[PATCH 2/2] usb: dwc3: debug: purge usage of strcat

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Now that buffer size is always passed around, we don't need to rely on
strcat anymore.

Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
---
 drivers/usb/dwc3/debug.h | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h
index e925a6b73005..6759a7efd8d5 100644
--- a/drivers/usb/dwc3/debug.h
+++ b/drivers/usb/dwc3/debug.h
@@ -545,21 +545,25 @@ static inline const char *dwc3_ep_event_string(char *str, size_t size,
 				status & DEPEVT_STATUS_TRANSFER_ACTIVE ?
 				" (Active)" : " (Not Active)");
 
+		len = strlen(str);
+
 		/* Control Endpoints */
 		if (epnum <= 1) {
 			int phase = DEPEVT_STATUS_CONTROL_PHASE(event->status);
 
 			switch (phase) {
 			case DEPEVT_STATUS_CONTROL_DATA:
-				strcat(str, " [Data Phase]");
+				snprintf(str + ret, size - ret,
+						" [Data Phase]");
 				break;
 			case DEPEVT_STATUS_CONTROL_STATUS:
-				strcat(str, " [Status Phase]");
+				snprintf(str + ret, size - ret,
+						" [Status Phase]");
 			}
 		}
 		break;
 	case DWC3_DEPEVT_RXTXFIFOEVT:
-		strcat(str, "FIFO");
+		snprintf(str + ret, size - ret, "FIFO");
 		break;
 	case DWC3_DEPEVT_STREAMEVT:
 		status = event->status;
@@ -571,13 +575,13 @@ static inline const char *dwc3_ep_event_string(char *str, size_t size,
 			break;
 		case DEPEVT_STREAMEVT_NOTFOUND:
 		default:
-			strcat(str, " Stream Not Found");
+			snprintf(str + ret, size - ret, " Stream Not Found");
 			break;
 		}
 
 		break;
 	case DWC3_DEPEVT_EPCMDCMPLT:
-		strcat(str, "Endpoint Command Complete");
+		snprintf(str + ret, size - ret, "Endpoint Command Complete");
 		break;
 	default:
 		snprintf(str, size, "UNKNOWN");
-- 
2.20.1




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