Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753983AbbHJQAX (ORCPT ); Mon, 10 Aug 2015 12:00:23 -0400 Received: from charlotte.tuxdriver.com ([70.61.120.58]:58005 "EHLO smtp.tuxdriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750958AbbHJQAT (ORCPT ); Mon, 10 Aug 2015 12:00:19 -0400 From: "John W. Linville" To: linux-kernel@vger.kernel.org Cc: Kalle Valo , Lennert Buytenhek , "John W. Linville" Subject: [PATCH] mwl8k: refactor some conditionals for clarity Date: Mon, 10 Aug 2015 11:53:28 -0400 Message-Id: <1439222008-5343-1-git-send-email-linville@tuxdriver.com> X-Mailer: git-send-email 2.4.3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2732 Lines: 91 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 --- drivers/net/wireless/mwl8k.c | 49 ++++++++++++++++++++++---------------------- 1 file changed, 25 insertions(+), 24 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 77361af68b18..9420fc61c2e6 100644 --- 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); + } } } -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/