+u8 *
+format_l2_input_features (u8 * s, va_list * args)
+{
+ static char *display_names[] = {
+#define _(sym,name) #sym,
+ foreach_l2input_feat
+#undef _
+ };
+ u32 feature_bitmap = va_arg (*args, u32);
+ u32 verbose = va_arg (*args, u32);
+
+ if (feature_bitmap == 0)
+ {
+ s = format (s, " none configured");
+ return s;
+ }
+
+ feature_bitmap &= ~L2INPUT_FEAT_DROP; /* Not a feature */
+ int i;
+ for (i = L2INPUT_N_FEAT - 1; i >= 0; i--)
+ {
+ if (feature_bitmap & (1 << i))
+ {
+ if (verbose)
+ s = format (s, "%17s (%s)\n",
+ display_names[i], l2input_feat_names[i]);
+ else
+ s = format (s, "%s ", l2input_feat_names[i]);
+ }
+ }
+ return s;
+}
+#endif /* CLIB_MARCH_VARIANT */