netdev - [PATCH 16/18] page_pool: make page_pool_get_dma_addr() just wrap page_pool_get_dma_addr

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Message-Id: <20250523032609.16334-17-byungchul@sk.com>
Date: Fri, 23 May 2025 12:26:07 +0900
From: Byungchul Park <byungchul@...com>
To: willy@...radead.org,
	netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
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Subject: [PATCH 16/18] 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: Byungchul Park <byungchul@...com>
Reviewed-by: Mina Almasry <almasrymina@...gle.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@...aro.org>
---
 include/net/page_pool/helpers.h | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/include/net/page_pool/helpers.h b/include/net/page_pool/helpers.h
index aa120f6d519a..bcd0c08fd5b8 100644
--- a/include/net/page_pool/helpers.h
+++ b/include/net/page_pool/helpers.h
@@ -441,12 +441,7 @@ 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,
-- 
2.17.1