linux-kernel - [RFT net-next 1/2] stmmac: use build

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210805171101.13776-2-mcroce@linux.microsoft.com>
Date:   Thu,  5 Aug 2021 19:11:00 +0200
From:   Matteo Croce <mcroce@...ux.microsoft.com>
To:     netdev@...r.kernel.org
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [RFT net-next 1/2] stmmac: use build_skb()

From: Matteo Croce <mcroce@...rosoft.com>

Signed-off-by: Matteo Croce <mcroce@...rosoft.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index a2aa75cb184e..30a0d915cd4b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -5208,7 +5208,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
 			/* XDP program may expand or reduce tail */
 			buf1_len = xdp.data_end - xdp.data;
 
-			skb = napi_alloc_skb(&ch->rx_napi, buf1_len);
+			skb = build_skb(xdp.data_hard_start, PAGE_SIZE);
 			if (!skb) {
 				priv->dev->stats.rx_dropped++;
 				count++;
@@ -5216,11 +5216,10 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
 			}
 
 			/* XDP program may adjust header */
-			skb_copy_to_linear_data(skb, xdp.data, buf1_len);
+			skb_reserve(skb, buf->page_offset);
 			skb_put(skb, buf1_len);
 
-			/* Data payload copied into SKB, page ready for recycle */
-			page_pool_recycle_direct(rx_q->page_pool, buf->page);
+			page_pool_release_page(rx_q->page_pool, buf->page);
 			buf->page = NULL;
 		} else if (buf1_len) {
 			dma_sync_single_for_cpu(priv->device, buf->addr,
-- 
2.31.1