HID reports of zero size

[Dmitry Antipov <dmantipov@xxxxxxxxx>]

Assuming that the device or its emulation is working properly, is
it valid to have zero 'size' of 'struct hid_report' even after

report->size += parser->global.report_size * parser->global.report_count;

in hid_add_field()?

Thanks,
Dmitry