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 smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A04C8C433EF for ; Fri, 25 Mar 2022 18:13:57 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 3801A400D9; Fri, 25 Mar 2022 18:13:57 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mNtwLw19XfeY; Fri, 25 Mar 2022 18:13:56 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp2.osuosl.org (Postfix) with ESMTPS id 8E89540327; Fri, 25 Mar 2022 18:13:55 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3E5EBC002C; Fri, 25 Mar 2022 18:13:55 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [IPv6:2605:bc80:3010::133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 74E23C0012 for ; Fri, 25 Mar 2022 18:13:54 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 5230140327 for ; Fri, 25 Mar 2022 18:13:54 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5fy9Y-GBX_3H for ; Fri, 25 Mar 2022 18:13:53 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from mail.toke.dk (mail.toke.dk [IPv6:2a0c:4d80:42:2001::664]) by smtp2.osuosl.org (Postfix) with ESMTPS id C861F400D9 for ; Fri, 25 Mar 2022 18:13:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=toke.dk; s=20161023; t=1648232029; bh=2/6Vw2ASBAiN11k5yojKv5+vCVhPImMu3UVtt56378s=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=u6q8TNoDqnTn5TUskazRYnwgeG+FCVCycn+e4KdE8c61ipZ71vDDXvjHlHXaTSufc /7zUjA3cna3B1x8HpC7xOnRsqbkf3oxSIjhlvc2TBhwwVaooYqMMVK90FuenhMHD/2 QS79/isfJKz7ViC1uu+Wdx+J3znSWRwUjvnqrUahIJiVwHX51aJj1/gj9kScR5ZAJe SUnOve0P5jpqAuBha431w1dhO5VMokHhVBKZvf300guwM7zTQJRRqrDCikWFvCLTNy weUjZRns/h9tE3SQyZ1YXoNzvSRKC+ij1BEfuTN4pybtBu+xQp3jtpNx0kJHo92MC0 9CDkrzVDsS39Q== To: Robin Murphy , mbizon@freebox.fr, Linus Torvalds Subject: Re: [REGRESSION] Recent swiotlb DMA_FROM_DEVICE fixes break ath9k-based AP In-Reply-To: References: <1812355.tdWV9SEqCh@natalenko.name> <20220324055732.GB12078@lst.de> <4386660.LvFx2qVVIh@natalenko.name> <81ffc753-72aa-6327-b87b-3f11915f2549@arm.com> <878rsza0ih.fsf@toke.dk> <4be26f5d8725cdb016c6fdd9d05cfeb69cdd9e09.camel@freebox.fr> <20220324163132.GB26098@lst.de> <871qyr9t4e.fsf@toke.dk> <31434708dcad126a8334c99ee056dcce93e507f1.camel@freebox.fr> <87a6de80em.fsf@toke.dk> Date: Fri, 25 Mar 2022 19:13:49 +0100 X-Clacks-Overhead: GNU Terry Pratchett Message-ID: <871qyp99ya.fsf@toke.dk> MIME-Version: 1.0 Cc: Netdev , Kalle Valo , linux-wireless , Oleksandr Natalenko , stable , "David S. Miller" , Halil Pasic , iommu , Olha Cherevyk , Greg Kroah-Hartman , Jakub Kicinski , Paolo Abeni , Christoph Hellwig , Linux Kernel Mailing List X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= via iommu Reply-To: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Um9iaW4gTXVycGh5IDxyb2Jpbi5tdXJwaHlAYXJtLmNvbT4gd3JpdGVzOgoKPiBPbiAyMDIyLTAz LTI1IDE2OjI1LCBUb2tlIEjDuGlsYW5kLUrDuHJnZW5zZW4gd3JvdGU6Cj4+IE1heGltZSBCaXpv biA8bWJpem9uQGZyZWVib3guZnI+IHdyaXRlczoKPj4gCj4+PiBPbiBUaHUsIDIwMjItMDMtMjQg YXQgMTI6MjYgLTA3MDAsIExpbnVzIFRvcnZhbGRzIHdyb3RlOgo+Pj4KPj4+Pgo+Pj4+IEl0J3Mg 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