From mboxrd@z Thu Jan 1 00:00:00 1970 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 233CFC6FA86 for ; Wed, 14 Sep 2022 20:09:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229713AbiINUJG (ORCPT ); Wed, 14 Sep 2022 16:09:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229570AbiINUJD (ORCPT ); Wed, 14 Sep 2022 16:09:03 -0400 Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 062F949B45; Wed, 14 Sep 2022 13:09:03 -0700 (PDT) Received: by mail-ed1-x533.google.com with SMTP id z13so9952608edb.13; Wed, 14 Sep 2022 13:09:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:from:to :cc:subject:date; bh=SyT2bzbmyQ1V98/b547yFFsB89jvoGODy24GfzfZ40M=; b=q6EdTuWMmL+eKXk5JdLvmxCCVE9C21T6He/5BDmRjkSkj5oady2lTTqDRP2AkRgxNT KEDL2hyDA8bmoIhGBscA81i61z3gIZleS1Jpa0AgiPdULevyz71jHrHTM3NqYkzmE9Z6 PEdXtOGKJJmdY2+SnjkFwqL6DgTNFHv5S8dyGX9Na/Sp7vV0ODBvDO3TXhDVA5Zh+Cg8 OwvBId/MRC6ZYhTMEk8Dv7IoC1CuKkySfBnI8n5pbAKyM5PndVYboaSTh2anawbGv8Xu Hl6k0ODhhT6G79kpzRjRtoEiADJsuQQWx8iJr9IfxdAQFLHqUH2+6+Gpevxogq7aRgNr njZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date; bh=SyT2bzbmyQ1V98/b547yFFsB89jvoGODy24GfzfZ40M=; b=mAODwI7Du03inyLOyS2t9zq+FrBvAWgr41tdRQKryMQDtmpw9WD9zTjgvr9IHrxFNZ DInZPnJzbIB5JHDm5QLsI+OJu8AjKDKtvAIETtUtTwOfSv/t5GXiacdZHFQx88CGdd1A CF5A6mKt6GxtQDiLbQ1vDoy2FN8eM+UV9x1+Qs3Xu3/VXaJ3dxR/sc/FfyLOJcpy6P5a 6DaD60GeI32KWDyTgwyahq9zHifFooKIx+i+52PtEWjqV4rsnRzHs/+wPGqlteBOU1Ie PSi4konum8WaHBP6c6WRtBuaZlz97DUPvgnYZnElHv/CrdF+4o3MtF4rmJi4vkOpX5P4 r6jA== X-Gm-Message-State: ACgBeo3jyK1IDpNoQDoqK64OIjEWKBI0ap/FMXZ3WcUlaJEDWepU3T7j mLJ53YJjNsZqHU8njXCaOLg= X-Google-Smtp-Source: AA6agR4yHGxA0m8B3EuuNoM2peN0mqIgC801k5hbNUMV56gJyZxBnptNiAd48hQPd1EZ/FIbUdMu8w== X-Received: by 2002:a05:6402:5246:b0:452:76a7:934d with SMTP id t6-20020a056402524600b0045276a7934dmr7525498edd.137.1663186141311; Wed, 14 Sep 2022 13:09:01 -0700 (PDT) Received: from skbuf ([188.27.184.197]) by smtp.gmail.com with ESMTPSA id a13-20020a170906190d00b0073de0506745sm8026967eje.197.2022.09.14.13.08.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Sep 2022 13:09:00 -0700 (PDT) Date: Wed, 14 Sep 2022 23:08:57 +0300 From: Vladimir Oltean To: Pali =?utf-8?B?Um9ow6Fy?= Cc: Christian Marangi , Andrew Lunn , Vivien Didelot , Florian Fainelli , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Greg Kroah-Hartman , Jens Axboe , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: Regression: qca8k_sw_probe crashes (Was: Re: [net-next PATCH v5 01/14] net: dsa: qca8k: cache match data to speed up access) Message-ID: <20220914200857.fgkgflzm3nz5odwj@skbuf> References: <20220727113523.19742-1-ansuelsmth@gmail.com> <20220727113523.19742-2-ansuelsmth@gmail.com> <20220914200641.zvib2kpo2t26u6ai@pali> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20220914200641.zvib2kpo2t26u6ai@pali> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 14, 2022 at 10:06:41PM +0200, Pali Rohár wrote: > Hello! This commit is causing kernel crash on powerpc P2020 based board > with QCA8337N-AL3C switch. > So function of_device_get_match_data() takes as its argument NULL > pointer as 'priv' structure is at this stage zeroed, and which cause > above kernel crash. priv->dev is filled lines below: Thanks for the report, it was solved in 'net': https://patchwork.kernel.org/project/netdevbpf/patch/20220904215319.13070-1-ansuelsmth@gmail.com/