[PATCH 5.17 137/158] cfg80211: retrieve S1G operating channel number

Greg Kroah-Hartman
2022-05-23T18:08:56Z

From: Kieran Frewen <kieran.frewen@morsemicro.com>

[ Upstream commit e847ffe2d146cfd52980ca688d84358e024a6e70 ]

When retrieving the S1G channel number from IEs, we should retrieve
the operating channel instead of the primary channel. The S1G operation
element specifies the main channel of operation as the oper channel,
unlike for HT and HE which specify their main channel of operation as
the primary channel.

Signed-off-by: Kieran Frewen <kieran.frewen@morsemicro.com>
Signed-off-by: Bassem Dawood <bassem@morsemicro.com>
Link: https://lore.kernel.org/r/20220420041321.3788789-1-kieran.frewen@morsemicro.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/wireless/scan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 4a6d86432910..6d82bd9eaf8c 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1829,7 +1829,7 @@ int cfg80211_get_ies_channel_number(const u8 *ie, size_t ielen,
if (tmp && tmp->datalen >= sizeof(struct ieee80211_s1g_oper_ie)) {
struct ieee80211_s1g_oper_ie *s1gop = (void *)tmp->data;

- return s1gop->primary_ch;
+ return s1gop->oper_ch;
}
} else {
tmp = cfg80211_find_elem(WLAN_EID_DS_PARAMS, ie, ielen);
--
2.35.1