diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2009-12-23 13:15:39 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-12-28 16:54:59 -0500 |
| commit | 0c1ad2cac1cb54db38fd4cc1822965071ee83f6e (patch) | |
| tree | d5af632483584b7579ad8b24ba870f9b18e1aaa7 /net/mac80211/scan.c | |
| parent | 8e664fb3fd2b04e3ac5fad7f046000ba54e0e275 (diff) | |
| download | op-kernel-dev-0c1ad2cac1cb54db38fd4cc1822965071ee83f6e.zip op-kernel-dev-0c1ad2cac1cb54db38fd4cc1822965071ee83f6e.tar.gz | |
mac80211: proper bss private data handling
cfg80211 offers private data for each BSS struct,
which mac80211 uses. However, mac80211 uses internal
and external (cfg80211) BSS pointers interchangeably
and has a hack to put the cfg80211 bss struct into
the private struct.
Remove this hack, properly converting between the
pointers wherever necessary.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/scan.c')
| -rw-r--r-- | net/mac80211/scan.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index fb89e4c..2a2d7f6 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -29,16 +29,19 @@ struct ieee80211_bss * ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, u8 *ssid, u8 ssid_len) { - return (void *)cfg80211_get_bss(local->hw.wiphy, - ieee80211_get_channel(local->hw.wiphy, - freq), - bssid, ssid, ssid_len, - 0, 0); + struct cfg80211_bss *cbss; + + cbss = cfg80211_get_bss(local->hw.wiphy, + ieee80211_get_channel(local->hw.wiphy, freq), + bssid, ssid, ssid_len, 0, 0); + if (!cbss) + return NULL; + return (void *)cbss->priv; } static void ieee80211_rx_bss_free(struct cfg80211_bss *cbss) { - struct ieee80211_bss *bss = (void *)cbss; + struct ieee80211_bss *bss = (void *)cbss->priv; kfree(bss_mesh_id(bss)); kfree(bss_mesh_cfg(bss)); @@ -47,7 +50,9 @@ static void ieee80211_rx_bss_free(struct cfg80211_bss *cbss) void ieee80211_rx_bss_put(struct ieee80211_local *local, struct ieee80211_bss *bss) { - cfg80211_put_bss((struct cfg80211_bss *)bss); + if (!bss) + return; + cfg80211_put_bss(container_of((void *)bss, struct cfg80211_bss, priv)); } struct ieee80211_bss * @@ -59,6 +64,7 @@ ieee80211_bss_info_update(struct ieee80211_local *local, struct ieee80211_channel *channel, bool beacon) { + struct cfg80211_bss *cbss; struct ieee80211_bss *bss; int clen; s32 signal = 0; @@ -68,13 +74,14 @@ ieee80211_bss_info_update(struct ieee80211_local *local, else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) signal = (rx_status->signal * 100) / local->hw.max_signal; - bss = (void *)cfg80211_inform_bss_frame(local->hw.wiphy, channel, - mgmt, len, signal, GFP_ATOMIC); + cbss = cfg80211_inform_bss_frame(local->hw.wiphy, channel, + mgmt, len, signal, GFP_ATOMIC); - if (!bss) + if (!cbss) return NULL; - bss->cbss.free_priv = ieee80211_rx_bss_free; + cbss->free_priv = ieee80211_rx_bss_free; + bss = (void *)cbss->priv; /* save the ERP value so that it is available at association time */ if (elems->erp_info && elems->erp_info_len >= 1) { |
