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wireless: add comments about bss refcounting

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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>
This commit is contained in:
Ben Greear 2013-06-19 14:06:27 -07:00 committed by Johannes Berg
parent 6f390908e5
commit 0e3a39b562
2 changed files with 7 additions and 0 deletions
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4
net/wireless/scan.c
View File

@ -523,6 +523,7 @@ static int cmp_bss(struct cfg80211_bss *a,
}
}
/* 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 @@ static bool cfg80211_combine_bsses(struct cfg80211_registered_device *dev,
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 @@ cfg80211_get_bss_channel(struct wiphy *wiphy, const u8 *ie, size_t ielen,
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 @@ cfg80211_inform_bss(struct wiphy *wiphy,
}
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,

3
net/wireless/sme.c
View File

@ -239,6 +239,7 @@ void cfg80211_conn_work(struct work_struct *work)
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 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
}
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 @@ void cfg80211_roamed(struct net_device *dev,
}
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,