mwl8k: refactor some conditionals for clarity

CC [M]  drivers/net/wireless/mwl8k.o
drivers/net/wireless/mwl8k.c: In function ‘mwl8k_bss_info_changed’:
drivers/net/wireless/mwl8k.c:3290:2: warning: ‘ap_mcs_rates’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(cmd->mcs_set, mcs_rates, 16);
  ^
drivers/net/wireless/mwl8k.c:4987:5: note: ‘ap_mcs_rates’ was declared here
  u8 ap_mcs_rates[16];
     ^

The warning was bogus.  But the conditionals were rather complicated,
with multiple redundant checks.  This consolidates the checking and
makes it more readable IMHO.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 77361af..9420fc6 100644 (file)
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -5019,35 +5019,36 @@ mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
                memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
 
                rcu_read_unlock();
-       }
 
-       if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
-           !priv->ap_fw) {
-               rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates);
-               if (rc)
-                       goto out;
+               if (changed & BSS_CHANGED_ASSOC) {
+                       if (!priv->ap_fw) {
+                               rc = mwl8k_cmd_set_rate(hw, vif,
+                                                       ap_legacy_rates,
+                                                       ap_mcs_rates);
+                               if (rc)
+                                       goto out;
 
-               rc = mwl8k_cmd_use_fixed_rate_sta(hw);
-               if (rc)
-                       goto out;
-       } else {
-               if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
-                   priv->ap_fw) {
-                       int idx;
-                       int rate;
+                               rc = mwl8k_cmd_use_fixed_rate_sta(hw);
+                               if (rc)
+                                       goto out;
+                       } else {
+                               int idx;
+                               int rate;
 
-                       /* Use AP firmware specific rate command.
-                        */
-                       idx = ffs(vif->bss_conf.basic_rates);
-                       if (idx)
-                               idx--;
+                               /* Use AP firmware specific rate command.
+                                */
+                               idx = ffs(vif->bss_conf.basic_rates);
+                               if (idx)
+                                       idx--;
 
-                       if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ)
-                               rate = mwl8k_rates_24[idx].hw_value;
-                       else
-                               rate = mwl8k_rates_50[idx].hw_value;
+                               if (hw->conf.chandef.chan->band ==
+                                   IEEE80211_BAND_2GHZ)
+                                       rate = mwl8k_rates_24[idx].hw_value;
+                               else
+                                       rate = mwl8k_rates_50[idx].hw_value;
 
-                       mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
+                               mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
+                       }
                }
        }