Commit d43c7b37 authored by Vladimir Koutny's avatar Vladimir Koutny Committed by John W. Linville

mac80211: correct use_short_preamble handling

ERP IE bit for preamble mode is 0 for short and 1 for long, not the other
way around. This fixes the value reported to the driver via
bss_conf->use_short_preamble field.
Signed-off-by: default avatarVladimir Koutny <vlado@ksp.sk>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent e6458901
......@@ -319,7 +319,7 @@ static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata,
struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
bool preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
bool use_short_preamble = (erp_value & WLAN_ERP_BARKER_PREAMBLE) == 0;
DECLARE_MAC_BUF(mac);
u32 changed = 0;
......@@ -335,16 +335,15 @@ static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata,
changed |= BSS_CHANGED_ERP_CTS_PROT;
}
if (preamble_mode != bss_conf->use_short_preamble) {
if (use_short_preamble != bss_conf->use_short_preamble) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: switched to %s barker preamble"
" (BSSID=%s)\n",
sdata->dev->name,
(preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ?
"short" : "long",
use_short_preamble ? "short" : "long",
print_mac(mac, ifsta->bssid));
}
bss_conf->use_short_preamble = preamble_mode;
bss_conf->use_short_preamble = use_short_preamble;
changed |= BSS_CHANGED_ERP_PREAMBLE;
}
......
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