linux-kernel - [PATCH] net: mvpp2: debugfs: fix incorrect bitwise operator

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: <20180718130846.GA5380@embeddedor.com>
Date:   Wed, 18 Jul 2018 08:08:46 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Maxime Chevallier <maxime.chevallier@...tlin.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] net: mvpp2: debugfs: fix incorrect bitwise operator

The use of the | operator always leads to true, which looks rather
suspect in this case.

Fix this by using & instead.

Addresses-Coverity-ID: 1471903 ("Wrong operator used")
Fixes: dba1d918da02 ("net: mvpp2: debugfs: add entries for classifier flows")
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c
index 02dfef1..f9744a6 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c
@@ -245,7 +245,7 @@ static int mvpp2_dbgfs_flow_c2_enable_show(struct seq_file *s, void *unused)
 
 	mvpp2_cls_c2_read(port->priv, MVPP22_CLS_C2_RSS_ENTRY(port->id), &c2);
 
-	enabled = !!(c2.attr[2] | MVPP22_CLS_C2_ATTR2_RSS_EN);
+	enabled = !!(c2.attr[2] & MVPP22_CLS_C2_ATTR2_RSS_EN);
 
 	seq_printf(s, "%d\n", enabled);
 
-- 
2.7.4