package/network/services/hostapd/patches/002-mesh-Set-correct-secondary-channel-offset-if-HT40-is.patch

   1 From: Masashi Honma <masashi.honma@gmail.com>
   2 Date: Tue, 26 Jul 2016 11:45:40 +0900
   3 Subject: [PATCH] mesh: Set correct secondary channel offset if HT40 is
   4  disabled
   5
   6 Previously, secondary channel offset could be non zero even though
   7 disable_ht40=1. This patch fixes it.
   8
   9 Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
  10 ---
  11
  12 --- a/wpa_supplicant/wpa_supplicant.c
  13 +++ b/wpa_supplicant/wpa_supplicant.c
  14 @@ -1901,20 +1901,27 @@ void ibss_mesh_setup_freq(struct wpa_sup
  15                         break;
  16                 }
  17         }
  18 +#ifdef CONFIG_HT_OVERRIDES
  19 +       if (ssid->disable_ht40)
  20 +               ht40 = 0;
  21 +#endif /* CONFIG_HT_OVERRIDES */
  22
  23 -       /* Find secondary channel */
  24 -       for (i = 0; i < mode->num_channels; i++) {
  25 -               sec_chan = &mode->channels[i];
  26 -               if (sec_chan->chan == channel + ht40 * 4)
  27 -                       break;
  28 -               sec_chan = NULL;
  29 -       }
  30 -       if (!sec_chan)
  31 -               return;
  32 +       if (ht40) {
  33 +               /* Find secondary channel */
  34 +               for (i = 0; i < mode->num_channels; i++) {
  35 +                       sec_chan = &mode->channels[i];
  36 +                       if (sec_chan->chan == channel + ht40 * 4)
  37 +                               break;
  38 +                       sec_chan = NULL;
  39 +               }
  40 +               if (!sec_chan)
  41 +                       return;
  42
  43 -       /* Check secondary channel flags */
  44 -       if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
  45 -               return;
  46 +               /* Check secondary channel flags */
  47 +               if (sec_chan->flag &
  48 +                   (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
  49 +                       return;
  50 +       }
  51
  52         freq->channel = pri_chan->chan;
  53
  54 @@ -1930,6 +1937,7 @@ void ibss_mesh_setup_freq(struct wpa_sup
  55                 freq->sec_channel_offset = 1;
  56                 break;
  57         default:
  58 +               freq->sec_channel_offset = 0;
  59                 break;
  60         }
  61