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net: page_pool: add helper function to retrieve dma addresses

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On a previous patch dma addr was stored in 'struct page'.
Use that to retrieve DMA addresses used by network drivers

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ilias Apalodimas 2019-06-18 15:05:12 +02:00 committed by David S. Miller
parent 9371a56f71
commit 0afdeeed08
1 changed files with 5 additions and 0 deletions
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5
include/net/page_pool.h
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@ -132,6 +132,11 @@ static inline void page_pool_recycle_direct(struct page_pool *pool,
__page_pool_put_page(pool, page, true);
}
static inline dma_addr_t page_pool_get_dma_addr(struct page *page)
{
return page->dma_addr;
}
static inline bool is_page_pool_compiled_in(void)
{
#ifdef CONFIG_PAGE_POOL