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 smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 9CC4AC4332F for ; Mon, 28 Mar 2022 09:57:48 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 0AE6F40591; Mon, 28 Mar 2022 09:57:48 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4Os0i0AsX7VS; Mon, 28 Mar 2022 09:57:47 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp4.osuosl.org (Postfix) with ESMTPS id DB17B4054A; Mon, 28 Mar 2022 09:57:46 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id B25B8C001D; Mon, 28 Mar 2022 09:57:46 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 565F4C0012 for ; Mon, 28 Mar 2022 09:57:45 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 44A5440554 for ; Mon, 28 Mar 2022 09:57:45 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5NkjPjLEsyR9 for ; Mon, 28 Mar 2022 09:57:44 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by smtp4.osuosl.org (Postfix) with ESMTPS id 9BA0C40448 for ; Mon, 28 Mar 2022 09:57:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: Content-Type:References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=zDjy6QdYMZfzrDBM8z3vmKyXyiyg4NDUsUB16DZQfq4=; t=1648461464; x=1649671064; b=UH6b4NIvopRVAzMa3bCp21YnfgYRvz2wKKPlyNtOm/5l7Bx zidQmCp78kWhq94JmnVBI4Sjp6hftur7hpIxHYsyfot3b240KdM+iIJnJR2yfvzumMWj4tTQT551K tT7Uxyzq/GxMKif6riOAe9s1pJV1ZEL0hLA4ewpRwWP8x99T1GPTK4JEpw+KB5FbRAv/XT4BR+Eh0 sQlsS4TIoJ+FIo35KVxww8Ur2b4T4XSOxFbk+T2DirF2EPh7w4DQUfgMUivjYUd8Z/ULRi8ykQCkN uY/+VEnymDcNX6av1ziQYFxMIZ2NmjBYbQWUhRpx586dwvvL0sb2pTaKWWw4KwKA==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.95) (envelope-from ) id 1nYm7v-001X9R-7G; Mon, 28 Mar 2022 11:57:31 +0200 Message-ID: Subject: Re: [REGRESSION] Recent swiotlb DMA_FROM_DEVICE fixes break ath9k-based AP From: Johannes Berg To: Halil Pasic Date: Mon, 28 Mar 2022 11:57:30 +0200 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> <298f4f9ccad7c3308d3a1fd8b4b4740571305204.camel@sipsolutions.net> <20220327051502.63fde20a.pasic@linux.ibm.com> User-Agent: Evolution 3.42.4 (3.42.4-1.fc35) MIME-Version: 1.0 X-malware-bazaar: not-scanned Cc: Toke =?ISO-8859-1?Q?H=F8iland-J=F8rgensen?= , Greg Kroah-Hartman , Robin Murphy , Kalle Valo , linux-wireless , Oleksandr Natalenko , stable , "David S. Miller" , iommu , Olha Cherevyk , Jakub Kicinski , Maxime Bizon , Netdev , Paolo Abeni , Linus Torvalds , 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Mon, 2022-03-28 at 11:50 +0200, Johannes Berg wrote: > No I worded that badly - the direction isn't useless, but thinking of it > in terms of a buffer property rather than data movement is inaccurate. > So then if we need something else to indicate how data was expected to > be moved, the direction argument becomes useless, since it's not a > buffer property but rather a temporal thing on a specific place that > expected certain data movement. > Yeah, umm. I should've read the whole thread of the weekend first, sorry for the noise. johannes _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu