From patchwork Mon Feb 11 13:20:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 1039799 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=infradead.org header.i=@infradead.org header.b="n3HdzLEE"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43ymdC3Xvhz9sML for ; Tue, 12 Feb 2019 00:21:03 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727882AbfBKNUZ (ORCPT ); Mon, 11 Feb 2019 08:20:25 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:57610 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727835AbfBKNUU (ORCPT ); Mon, 11 Feb 2019 08:20:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=JrHN5I49NV0qZtB9rpJexCxtdUcm7mEw+htvncP4Mps=; b=n3HdzLEE9i4e3eZraceASrgrxO W3vo1Ni2bgpmjwW1XXF3KNg0gON8SgbzmpbnPxBjy30nxPWhyUdioR03ve7z6xF00jVMnwHd8stuN VLwkfT3Wvf2PNDZH9rSAD0/sWff1Yc/tEpKsFextTe6SLXkBABnSMtOyGFuo21idCWIb8T0xB/nl4 Sx+utbpWHWLmC6bCneyb9i+J195iRWIHR1Iex7RzYqXojRE1OxaCkwx59y3Lj6fHjkGNkugPu5Yht BjUZXnL0PXc8xCIrcBU7MKcpF82UUnu7FZtHuxW18zvF7wy/fatOjNt1gjY9UtG0UoKIrIbEx+6hL sRtdQZWw==; Received: from 089144210182.atnat0019.highway.a1.net ([89.144.210.182] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1gtBVT-0008Ra-2Y; Mon, 11 Feb 2019 13:20:19 +0000 From: Christoph Hellwig To: "David S. Miller" , netdev@vger.kernel.org Cc: Nicolas Ferre , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/8] lantiq_etop: pass struct device to DMA API functions Date: Mon, 11 Feb 2019 14:20:00 +0100 Message-Id: <20190211132004.29143-5-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190211132004.29143-1-hch@lst.de> References: <20190211132004.29143-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Note this driver seems to lack dma_unmap_* calls entirely, but fixing that is left for another time. Signed-off-by: Christoph Hellwig --- drivers/net/ethernet/lantiq_etop.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c index 32ac9045cdae..f9bb890733b5 100644 --- a/drivers/net/ethernet/lantiq_etop.c +++ b/drivers/net/ethernet/lantiq_etop.c @@ -112,10 +112,12 @@ struct ltq_etop_priv { static int ltq_etop_alloc_skb(struct ltq_etop_chan *ch) { + struct ltq_etop_priv *priv = netdev_priv(ch->netdev); + ch->skb[ch->dma.desc] = netdev_alloc_skb(ch->netdev, MAX_DMA_DATA_LEN); if (!ch->skb[ch->dma.desc]) return -ENOMEM; - ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(NULL, + ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(&priv->pdev->dev, ch->skb[ch->dma.desc]->data, MAX_DMA_DATA_LEN, DMA_FROM_DEVICE); ch->dma.desc_base[ch->dma.desc].addr = @@ -487,7 +489,7 @@ ltq_etop_tx(struct sk_buff *skb, struct net_device *dev) netif_trans_update(dev); spin_lock_irqsave(&priv->lock, flags); - desc->addr = ((unsigned int) dma_map_single(NULL, skb->data, len, + desc->addr = ((unsigned int) dma_map_single(&priv->pdev->dev, skb->data, len, DMA_TO_DEVICE)) - byte_offset; wmb(); desc->ctl = LTQ_DMA_OWN | LTQ_DMA_SOP | LTQ_DMA_EOP |