diff mbox series

[net-next,v2,01/12] net: page_pool: add helper function to retrieve dma addresses

Message ID 156086311236.27760.10158530288130730889.stgit@firesoul
State New
Headers show
Series [net-next,v2,01/12] net: page_pool: add helper function to retrieve dma addresses | expand

Commit Message

Jesper Dangaard Brouer June 18, 2019, 1:05 p.m. UTC 
From: Ilias Apalodimas <ilias.apalodimas@linaro.org>


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>

---
 include/net/page_pool.h |    5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/include/net/page_pool.h b/include/net/page_pool.h
index 694d055e01ef..b885d86cb7a1 100644
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -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