[PATCH 3.16 076/192] mwifiex: do not update MCS set from hostapd

Ben Hutchings
2017-10-09T13:48:39Z

From: Ganapathi Bhat <gbhat@marvell.com>

commit 8a063a27815a759b99ad710402da1ccd1b0987f7 upstream.

We should not copy the MCS set from hostapd RX-STBC. We
have to just use the MCS set supported by the hardware.
This fixes an issue, where mwifiex is advertising wrong
MCS sets in beacons.

Fixes: 474a41e94dfc ("mwifiex: update MCS set as per RX-STBC bit from hostapd")
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
[bwh: Backported to 3.16:
- Deleted code is slightly different
- Adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/net/wireless/mwifiex/fw.h | 5 -----
drivers/net/wireless/mwifiex/uap_cmd.c | 22 ----------------------
2 files changed, 27 deletions(-)

--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -203,11 +203,6 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {

#define MWIFIEX_DEF_AMPDU IEEE80211_HT_AMPDU_PARM_FACTOR

-#define GET_RXSTBC(x) (x & IEEE80211_HT_CAP_RX_STBC)
-#define MWIFIEX_RX_STBC1 0x0100
-#define MWIFIEX_RX_STBC12 0x0200
-#define MWIFIEX_RX_STBC123 0x0300
-
/* dev_cap bitmap
* BIT
* 0-16 reserved
--- a/drivers/net/wireless/mwifiex/uap_cmd.c
+++ b/drivers/net/wireless/mwifiex/uap_cmd.c
@@ -159,7 +159,6 @@ mwifiex_set_ht_params(struct mwifiex_pri
struct cfg80211_ap_settings *params)
{
const u8 *ht_ie;
- u16 cap_info;

if (!ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
return;
@@ -169,27 +168,6 @@ mwifiex_set_ht_params(struct mwifiex_pri
if (ht_ie) {
memcpy(&bss_cfg->ht_cap, ht_ie + 2,
sizeof(struct ieee80211_ht_cap));
- cap_info = le16_to_cpu(bss_cfg->ht_cap.cap_info);
- memset(&bss_cfg->ht_cap.mcs, 0,
- priv->adapter->number_of_antenna);
- switch (GET_RXSTBC(cap_info)) {
- case MWIFIEX_RX_STBC1:
- /* HT_CAP 1X1 mode */
- bss_cfg->ht_cap.mcs.rx_mask[0] = 0xff;
- break;
- case MWIFIEX_RX_STBC12: /* fall through */
- case MWIFIEX_RX_STBC123:
- /* HT_CAP 2X2 mode */
- bss_cfg->ht_cap.mcs.rx_mask[0] = 0xff;
- bss_cfg->ht_cap.mcs.rx_mask[1] = 0xff;
- break;
- default:
- dev_warn(priv->adapter->dev,
- "Unsupported RX-STBC, default to 2x2\n");
- bss_cfg->ht_cap.mcs.rx_mask[0] = 0xff;
- bss_cfg->ht_cap.mcs.rx_mask[1] = 0xff;
- break;
- }
priv->ap_11n_enabled = 1;
} else {
memset(&bss_cfg->ht_cap , 0, sizeof(struct ieee80211_ht_cap));