DMA Engine development
 help / color / mirror / Atom feed
From: Christoph Hellwig <hch@lst.de>
To: John Crispin <john@phrozen.org>, Vinod Koul <vkoul@kernel.org>,
	Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>,
	Nicolas Ferre <nicolas.ferre@microchip.com>,
	Sudip Mukherjee <sudipm.mukherjee@gmail.com>,
	Felipe Balbi <balbi@kernel.org>,
	linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
	dmaengine@vger.kernel.org, netdev@vger.kernel.org,
	linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org,
	alsa-devel@alsa-project.org
Cc: iommu@lists.linux-foundation.org
Subject: [10/18] smc911x: pass struct device to DMA API functions
Date: Fri,  1 Feb 2019 09:47:53 +0100	[thread overview]
Message-ID: <20190201084801.10983-11-hch@lst.de> (raw)

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.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/net/ethernet/smsc/smc911x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index 8355dfbb8ec3..b550e624500d 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -1188,7 +1188,7 @@ smc911x_tx_dma_irq(void *data)
 
 	DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "TX DMA irq handler\n");
 	BUG_ON(skb == NULL);
-	dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
+	dma_unmap_single(lp->dev, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE);
 	netif_trans_update(dev);
 	dev_kfree_skb_irq(skb);
 	lp->current_tx_skb = NULL;
@@ -1219,7 +1219,7 @@ smc911x_rx_dma_irq(void *data)
 
 	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 	DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev, "RX DMA irq handler\n");
-	dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
+	dma_unmap_single(lp->dev, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
 	BUG_ON(skb == NULL);
 	lp->current_rx_skb = NULL;
 	PRINT_PKT(skb->data, skb->len);

             reply	other threads:[~2019-02-01  8:47 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-01  8:47 Christoph Hellwig [this message]
  -- strict thread matches above, loose matches on Subject: below --
2019-02-01 14:14 [10/18] smc911x: pass struct device to DMA API functions Robin Murphy
2019-02-01 16:11 Christoph Hellwig

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190201084801.10983-11-hch@lst.de \
    --to=hch@lst.de \
    --cc=alsa-devel@alsa-project.org \
    --cc=balbi@kernel.org \
    --cc=dmaengine@vger.kernel.org \
    --cc=dmitry.tarnyagin@lockless.no \
    --cc=iommu@lists.linux-foundation.org \
    --cc=john@phrozen.org \
    --cc=linux-fbdev@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mips@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=nicolas.ferre@microchip.com \
    --cc=sudipm.mukherjee@gmail.com \
    --cc=vkoul@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox