From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3B7EF39251 for ; Wed, 7 Jun 2023 20:20:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B0196C4339B; Wed, 7 Jun 2023 20:20:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1686169227; bh=pQ/5k1AQ+zLaXa874EIKPhb50W9/u7lSf26AGbJiuDw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QbytxvJpAACsYAZhNrCr6xDHrdD/eic1CX1on0VvPC0//iM77HyJqjce02KZWq3Mh ILVkXQASpO5xGyC8+ZViNhW5cNLIcwvVsXYTuewr2uL4u33kJvpzOWSpZsA1nw6TTr 2lCR/NWPPNrMd948dmhGdvpx77qVX6TntwJXlsmk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ping-Ke Shih , Kalle Valo Subject: [PATCH 4.14 61/61] wifi: rtlwifi: 8192de: correct checking of IQK reload Date: Wed, 7 Jun 2023 22:16:15 +0200 Message-ID: <20230607200856.233687007@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230607200835.310274198@linuxfoundation.org> References: <20230607200835.310274198@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Ping-Ke Shih commit 93fbc1ebd978cf408ef5765e9c1630fce9a8621b upstream. Since IQK could spend time, we make a cache of IQK result matrix that looks like iqk_matrix[channel_idx].val[x][y], and we can reload the matrix if we have made a cache. To determine a cache is made, we check iqk_matrix[channel_idx].val[0][0]. The initial commit 7274a8c22980 ("rtlwifi: rtl8192de: Merge phy routines") make a mistake that checks incorrect iqk_matrix[channel_idx].val[0] that is always true, and this mistake is found by commit ee3db469dd31 ("wifi: rtlwifi: remove always-true condition pointed out by GCC 12"), so I recall the vendor driver to find fix and apply the correctness. Fixes: 7274a8c22980 ("rtlwifi: rtl8192de: Merge phy routines") Signed-off-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220801113345.42016-1-pkshih@realtek.com Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c @@ -2414,11 +2414,10 @@ void rtl92d_phy_reload_iqk_setting(struc RT_TRACE(rtlpriv, COMP_SCAN, DBG_LOUD, "Just Read IQK Matrix reg for channel:%d....\n", channel); - _rtl92d_phy_patha_fill_iqk_matrix(hw, true, - rtlphy->iqk_matrix[ - indexforchannel].value, 0, - (rtlphy->iqk_matrix[ - indexforchannel].value[0][2] == 0)); + if (rtlphy->iqk_matrix[indexforchannel].value[0][0] != 0) + _rtl92d_phy_patha_fill_iqk_matrix(hw, true, + rtlphy->iqk_matrix[indexforchannel].value, 0, + rtlphy->iqk_matrix[indexforchannel].value[0][2] == 0); if (IS_92D_SINGLEPHY(rtlhal->version)) { if ((rtlphy->iqk_matrix[ indexforchannel].value[0][4] != 0)