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author | Michal Sojka <sojkam1@fel.cvut.cz> | 2015-11-23 19:27:16 +0100 |
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committer | Johannes Berg <johannes.berg@intel.com> | 2015-12-04 14:43:32 +0100 |
commit | 1aeb135f84fe40cf6ba1e3610ad2ca4cb9628089 (patch) | |
tree | 9da0d40fb512723099e1beb924695078b31e3657 /net/wireless/reg.c | |
parent | aaa016ccd5df89d73483d0d51ee1f692978ccc35 (diff) | |
download | op-kernel-dev-1aeb135f84fe40cf6ba1e3610ad2ca4cb9628089.zip op-kernel-dev-1aeb135f84fe40cf6ba1e3610ad2ca4cb9628089.tar.gz |
cfg80211: reg: Refactor calculation of bandwidth flags
The same piece of code appears at two places. Make a function from it.
Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/reg.c')
-rw-r--r-- | net/wireless/reg.c | 91 |
1 files changed, 37 insertions, 54 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 43b3e57..0a4f548 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1166,6 +1166,41 @@ static void chan_reg_rule_print_dbg(const struct ieee80211_regdomain *regd, #endif } +static uint32_t reg_rule_to_chan_bw_flags(const struct ieee80211_regdomain *regd, + const struct ieee80211_reg_rule *reg_rule, + const struct ieee80211_channel *chan) +{ + const struct ieee80211_freq_range *freq_range = NULL; + u32 max_bandwidth_khz, bw_flags = 0; + + freq_range = ®_rule->freq_range; + + max_bandwidth_khz = freq_range->max_bandwidth_khz; + /* Check if auto calculation requested */ + if (reg_rule->flags & NL80211_RRF_AUTO_BW) + max_bandwidth_khz = reg_get_max_bandwidth(regd, reg_rule); + + /* If we get a reg_rule we can assume that at least 5Mhz fit */ + if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq), + MHZ_TO_KHZ(10))) + bw_flags |= IEEE80211_CHAN_NO_10MHZ; + if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq), + MHZ_TO_KHZ(20))) + bw_flags |= IEEE80211_CHAN_NO_20MHZ; + + if (max_bandwidth_khz < MHZ_TO_KHZ(10)) + bw_flags |= IEEE80211_CHAN_NO_10MHZ; + if (max_bandwidth_khz < MHZ_TO_KHZ(20)) + bw_flags |= IEEE80211_CHAN_NO_20MHZ; + if (max_bandwidth_khz < MHZ_TO_KHZ(40)) + bw_flags |= IEEE80211_CHAN_NO_HT40; + if (max_bandwidth_khz < MHZ_TO_KHZ(80)) + bw_flags |= IEEE80211_CHAN_NO_80MHZ; + if (max_bandwidth_khz < MHZ_TO_KHZ(160)) + bw_flags |= IEEE80211_CHAN_NO_160MHZ; + return bw_flags; +} + /* * Note that right now we assume the desired channel bandwidth * is always 20 MHz for each individual channel (HT40 uses 20 MHz @@ -1178,11 +1213,9 @@ static void handle_channel(struct wiphy *wiphy, u32 flags, bw_flags = 0; const struct ieee80211_reg_rule *reg_rule = NULL; const struct ieee80211_power_rule *power_rule = NULL; - const struct ieee80211_freq_range *freq_range = NULL; struct wiphy *request_wiphy = NULL; struct regulatory_request *lr = get_last_request(); const struct ieee80211_regdomain *regd; - u32 max_bandwidth_khz; request_wiphy = wiphy_idx_to_wiphy(lr->wiphy_idx); @@ -1223,31 +1256,7 @@ static void handle_channel(struct wiphy *wiphy, chan_reg_rule_print_dbg(regd, chan, reg_rule); power_rule = ®_rule->power_rule; - freq_range = ®_rule->freq_range; - - max_bandwidth_khz = freq_range->max_bandwidth_khz; - /* Check if auto calculation requested */ - if (reg_rule->flags & NL80211_RRF_AUTO_BW) - max_bandwidth_khz = reg_get_max_bandwidth(regd, reg_rule); - - /* If we get a reg_rule we can assume that at least 5Mhz fit */ - if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq), - MHZ_TO_KHZ(10))) - bw_flags |= IEEE80211_CHAN_NO_10MHZ; - if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq), - MHZ_TO_KHZ(20))) - bw_flags |= IEEE80211_CHAN_NO_20MHZ; - - if (max_bandwidth_khz < MHZ_TO_KHZ(10)) - bw_flags |= IEEE80211_CHAN_NO_10MHZ; - if (max_bandwidth_khz < MHZ_TO_KHZ(20)) - bw_flags |= IEEE80211_CHAN_NO_20MHZ; - if (max_bandwidth_khz < MHZ_TO_KHZ(40)) - bw_flags |= IEEE80211_CHAN_NO_HT40; - if (max_bandwidth_khz < MHZ_TO_KHZ(80)) - bw_flags |= IEEE80211_CHAN_NO_80MHZ; - if (max_bandwidth_khz < MHZ_TO_KHZ(160)) - bw_flags |= IEEE80211_CHAN_NO_160MHZ; + bw_flags = reg_rule_to_chan_bw_flags(regd, reg_rule, chan); if (lr->initiator == NL80211_REGDOM_SET_BY_DRIVER && request_wiphy && request_wiphy == wiphy && @@ -1760,8 +1769,6 @@ static void handle_channel_custom(struct wiphy *wiphy, u32 bw_flags = 0; const struct ieee80211_reg_rule *reg_rule = NULL; const struct ieee80211_power_rule *power_rule = NULL; - const struct ieee80211_freq_range *freq_range = NULL; - u32 max_bandwidth_khz; u32 bw; for (bw = MHZ_TO_KHZ(20); bw >= MHZ_TO_KHZ(5); bw = bw / 2) { @@ -1786,31 +1793,7 @@ static void handle_channel_custom(struct wiphy *wiphy, chan_reg_rule_print_dbg(regd, chan, reg_rule); power_rule = ®_rule->power_rule; - freq_range = ®_rule->freq_range; - - max_bandwidth_khz = freq_range->max_bandwidth_khz; - /* Check if auto calculation requested */ - if (reg_rule->flags & NL80211_RRF_AUTO_BW) - max_bandwidth_khz = reg_get_max_bandwidth(regd, reg_rule); - - /* If we get a reg_rule we can assume that at least 5Mhz fit */ - if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq), - MHZ_TO_KHZ(10))) - bw_flags |= IEEE80211_CHAN_NO_10MHZ; - if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq), - MHZ_TO_KHZ(20))) - bw_flags |= IEEE80211_CHAN_NO_20MHZ; - - if (max_bandwidth_khz < MHZ_TO_KHZ(10)) - bw_flags |= IEEE80211_CHAN_NO_10MHZ; - if (max_bandwidth_khz < MHZ_TO_KHZ(20)) - bw_flags |= IEEE80211_CHAN_NO_20MHZ; - if (max_bandwidth_khz < MHZ_TO_KHZ(40)) - bw_flags |= IEEE80211_CHAN_NO_HT40; - if (max_bandwidth_khz < MHZ_TO_KHZ(80)) - bw_flags |= IEEE80211_CHAN_NO_80MHZ; - if (max_bandwidth_khz < MHZ_TO_KHZ(160)) - bw_flags |= IEEE80211_CHAN_NO_160MHZ; + bw_flags = reg_rule_to_chan_bw_flags(regd, reg_rule, chan); chan->dfs_state_entered = jiffies; chan->dfs_state = NL80211_DFS_USABLE; |