From nobody Sun Feb 8 09:30:43 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9812935970C; Thu, 8 Jan 2026 10:56:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767869808; cv=none; b=BAxxiTTL/JmYpLRCjDlmkLS0g2zt7r64CtEyTTWdDtFHkUdgZLfcWUOa8+Rmr239QNTvWBpEzSwTp/H2PHLReX3p+wrtuVll3Y7ZncuoZxClJTlR84WEBouNpUp2BNuxQbd5EMs1LnAY1ESfJxsbY/imn5N4qsT9/Oro5zAYerw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767869808; c=relaxed/simple; bh=bSFr2N381lHNrtuhF3irBWmneWRqxVrWJKWgEFfnSeo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=l3gy9GPy+MDSxz+8g4PdZdoDB617kB/66lCXTEXzIcIP/X4iBlCeBXqVZNzTNeZ6ZtZ4GrZjnFuteqbEiON7YEc8D6ceFViGBnUeGTLR+H2I0H8zoNqhvWh5rH5RkSl1Dfj7tlGWf3MpFk9jLXFshWx17AUKQUqzIE5QSVEQngM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=SNNBIyqd; arc=none smtp.client-ip=192.198.163.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="SNNBIyqd" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1767869799; x=1799405799; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bSFr2N381lHNrtuhF3irBWmneWRqxVrWJKWgEFfnSeo=; b=SNNBIyqdeH6eR4TF/5fyAjhBk1PLtlVXDVW231+9HA2Z8YHHJwWQX5+G i0bSRLHijDPP7W8GuwZoH+A2zm5zTfcFy+gkENjTNClE883YPjrjNiXlE W9G0DOugfaphqsOoqv9s+udcp2yS9WveLjNFZTpioHlcI/WIBiUb7Q1nf AUUAM+283LA/Hi/6MhfSc45idmD5APSL4qwEMGmoKh65iutSYVnWIX19a 8hGFXukrYprfe90ym7VpChG2F51d4J1T+AJnDFcMHsjzWtWJP0bOuhb6O BE0yFLwLFt8oBAEv6kqq+bdyDJGKQizHcuL3WqtxBRO4mbm7+2qVG14DD g==; X-CSE-ConnectionGUID: hNkHQKqwS42++rXlGpMZEQ== X-CSE-MsgGUID: GObycHXcTPWykhmB6ND0mA== X-IronPort-AV: E=McAfee;i="6800,10657,11664"; a="79886151" X-IronPort-AV: E=Sophos;i="6.21,210,1763452800"; d="scan'208";a="79886151" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jan 2026 02:56:33 -0800 X-CSE-ConnectionGUID: siYkkejISBWUJZwYaBuoTg== X-CSE-MsgGUID: 9QnnkmWhSxS3N43gRqAtAQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,210,1763452800"; d="scan'208";a="203091235" Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa006.fm.intel.com with ESMTP; 08 Jan 2026 02:56:27 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id 6CA77A7; 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 10/13] dmaengine: qcom: bam_dma: use sg_nents_for_dma() helper Date: Thu, 8 Jan 2026 11:50:21 +0100 Message-ID: <20260108105619.3513561-11-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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Instead of open coded variant let's use recently introduced helper. Reviewed-by: Bjorn Andersson Signed-off-by: Andy Shevchenko --- drivers/dma/qcom/bam_dma.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c index bcd8de9a9a12..e184cebbface 100644 --- a/drivers/dma/qcom/bam_dma.c +++ b/drivers/dma/qcom/bam_dma.c @@ -653,22 +653,17 @@ static struct dma_async_tx_descriptor *bam_prep_slave= _sg(struct dma_chan *chan, struct scatterlist *sg; u32 i; struct bam_desc_hw *desc; - unsigned int num_alloc =3D 0; - + unsigned int num_alloc; =20 if (!is_slave_direction(direction)) { dev_err(bdev->dev, "invalid dma direction\n"); return NULL; } =20 - /* calculate number of required entries */ - for_each_sg(sgl, sg, sg_len, i) - num_alloc +=3D DIV_ROUND_UP(sg_dma_len(sg), BAM_FIFO_SIZE); - /* allocate enough room to accommodate the number of entries */ + num_alloc =3D sg_nents_for_dma(sgl, sg_len, BAM_FIFO_SIZE); async_desc =3D kzalloc(struct_size(async_desc, desc, num_alloc), GFP_NOWAIT); - if (!async_desc) return NULL; =20 --=20 2.50.1