linux-kernel - [PATCH net-next 6/7] netconsole: improve code style in parser function

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Message-Id: <20250610-rework-v1-6-7cfde283f246@debian.org>
Date: Tue, 10 Jun 2025 08:18:18 -0700
From: Breno Leitao <leitao@...ian.org>
To: "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, 
 Andrew Lunn <andrew+netdev@...n.ch>, Shuah Khan <shuah@...nel.org>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, Breno Leitao <leitao@...ian.org>, 
 kernel-team@...a.com
Subject: [PATCH net-next 6/7] netconsole: improve code style in parser
 function

Split assignment from conditional checks and use preferred null pointer
check style (!delim instead of == NULL) in netconsole_parser_cmdline().
This improves code readability and follows kernel coding style
conventions.

Signed-off-by: Breno Leitao <leitao@...ian.org>
---
 drivers/net/netconsole.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 3406a5cbdc11a..2a13b6f16f082 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -1659,7 +1659,8 @@ static int netconsole_parser_cmdline(struct netpoll *np, char *opt)
 	int ipv6;

 	if (*cur != '@') {
-		if ((delim = strchr(cur, '@')) == NULL)
+		delim = strchr(cur, '@');
+		if (!delim)
 			goto parse_failed;
 		*delim = 0;
 		if (kstrtou16(cur, 10, &np->local_port))
@@ -1670,7 +1671,8 @@ static int netconsole_parser_cmdline(struct netpoll *np, char *opt)

 	if (*cur != '/') {
 		ipversion_set = true;
-		if ((delim = strchr(cur, '/')) == NULL)
+		delim = strchr(cur, '/');
+		if (!delim)
 			goto parse_failed;
 		*delim = 0;
 		ipv6 = netpoll_parse_ip_addr(cur, &np->local_ip);
@@ -1684,7 +1686,8 @@ static int netconsole_parser_cmdline(struct netpoll *np, char *opt)

 	if (*cur != ',') {
 		/* parse out dev_name or dev_mac */
-		if ((delim = strchr(cur, ',')) == NULL)
+		delim = strchr(cur, ',');
+		if (!delim)
 			goto parse_failed;
 		*delim = 0;

@@ -1701,7 +1704,8 @@ static int netconsole_parser_cmdline(struct netpoll *np, char *opt)

 	if (*cur != '@') {
 		/* dst port */
-		if ((delim = strchr(cur, '@')) == NULL)
+		delim = strchr(cur, '@');
+		if (!delim)
 			goto parse_failed;
 		*delim = 0;
 		if (*cur == ' ' || *cur == '\t')
@@ -1713,7 +1717,8 @@ static int netconsole_parser_cmdline(struct netpoll *np, char *opt)
 	cur++;

 	/* dst ip */
-	if ((delim = strchr(cur, '/')) == NULL)
+	delim = strchr(cur, '/');
+	if (!delim)
 		goto parse_failed;
 	*delim = 0;
 	ipv6 = netpoll_parse_ip_addr(cur, &np->remote_ip);

-- 
2.47.1