From e43e2657fe77a37b13643e2469670ecdb0ba5e10 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 21 Dec 2018 14:32:02 +0100 Subject: x86/dma: Remove the x86_dma_fallback_dev hack Now that we removed support for the NULL device argument in the DMA API, there is no need to cater for that in the x86 code. Signed-off-by: Christoph Hellwig --- kernel/dma/mapping.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'kernel/dma') diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index c000906348c9..685a53f2a793 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -238,10 +238,6 @@ u64 dma_get_required_mask(struct device *dev) } EXPORT_SYMBOL_GPL(dma_get_required_mask); -#ifndef arch_dma_alloc_attrs -#define arch_dma_alloc_attrs(dev) (true) -#endif - void *dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs) { @@ -256,9 +252,6 @@ void *dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle, /* let the implementation decide on the zone to allocate from: */ flag &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM); - if (!arch_dma_alloc_attrs(&dev)) - return NULL; - if (dma_is_direct(ops)) cpu_addr = dma_direct_alloc(dev, size, dma_handle, flag, attrs); else if (ops->alloc) -- cgit v1.2.3-55-g7522