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_IO*() is the proper way of defining ioctl numbers. All these vt numbers were synthetically built up the same way the _IO() macro does. So instead of implicit hex numbers, use _IO() properly. To not change the pre-existing numbers, use only _IO() (and not _IOR() or _IOW()). The latter would change the numbers indeed. Objdump of vt_ioctl.o reveals no difference with this patch. Again, VT_GETCONSIZECSRPOS already uses _IOR(), so everything is paved for this patch. Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org> Cc: Nicolas Pitre <nico@fluxnic.net> Reviewed-by: Nicolas Pitre <npitre@baylibre.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20250611100319.186924-8-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>