Hi Jaedon, Em Fri, 1 Dec 2017 21:31:27 +0900 Jaedon Shin <jaedon.shin@xxxxxxxxx> escreveu: > This patch series supports compat ioctl for 32-bit user space applications > in 64-bit system. > > Jaedon Shin (3): > media: dvb_frontend: Add unlocked_ioctl in dvb_frontend.c > media: dvb_frontend: Add compat_ioctl callback > media: dvb_frontend: Add commands implementation for compat ioct Thanks for the series. Yeah, indeed we need something like that. Yet, I suspect that you should also move the logic inside dvb_frontend_handle_ioctl() with copies from/to userspace. We don't want the logic there to be called when a 32-bit userspace copy happens, as it should now use the new compat32 code. Thanks, Mauro
