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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>
This commit is contained in:
John Linville 2015-08-10 12:05:39 -04:00 committed by Kalle Valo
parent 9ff4b6de26
commit bafc6e4cd8
1 changed files with 25 additions and 24 deletions
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49
drivers/net/wireless/mwl8k.c
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@ -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); memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
rcu_read_unlock(); rcu_read_unlock();
}
if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc && if (changed & BSS_CHANGED_ASSOC) {
!priv->ap_fw) { if (!priv->ap_fw) {
rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates); rc = mwl8k_cmd_set_rate(hw, vif,
if (rc) ap_legacy_rates,
goto out; ap_mcs_rates);
if (rc)
goto out;
rc = mwl8k_cmd_use_fixed_rate_sta(hw); rc = mwl8k_cmd_use_fixed_rate_sta(hw);
if (rc) if (rc)
goto out; goto out;
} else { } else {
if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc && int idx;
priv->ap_fw) { int rate;
int idx;
int rate;
/* Use AP firmware specific rate command. /* Use AP firmware specific rate command.
*/ */
idx = ffs(vif->bss_conf.basic_rates); idx = ffs(vif->bss_conf.basic_rates);
if (idx) if (idx)
idx--; idx--;
if (hw->conf.chandef.chan->band == IEEE80211_BAND_2GHZ) if (hw->conf.chandef.chan->band ==
rate = mwl8k_rates_24[idx].hw_value; IEEE80211_BAND_2GHZ)
else rate = mwl8k_rates_24[idx].hw_value;
rate = mwl8k_rates_50[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);
}
} }
} }