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 52A04D185CC for ; Thu, 8 Jan 2026 10:56:40 +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=B0RfDaoWZJygaq2CrGfYewmBk+fUp0xrVuy5WBQDboA=; b=kk2adak6TjCsMA5eGu/LjuDGPU VJzPqA+BQvwDMjmAR+gVh8pVBAt5H3usC0BH8W3WF9H+bFLzx8J00Q4yv7uJh2/WM2qKBNQefQ/9+ Kq3N/vVfE8uYxKJsb6OlmToJN+P/Tbh1xb/WN7ZOzqd5yJGdaJXZ7eRr+68FhzVwc4HsjYQ97EKg1 Kl0UufnFxQousSD019RsGgYemk4iq+8Z5L2UfF5YLQdcdlpOGvQEVhvWproCIDF2L3Hr+W4OSB7Iu 52E/vMTiPa5p9IOcwbBdJxT826k5Y0oS48aH+/T2XUhUzQofh0VP4vzuq6w2WecXi9eO2BA4RweAo NnnXYDhw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdngx-0000000GkNN-3lDZ; Thu, 08 Jan 2026 10:56:35 +0000 Received: from mgamail.intel.com ([198.175.65.13]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdngr-0000000GkHx-44aO; Thu, 08 Jan 2026 10:56:31 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1767869790; x=1799405790; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QsLTBFLRSsqzKbhE6ZxuHj1l34g02g1XFbZdK2cy1fs=; b=JKR32xNRm12RxQVndwPn9+Ur3MEGJa3o4UETqwyGsGEREd1g4ZGnjTwW KUcB519QmaMfs8FQyhCTliBqqviPm9wOrOJlhExmDnDZNG7gfOTGI8aTg 1Ue0x3fdf2BhfeCOha52xGa78E9LUvaoZsBjYDbffzjcyP2GfkRYS1WWX pSCSptBnFzyP/wTnaJpzXA6TIoOR6xpr/WDXuiRosq8ktigM2tD20IIKW XpjBBJjQB61AWMC2T05I0pCc/vW0/H4f/DFBU7fZVbSydh1ZvnsLd/PJX nkAKngmjVRaUqETdfAff1g49CdlfQS62QAJRtpEpARuahKuqn+BSHFD2i Q==; X-CSE-ConnectionGUID: gRbspansRmaJfyFJ+UinOw== X-CSE-MsgGUID: 8pR2B4mAS1KFUgTu2pj03g== X-IronPort-AV: E=McAfee;i="6800,10657,11664"; a="80354532" X-IronPort-AV: E=Sophos;i="6.21,210,1763452800"; d="scan'208";a="80354532" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jan 2026 02:56:27 -0800 X-CSE-ConnectionGUID: iy3iIMreQ6a/mDhF/dca9g== X-CSE-MsgGUID: wlX6BSnmRU22UNKliXDG6g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,210,1763452800"; d="scan'208";a="203615535" Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa009.fm.intel.com with ESMTP; 08 Jan 2026 02:56:21 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id 4FFB19E; Thu, 08 Jan 2026 11:56:20 +0100 (CET) From: Andy Shevchenko To: Bjorn Andersson , Andy Shevchenko , =?UTF-8?q?Nuno=20S=C3=A1?= , Vinod Koul , Bartosz Golaszewski , 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 , Broadcom internal kernel review list , Ray Jui , Scott Branden , Lars-Peter Clausen , Eugeniy Paltsev , Daniel Mack , Haojian Zhuang , Robert Jarzmik , Lizhi Hou , Brian Xu , Raj Kumar Rampelli , Michal Simek , Andrew Morton Subject: [PATCH v5 04/13] dmaengine: bcm2835-dma: use sg_nents_for_dma() helper Date: Thu, 8 Jan 2026 11:50:15 +0100 Message-ID: <20260108105619.3513561-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260108105619.3513561-1-andriy.shevchenko@linux.intel.com> References: <20260108105619.3513561-1-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-20260108_025630_052538_21B25491 X-CRM114-Status: GOOD ( 10.24 ) 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/bcm2835-dma.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c index 321748e2983e..3f638c3e81cd 100644 --- a/drivers/dma/bcm2835-dma.c +++ b/drivers/dma/bcm2835-dma.c @@ -260,23 +260,6 @@ static void bcm2835_dma_create_cb_set_length( control_block->info |= finalextrainfo; } -static inline size_t bcm2835_dma_count_frames_for_sg( - struct bcm2835_chan *c, - struct scatterlist *sgl, - unsigned int sg_len) -{ - size_t frames = 0; - struct scatterlist *sgent; - unsigned int i; - size_t plength = bcm2835_dma_max_frame_length(c); - - for_each_sg(sgl, sgent, sg_len, i) - frames += bcm2835_dma_frames_for_length( - sg_dma_len(sgent), plength); - - return frames; -} - /** * bcm2835_dma_create_cb_chain - create a control block and fills data in * @@ -672,7 +655,7 @@ static struct dma_async_tx_descriptor *bcm2835_dma_prep_slave_sg( } /* count frames in sg list */ - frames = bcm2835_dma_count_frames_for_sg(c, sgl, sg_len); + frames = sg_nents_for_dma(sgl, sg_len, bcm2835_dma_max_frame_length(c)); /* allocate the CB chain */ d = bcm2835_dma_create_cb_chain(chan, direction, false, -- 2.50.1