[dpdk-dev] [PATCH 10/18] drivers: net: qede: fix broken strncpy

[Andy Green <andy@warmcat.com>]

/home/agreen/projects/dpdk/drivers/net/qede/qede_main.c: In function ‘qed_slowpath_start’:
/home/agreen/projects/dpdk/drivers/net/qede/qede_main.c:307:3: error: ‘strncpy’ output may be truncated copying 12 bytes from a string of length 127 [-Werror=stringop-truncation]
   strncpy((char *)drv_version.name, (const char *)params->name,
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    MCP_DRV_VER_STR_SIZE - 4);
    ~~~~~~~~~~~~~~~~~~~~~~~~~
---
 drivers/net/qede/qede_main.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/qede/qede_main.c b/drivers/net/qede/qede_main.c
index 2333ca073..243851da6 100644
--- a/drivers/net/qede/qede_main.c
+++ b/drivers/net/qede/qede_main.c
@@ -305,7 +305,8 @@ static int qed_slowpath_start(struct ecore_dev *edev,
 		    (params->drv_rev << 8) | (params->drv_eng);
 		/* TBD: strlcpy() */
 		strncpy((char *)drv_version.name, (const char *)params->name,
-			MCP_DRV_VER_STR_SIZE - 4);
+			sizeof(drv_version.name) - 1);
+		drv_version.name[sizeof(drv_version.name) - 1] = '\0';
 		rc = ecore_mcp_send_drv_version(hwfn, hwfn->p_main_ptt,
 						&drv_version);
 		if (rc) {