From ed26185bf6b2d7e81c58c3a310b78e2c48b052d8 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 22 May 2025 10:09:41 +0200 Subject: [PATCH] hostapd: tweak ACS retry behavior When running ACS on multi-radio devices, ACS on one band can block another. Increase the number of retries and prevent bouncing interfaces between AP and STA mode during attempts. Signed-off-by: Felix Fietkau --- .../hostapd/patches/360-acs_retry.patch | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 package/network/services/hostapd/patches/360-acs_retry.patch diff --git a/package/network/services/hostapd/patches/360-acs_retry.patch b/package/network/services/hostapd/patches/360-acs_retry.patch new file mode 100644 index 00000000000..e858ac24e7b --- /dev/null +++ b/package/network/services/hostapd/patches/360-acs_retry.patch @@ -0,0 +1,23 @@ +--- a/src/ap/acs.h ++++ b/src/ap/acs.h +@@ -15,7 +15,7 @@ + enum hostapd_chan_status acs_init(struct hostapd_iface *iface); + void acs_cleanup(struct hostapd_iface *iface); + +-#define ACS_SCAN_RETRY_MAX_COUNT 15 ++#define ACS_SCAN_RETRY_MAX_COUNT 50 + #define ACS_SCAN_RETRY_INTERVAL 5 + + #else /* CONFIG_ACS */ +--- a/src/drivers/driver_nl80211_scan.c ++++ b/src/drivers/driver_nl80211_scan.c +@@ -455,6 +455,9 @@ int wpa_driver_nl80211_scan(struct i802_ + } + #endif /* CONFIG_IEEE80211BE */ + ++ if (ret == -EBUSY) ++ goto fail; ++ + /* + * mac80211 does not allow scan requests in AP mode, so + * try to do this in station mode. -- 2.47.2