From patchwork Wed Dec 14 23:52:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 13073773 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 3627BC4167B for ; Wed, 14 Dec 2022 23:53:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229827AbiLNXx0 (ORCPT ); Wed, 14 Dec 2022 18:53:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229696AbiLNXxN (ORCPT ); Wed, 14 Dec 2022 18:53:13 -0500 Received: from post.baikalelectronics.com (post.baikalelectronics.com [213.79.110.86]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 4101048754; Wed, 14 Dec 2022 15:53:09 -0800 (PST) Received: from post.baikalelectronics.com (localhost.localdomain [127.0.0.1]) by post.baikalelectronics.com (Proxmox) with ESMTP id 623E3E0ED5; Thu, 15 Dec 2022 02:53:08 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= baikalelectronics.ru; h=cc:cc:content-transfer-encoding :content-type:content-type:date:from:from:in-reply-to:message-id :mime-version:references:reply-to:subject:subject:to:to; s=post; bh=h43jggFkHbpSKEdtfUv/QU5I7Y2qMI4tAlStsWepeHc=; b=Hak2QjM5p12G bQRIn79KDGfOTZbcMa1FPqsPEn7r9/r7G0j6SziqGyTOxgtApx236cfhWb6E1DcC YEXcW1Q6G0FAFcWJ76sS6JPVANYOfRRbqMDn8Sz1kVkMH2u7vKPdWGhD1kiIddSc gsQqHYdYPGboN4EYPvH/Yh7hbYt3YeQ= Received: from mail.baikal.int (mail.baikal.int [192.168.51.25]) by post.baikalelectronics.com (Proxmox) with ESMTP id 519F3E0E6B; Thu, 15 Dec 2022 02:53:08 +0300 (MSK) Received: from localhost (10.8.30.6) by mail (192.168.51.25) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 15 Dec 2022 02:53:08 +0300 From: Serge Semin To: Gustavo Pimentel , Vinod Koul , Rob Herring , Bjorn Helgaas , Lorenzo Pieralisi , Cai Huoqing , Robin Murphy , Jingoo Han , Frank Li , Manivannan Sadhasivam CC: Serge Semin , Serge Semin , Alexey Malahov , Pavel Parkhomenko , =?utf-8?q?Krzys?= =?utf-8?q?ztof_Wilczy=C5=84ski?= , caihuoqing , Yoshihiro Shimoda , , , Subject: [PATCH v7 01/25] dmaengine: Fix dma_slave_config.dst_addr description Date: Thu, 15 Dec 2022 02:52:41 +0300 Message-ID: <20221214235305.31744-2-Sergey.Semin@baikalelectronics.ru> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221214235305.31744-1-Sergey.Semin@baikalelectronics.ru> References: <20221214235305.31744-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-Originating-IP: [10.8.30.6] X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Most likely due to a copy-paste mistake the dst_addr member of the dma_slave_config structure has been marked as ignored if the !source! address belong to the memory. That is relevant to the src_addr field of the structure while the dst_addr field as containing a destination device address is supposed to be ignored if the destination is the CPU memory. Let's fix the field description accordingly. Signed-off-by: Serge Semin Reviewed-by: Manivannan Sadhasivam Tested-by: Manivannan Sadhasivam Acked-by: Vinod Koul --- include/linux/dmaengine.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index c923f4e60f24..0c020682d894 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -394,7 +394,7 @@ enum dma_slave_buswidth { * should be read (RX), if the source is memory this argument is * ignored. * @dst_addr: this is the physical address where DMA slave data - * should be written (TX), if the source is memory this argument + * should be written (TX), if the destination is memory this argument * is ignored. * @src_addr_width: this is the width in bytes of the source (RX) * register where DMA data shall be read. If the source