From 1bd773c077deeeb2d9ced1fdb6d846169b8e7e4a Mon Sep 17 00:00:00 2001 From: =?utf8?q?Richard=20Sch=C3=BCtz?= Date: Thu, 7 Sep 2017 17:47:43 +0200 Subject: [PATCH] wireless: set correct mandatory rate flags MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit According to IEEE Std 802.11-2016 (16.2.3.4 Long PHY SIGNAL field) all of the following rates are mandatory for a HR/DSSS PHY: 1 Mb/s, 2 Mb/s, 5.5 Mb/s and 11 Mb/s. Set IEEE80211_RATE_MANDATORY_B flag for all of these instead of just 1 Mb/s to correctly reflect this. Signed-off-by: Richard Schütz [johannes: use switch statement] Signed-off-by: Johannes Berg --- net/wireless/util.c | 30 ++++++++++++++---------------- 1 file changed, 14 insertions(+), 16 deletions(-) diff --git a/net/wireless/util.c b/net/wireless/util.c index 7dcdf67cba29..7a1fcc6ee060 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -157,32 +157,30 @@ static void set_mandatory_flags_band(struct ieee80211_supported_band *sband) case NL80211_BAND_2GHZ: want = 7; for (i = 0; i < sband->n_bitrates; i++) { - if (sband->bitrates[i].bitrate == 10) { + switch (sband->bitrates[i].bitrate) { + case 10: + case 20: + case 55: + case 110: sband->bitrates[i].flags |= IEEE80211_RATE_MANDATORY_B | IEEE80211_RATE_MANDATORY_G; want--; - } - - if (sband->bitrates[i].bitrate == 20 || - sband->bitrates[i].bitrate == 55 || - sband->bitrates[i].bitrate == 110 || - sband->bitrates[i].bitrate == 60 || - sband->bitrates[i].bitrate == 120 || - sband->bitrates[i].bitrate == 240) { + break; + case 60: + case 120: + case 240: sband->bitrates[i].flags |= IEEE80211_RATE_MANDATORY_G; want--; - } - - if (sband->bitrates[i].bitrate != 10 && - sband->bitrates[i].bitrate != 20 && - sband->bitrates[i].bitrate != 55 && - sband->bitrates[i].bitrate != 110) + /* fall through */ + default: sband->bitrates[i].flags |= IEEE80211_RATE_ERP_G; + break; + } } - WARN_ON(want != 0 && want != 3 && want != 6); + WARN_ON(want != 0 && want != 3); break; case NL80211_BAND_60GHZ: /* check for mandatory HT MCS 1..4 */ -- 2.30.2