From nobody Wed Feb 11 16:48:42 2026 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 82204C77B61 for ; Mon, 10 Apr 2023 08:50:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229771AbjDJIui (ORCPT ); Mon, 10 Apr 2023 04:50:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230401AbjDJIuX (ORCPT ); Mon, 10 Apr 2023 04:50:23 -0400 Received: from mail-pf1-x42d.google.com (mail-pf1-x42d.google.com [IPv6:2607:f8b0:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A75BD559F for ; Mon, 10 Apr 2023 01:49:55 -0700 (PDT) Received: by mail-pf1-x42d.google.com with SMTP id d2e1a72fcca58-62e102cadc7so669227b3a.2 for ; Mon, 10 Apr 2023 01:49:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1681116584; x=1683708584; h=content-disposition:mime-version:message-id:subject:cc:to:from:date :from:to:cc:subject:date:message-id:reply-to; bh=umDFBP5ADUurtK4IUTyxudUc2wuZVQg0JpEeV/qBi+I=; b=SHQYCqhum56VvZP3Q/lMEy7r75JNq87Dzq4OLQ4tUD0syNI3nflS2QTSo6BfR6D3qa syizqdVpso38tqGHxu9FncfyEmjxT/aV4jn04j50v66DBIGWfwzcA1mg24CNHo7Zoyzr ujw19hEwTDkBcRsFgO1aVjq8yfZpkoldX2NWQ8Hi6u5cLRGKryGzp8Fxs61BAuRNWNYJ TrfPChTLAaG7EcS1ybB4/HIrEChUtqDRvC4/H91+38cPBwCUT6VKrn3hArRuIk14yBgM hlhJex9LsPkbtYza2IvnFXcdiCzqAtK5UsxHaygaa/YAA4Sypx1x58TC3KtY407aBnem B7/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1681116584; x=1683708584; h=content-disposition:mime-version:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=umDFBP5ADUurtK4IUTyxudUc2wuZVQg0JpEeV/qBi+I=; b=bw9Cg33LfORkdq2xbfRoZHUseg2nHcTJ77wROcy9/uvSSRR762scRlFamBd2iOQ9UQ k8e4wBvQtY/9/vqwFGKUffeadKpqUP2EN5gh/BAM4TLlIhrQDXPteTh27XsDF2ayT62D s5xVp9ipSw28R5567chNnlHOZYJf36tZg7e4frvL8EHtOW0Gun0hqyTqta5X2TLFtWXW EQU7eW6J6UaaIT4/oo/QZyx/3tp7mDe0aPs4zly0fJX3tnPSLe1guvZGDmFwJKPo1pEw vfffgfGHj7N9LU1dDQhjwnuAWGVNq/D1URkwMoQ1H10hAqVC40kU0PszQ+4dVhzrr17w WS3g== X-Gm-Message-State: AAQBX9fQNuXDI4kN0b3dhEy3FkINBGscvt47WtgD1Hk2f3IOAbF2lOkN PrjP9NwJo70IPxVR/6QRH8Y= X-Google-Smtp-Source: AKy350YMFk+1vteUW1ylnR25fm6rXSHKvO6WhmdfPrVOV4BEibHm3vp9XTVvNtE0zuta0qNcsu+aWw== X-Received: by 2002:a62:1850:0:b0:62d:8376:3712 with SMTP id 77-20020a621850000000b0062d83763712mr6383716pfy.28.1681116584239; Mon, 10 Apr 2023 01:49:44 -0700 (PDT) Received: from Zephyrus-G14 ([103.251.210.208]) by smtp.gmail.com with ESMTPSA id l19-20020a62be13000000b006249928aba2sm7318598pff.59.2023.04.10.01.49.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Apr 2023 01:49:43 -0700 (PDT) Date: Mon, 10 Apr 2023 14:19:39 +0530 From: Yogesh Hegde To: Greg Kroah-Hartman , linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Cc: Philipp Hortmann Subject: [PATCH] staging: rtl8192e: Remove functions _rtl92e_wx_get_sens and _rtl92e_wx_set_sens Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Both of these functions depend on the function rf_set_sens, which is declar= ed but never defined. Hence calling this function will cause an oops. Because there is no definition of the function priv->rf_set_sens will alway= s be NULL. As a result _rtl92e_wx_set_sens and _rtl92e_wx_get_sens will always return = -1. Hence, * Removed function definition rf_set_sens * Removed usage of variable priv->rf_set_sens * Removed functions _rtl92e_wx_get_sens and _rtl92e_wx_set_sens * Cleaned up the variables sens and max_sens used in these functions This bug was pointed out by Philipp Hortmann[1]. [1]: https://lore.kernel.org/linux-staging/004210bd-0ed1-58d5-0315-47499c85= 0444@gmail.com/ Signed-off-by: Yogesh Hegde --- drivers/staging/rtl8192e/rtl8192e/rtl_core.h | 3 -- drivers/staging/rtl8192e/rtl8192e/rtl_wx.c | 45 -------------------- 2 files changed, 48 deletions(-) diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h b/drivers/staging= /rtl8192e/rtl8192e/rtl_core.h index 2b2d8af4cf6e..a949a3833cca 100644 --- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h @@ -234,7 +234,6 @@ struct r8192_priv { struct rt_stats stats; struct iw_statistics wstats; =20 - short (*rf_set_sens)(struct net_device *dev, short sens); u8 (*rf_set_chan)(struct net_device *dev, u8 ch); =20 struct rx_desc *rx_ring[MAX_RX_QUEUE]; @@ -274,8 +273,6 @@ struct r8192_priv { short promisc; =20 short chan; - short sens; - short max_sens; bool ps_force; =20 u32 irq_mask[2]; diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c b/drivers/staging/r= tl8192e/rtl8192e/rtl_wx.c index cb28288a618b..0bb657fda06c 100644 --- a/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c @@ -311,10 +311,6 @@ static int _rtl92e_wx_get_range(struct net_device *dev, /* ~130 Mb/s real (802.11n) */ range->throughput =3D 130 * 1000 * 1000; =20 - if (priv->rf_set_sens !=3D NULL) - /* signal level threshold range */ - range->sensitivity =3D priv->max_sens; - range->max_qual.qual =3D 100; range->max_qual.level =3D 0; range->max_qual.noise =3D 0; @@ -807,45 +803,6 @@ static int _rtl92e_wx_get_retry(struct net_device *dev, return 0; } =20 -static int _rtl92e_wx_get_sens(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, char *extra) -{ - struct r8192_priv *priv =3D rtllib_priv(dev); - - if (priv->rf_set_sens =3D=3D NULL) - return -1; /* we have not this support for this radio */ - wrqu->sens.value =3D priv->sens; - return 0; -} - -static int _rtl92e_wx_set_sens(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, char *extra) -{ - struct r8192_priv *priv =3D rtllib_priv(dev); - - short err =3D 0; - - if (priv->hw_radio_off) - return 0; - - mutex_lock(&priv->wx_mutex); - if (priv->rf_set_sens =3D=3D NULL) { - err =3D -1; /* we have not this support for this radio */ - goto exit; - } - if (priv->rf_set_sens(dev, wrqu->sens.value) =3D=3D 0) - priv->sens =3D wrqu->sens.value; - else - err =3D -EINVAL; - -exit: - mutex_unlock(&priv->wx_mutex); - - return err; -} - static int _rtl92e_wx_set_encode_ext(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) @@ -1066,8 +1023,6 @@ static iw_handler r8192_wx_handlers[] =3D { [IW_IOCTL(SIOCGIWFREQ)] =3D _rtl92e_wx_get_freq, [IW_IOCTL(SIOCSIWMODE)] =3D _rtl92e_wx_set_mode, [IW_IOCTL(SIOCGIWMODE)] =3D _rtl92e_wx_get_mode, - [IW_IOCTL(SIOCSIWSENS)] =3D _rtl92e_wx_set_sens, - [IW_IOCTL(SIOCGIWSENS)] =3D _rtl92e_wx_get_sens, [IW_IOCTL(SIOCGIWRANGE)] =3D _rtl92e_wx_get_range, [IW_IOCTL(SIOCSIWAP)] =3D _rtl92e_wx_set_wap, [IW_IOCTL(SIOCGIWAP)] =3D _rtl92e_wx_get_wap, --=20 2.34.1