davidlt/kernel-ark
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ARM: 8699/1: dma-mapping: Remove init_dma_coherent_pool_size()

Browse Source 
There are no users of init_dma_coherent_pool_size() left due to
387870f ("mm: dmapool: use provided gfp flags for all
dma_alloc_coherent() calls"), so remove it.

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Vladimir Murzin 2017-09-25 10:31:15 +01:00 committed by Russell King
parent b337e1c40d
commit 0f7c4c15a3
2 changed files with 0 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm/include/asm/dma-mapping.h
View File

@ -189,13 +189,6 @@ extern int arm_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs);
/*
* This can be called during early boot to increase the size of the atomic
* coherent DMA pool above the default value of 256KiB. It must be called
* before postcore_initcall.
*/
extern void __init init_dma_coherent_pool_size(unsigned long size);
/*
* For SA-1111, IXP425, and ADI systems the dma-mapping functions are "magic"
* and utilize bounce buffers as needed to work around limited DMA windows.

15
arch/arm/mm/dma-mapping.c
View File

@ -393,21 +393,6 @@ static int __init early_coherent_pool(char *p)
}
early_param("coherent_pool", early_coherent_pool);
void __init init_dma_coherent_pool_size(unsigned long size)
{
/*
* Catch any attempt to set the pool size too late.
*/
BUG_ON(atomic_pool);
/*
* Set architecture specific coherent pool size only if
* it has not been changed by kernel command line parameter.
*/
if (atomic_pool_size == DEFAULT_DMA_COHERENT_POOL_SIZE)
atomic_pool_size = size;
}
/*
* Initialise the coherent pool for atomic allocations.
*/