Commit d8bf56a0 authored by Byungchul Park's avatar Byungchul Park Committed by Jakub Kicinski
Browse files

page_pool: make page_pool_get_dma_addr() just wrap page_pool_get_dma_addr_netmem() 



The page pool members in struct page cannot be removed unless it's not
allowed to access any of them via struct page.

Do not access 'page->dma_addr' directly in page_pool_get_dma_addr() but
just wrap page_pool_get_dma_addr_netmem() safely.

Signed-off-by: default avatarByungchul Park <byungchul@sk.com>
Reviewed-by: default avatarMina Almasry <almasrymina@google.com>
Reviewed-by: default avatarIlias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: default avatarToke Høiland-Jørgensen <toke@redhat.com>
Reviewed-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Acked-by: default avatarJesper Dangaard Brouer <hawk@kernel.org>
Link: https://patch.msgid.link/20250702053256.4594-6-byungchul@sk.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 4369d40d

include/net/page_pool/helpers.h

+1 −6
Original line number Diff line number Diff line
@@ -444,12 +444,7 @@ static inline dma_addr_t page_pool_get_dma_addr_netmem(netmem_ref netmem) 
 */

static inline dma_addr_t page_pool_get_dma_addr(const struct page *page)

{

	dma_addr_t ret = page->dma_addr;



	if (PAGE_POOL_32BIT_ARCH_WITH_64BIT_DMA)

		ret <<= PAGE_SHIFT;



	return ret;

	return page_pool_get_dma_addr_netmem(page_to_netmem(page));

}



static inline void __page_pool_dma_sync_for_cpu(const struct page_pool *pool,