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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 F24C9CFD313 for ; Mon, 24 Nov 2025 12:12:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=tqsAGmvrT+RP/IY99VEMwYi0/a49IR5aMlu9+7wZVXg=; b=DFCyQnt2CtXtXQCdI/A/lp/lio jn1UhqVOhOQ5cxmCYklekunRvtluzTqXQGQk/MAms1T6wpMBMtMduMweTrd/QCkRJQkn5GoEu4HkR deCjetUowt82le1c2MUOpiqkLTillDLihnClVou5DzhH47aKMW+BdhOzYJZs1+OZ/+qvOq8MlAx8y XR7hLlyWzT/+s6MQh/YuQZD2W2wkbceUvnkAj65fu7nV+jAkW79a1bdAS0B566hhKdyRyhm5uFpn/ fWY/lOVYbbaazsgqKCA1evPOb0JzTAOvQ0G1cJn8ar01t+wBjAoyDqLg4yLnmZff3XP/n+c/IC7rw 7TorvUJQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vNVQz-0000000Bcld-3pIz; Mon, 24 Nov 2025 12:12:45 +0000 Received: from mgamail.intel.com ([192.198.163.12]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vNVQW-0000000BcS9-43np; Mon, 24 Nov 2025 12:12:18 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1763986337; x=1795522337; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Z4cy+2HbiLCLWtcSsLcUwBV59DreBfM5HrektthG6GQ=; b=ZqCm95SQ2DjVXZsq6yHRIXZSeRr1JGJQ/qOFQ1acxhZ+Qd6XtSz3zBkr GsySKL7R+eo7Cr8hOyokGwe/Itxm5JVMPPNNfbOECFki2a1ojfO3BE2fD Y+TmK0O8f+WrHQYh84Fo/HLt93fyfNQUg4siCKK2n0BmTPcy4hGX1OHES 8WsdFIm/f9E6UMLMSlHQpRafvxXnZTfzx+9lK2DkFanIhdCE7dce8GnoB GKXdY0O8ZCYQf8ep52P8vMPMGxslW15BuXFIasXVosgp4y0d4bjWPNoZj XrgcuNHu5xENYUDr1kx/SMlYABOZ/xInRUzPNpwMzFh3iKFGgsnnwwc7s w==; X-CSE-ConnectionGUID: wVMZKqLOS7m3yFWFtXgLPw== X-CSE-MsgGUID: JrJF3Yy5SuWFWkizkjG1qA== X-IronPort-AV: E=McAfee;i="6800,10657,11622"; a="69847609" X-IronPort-AV: E=Sophos;i="6.20,222,1758610800"; d="scan'208";a="69847609" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Nov 2025 04:12:16 -0800 X-CSE-ConnectionGUID: u8eTMZfQRgaZ40Qo2k195g== X-CSE-MsgGUID: 39ttMucESuq1ncwuVM0izw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.20,222,1758610800"; d="scan'208";a="222970344" Received: from black.igk.intel.com ([10.91.253.5]) by orviesa002.jf.intel.com with ESMTP; 24 Nov 2025 04:12:10 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id 6560CA7; Mon, 24 Nov 2025 13:12:03 +0100 (CET) From: Andy Shevchenko To: Bjorn Andersson , Andy Shevchenko , Stefan Wahren , Vinod Koul , Thomas Andreatta , Caleb Sander Mateos , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org Cc: Olivier Dautricourt , Stefan Roese , Florian Fainelli , Ray Jui , Scott Branden , Broadcom internal kernel review list , Lars-Peter Clausen , Eugeniy Paltsev , Daniel Mack , Haojian Zhuang , Robert Jarzmik , Lizhi Hou , Brian Xu , Raj Kumar Rampelli , Michal Simek , Andrew Morton Subject: [PATCH v4 07/13] dmaengine: lgm: use sg_nents_for_dma() helper Date: Mon, 24 Nov 2025 13:09:25 +0100 Message-ID: <20251124121202.424072-8-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251124121202.424072-1-andriy.shevchenko@linux.intel.com> References: <20251124121202.424072-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251124_041217_021367_43F70F70 X-CRM114-Status: UNSURE ( 9.78 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Instead of open coded variant let's use recently introduced helper. Reviewed-by: Bjorn Andersson Signed-off-by: Andy Shevchenko --- drivers/dma/lgm/lgm-dma.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/dma/lgm/lgm-dma.c b/drivers/dma/lgm/lgm-dma.c index 8173c3f1075a..a7b9cf30f6ad 100644 --- a/drivers/dma/lgm/lgm-dma.c +++ b/drivers/dma/lgm/lgm-dma.c @@ -1164,8 +1164,8 @@ ldma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, struct dw2_desc *hw_ds; struct dw2_desc_sw *ds; struct scatterlist *sg; - int num = sglen, i; dma_addr_t addr; + int num, i; if (!sgl) return NULL; @@ -1173,12 +1173,7 @@ ldma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, if (d->ver > DMA_VER22) return ldma_chan_desc_cfg(chan, sgl->dma_address, sglen); - for_each_sg(sgl, sg, sglen, i) { - avail = sg_dma_len(sg); - if (avail > DMA_MAX_SIZE) - num += DIV_ROUND_UP(avail, DMA_MAX_SIZE) - 1; - } - + num = sg_nents_for_dma(sgl, sglen, DMA_MAX_SIZE); ds = dma_alloc_desc_resource(num, c); if (!ds) return NULL; -- 2.50.1