compile atheros noregulatory

README

$ apt-get install linux-headers-`uname -r`
$ apt-get install linux-source
$ mkdir -p ~/build/ath; cd ~/build/ath
$ tar -xvf /usr/src/linux-source-`uname -r`.tar.xz

# patch linux-source-`uname -r`/drivers/net/wireless/ath/regd.c

$ cp /boot/config-`uname -r` ~/build/ath/.config
$ cp /usr/src/linux-headers-`uname -r`/Module.symvers ~/build/ath/linux-source-`uname -r`/
$ cd linux-source-`uname -r`
$ make oldconfig
$ make prepare
$ make scripts
$ make SUBDIRS=drivers/net/wireless/ath modules

$ install -b ~/build/ath/drivers/net/wireless/ath/ath.ko /lib/modules/`uname -r`/kernel/drivers/net/wireless/ath/ath.ko
$ depmod -a

$ iw reg set US
$ nano /etc/default/crda
# add US to REGDOMAIN

# then reboot or load module by hand

noregulatory.patch

--- drivers/net/wireless/ath/regd.c	2017-09-13 00:12:11.038844554 +0200
+++ drivers/net/wireless/ath/regd.c	2017-09-13 00:13:32.676068380 +0200
@@ -341,6 +341,8 @@
 	struct ieee80211_channel *ch;
 	unsigned int i;
 
+	return;
+
 	for (band = 0; band < NUM_NL80211_BANDS; band++) {
 		if (!wiphy->bands[band])
 			continue;
@@ -374,6 +376,8 @@
 {
 	struct ieee80211_supported_band *sband;
 
+	return;
+
 	sband = wiphy->bands[NL80211_BAND_2GHZ];
 	if (!sband)
 		return;
@@ -402,6 +406,8 @@
 	struct ieee80211_channel *ch;
 	unsigned int i;
 
+	return;
+
 	if (!wiphy->bands[NL80211_BAND_5GHZ])
 		return;
 
@@ -632,6 +638,8 @@
 {
 	const struct ieee80211_regdomain *regd;
 
+	return 0;
+
 	wiphy->reg_notifier = reg_notifier;
 	wiphy->regulatory_flags |= REGULATORY_STRICT_REG |
 				   REGULATORY_CUSTOM_REG;