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dma-contiguous: remove dma_contiguous_set_default 

dma_contiguous_set_default contains a trivial assignment, and has a
single caller that is compiled if CONFIG_CMA_DMA is enabled.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2020-09-11 10:56:40 +02:00
parent 5af638931e
commit 580a0cc9c3
2 changed files with 1 additions and 8 deletions
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7
include/linux/dma-contiguous.h
View File

@ -66,11 +66,6 @@ static inline struct cma *dev_get_cma_area(struct device *dev)
return dma_contiguous_default_area;
}
static inline void dma_contiguous_set_default(struct cma *cma)
{
dma_contiguous_default_area = cma;
}
void dma_contiguous_reserve(phys_addr_t addr_limit);
int __init dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base,
@ -91,8 +86,6 @@ static inline struct cma *dev_get_cma_area(struct device *dev)
return NULL;
}
static inline void dma_contiguous_set_default(struct cma *cma) { }
static inline void dma_contiguous_reserve(phys_addr_t limit) { }
static inline int dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base,

2
kernel/dma/contiguous.c
View File

@ -407,7 +407,7 @@ static int __init rmem_cma_setup(struct reserved_mem *rmem)
dma_contiguous_early_fixup(rmem->base, rmem->size);
if (default_cma)
dma_contiguous_set_default(cma);
dma_contiguous_default_area = cma;
rmem->ops = &rmem_cma_ops;
rmem->priv = cma;