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Commit b469357f authored by Russell King's avatar Russell King
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DMA-API: net: nxp/lpc_eth: use dma_coerce_mask_and_coherent() 



The code sequence:
	pldat->pdev->dev.coherent_dma_mask = 0xFFFFFFFF;
	pldat->pdev->dev.dma_mask = &pldat->pdev->dev.coherent_dma_mask;
bypasses the architectures check on the DMA mask.  It can be replaced
with dma_coerce_mask_and_coherent(), avoiding the direct initialization
of this mask.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 07f4450c

drivers/net/ethernet/nxp/lpc_eth.c

+4 −2
Original line number Original line Diff line number Diff line
@@ -1399,8 +1399,10 @@ static int lpc_eth_drv_probe(struct platform_device *pdev) 
	}

	}





	if (pldat->dma_buff_base_v == 0) {

	if (pldat->dma_buff_base_v == 0) {

		pldat->pdev->dev.coherent_dma_mask = 0xFFFFFFFF;

		ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));

		pldat->pdev->dev.dma_mask = &pldat->pdev->dev.coherent_dma_mask;

		if (ret)

			goto err_out_free_irq;



		pldat->dma_buff_size = PAGE_ALIGN(pldat->dma_buff_size);

		pldat->dma_buff_size = PAGE_ALIGN(pldat->dma_buff_size);





		/* Allocate a chunk of memory for the DMA ethernet buffers

		/* Allocate a chunk of memory for the DMA ethernet buffers