diff options
| -rw-r--r-- | net/wireless/core.h | 3 | ||||
| -rw-r--r-- | net/wireless/reg.c | 27 | ||||
| -rw-r--r-- | net/wireless/util.c | 15 |
3 files changed, 25 insertions, 20 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index af6e023020b1..bc8ba6e57519 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -430,6 +430,9 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev); void cfg80211_process_wdev_events(struct wireless_dev *wdev); +bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range, + u32 center_freq_khz, u32 bw_khz); + /** * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable * @wiphy: the wiphy to validate against diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 5dbac3749738..753efcd51fa3 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -748,21 +748,6 @@ static bool is_valid_rd(const struct ieee80211_regdomain *rd) return true; } -static bool reg_does_bw_fit(const struct ieee80211_freq_range *freq_range, - u32 center_freq_khz, u32 bw_khz) -{ - u32 start_freq_khz, end_freq_khz; - - start_freq_khz = center_freq_khz - (bw_khz/2); - end_freq_khz = center_freq_khz + (bw_khz/2); - - if (start_freq_khz >= freq_range->start_freq_khz && - end_freq_khz <= freq_range->end_freq_khz) - return true; - - return false; -} - /** * freq_in_rule_band - tells us if a frequency is in a frequency band * @freq_range: frequency rule we want to query @@ -1070,7 +1055,7 @@ freq_reg_info_regd(u32 center_freq, if (!band_rule_found) band_rule_found = freq_in_rule_band(fr, center_freq); - bw_fits = reg_does_bw_fit(fr, center_freq, bw); + bw_fits = cfg80211_does_bw_fit_range(fr, center_freq, bw); if (band_rule_found && bw_fits) return rr; @@ -1138,11 +1123,13 @@ static uint32_t reg_rule_to_chan_bw_flags(const struct ieee80211_regdomain *regd 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))) + if (!cfg80211_does_bw_fit_range(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))) + if (!cfg80211_does_bw_fit_range(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)) diff --git a/net/wireless/util.c b/net/wireless/util.c index c91bc25c4dd5..cd8a7ae55e7d 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1847,6 +1847,21 @@ void cfg80211_free_nan_func(struct cfg80211_nan_func *f) } EXPORT_SYMBOL(cfg80211_free_nan_func); +bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range, + u32 center_freq_khz, u32 bw_khz) +{ + u32 start_freq_khz, end_freq_khz; + + start_freq_khz = center_freq_khz - (bw_khz / 2); + end_freq_khz = center_freq_khz + (bw_khz / 2); + + if (start_freq_khz >= freq_range->start_freq_khz && + end_freq_khz <= freq_range->end_freq_khz) + return true; + + return false; +} + /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ /* Ethernet-II snap header (RFC1042 for most EtherTypes) */ const unsigned char rfc1042_header[] __aligned(2) = |