From nobody Sun Feb 8 19:55:01 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 C6F32355811; Thu, 13 Nov 2025 15:16:18 +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=1763046980; cv=none; b=CWiLZ+HeNSB/4Aojyy5+7hfCd61olSwn7scutWkmJFNXiwAp8H8US0YOIiG+mIMUfjewyD49lZg7sZjCvAzplH4NrtoqL9BUeQL0NE2jFHFNFPYw3T0W/Wjsp0+a2jyoNnGI/vampqxqdI4TbjAJhGfVupb/Leo8btywzud1KMY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763046980; c=relaxed/simple; bh=akryAXafWhZQlfplABSdwgarfhhYIf26xngrUAauxhA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HRjzFt+W6bvDSl/LM/d35q4EEWyD6YEVG4k00ET8URG3hLjAIDBC+FkIBh4pMS7vgS33xDdLNoSCXRdaRwZTpLsFLAzRd12TLGlADqCICfOTBcoXLZZ618jbpOmAJj5+nz4pQtXzdGi1fSUB6WBI4YhWBYAbkdW1ao/Jqv8utWk= 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=hmj4mhTv; 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="hmj4mhTv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1763046979; x=1794582979; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=akryAXafWhZQlfplABSdwgarfhhYIf26xngrUAauxhA=; b=hmj4mhTvYsrfrtLt3pmQKyfAkSOpOW26kmLGH8kPSsPsUWAgax3smO7X 4AOi/R1bHR8AM+6nHOzd3VWwxUJstZ1Z+zwDkFEW6GBN9T2EGEvazRb3a 2R1hQvRsBMlry+6l6U5tEeKBo+3V8r7Z0dGAE0DC+hTMouAU/xU/33+3U 8YySKn5EyyU0Ui3EHPmFA0Q6+wgwNIe1FJWZSm+vkPvItPvu+0U8/s1hE v6S4PMHI+9hAtpBmSdIe2F32XQiHt+FBrnAhcvmMvnjp26bq8i+ByZTop fQz5ZKdA3zXtuZ7MFLO0G6F+M/xtt0tPmxGMAjcTFxE6nALoQtnbAVyu+ A==; X-CSE-ConnectionGUID: ffu8SZUaRbCr1jddN5m8mw== X-CSE-MsgGUID: LNE/x5jFR1y6tv5YQnOU0A== X-IronPort-AV: E=McAfee;i="6800,10657,11612"; a="75740543" X-IronPort-AV: E=Sophos;i="6.19,302,1754982000"; d="scan'208";a="75740543" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Nov 2025 07:16:17 -0800 X-CSE-ConnectionGUID: ciipLS86TrWoIsMCLMxgLw== X-CSE-MsgGUID: snFg2F5dRgKe8HTqX1Oxmg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,302,1754982000"; d="scan'208";a="189792123" Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa008.fm.intel.com with ESMTP; 13 Nov 2025 07:16:12 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id DE6D5A0; Thu, 13 Nov 2025 16:16:04 +0100 (CET) From: Andy Shevchenko To: Andy Shevchenko , Bjorn Andersson , 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 , 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 v3 10/13] dmaengine: qcom: bam_dma: use sg_nents_for_dma() helper Date: Thu, 13 Nov 2025 16:13:06 +0100 Message-ID: <20251113151603.3031717-11-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251113151603.3031717-1-andriy.shevchenko@linux.intel.com> References: <20251113151603.3031717-1-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 2cf060174795..62b3921f0d11 100644 --- a/drivers/dma/qcom/bam_dma.c +++ b/drivers/dma/qcom/bam_dma.c @@ -655,22 +655,17 @@ 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