[PATCH net-next v2] ibmvnic: fix kernel build warning in strncpy
From: Lijun Pan <hidden>
Date: 2021-06-11 18:35:22
drivers/net/ethernet/ibm/ibmvnic.c: In function ‘handle_vpd_rsp’:
drivers/net/ethernet/ibm/ibmvnic.c:4393:3: warning: ‘strncpy’ output truncated before terminating nul copying 3 bytes from a string of the same length [-Wstringop-truncation]
4393 | strncpy((char *)adapter->fw_version, "N/A", 3 * sizeof(char));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Lijun Pan <redacted>
---
v2: suggested by Shannon Nelson to use strlcpy
I looked up strscpy and it seems preferred to strlcpy.
drivers/net/ethernet/ibm/ibmvnic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 497f1a7da70b..99eddb2c8e36 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c@@ -4390,7 +4390,7 @@ static void handle_vpd_rsp(union ibmvnic_crq *crq, complete: if (adapter->fw_version[0] == '\0') - strncpy((char *)adapter->fw_version, "N/A", 3 * sizeof(char)); + strscpy((char *)adapter->fw_version, "N/A", sizeof(adapter->fw_version)); complete(&adapter->fw_done); }
--
2.23.0