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Diffstat (limited to 'arch/arm/mm/dma-mapping-nommu.c')
-rw-r--r--arch/arm/mm/dma-mapping-nommu.c30
1 files changed, 4 insertions, 26 deletions
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index f304b10e23a4..52b82559d99b 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Based on linux/arch/arm/mm/dma-mapping.c
*
* Copyright (C) 2000-2004 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
*/
#include <linux/export.h>
@@ -39,18 +35,7 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
unsigned long attrs)
{
- void *ret;
-
- /*
- * Try generic allocator first if we are advertised that
- * consistency is not required.
- */
-
- if (attrs & DMA_ATTR_NON_CONSISTENT)
- return dma_direct_alloc_pages(dev, size, dma_handle, gfp,
- attrs);
-
- ret = dma_alloc_from_global_coherent(size, dma_handle);
+ void *ret = dma_alloc_from_global_coherent(size, dma_handle);
/*
* dma_alloc_from_global_coherent() may fail because:
@@ -70,16 +55,9 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_addr,
unsigned long attrs)
{
- if (attrs & DMA_ATTR_NON_CONSISTENT) {
- dma_direct_free_pages(dev, size, cpu_addr, dma_addr, attrs);
- } else {
- int ret = dma_release_from_global_coherent(get_order(size),
- cpu_addr);
-
- WARN_ON_ONCE(ret == 0);
- }
+ int ret = dma_release_from_global_coherent(get_order(size), cpu_addr);
- return;
+ WARN_ON_ONCE(ret == 0);
}
static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,