netdev - [PATCH net-next] net: mvneta: remove unnecessary if condition in mvneta_xdp_submit

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-next>] [day] [month] [year] [list]

Message-Id: <d7b846d1caf1f59612eead3d8760e7a6913695ba.1643294657.git.lorenzo@kernel.org>
Date:   Thu, 27 Jan 2022 15:47:49 +0100
From:   Lorenzo Bianconi <lorenzo@...nel.org>
To:     netdev@...r.kernel.org
Cc:     lorenzo.bianconi@...hat.com, thomas.petazzoni@...tlin.com,
        davem@...emloft.net, kuba@...nel.org, dan.carpenter@...cle.com
Subject: [PATCH net-next] net: mvneta: remove unnecessary if condition in mvneta_xdp_submit_frame

Get rid of unnecessary if check on tx_desc pointer in
mvneta_xdp_submit_frame routine since num_frames is always greater than
0 and tx_desc pointer is always initialized.

Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
 drivers/net/ethernet/marvell/mvneta.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 315a43e4c63d..f1335a1ed695 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2083,7 +2083,7 @@ mvneta_xdp_submit_frame(struct mvneta_port *pp, struct mvneta_tx_queue *txq,
 {
 	struct skb_shared_info *sinfo = xdp_get_shared_info_from_frame(xdpf);
 	struct device *dev = pp->dev->dev.parent;
-	struct mvneta_tx_desc *tx_desc = NULL;
+	struct mvneta_tx_desc *tx_desc;
 	int i, num_frames = 1;
 	struct page *page;
 
@@ -2140,10 +2140,8 @@ mvneta_xdp_submit_frame(struct mvneta_port *pp, struct mvneta_tx_queue *txq,
 
 		mvneta_txq_inc_put(txq);
 	}
-
 	/*last descriptor */
-	if (likely(tx_desc))
-		tx_desc->command |= MVNETA_TXD_L_DESC | MVNETA_TXD_Z_PAD;
+	tx_desc->command |= MVNETA_TXD_L_DESC | MVNETA_TXD_Z_PAD;
 
 	txq->pending += num_frames;
 	txq->count += num_frames;
-- 
2.34.1