netdev - [PATCH V2 net 2/3] net: hns3: fix return value check bug of rx copybreak

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]

Date:   Mon, 14 Nov 2022 16:20:47 +0800
From:   Hao Lan <lanhao@...wei.com>
To:     <lanhao@...wei.com>, <lipeng321@...wei.com>,
        <shenjian15@...wei.com>, <linyunsheng@...wei.com>,
        <liuyonglong@...wei.com>, <chenhao418@...wei.com>,
        <wangjie125@...wei.com>, <huangguangbin2@...wei.com>,
        <yisen.zhuang@...wei.com>, <salil.mehta@...wei.com>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <netdev@...r.kernel.org>,
        <xiaojiantao1@...artners.com>, <dvyukov@...gle.com>
Subject: [PATCH V2 net 2/3] net: hns3: fix return value check bug of rx copybreak

From: Jie Wang <wangjie125@...wei.com>

The refactoring of rx copybreak modifies the original return logic, which
will make this feature unavailable. So this patch fixes the return logic of
rx copybreak.

Fixes: e74a726da2c4 ("net: hns3: refactor hns3_nic_reuse_page()")
Fixes: 99f6b5fb5f63 ("net: hns3: use bounce buffer when rx page can not be reused")
Signed-off-by: Jie Wang <wangjie125@...wei.com>
Signed-off-by: Hao Lan <lanhao@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 7fc83409f257..028577943ec5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -3778,8 +3778,8 @@ static void hns3_nic_reuse_page(struct sk_buff *skb, int i,
 		desc_cb->reuse_flag = 1;
 	} else if (frag_size <= ring->rx_copybreak) {
 		ret = hns3_handle_rx_copybreak(skb, i, ring, pull_len, desc_cb);
-		if (ret)
-			goto out;
+		if (!ret)
+			return;
 	}
 
 out:
-- 
2.30.0