
+extern struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
+ struct rtnl_link_stats64 *storage);
extern void dev_txq_stats_fold(const struct net_device *dev,
struct rtnl_link_stats64 *stats);
diff --git a/net/core/dev.c b/net/core/dev.c
index 79ee26ef5095..e2b9fa2c917e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5323,13 +5323,13 @@ static void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64,
* @dev: device to get statistics from
* @storage: place to store stats
*
- * Get network statistics from device. The device driver may provide
- * its own method by setting dev->netdev_ops->get_stats64 or
- * dev->netdev_ops->get_stats; otherwise the internal statistics
- * structure is used.
+ * Get network statistics from device. Return @storage.
+ * The device driver may provide its own method by setting
+ * dev->netdev_ops->get_stats64 or dev->netdev_ops->get_stats;
+ * otherwise the internal statistics structure is used.
*/
-const struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
- struct rtnl_link_stats64 *storage)
+struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
+ struct rtnl_link_stats64 *storage)
{
const struct net_device_ops *ops = dev->netdev_ops;