Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Thu, 5 Jan 2023 20:24:34 +0800 (CST)
Message-ID: <202301052024349365834@zte.com.cn>
Mime-Version: 1.0
From:   <yang.yang29@zte.com.cn>
To:     <freude@linux.ibm.com>, <hca@linux.ibm.com>
Cc:     <gor@linux.ibm.com>, <agordeev@linux.ibm.com>,
        <borntraeger@linux.ibm.com>, <svens@linux.ibm.com>,
        <linux-s390@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <xu.panda@zte.com.cn>, <yang.yang29@zte.com.cn>
Subject: =?UTF-8?B?W1BBVENIIGxpbnV4LW5leHQgdjNdIHMzOTAvemNyeXB0OiB1c2Ugc3Ryc2NweSgpIHRvIGluc3RlYWQgb2Ygc3RybmNweSgp?=
Content-Type: text/plain;
        charset="UTF-8"
Precedence: bulk

From: Xu Panda <xu.panda@zte.com.cn>

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.

Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
---
chang for v3
 - fix the sign-off Email address
chang for v2
 - match the FROM with the Email
---
 drivers/s390/crypto/zcrypt_api.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 4bf36e53fe3e..6fe05bb82c77 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -347,8 +347,7 @@ static ssize_t zcdn_create_store(struct class *class,
 	int rc;
 	char name[ZCDN_MAX_NAME];

-	strncpy(name, skip_spaces(buf), sizeof(name));
-	name[sizeof(name) - 1] = '\0';
+	strscpy(name, skip_spaces(buf), sizeof(name));

 	rc = zcdn_create(strim(name));

@@ -365,8 +364,7 @@ static ssize_t zcdn_destroy_store(struct class *class,
 	int rc;
 	char name[ZCDN_MAX_NAME];

-	strncpy(name, skip_spaces(buf), sizeof(name));
-	name[sizeof(name) - 1] = '\0';
+	strscpy(name, skip_spaces(buf), sizeof(name));

 	rc = zcdn_destroy(strim(name));

-- 
2.15.2