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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32358C3A5A7 for ; Tue, 6 Dec 2022 08:34:37 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A19388E0002; Tue, 6 Dec 2022 03:34:36 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 9C8808E0001; Tue, 6 Dec 2022 03:34:36 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8B80F8E0002; Tue, 6 Dec 2022 03:34:36 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 7FCCE8E0001 for ; Tue, 6 Dec 2022 03:34:36 -0500 (EST) Received: from smtpin26.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 59E73140723 for ; Tue, 6 Dec 2022 08:34:36 +0000 (UTC) X-FDA: 80211220152.26.70505A2 Received: from formenos.hmeau.com (helcar.hmeau.com [216.24.177.18]) by imf13.hostedemail.com (Postfix) with ESMTP id 5A29B20002 for ; Tue, 6 Dec 2022 08:34:35 +0000 (UTC) Authentication-Results: imf13.hostedemail.com; dkim=none; spf=pass (imf13.hostedemail.com: domain of herbert@gondor.apana.org.au designates 216.24.177.18 as permitted sender) smtp.mailfrom=herbert@gondor.apana.org.au; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1670315676; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ng8Gr7mlYvuYqk0A9+CRebcMJe6K6N3Ian7UooaXvGk=; b=LDMivWtAScSo3FiqFLteFH5Uk/XRq6MnNLwR3lHDMEQ5ljXWfKLQXQKj/s/W1EjqANU5aI NZlgLEUpHD2xHfkAzigJC6lvSYX4riBip/m3DeMPqOHpCtXgPS3ohM0U2bdtkfZs+dYwJn pGrIBV9meMwXYdgteIeH6W8xFkvrXDk= ARC-Authentication-Results: i=1; imf13.hostedemail.com; dkim=none; spf=pass (imf13.hostedemail.com: domain of herbert@gondor.apana.org.au designates 216.24.177.18 as permitted sender) smtp.mailfrom=herbert@gondor.apana.org.au; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1670315676; a=rsa-sha256; cv=none; b=nTAAuFPCXXFIpwIkDiidpS7AJgDZw/xEVoBcKOk9Gmwkr6kkZKBzCD1eMEsTPrd0+UXD44 wqQn8IsFYKKnGdsO25fk8gzPWBMY49R5OqHg4xgC1Fv1rDo3Dvzgg7fIJLKn3ikERjLMCX W576IY4aGWsD5xquZScMWZJ0KmyuO3M= Received: from loth.rohan.me.apana.org.au ([192.168.167.2]) by formenos.hmeau.com with smtp (Exim 4.94.2 #2 (Debian)) id 1p2TP1-004OOs-Rt; Tue, 06 Dec 2022 16:34:12 +0800 Received: by loth.rohan.me.apana.org.au (sSMTP sendmail emulation); Tue, 06 Dec 2022 16:34:11 +0800 Date: Tue, 6 Dec 2022 16:34:11 +0800 From: Herbert Xu To: Christoph Hellwig Cc: Catalin Marinas , Ard Biesheuvel , Will Deacon , Marc Zyngier , Arnd Bergmann , Greg Kroah-Hartman , Andrew Morton , Linus Torvalds , Linux Memory Management List , Linux ARM , LinuxKernelMailingList@gondor.apana.org.au, linux-kernel@vger.kernel.org, "David S. Miller" , Linux Crypto Mailing List Subject: Re: [PATCH 0/10] crypto: Driver conversions for DMA alignment Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Stat-Signature: arjwgb94i8geutzfzoubpjajizjkrxyg X-Rspam-User: X-Spamd-Result: default: False [-3.01 / 9.00]; BAYES_HAM(-2.81)[90.94%]; R_SPF_ALLOW(-0.20)[+mx]; RCVD_NO_TLS_LAST(0.10)[]; MIME_GOOD(-0.10)[text/plain]; RCPT_COUNT_TWELVE(0.00)[15]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; ARC_SIGNED(0.00)[hostedemail.com:s=arc-20220608:i=1]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; TO_DN_SOME(0.00)[]; DMARC_NA(0.00)[apana.org.au]; ARC_NA(0.00)[] X-Rspamd-Queue-Id: 5A29B20002 X-Rspamd-Server: rspam06 X-HE-Tag: 1670315675-798043 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Dec 05, 2022 at 10:27:58PM -0800, Christoph Hellwig wrote: . > But GFP_DMA never did do anything at all about alignment. It picks > allocations from ZONE_DMA (which on x86 is the first 16MB only). Right. I'm not arguing that they are correct or anything. I'm just saying that they are currently working on arm64 because of the large minimum kmalloc alignment, and they will all be broken afterwards. Cheers, -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt