From 5d885b999c68283c493cf00cc020260d38951ae6 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 4 Dec 2012 00:14:17 +0100 Subject: [PATCH] regulatory: simplify freq_reg_info_regd The function itself has dual-purpose: it can retrieve from a given regdomain or from the globally installed one. Change it to have a single purpose only: to look up from a given regdomain. Pass the correct regdomain in the freq_reg_info() function instead. This also changes the locking rules for it, no locking is required any more. Acked-by: Luis R. Rodriguez Signed-off-by: Johannes Berg --- net/wireless/reg.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index b63bdf8..7523978 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -678,28 +678,15 @@ static int freq_reg_info_regd(struct wiphy *wiphy, u32 center_freq, u32 desired_bw_khz, const struct ieee80211_reg_rule **reg_rule, - const struct ieee80211_regdomain *custom_regd) + const struct ieee80211_regdomain *regd) { int i; bool band_rule_found = false; - const struct ieee80211_regdomain *regd; bool bw_fits = false; if (!desired_bw_khz) desired_bw_khz = MHZ_TO_KHZ(20); - regd = custom_regd ? custom_regd : cfg80211_regdomain; - - /* - * Follow the driver's regulatory domain, if present, unless a country - * IE has been processed or a user wants to help complaince further - */ - if (!custom_regd && - last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE && - last_request->initiator != NL80211_REGDOM_SET_BY_USER && - wiphy->regd) - regd = wiphy->regd; - if (!regd) return -EINVAL; @@ -735,10 +722,24 @@ static int freq_reg_info_regd(struct wiphy *wiphy, int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 desired_bw_khz, const struct ieee80211_reg_rule **reg_rule) { + const struct ieee80211_regdomain *regd; + + assert_reg_lock(); assert_cfg80211_lock(); + /* + * Follow the driver's regulatory domain, if present, unless a country + * IE has been processed or a user wants to help complaince further + */ + if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE && + last_request->initiator != NL80211_REGDOM_SET_BY_USER && + wiphy->regd) + regd = wiphy->regd; + else + regd = cfg80211_regdomain; + return freq_reg_info_regd(wiphy, center_freq, desired_bw_khz, - reg_rule, NULL); + reg_rule, regd); } EXPORT_SYMBOL(freq_reg_info); -- 2.7.4