netdev - [patch net-next RFC 04/10] devlink: append split port number to the port name

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]

Message-Id: <20210113121222.733517-5-jiri@resnulli.us>
Date:   Wed, 13 Jan 2021 13:12:16 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, jacob.e.keller@...el.com,
        roopa@...dia.com, mlxsw@...dia.com
Subject: [patch net-next RFC 04/10] devlink: append split port number to the port name

From: Jiri Pirko <jiri@...dia.com>

Instead of doing sprintf twice in case the port is split or not, append
the split port suffix in case the port is split.

Signed-off-by: Jiri Pirko <jiri@...dia.com>
---
 net/core/devlink.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 9c76edf8c8af..347976b88404 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -8654,12 +8654,10 @@ static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port,
 	switch (attrs->flavour) {
 	case DEVLINK_PORT_FLAVOUR_PHYSICAL:
 	case DEVLINK_PORT_FLAVOUR_VIRTUAL:
-		if (!attrs->split)
-			n = snprintf(name, len, "p%u", attrs->phys.port_number);
-		else
-			n = snprintf(name, len, "p%us%u",
-				     attrs->phys.port_number,
-				     attrs->phys.split_subport_number);
+		n = snprintf(name, len, "p%u", attrs->phys.port_number);
+		if (attrs->split)
+			n += snprintf(name + n, len - n, "s%u",
+				      attrs->phys.split_subport_number);
 		break;
 	case DEVLINK_PORT_FLAVOUR_CPU:
 	case DEVLINK_PORT_FLAVOUR_DSA:
-- 
2.26.2