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 3B6B3C433EF for ; Fri, 25 Mar 2022 19:50:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231607AbiCYTvg (ORCPT ); Fri, 25 Mar 2022 15:51:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231608AbiCYTvV (ORCPT ); Fri, 25 Mar 2022 15:51:21 -0400 Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A967F16D8ED for ; Fri, 25 Mar 2022 12:35:10 -0700 (PDT) Received: by mail-ed1-x52f.google.com with SMTP id u26so10328710eda.12 for ; Fri, 25 Mar 2022 12:35:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=c98skZ0BjUMamIjtZ5imiZLVO/gl8DuHYbRwakJRogU=; b=Suev8BbZiQARkSS4t03OA365leJb0pqRURfN9ENchEyRkWs2YFj9yYWgBOyB03AwTX YhQZoZ7id1LSxPtVADVUj2io0XoJ1lCVLAHAHk2KnNq1hnonb7XuA9aYxWYlTBAgFBqO RtHXpHxhqkzfBGrkr/vstccVIywh2CCLpuHps= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=c98skZ0BjUMamIjtZ5imiZLVO/gl8DuHYbRwakJRogU=; b=nhMCczvT/7+46dXUAOcFr6LbtZ0y1HaFPvaRjV3KV3jB6nz1lGR+7KG4He48jJ161D U2HH5qijLP+CaABXlYOl9CFwHhkBdKvkz1T0O1iMaYgDAYil312/FTIE1sCDX0YQjGxJ C0tzQcD+Kap9xH7Lq94WS2KdphIfKXA0ZLypnFF5sqdyu2DbMFw1KzkaSXhXckcPoYqi B7s49zAxEQGP2QVfAzq26Rkxh5L6BstlLe4SG/zCxwWGz7RXJ4Gi7OpmEnp+77nTtYEi o9Ofoc/I8IvIGWeGorWgiQsEQWdoiwu5lEOb0+QN/M3V8Rfw0R7f8MDwf+6KhB46WNkE MXMg== X-Gm-Message-State: AOAM5322AtwU4o5odzus4nUy69Sxn5Bos2hCu43wQuA+rhxIvxPW3CaI TTEItlR8vzdRMdujBamNDU92kuLgf+dy+wZjTLU= X-Google-Smtp-Source: ABdhPJyOEdMBhZZgePfJfRGfhNakmTQ8+uNUAO6xvRQUPtsIu/RmdUH1wSt3wfAj34/atfHRKzU4ew== X-Received: by 2002:a05:6402:454:b0:416:2db7:685b with SMTP id p20-20020a056402045400b004162db7685bmr300959edw.43.1648236908309; Fri, 25 Mar 2022 12:35:08 -0700 (PDT) Received: from mail-ed1-f47.google.com (mail-ed1-f47.google.com. [209.85.208.47]) by smtp.gmail.com with ESMTPSA id m8-20020a056402510800b00419477ac093sm3250641edd.24.2022.03.25.12.35.07 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 25 Mar 2022 12:35:07 -0700 (PDT) Received: by mail-ed1-f47.google.com with SMTP id h4so2588669edr.3 for ; Fri, 25 Mar 2022 12:35:07 -0700 (PDT) X-Received: by 2002:a19:e048:0:b0:448:2caa:7ed2 with SMTP id g8-20020a19e048000000b004482caa7ed2mr9229114lfj.449.1648236479896; Fri, 25 Mar 2022 12:27:59 -0700 (PDT) MIME-Version: 1.0 References: <1812355.tdWV9SEqCh@natalenko.name> <31434708dcad126a8334c99ee056dcce93e507f1.camel@freebox.fr> <12981608.uLZWGnKmhe@natalenko.name> In-Reply-To: <12981608.uLZWGnKmhe@natalenko.name> From: Linus Torvalds Date: Fri, 25 Mar 2022 12:27:43 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [REGRESSION] Recent swiotlb DMA_FROM_DEVICE fixes break ath9k-based AP To: Oleksandr Natalenko Cc: Maxime Bizon , =?UTF-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= , Robin Murphy , Christoph Hellwig , Halil Pasic , Marek Szyprowski , Kalle Valo , "David S. Miller" , Jakub Kicinski , Paolo Abeni , Olha Cherevyk , iommu , linux-wireless , Netdev , Linux Kernel Mailing List , Greg Kroah-Hartman , stable Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 25, 2022 at 12:26 PM Oleksandr Natalenko wrote: > > On p=C3=A1tek 25. b=C5=99ezna 2022 19:30:21 CET Linus Torvalds wrote: > > The reason the ath9k issue was found quickly > > is very likely *NOT* because ath9k is the only thing affected. No, > > it's because ath9k is relatively common. > > Indeed. But having a wife who complains about non-working Wi-Fi printer d= efinitely helps in finding the issue too. Well, maybe we should credit her in the eventual resolution (whatever it ends up being). Although probably not using that exact wording. Linus