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Subject[PATCH v2 2/4] dma-pool: Get rid of dma_in_atomic_pool()
Date
The function is only used once and can be simplified to a one-liner.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
kernel/dma/pool.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/kernel/dma/pool.c b/kernel/dma/pool.c
index 39ca26fa41b5..318035e093fb 100644
--- a/kernel/dma/pool.c
+++ b/kernel/dma/pool.c
@@ -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;
--
2.27.0
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