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Commit bb005f2a authored by Ilias Apalodimas's avatar Ilias Apalodimas Committed by David S. Miller
Browse files

net: page_pool: add helper function for retrieving dma direction 



Since the dma direction is stored in page pool params, offer an API
helper for driver that choose not to keep track of it locally

Signed-off-by: default avatarIlias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5c67bf0e

include/net/page_pool.h

+9 −0
Original line number Diff line number Diff line
@@ -112,6 +112,15 @@ static inline struct page *page_pool_dev_alloc_pages(struct page_pool *pool) 
	return page_pool_alloc_pages(pool, gfp);

}



/* get the stored dma direction. A driver might decide to treat this locally and

 * avoid the extra cache line from page_pool to determine the direction

 */

static

inline enum dma_data_direction page_pool_get_dma_dir(struct page_pool *pool)

{

	return pool->p.dma_dir;

}



struct page_pool *page_pool_create(const struct page_pool_params *params);



void __page_pool_free(struct page_pool *pool);