[clang][Sema] Enable the kprintf format attribute

Author: brad0

clang/lib/Sema/SemaChecking.cpp

@@ -7860,8 +7860,9 @@ static void CheckFormatString(
   }
 
   if (Type == Sema::FST_Printf || Type == Sema::FST_NSString ||
-      Type == Sema::FST_FreeBSDKPrintf || Type == Sema::FST_OSLog ||
-      Type == Sema::FST_OSTrace || Type == Sema::FST_Syslog) {
+      Type == Sema::FST_Kprintf || Type == Sema::FST_FreeBSDKPrintf ||
+      Type == Sema::FST_OSLog || Type == Sema::FST_OSTrace ||
+      Type == Sema::FST_Syslog) {
     CheckPrintfHandler H(
         S, FExpr, OrigFormatExpr, Type, firstDataArg, numDataArgs,
         (Type == Sema::FST_NSString || Type == Sema::FST_OSTrace), Str, APK,
@@ -7870,7 +7871,7 @@ static void CheckFormatString(
 
     if (!analyze_format_string::ParsePrintfString(
             H, Str, Str + StrLen, S.getLangOpts(), S.Context.getTargetInfo(),
-            Type == Sema::FST_FreeBSDKPrintf))
+            Type == Sema::FST_Kprintf || Type == Sema::FST_FreeBSDKPrintf))
       H.DoneProcessing();
   } else if (Type == Sema::FST_Scanf) {
     CheckScanfHandler H(S, FExpr, OrigFormatExpr, Type, firstDataArg,