As reported by Josh Boyer, brcmsmac is producing lockdep warnings by calling freq_reg_info() without holding cfg80211_lock. Currently freq_reg_info() is the only way for a wireless driver to tell whether OFDM is allowed on the current channel, but cfg80211_lock is outside the scope of the wireless drivers. Since other regulatory restrictions are communicated in the channel definition, it makes sense to do the same for OFDM. These patches add a new flag, IEEE80211_CHAN_NO_OFDM, which is set by regulatory to indicated OFDM operation is prohibited. brcmsmac is modifified to use this flag instead of consuming the regulatory data directly. Thanks, Seth Seth Forshee (2): cfg80211: add channel flag to restrict OFDM brcmsmac: use channel flags to restrict OFDM drivers/net/wireless/brcm80211/brcmsmac/channel.c | 5 +---- .../net/wireless/brcm80211/brcmsmac/mac80211_if.c | 3 ++- include/net/cfg80211.h | 2 ++ net/wireless/reg.c | 2 ++ 4 files changed, 7 insertions(+), 5 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
