[PATCH 13/28] i40e: Replace strlcat() with snprintf() in i40e_nvm_version_str()

[Bill Wendling]

i40e_nvm_version_str() uses strlcat() to optionally append the EETrackID
and combo image version strings to the NVM version buffer.

In preparation for removing the deprecated strlcat() API[1], replace these
strlcat() calls with bounded snprintf() calls at the current end of the
buffer.

Link: https://github.com/KSPP/linux/issues/370 [1]
Cc: codemender-patching+linux@xxxxxxxxxx
Assisted-by: CoPilot:r1-preview [editor_update_file, shell_command_run]
Signed-off-by: Bill Wendling <morbo@xxxxxxxxxx>
---
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---
 drivers/net/ethernet/intel/i40e/i40e.h | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 1b6a8fbaa648..9f792128a0ef 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -1059,19 +1059,26 @@ static inline char *i40e_nvm_version_str(struct i40e_hw *hw, char *buf,
 					 size_t len)
 {
 	char ver[16] = " ";
+	size_t offset;
 
 	/* Get NVM version */
 	i40e_info_nvm_ver(hw, buf, len);
 
 	/* Append EETrackID if provided */
 	i40e_info_eetrack(hw, &ver[1], sizeof(ver) - 1);
-	if (strlen(ver) > 1)
-		strlcat(buf, ver, len);
+	if (strlen(ver) > 1) {
+		offset = strlen(buf);
+		if (offset < len)
+			snprintf(buf + offset, len - offset, "%s", ver);
+	}
 
 	/* Append combo image version if provided */
 	i40e_info_civd_ver(hw, &ver[1], sizeof(ver) - 1);
-	if (strlen(ver) > 1)
-		strlcat(buf, ver, len);
+	if (strlen(ver) > 1) {
+		offset = strlen(buf);
+		if (offset < len)
+			snprintf(buf + offset, len - offset, "%s", ver);
+	}
 
 	return buf;
 }
-- 
2.55.0.1032.g73a4cd73de-goog