vnt_set_bss_mode needs to be called on all changes to BSS_CHANGED_BASIC_RATES,
BSS_CHANGED_ERP_PREAMBLE and BSS_CHANGED_ERP_SLOT

Remove all other calls and vnt_update_ifs which is called in vnt_set_bss_mode.

Fixes an issue that preamble mode is not being updated correctly.

Fixes: c12603576e06 ("staging: vt6656: Only call vnt_set_bss_mode on basic 
rates change.")
Cc: stable <sta...@vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvbox...@gmail.com>
---
 drivers/staging/vt6656/main_usb.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/vt6656/main_usb.c 
b/drivers/staging/vt6656/main_usb.c
index fcd0fe5e6d72..85d4133315b1 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -625,8 +625,6 @@ static int vnt_add_interface(struct ieee80211_hw *hw, 
struct ieee80211_vif *vif)
 
        priv->op_mode = vif->type;
 
-       vnt_set_bss_mode(priv);
-
        /* LED blink on TX */
        vnt_mac_set_led(priv, LEDSTS_STS, LEDSTS_INTER);
 
@@ -706,7 +704,6 @@ static void vnt_bss_info_changed(struct ieee80211_hw *hw,
                priv->basic_rates = conf->basic_rates;
 
                vnt_update_top_rates(priv);
-               vnt_set_bss_mode(priv);
 
                dev_dbg(&priv->usb->dev, "basic rates %x\n", conf->basic_rates);
        }
@@ -735,11 +732,14 @@ static void vnt_bss_info_changed(struct ieee80211_hw *hw,
                        priv->short_slot_time = false;
 
                vnt_set_short_slot_time(priv);
-               vnt_update_ifs(priv);
                vnt_set_vga_gain_offset(priv, priv->bb_vga[0]);
                vnt_update_pre_ed_threshold(priv, false);
        }
 
+       if (changed & (BSS_CHANGED_BASIC_RATES | BSS_CHANGED_ERP_PREAMBLE |
+                      BSS_CHANGED_ERP_SLOT))
+               vnt_set_bss_mode(priv);
+
        if (changed & (BSS_CHANGED_TXPOWER | BSS_CHANGED_BANDWIDTH))
                vnt_rf_setpower(priv, conf->chandef.chan);
 
-- 
2.25.1
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