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ath9k: fix regulatory issues with multiple cards 

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23168 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Felix Fietkau 2010-10-01 15:14:15 +00:00
parent b587a7b92a
commit 17531e4aa7
1 changed files with 91 additions and 0 deletions
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91
package/mac80211/patches/520-ath9k_multiple_cards_fix.patch Normal file
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@ -0,0 +1,91 @@
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -57,7 +57,7 @@ MODULE_PARM_DESC(blink, "Enable LED blin
* on 5 MHz steps, we support the channels which we know
* we have calibration data for all cards though to make
* this static */
-static struct ieee80211_channel ath9k_2ghz_chantable[] = {
+static const struct ieee80211_channel ath9k_2ghz_chantable[] = {
CHAN2G(2412, 0), /* Channel 1 */
CHAN2G(2417, 1), /* Channel 2 */
CHAN2G(2422, 2), /* Channel 3 */
@@ -78,7 +78,7 @@ static struct ieee80211_channel ath9k_2g
* on 5 MHz steps, we support the channels which we know
* we have calibration data for all cards though to make
* this static */
-static struct ieee80211_channel ath9k_5ghz_chantable[] = {
+static const struct ieee80211_channel ath9k_5ghz_chantable[] = {
/* _We_ call this UNII 1 */
CHAN5G(5180, 14), /* Channel 36 */
CHAN5G(5200, 15), /* Channel 40 */
@@ -478,10 +478,17 @@ err:
return -EIO;
}
-static void ath9k_init_channels_rates(struct ath_softc *sc)
+static int ath9k_init_channels_rates(struct ath_softc *sc)
{
+ void *channels;
+
if (test_bit(ATH9K_MODE_11G, sc->sc_ah->caps.wireless_modes)) {
- sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable;
+ channels = kmemdup(ath9k_2ghz_chantable,
+ sizeof(ath9k_2ghz_chantable), GFP_KERNEL);
+ if (!channels)
+ return -ENOMEM;
+
+ sc->sbands[IEEE80211_BAND_2GHZ].channels = channels;
sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
sc->sbands[IEEE80211_BAND_2GHZ].n_channels =
ARRAY_SIZE(ath9k_2ghz_chantable);
@@ -491,7 +498,15 @@ static void ath9k_init_channels_rates(st
}
if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) {
- sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable;
+ channels = kmemdup(ath9k_5ghz_chantable,
+ sizeof(ath9k_5ghz_chantable), GFP_KERNEL);
+ if (!channels) {
+ if (sc->sbands[IEEE80211_BAND_2GHZ].channels)
+ kfree(sc->sbands[IEEE80211_BAND_2GHZ].channels);
+ return -ENOMEM;
+ }
+
+ sc->sbands[IEEE80211_BAND_5GHZ].channels = channels;
sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ;
sc->sbands[IEEE80211_BAND_5GHZ].n_channels =
ARRAY_SIZE(ath9k_5ghz_chantable);
@@ -500,6 +515,7 @@ static void ath9k_init_channels_rates(st
sc->sbands[IEEE80211_BAND_5GHZ].n_bitrates =
ARRAY_SIZE(ath9k_legacy_rates) - 4;
}
+ return 0;
}
static void ath9k_init_misc(struct ath_softc *sc)
@@ -602,8 +618,11 @@ static int ath9k_init_softc(u16 devid, s
if (ret)
goto err_btcoex;
+ ret = ath9k_init_channels_rates(sc);
+ if (ret)
+ goto err_btcoex;
+
ath9k_init_crypto(sc);
- ath9k_init_channels_rates(sc);
ath9k_init_misc(sc);
return 0;
@@ -784,6 +803,12 @@ static void ath9k_deinit_softc(struct at
{
int i = 0;
+ if (sc->sbands[IEEE80211_BAND_2GHZ].channels)
+ kfree(sc->sbands[IEEE80211_BAND_2GHZ].channels);
+
+ if (sc->sbands[IEEE80211_BAND_5GHZ].channels)
+ kfree(sc->sbands[IEEE80211_BAND_5GHZ].channels);
+
if ((sc->btcoex.no_stomp_timer) &&
sc->sc_ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer);