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net: Document that dev_get_stats() returns the given pointer

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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>
This commit is contained in:
Ben Hutchings 2010-07-09 09:12:41 +00:00 committed by David S. Miller
parent 3cfde79c6c
commit d77535162e
2 changed files with 8 additions and 8 deletions
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4
include/linux/netdevice.h
View file

@ -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);

12
net/core/dev.c
View file

@ -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;