netdev - [patch net-next v2 1/7] devlink: don't use strcpy() to copy param value

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]

Date:   Fri, 10 Feb 2023 11:01:25 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com, tariqt@...dia.com, saeedm@...dia.com,
        jacob.e.keller@...el.com, gal@...dia.com, kim.phillips@....com,
        moshe@...dia.com, simon.horman@...igine.com, idosch@...dia.com
Subject: [patch net-next v2 1/7] devlink: don't use strcpy() to copy param value

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

No need to treat string params any different comparing to other types.
Rely on the struct assign to copy the whole struct, including the
string.

Signed-off-by: Jiri Pirko <jiri@...dia.com>
Reviewed-by: Simon Horman <simon.horman@...igine.com>
Acked-by: Jakub Kicinski <kuba@...nel.org>
---
 net/devlink/leftover.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/net/devlink/leftover.c b/net/devlink/leftover.c
index f05ab093d231..f2f6a2f42864 100644
--- a/net/devlink/leftover.c
+++ b/net/devlink/leftover.c
@@ -4388,10 +4388,7 @@ static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink,
 		return -EOPNOTSUPP;
 
 	if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) {
-		if (param->type == DEVLINK_PARAM_TYPE_STRING)
-			strcpy(param_item->driverinit_value.vstr, value.vstr);
-		else
-			param_item->driverinit_value = value;
+		param_item->driverinit_value = value;
 		param_item->driverinit_value_valid = true;
 	} else {
 		if (!param->set)
@@ -9656,10 +9653,7 @@ int devl_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
 						      DEVLINK_PARAM_CMODE_DRIVERINIT)))
 		return -EOPNOTSUPP;
 
-	if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING)
-		strcpy(init_val->vstr, param_item->driverinit_value.vstr);
-	else
-		*init_val = param_item->driverinit_value;
+	*init_val = param_item->driverinit_value;
 
 	return 0;
 }
@@ -9690,10 +9684,7 @@ void devl_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
 						      DEVLINK_PARAM_CMODE_DRIVERINIT)))
 		return;
 
-	if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING)
-		strcpy(param_item->driverinit_value.vstr, init_val.vstr);
-	else
-		param_item->driverinit_value = init_val;
+	param_item->driverinit_value = init_val;
 	param_item->driverinit_value_valid = true;
 
 	devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW);
-- 
2.39.0