package/network/services/hostapd/patches/470-survey_data_fallback.patch

   1 --- a/src/ap/acs.c
   2 +++ b/src/ap/acs.c
   3 @@ -292,18 +292,12 @@ static void acs_fail(struct hostapd_ifac
   4  static long double
   5  acs_survey_interference_factor(struct freq_survey *survey, s8 min_nf)
   6  {
   7 -       long double factor, busy, total;
   8 +       long double factor, busy = 0, total;
   9
  10         if (survey->filled & SURVEY_HAS_CHAN_TIME_BUSY)
  11                 busy = survey->channel_time_busy;
  12         else if (survey->filled & SURVEY_HAS_CHAN_TIME_RX)
  13                 busy = survey->channel_time_rx;
  14 -       else {
  15 -               /* This shouldn't really happen as survey data is checked in
  16 -                * acs_sanity_check() */
  17 -               wpa_printf(MSG_ERROR, "ACS: Survey data missing");
  18 -               return 0;
  19 -       }
  20
  21         total = survey->channel_time;
  22
  23 @@ -392,20 +386,19 @@ static int acs_usable_vht80_chan(struct
  24  static int acs_survey_is_sufficient(struct freq_survey *survey)
  25  {
  26         if (!(survey->filled & SURVEY_HAS_NF)) {
  27 +               survey->nf = -95;
  28                 wpa_printf(MSG_INFO, "ACS: Survey is missing noise floor");
  29 -               return 0;
  30         }
  31
  32         if (!(survey->filled & SURVEY_HAS_CHAN_TIME)) {
  33 +               survey->channel_time = 0;
  34                 wpa_printf(MSG_INFO, "ACS: Survey is missing channel time");
  35 -               return 0;
  36         }
  37
  38         if (!(survey->filled & SURVEY_HAS_CHAN_TIME_BUSY) &&
  39             !(survey->filled & SURVEY_HAS_CHAN_TIME_RX)) {
  40                 wpa_printf(MSG_INFO,
  41                            "ACS: Survey is missing RX and busy time (at least one is required)");
  42 -               return 0;
  43         }
  44
  45         return 1;