allErrs = append(allErrs, validateLocalDescendingPath(mnt.SubPath, fldPath.Child("subPath"))...)
		}

		if len(mnt.SubPathExpr) > 0 {
			if len(mnt.SubPath) > 0 {
				allErrs = append(allErrs, field.Invalid(idxPath.Child("subPathExpr"), mnt.SubPathExpr, "subPathExpr and subPath are mutually exclusive"))
			}

			allErrs = append(allErrs, validateLocalDescendingPath(mnt.SubPathExpr, fldPath.Child("subPathExpr"))...)