netdev - [PATCH net-next 1/3] netmem, io_uring/zcrx: access pp fields through @desc in net

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Message-Id: <20251121040047.71921-1-byungchul@sk.com>
Date: Fri, 21 Nov 2025 13:00:45 +0900
From: Byungchul Park <byungchul@...com>
To: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	kernel_team@...ynix.com,
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	io-uring@...r.kernel.org
Subject: [PATCH net-next 1/3] netmem, io_uring/zcrx: access pp fields through @desc in net_iov

Convert all the legacy code directly accessing the pp fields in net_iov
to access them through @desc in net_iov.

Signed-off-by: Byungchul Park <byungchul@...com>
---
 io_uring/zcrx.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c
index b1b723222cdb..f3ba04ce97ab 100644
--- a/io_uring/zcrx.c
+++ b/io_uring/zcrx.c
@@ -693,12 +693,12 @@ static void io_zcrx_return_niov(struct net_iov *niov)
 {
 	netmem_ref netmem = net_iov_to_netmem(niov);
 
-	if (!niov->pp) {
+	if (!niov->desc.pp) {
 		/* copy fallback allocated niovs */
 		io_zcrx_return_niov_freelist(niov);
 		return;
 	}
-	page_pool_put_unrefed_netmem(niov->pp, netmem, -1, false);
+	page_pool_put_unrefed_netmem(niov->desc.pp, netmem, -1, false);
 }
 
 static void io_zcrx_scrub(struct io_zcrx_ifq *ifq)
@@ -800,7 +800,7 @@ static void io_zcrx_ring_refill(struct page_pool *pp,
 		if (!page_pool_unref_and_test(netmem))
 			continue;
 
-		if (unlikely(niov->pp != pp)) {
+		if (unlikely(niov->desc.pp != pp)) {
 			io_zcrx_return_niov(niov);
 			continue;
 		}
@@ -1074,8 +1074,8 @@ static int io_zcrx_recv_frag(struct io_kiocb *req, struct io_zcrx_ifq *ifq,
 		return io_zcrx_copy_frag(req, ifq, frag, off, len);
 
 	niov = netmem_to_net_iov(frag->netmem);
-	if (!niov->pp || niov->pp->mp_ops != &io_uring_pp_zc_ops ||
-	    io_pp_to_ifq(niov->pp) != ifq)
+	if (!niov->desc.pp || niov->desc.pp->mp_ops != &io_uring_pp_zc_ops ||
+	    io_pp_to_ifq(niov->desc.pp) != ifq)
 		return -EFAULT;
 
 	if (!io_zcrx_queue_cqe(req, niov, ifq, off + skb_frag_off(frag), len))
-- 
2.17.1