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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: [PATCH 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)
In-Reply-To: <20190201084801.10983-1-hch@lst.de>

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);
-- 
2.20.1


  parent reply	other threads:[~2019-02-01  8:50 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-01  8:47 don't pass a NULL struct device to DMA API functions Christoph Hellwig
2019-02-01  8:47 ` [PATCH 01/18] MIPS: lantiq: pass " Christoph Hellwig
2019-02-07 23:29   ` Paul Burton
2019-02-12  7:45     ` Christoph Hellwig
2019-02-12 17:41   ` Paul Burton
2019-02-01  8:47 ` [PATCH 02/18] dmaengine: imx-sdma: " Christoph Hellwig
2019-02-02 10:11   ` Vinod Koul
2019-02-02 17:21     ` Christoph Hellwig
2019-02-01  8:47 ` [PATCH 03/18] net: caif: " Christoph Hellwig
2019-02-01 13:53   ` Robin Murphy
2019-02-01 16:10     ` Christoph Hellwig
2019-02-01  8:47 ` [PATCH 04/18] au1000_eth: " Christoph Hellwig
2019-02-01  8:47 ` [PATCH 05/18] macb_main: " Christoph Hellwig
2019-02-01 13:34   ` Nicolas.Ferre
2019-02-01  8:47 ` [PATCH 06/18] lantiq_etop: " Christoph Hellwig
2019-02-01  8:47 ` [PATCH 07/18] pxa168_eth: " Christoph Hellwig
2019-02-01  8:47 ` [PATCH 08/18] moxart_ether: " Christoph Hellwig
2019-02-01  8:47 ` [PATCH 09/18] meth: " Christoph Hellwig
2019-02-01  8:47 ` Christoph Hellwig [this message]
2019-02-01 14:14   ` [PATCH 10/18] smc911x: " Robin Murphy
2019-02-01 16:11     ` Christoph Hellwig
2019-02-01  8:47 ` [PATCH 11/18] parport_ip32: " Christoph Hellwig
2019-02-01  8:47 ` [PATCH 12/18] fotg210-udc: remove a bogus dma_sync_single_for_device call Christoph Hellwig
2019-02-01 13:19   ` Felipe Balbi
2019-02-01 16:10     ` Christoph Hellwig
2019-02-11 13:12       ` Christoph Hellwig
2019-02-11 13:30         ` Felipe Balbi
2019-02-01  8:47 ` [PATCH 13/18] fotg210-udc: pass struct device to DMA API functions Christoph Hellwig
2019-02-01 13:20   ` Felipe Balbi
2019-02-01  8:47 ` [PATCH 14/18] da8xx-fb: " Christoph Hellwig
2019-02-01  8:47 ` [PATCH 15/18] gbefb: switch to managed version of the DMA allocator Christoph Hellwig
2019-02-01  8:47 ` [PATCH 16/18] pxa3xx-gcu: pass struct device to dma_mmap_coherent Christoph Hellwig
2019-02-01  8:48 ` [PATCH 17/18] ALSA: hal2: pass struct device to DMA API functions Christoph Hellwig
2019-02-01 13:12   ` [alsa-devel] " Takashi Iwai
2019-02-01 16:09     ` Christoph Hellwig
2019-02-01 16:17       ` Takashi Iwai
2019-02-01  8:48 ` [PATCH 18/18] ALSA: " Christoph Hellwig
2019-02-01 13:13   ` [alsa-devel] " Takashi Iwai
2019-02-01 13:16 ` [alsa-devel] don't pass a NULL " Takashi Iwai
2019-02-01 16:09   ` Christoph Hellwig
2019-02-01 16:18     ` Takashi Iwai

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