Hopefully it's the final installment for the GTF implementation.

The fb_get_mode() function checks for a bit in 'flags' (FB_IGNOREMON) so
it will generate GTF timings regardless of the validity of
info->monspecs.  This way, drivers can still use GTF even if they don't
have the operational limits of the monitor.  They'll just decide what is
a practical safe limit.

Applied.