diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2024-01-29 19:34:48 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-02-08 13:07:38 +0100 |
| commit | 8616f27b3fb0d47be053d7bebc9539171a514917 (patch) | |
| tree | 8f1ceb4073b4dfb925fb01b227613ff60479634b /net/mac80211/util.c | |
| parent | wifi: cfg80211: simplify cfg80211_chandef_compatible() (diff) | |
| download | linux-8616f27b3fb0d47be053d7bebc9539171a514917.tar.xz linux-8616f27b3fb0d47be053d7bebc9539171a514917.zip | |
wifi: mac80211: use cfg80211_chandef_primary_freq()
Instead of calculating the new primary 40/80/160 MHz
center frequency here, use the new helper function from
cfg80211.
Link: https://msgid.link/20240129194108.eb59d6433d18.I74b745f0d1a32e779fb25d50c56407be7c35b840@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 49eef33b5e70..63a88169d53d 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -4365,8 +4365,9 @@ EXPORT_SYMBOL(ieee80211_radar_detected); void ieee80211_chandef_downgrade(struct cfg80211_chan_def *c, struct ieee80211_conn_settings *conn) { + /* no-HT indicates nothing to do */ + enum nl80211_chan_width new_primary_width = NL80211_CHAN_WIDTH_20_NOHT; struct ieee80211_conn_settings _ignored = {}; - int tmp; /* allow passing NULL if caller doesn't care */ if (!conn) @@ -4390,12 +4391,7 @@ void ieee80211_chandef_downgrade(struct cfg80211_chan_def *c, conn->bw_limit = IEEE80211_CONN_BW_LIMIT_20; break; case NL80211_CHAN_WIDTH_80: - tmp = (30 + c->chan->center_freq - c->center_freq1)/20; - /* n_P40 */ - tmp /= 2; - /* freq_P40 */ - c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; - c->width = NL80211_CHAN_WIDTH_40; + new_primary_width = NL80211_CHAN_WIDTH_40; if (conn->mode == IEEE80211_CONN_MODE_VHT) conn->mode = IEEE80211_CONN_MODE_HT; conn->bw_limit = IEEE80211_CONN_BW_LIMIT_40; @@ -4406,21 +4402,11 @@ void ieee80211_chandef_downgrade(struct cfg80211_chan_def *c, conn->bw_limit = IEEE80211_CONN_BW_LIMIT_80; break; case NL80211_CHAN_WIDTH_160: - /* n_P20 */ - tmp = (70 + c->chan->center_freq - c->center_freq1)/20; - /* n_P80 */ - tmp /= 4; - c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; - c->width = NL80211_CHAN_WIDTH_80; + new_primary_width = NL80211_CHAN_WIDTH_80; conn->bw_limit = IEEE80211_CONN_BW_LIMIT_80; break; case NL80211_CHAN_WIDTH_320: - /* n_P20 */ - tmp = (150 + c->chan->center_freq - c->center_freq1) / 20; - /* n_P160 */ - tmp /= 8; - c->center_freq1 = c->center_freq1 - 80 + 160 * tmp; - c->width = NL80211_CHAN_WIDTH_160; + new_primary_width = NL80211_CHAN_WIDTH_160; conn->bw_limit = IEEE80211_CONN_BW_LIMIT_160; break; case NL80211_CHAN_WIDTH_1: @@ -4442,6 +4428,12 @@ void ieee80211_chandef_downgrade(struct cfg80211_chan_def *c, break; } + if (new_primary_width != NL80211_CHAN_WIDTH_20_NOHT) { + c->center_freq1 = + cfg80211_chandef_primary_freq(c, new_primary_width); + c->width = new_primary_width; + } + WARN_ON_ONCE(!cfg80211_chandef_valid(c)); } |