From patchwork Wed Nov 1 11:35:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Antipov X-Patchwork-Id: 740328 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3FD6C4167B for ; Wed, 1 Nov 2023 11:36:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235225AbjKALgJ (ORCPT ); Wed, 1 Nov 2023 07:36:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45576 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235212AbjKALgI (ORCPT ); Wed, 1 Nov 2023 07:36:08 -0400 Received: from forward102a.mail.yandex.net (forward102a.mail.yandex.net [IPv6:2a02:6b8:c0e:500:1:45:d181:d102]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B669FD for ; Wed, 1 Nov 2023 04:36:01 -0700 (PDT) Received: from mail-nwsmtp-smtp-production-main-85.iva.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-85.iva.yp-c.yandex.net [IPv6:2a02:6b8:c0c:1f22:0:640:93cc:0]) by forward102a.mail.yandex.net (Yandex) with ESMTP id 03D9160A63; Wed, 1 Nov 2023 14:35:56 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-85.iva.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id rZUntIRDWGk0-f3LJ4w82; Wed, 01 Nov 2023 14:35:55 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1698838555; bh=BgMIquzgr2FzCtVMNyQVnh6Qc0UW+oo58AAmi9AQHKI=; h=Message-ID:Date:In-Reply-To:Cc:Subject:References:To:From; b=d8CZB/P7YyOCnourIKWkUOUFRAgKaD3sk/zOdRZp1gMpJm6X1+4jTDTd/DofbrfyY nu5fG3q5cJ32E5oGjwbs+HK42IF7FeGCSVVj5SUZj7owBXTXE3h6QZCsb0lDmuWT1C hHWtd15J618lxnJiCPFRVD/BVzHsll3BQMIWNn20= Authentication-Results: mail-nwsmtp-smtp-production-main-85.iva.yp-c.yandex.net; dkim=pass header.i=@yandex.ru From: Dmitry Antipov To: Ping-Ke Shih Cc: Kalle Valo , linux-wireless@vger.kernel.org, lvc-project@linuxtesting.org, Dmitry Antipov Subject: [PATCH 2/2] wifi: rtlwifi: simplify _rtl8812ae_phy_get_txpower_limit() Date: Wed, 1 Nov 2023 14:35:07 +0300 Message-ID: <20231101113510.51290-2-dmantipov@yandex.ru> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231101113510.51290-1-dmantipov@yandex.ru> References: <20231101113510.51290-1-dmantipov@yandex.ru> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Since 'regulation' is a compile-time constant equal to 'TXPWR_LMT_WW', mark it as such and simplify few branches in '_rtl8812ae_phy_get_txpower_limit()'. Compile tested only. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Dmitry Antipov --- .../wireless/realtek/rtlwifi/rtl8821ae/phy.c | 24 +++++++------------ 1 file changed, 8 insertions(+), 16 deletions(-) diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c index c262770fea29..27e256a82f00 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c @@ -2278,16 +2278,15 @@ static s8 _rtl8812ae_phy_get_txpower_limit(struct ieee80211_hw *hw, struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_efuse *rtlefuse = rtl_efuse(rtlpriv); struct rtl_phy *rtlphy = &rtlpriv->phy; - short band_temp = -1, regulation = -1, bandwidth_temp = -1, - rate_section = -1, channel_temp = -1; - u16 regu, bdwidth, sec, chnl; + short band_temp = -1, bandwidth_temp = -1, + rate_section = -1, channel_temp = -1; + u16 bdwidth, sec, chnl; s8 power_limit = MAX_POWER_INDEX; + const short regulation = TXPWR_LMT_WW; if (rtlefuse->eeprom_regulatory == 2) return MAX_POWER_INDEX; - regulation = TXPWR_LMT_WW; - if (band == BAND_ON_2_4G) band_temp = 0; else if (band == BAND_ON_5G) @@ -2393,8 +2392,8 @@ static s8 _rtl8812ae_phy_get_txpower_limit(struct ieee80211_hw *hw, ;/* BAND_ON_BOTH don't care temporarily */ } - if (band_temp == -1 || regulation == -1 || bandwidth_temp == -1 || - rate_section == -1 || channel_temp == -1) { + if (band_temp == -1 || bandwidth_temp == -1 || + rate_section == -1 || channel_temp == -1) { rtl_dbg(rtlpriv, COMP_POWER, DBG_LOUD, "Wrong index value to access power limit table [band %d][regulation %d][bandwidth %d][rf_path %d][rate_section %d][chnl %d]\n", band_temp, regulation, bandwidth_temp, rf_path, @@ -2402,7 +2401,6 @@ static s8 _rtl8812ae_phy_get_txpower_limit(struct ieee80211_hw *hw, return MAX_POWER_INDEX; } - regu = regulation; bdwidth = bandwidth_temp; sec = rate_section; chnl = channel_temp; @@ -2415,10 +2413,7 @@ static s8 _rtl8812ae_phy_get_txpower_limit(struct ieee80211_hw *hw, limits[i] = rtlphy->txpwr_limit_2_4g[i][bdwidth] [sec][chnl][rf_path]; - power_limit = (regulation == TXPWR_LMT_WW) ? - _rtl8812ae_phy_get_world_wide_limit(limits) : - rtlphy->txpwr_limit_2_4g[regu][bdwidth] - [sec][chnl][rf_path]; + power_limit = _rtl8812ae_phy_get_world_wide_limit(limits); } else if (band == BAND_ON_5G) { s8 limits[10] = {0}; u8 i; @@ -2427,10 +2422,7 @@ static s8 _rtl8812ae_phy_get_txpower_limit(struct ieee80211_hw *hw, limits[i] = rtlphy->txpwr_limit_5g[i][bdwidth] [sec][chnl][rf_path]; - power_limit = (regulation == TXPWR_LMT_WW) ? - _rtl8812ae_phy_get_world_wide_limit(limits) : - rtlphy->txpwr_limit_5g[regu][chnl] - [sec][chnl][rf_path]; + power_limit = _rtl8812ae_phy_get_world_wide_limit(limits); } else { rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD, "No power limit table of the specified band\n");