[openwrt/openwrt] hostapd: improve channel switch support

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/8e2ca15726bcfcf43051c3a2f7e2f96a51f0f001

commit 8e2ca15726bcfcf43051c3a2f7e2f96a51f0f001
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Tue May 18 15:58:03 2021 +0200

    hostapd: improve channel switch support
    
    Instead of requiring the user to call it on each BSS individually,
    run it on all BSSs internally.
    
    Signed-off-by: John Crispin <john at phrozen.org>
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 package/network/services/hostapd/src/src/ap/ubus.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/package/network/services/hostapd/src/src/ap/ubus.c b/package/network/services/hostapd/src/src/ap/ubus.c
index a34695f36a..bfa44e2915 100644
--- a/package/network/services/hostapd/src/src/ap/ubus.c
+++ b/package/network/services/hostapd/src/src/ap/ubus.c
@@ -728,6 +728,8 @@ hostapd_switch_chan(struct ubus_context *ctx, struct ubus_object *obj,
 	struct blob_attr *tb[__CSA_MAX];
 	struct hostapd_data *hapd = get_hapd_from_object(obj);
 	struct csa_settings css;
+	int ret = UBUS_STATUS_OK;
+	int i;
 
 	blobmsg_parse(csa_policy, __CSA_MAX, tb, blob_data(msg), blob_len(msg));
 
@@ -752,10 +754,14 @@ hostapd_switch_chan(struct ubus_context *ctx, struct ubus_object *obj,
 	SET_CSA_SETTING(CSA_VHT, freq_params.vht_enabled, bool);
 	SET_CSA_SETTING(CSA_BLOCK_TX, block_tx, bool);
 
+	for (i = 0; i < hapd->iface->num_bss; i++) {
+		struct hostapd_data *bss = hapd->iface->bss[i];
 
-	if (hostapd_switch_channel(hapd, &css) != 0)
-		return UBUS_STATUS_NOT_SUPPORTED;
-	return UBUS_STATUS_OK;
+		if (hostapd_switch_channel(bss, &css) != 0)
+			ret = UBUS_STATUS_NOT_SUPPORTED;
+	}
+
+	return ret;
 #undef SET_CSA_SETTING
 }
 #endif