0099-atheros.patch

diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index e25bfdf..ac42657 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -268,6 +268,8 @@ static void ath_force_clear_no_ir_chan(struct wiphy *wiphy,
 {
 	const struct ieee80211_reg_rule *reg_rule;
 
+	return;
+
 	reg_rule = freq_reg_info(wiphy, MHZ_TO_KHZ(ch->center_freq));
 	if (IS_ERR(reg_rule))
 		return;
@@ -378,6 +380,8 @@ ath_reg_apply_ir_flags(struct wiphy *wiphy,
 {
 	struct ieee80211_supported_band *sband;
 
+	return;
+
 	sband = wiphy->bands[NL80211_BAND_2GHZ];
 	if (!sband)
 		return;
@@ -407,6 +411,8 @@ static void ath_reg_apply_radar_flags(struct wiphy *wiphy,
 	struct ieee80211_channel *ch;
 	unsigned int i;
 
+	return;
+
 	if (!wiphy->bands[NL80211_BAND_5GHZ])
 		return;
 
@@ -638,6 +644,8 @@ ath_regd_init_wiphy(struct ath_regulatory *reg,
 {
 	const struct ieee80211_regdomain *regd;
 
+	return 0;
+
 	wiphy->reg_notifier = reg_notifier;
 	wiphy->regulatory_flags |= REGULATORY_STRICT_REG |
 				   REGULATORY_CUSTOM_REG;

readme.txt

$ apk add alpine-sdk

$ adduser builder
$ addgroup builder abuild
$ su builder
$ cd

$ git clone --single-branch --branch 3.12-stable https://git.alpinelinux.org/aports

$ cd aports/main/linux-lts

$ sudo mkdir -p /var/cache/distfiles
$ sudo chmod a+w /var/cache/distfiles
$ abuild-keygen -a -i

$ abuild fetch

# insert to APKBUILD source section:
0099-atheros.patch
# insert to APKBUILD sha512sums section:
 bb4443686ec3c4eca87472ad8a99416763df1cdf8f15eabdec6468336d2e0e0f0ba18dd6e814b0c7fa777956773feb2bc624441552e9e9c096a86054aa68dbd8  0099-atheros.patch

$ abuild checksum
$ abuild deps
$ abuild -r