AcoSail/kernel_optimize_test
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dma-pool: get rid of dma_in_atomic_pool()

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The function is only used once and can be simplified to a one-liner.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Nicolas Saenz Julienne 2020-07-14 14:39:26 +02:00 committed by Christoph Hellwig
parent 567f6a6eba
commit 23e469be62
1 changed files with 1 additions and 10 deletions
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11
kernel/dma/pool.c
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@ -217,15 +217,6 @@ static inline struct gen_pool *dev_to_pool(struct device *dev)
return atomic_pool_kernel;
}
static bool dma_in_atomic_pool(struct device *dev, void *start, size_t size)
{
struct gen_pool *pool = dev_to_pool(dev);
if (unlikely(!pool))
return false;
return gen_pool_has_addr(pool, (unsigned long)start, size);
}
void *dma_alloc_from_pool(struct device *dev, size_t size,
struct page **ret_page, gfp_t flags)
{
@ -260,7 +251,7 @@ bool dma_free_from_pool(struct device *dev, void *start, size_t size)
{
struct gen_pool *pool = dev_to_pool(dev);
if (!dma_in_atomic_pool(dev, start, size))
if (!pool || !gen_pool_has_addr(pool, (unsigned long)start, size))
return false;
gen_pool_free(pool, (unsigned long)start, size);
return true;