Commit d491af19 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

cfg80211: allow users to request removing a BSS

This patch introduces cfg80211_unlink_bss, a function to
allow a driver to remove a BSS from the internal list and
make it not show up in scan results any more -- this is
to be used when the driver detects that the BSS is no
longer available.
Signed-off-by: default avatarJohannes Berg <>
Signed-off-by: default avatarJohn W. Linville <>
parent 78c1c7e1
......@@ -791,5 +791,16 @@ struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
const u8 *meshid, size_t meshidlen,
const u8 *meshcfg);
void cfg80211_put_bss(struct cfg80211_bss *bss);
* cfg80211_unlink_bss - unlink BSS from internal data structures
* @wiphy: the wiphy
* @bss: the bss to remove
* This function removes the given BSS from the internal data structures
* thereby making it no longer show up in scan results etc. Use this
* function when you detect a BSS is gone. Normally BSSes will also time
* out, so it is not necessary to use this function at all.
void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
#endif /* __NET_CFG80211_H */
......@@ -432,6 +432,27 @@ void cfg80211_put_bss(struct cfg80211_bss *pub)
void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
struct cfg80211_registered_device *dev = wiphy_to_dev(wiphy);
struct cfg80211_internal_bss *bss;
if (WARN_ON(!pub))
bss = container_of(pub, struct cfg80211_internal_bss, pub);
rb_erase(&bss->rbn, &dev->bss_tree);
kref_put(&bss->ref, bss_release);
int cfg80211_wext_siwscan(struct net_device *dev,
struct iw_request_info *info,
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