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

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Wed, 15 Jun 2016 17:31:48 +0200
   3 Subject: [PATCH] hostapd: implement fallback for incomplete survey data
   4
   5 --- a/src/ap/acs.c
   6 +++ b/src/ap/acs.c
   7 @@ -467,17 +467,17 @@ static int acs_get_bw_center_chan(int fr
   8  static int acs_survey_is_sufficient(struct freq_survey *survey)
   9  {
  10         if (!(survey->filled & SURVEY_HAS_NF)) {
  11 +               survey->nf = -95;
  12                 wpa_printf(MSG_INFO,
  13                            "ACS: Survey for freq %d is missing noise floor",
  14                            survey->freq);
  15 -               return 0;
  16         }
  17
  18         if (!(survey->filled & SURVEY_HAS_CHAN_TIME)) {
  19 +               survey->channel_time = 0;
  20                 wpa_printf(MSG_INFO,
  21                            "ACS: Survey for freq %d is missing channel time",
  22                            survey->freq);
  23 -               return 0;
  24         }
  25
  26         if (!(survey->filled & SURVEY_HAS_CHAN_TIME_BUSY) &&
  27 @@ -485,7 +485,6 @@ static int acs_survey_is_sufficient(stru
  28                 wpa_printf(MSG_INFO,
  29                            "ACS: Survey for freq %d is missing RX and busy time (at least one is required)",
  30                            survey->freq);
  31 -               return 0;
  32         }
  33
  34         return 1;