wireless: add comments about bss refcounting
Should help the next person that tries to understand
the bss refcounting logic.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index dd01b58..ae8c186 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -523,6 +523,7 @@
}
}
+/* Returned bss is reference counted and must be cleaned up appropriately. */
struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
struct ieee80211_channel *channel,
const u8 *bssid,
@@ -678,6 +679,7 @@
return true;
}
+/* Returned bss is reference counted and must be cleaned up appropriately. */
static struct cfg80211_internal_bss *
cfg80211_bss_update(struct cfg80211_registered_device *dev,
struct cfg80211_internal_bss *tmp)
@@ -866,6 +868,7 @@
return channel;
}
+/* Returned bss is reference counted and must be cleaned up appropriately. */
struct cfg80211_bss*
cfg80211_inform_bss(struct wiphy *wiphy,
struct ieee80211_channel *channel,
@@ -923,6 +926,7 @@
}
EXPORT_SYMBOL(cfg80211_inform_bss);
+/* Returned bss is reference counted and must be cleaned up appropriately. */
struct cfg80211_bss *
cfg80211_inform_bss_frame(struct wiphy *wiphy,
struct ieee80211_channel *channel,
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 32dac8c..1d3cfb1 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -239,6 +239,7 @@
rtnl_unlock();
}
+/* Returned bss is reference counted and must be cleaned up appropriately. */
static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
{
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -699,6 +700,7 @@
}
EXPORT_SYMBOL(cfg80211_connect_result);
+/* Consumes bss object one way or another */
void __cfg80211_roamed(struct wireless_dev *wdev,
struct cfg80211_bss *bss,
const u8 *req_ie, size_t req_ie_len,
@@ -775,6 +777,7 @@
}
EXPORT_SYMBOL(cfg80211_roamed);
+/* Consumes bss object one way or another */
void cfg80211_roamed_bss(struct net_device *dev,
struct cfg80211_bss *bss, const u8 *req_ie,
size_t req_ie_len, const u8 *resp_ie,