Received: by 2002:a6b:fb09:0:0:0:0:0 with SMTP id h9csp4936758iog; Wed, 22 Jun 2022 08:38:29 -0700 (PDT) X-Google-Smtp-Source: AGRyM1v43rGGoLd5lbL9YH0G80uS9AEQfPGVCJ5Ukfv7KxXIHkXDTIPw2p6TjZF5HQs47oQKiOFP X-Received: by 2002:a17:90a:d80b:b0:1ec:9a1a:2266 with SMTP id a11-20020a17090ad80b00b001ec9a1a2266mr4328940pjv.7.1655912309377; Wed, 22 Jun 2022 08:38:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1655912309; cv=none; d=google.com; s=arc-20160816; b=TlGTAzvgPM6aQnv7L3LBYyyx8vtyXFqnM3k1HPtPVCn8MvtA1bkssL00ZTO2woRgdx yljxoFsUMhStBcR8EjPmVjBJTFIBRmDtOS9yKJEnjA3lKxKXcoofsJdT3nHxnkoMTK0U mk46X7CVIIsbzkq7zbizPDe9+QKkmPx7VBTzRqDX4R2Kf88d9JQvdDtiJ4X0EhdIgtwq Z0nz2IGlIfIk3rdgP/7tDVS2tHNQ+OfHm7oE3RHfWu3Mq5Dz9LnX8xDI8/R/swlPO/UW TvRE0CbZfHTSLqJ2p5zuOa/iLvhsxLJ5aP3ERSI4KXTMljytZG0oXX8G5pSNig0Wyl1+ At3Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=3YhsFA7CExPF6ElHas1BMiANq2AG17CeUS7+89u/954=; b=m1mSoS5xq16mwLxpx0q9tZ7ZEHIBEF20htf7YoLhDIw+LcXmOWt8jMtVGgUxVCxR0+ oaVRpJmw4+iNo7oj4pLSkapTQrwtPZ5soBqOxgYkc8L9jsBJcqC3Ey454q8HVoDbxnIv dFpIsGsE9iFyfKio8cj75fHk/7hrqUu6srVGYOxj5q4gkGSNB5UtJW4tObrEnHjtoFFn KjxT+zJUmkT9tzbihsG2CdAAeBdTI7IHNtxrro8LIq4A1kAGYDeoyW9dIDrM/BT4FMWo 5ShPYwO4SeuPJTz6ub0rBmsm9Z7Mzmg56lUDSduLpeIe+qD0ysXKpTuxaPWgXgEeUGl5 GUfA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=upm.es Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id mw15-20020a17090b4d0f00b001e684469067si24822857pjb.45.2022.06.22.08.38.15; Wed, 22 Jun 2022 08:38:29 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=upm.es Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1358056AbiFVO5M (ORCPT + 99 others); Wed, 22 Jun 2022 10:57:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56126 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358227AbiFVO5K (ORCPT ); Wed, 22 Jun 2022 10:57:10 -0400 Received: from neon-v2.ccupm.upm.es (neon-v2.ccupm.upm.es [138.100.198.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B1F43D495; Wed, 22 Jun 2022 07:57:09 -0700 (PDT) Received: from localhost (82-69-11-11.dsl.in-addr.zen.co.uk [82.69.11.11]) (user=adrianml@alumnos.upm.es mech=PLAIN bits=0) by neon-v2.ccupm.upm.es (8.15.2/8.15.2/neon-v2-001) with ESMTPSA id 25MEoQsf031852 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 22 Jun 2022 14:50:26 GMT Date: Wed, 22 Jun 2022 15:50:21 +0100 From: Adrian Larumbe To: Vinod Koul Cc: Christoph Hellwig , michal.simek@xilinx.com, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH] dmaengine: remove DMA_MEMCPY_SG once again Message-ID: <20220622145021.r42vlkmokd3eqmqe@sobremesa> References: <20220606074733.622616-1-hch@lst.de> <20220606195455.qmq3yu6mc6g4rmm2@sobremesa> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-BitDefender-Scanner: Clean, Agent: BitDefender Milter 3.1.7 on neon-v2.ccupm.upm.es, sigver: 7.92179 X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07.06.2022 09:33, Vinod Koul wrote: > There are no clients in mainline which call this API. There is a driver > which implements this API, but no users... > > $ git grep dmaengine_prep_dma_memcpy_sg > include/linux/dmaengine.h:static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_memcpy_sg( This is true, when I sent this I thought my at the time employer had already upstreamed their driver changes which make this of this API call, but apparently it never happened after I left. In this wise, this change series should probably go away altogether, even if that means it leaves that driver feature unutilised. Adrian Larumbe