netdev - [PATCH] vlan: Remove unnecessary comparison of unsigned against 0

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: <20161018064417.26379-1-tklauser@distanz.ch>
Date:   Tue, 18 Oct 2016 08:44:17 +0200
From:   Tobias Klauser <tklauser@...tanz.ch>
To:     Patrick McHardy <kaber@...sh.net>,
        "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org
Subject: [PATCH] vlan: Remove unnecessary comparison of unsigned against 0

args.u.name_type is of type unsigned int and is always >= 0.

This fixes the following GCC warning:

  net/8021q/vlan.c: In function ‘vlan_ioctl_handler’:
  net/8021q/vlan.c:574:14: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]

Signed-off-by: Tobias Klauser <tklauser@...tanz.ch>
---
 net/8021q/vlan.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 8de138d3306b..f8903c1e1010 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -571,8 +571,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 		err = -EPERM;
 		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			break;
-		if ((args.u.name_type >= 0) &&
-		    (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
+		if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) {
 			struct vlan_net *vn;
 
 			vn = net_generic(net, vlan_net_id);
-- 
2.9.0