linux-kernel - [PATCH net-next v3 3/3] openvswitch: Use string_is

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Date:   Wed,  8 Feb 2023 15:31:53 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Xin Long <lucien.xin@...il.com>, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, dev@...nvswitch.org,
        tipc-discussion@...ts.sourceforge.net
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Pravin B Shelar <pshelar@....org>,
        Jon Maloy <jmaloy@...hat.com>,
        Ying Xue <ying.xue@...driver.com>,
        Simon Horman <simon.horman@...igine.com>
Subject: [PATCH net-next v3 3/3] openvswitch: Use string_is_terminated() helper

Use string_is_terminated() helper instead of cpecific memchr() call.
This shows better the intention of the call.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Reviewed-by: Simon Horman <simon.horman@...igine.com>
---
v3: renamed to string_is_terminated (Jakub)
v2: added tag and updated subject (Simon)
 net/openvswitch/conntrack.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 2172930b1f17..f95272ebfa08 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -9,6 +9,7 @@
 #include <linux/udp.h>
 #include <linux/sctp.h>
 #include <linux/static_key.h>
+#include <linux/string_helpers.h>
 #include <net/ip.h>
 #include <net/genetlink.h>
 #include <net/netfilter/nf_conntrack_core.h>
@@ -1383,7 +1384,7 @@ static int parse_ct(const struct nlattr *attr, struct ovs_conntrack_info *info,
 #endif
 		case OVS_CT_ATTR_HELPER:
 			*helper = nla_data(a);
-			if (!memchr(*helper, '\0', nla_len(a))) {
+			if (!string_is_terminated(*helper, nla_len(a))) {
 				OVS_NLERR(log, "Invalid conntrack helper");
 				return -EINVAL;
 			}
@@ -1404,7 +1405,7 @@ static int parse_ct(const struct nlattr *attr, struct ovs_conntrack_info *info,
 #ifdef CONFIG_NF_CONNTRACK_TIMEOUT
 		case OVS_CT_ATTR_TIMEOUT:
 			memcpy(info->timeout, nla_data(a), nla_len(a));
-			if (!memchr(info->timeout, '\0', nla_len(a))) {
+			if (!string_is_terminated(info->timeout, nla_len(a))) {
 				OVS_NLERR(log, "Invalid conntrack timeout");
 				return -EINVAL;
 			}
-- 
2.39.1