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mac80211: add vif debugfs driver callbacks

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Add debugfs driver callbacks so drivers can add
debugfs entries for interfaces. Note that they
_must_ remove the entries again as add/remove in
the driver doesn't correspond to add/remove in
debugfs; the former is up/down while the latter
is netdev create/destroy.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Alexander Bondar
2012-12-22 10:43:33 +02:00
committed by Johannes Berg
parent 776b358017
commit b207cdb07f
3 changed files with 59 additions and 0 deletions
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18
include/net/mac80211.h
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@@ -2167,6 +2167,18 @@ enum ieee80211_rate_control_changed {
* MAC address of the device going away.
* Hence, this callback must be implemented. It can sleep.
*
* @add_interface_debugfs: Drivers can use this callback to add debugfs files
* when a vif is added to mac80211. This callback and
* @remove_interface_debugfs should be within a CONFIG_MAC80211_DEBUGFS
* conditional. @remove_interface_debugfs must be provided for cleanup.
* This callback can sleep.
*
* @remove_interface_debugfs: Remove the debugfs files which were added using
* @add_interface_debugfs. This callback must remove all debugfs entries
* that were added because mac80211 only removes interface debugfs when the
* interface is destroyed, not when it is removed from the driver.
* This callback can sleep.
*
* @config: Handler for configuration requests. IEEE 802.11 code calls this
* function to change hardware configuration, e.g., channel.
* This function should never fail but returns a negative error code
@@ -2580,6 +2592,12 @@ struct ieee80211_ops {
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct dentry *dir);
void (*add_interface_debugfs)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct dentry *dir);
void (*remove_interface_debugfs)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct dentry *dir);
#endif
void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
enum sta_notify_cmd, struct ieee80211_sta *sta);