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-rw-r--r--package/network/services/hostapd/patches/470-survey_data_fallback.patch45
1 files changed, 45 insertions, 0 deletions
diff --git a/package/network/services/hostapd/patches/470-survey_data_fallback.patch b/package/network/services/hostapd/patches/470-survey_data_fallback.patch
new file mode 100644
index 0000000000..4e40a87558
--- /dev/null
+++ b/package/network/services/hostapd/patches/470-survey_data_fallback.patch
@@ -0,0 +1,45 @@
+--- a/src/ap/acs.c
++++ b/src/ap/acs.c
+@@ -292,18 +292,12 @@ static void acs_fail(struct hostapd_ifac
+ static long double
+ acs_survey_interference_factor(struct freq_survey *survey, s8 min_nf)
+ {
+- long double factor, busy, total;
++ long double factor, busy = 0, total;
+
+ if (survey->filled & SURVEY_HAS_CHAN_TIME_BUSY)
+ busy = survey->channel_time_busy;
+ else if (survey->filled & SURVEY_HAS_CHAN_TIME_RX)
+ busy = survey->channel_time_rx;
+- else {
+- /* This shouldn't really happen as survey data is checked in
+- * acs_sanity_check() */
+- wpa_printf(MSG_ERROR, "ACS: Survey data missing");
+- return 0;
+- }
+
+ total = survey->channel_time;
+
+@@ -395,20 +389,19 @@ static int acs_usable_vht80_chan(struct
+ static int acs_survey_is_sufficient(struct freq_survey *survey)
+ {
+ if (!(survey->filled & SURVEY_HAS_NF)) {
++ survey->nf = -95;
+ wpa_printf(MSG_INFO, "ACS: Survey is missing noise floor");
+- return 0;
+ }
+
+ if (!(survey->filled & SURVEY_HAS_CHAN_TIME)) {
++ survey->channel_time = 0;
+ wpa_printf(MSG_INFO, "ACS: Survey is missing channel time");
+- return 0;
+ }
+
+ if (!(survey->filled & SURVEY_HAS_CHAN_TIME_BUSY) &&
+ !(survey->filled & SURVEY_HAS_CHAN_TIME_RX)) {
+ wpa_printf(MSG_INFO,
+ "ACS: Survey is missing RX and busy time (at least one is required)");
+- return 0;
+ }
+
+ return 1;