Indentation should be done with spaces, not with TABs, in the UI, graphics, audio and USB subsystem
There are still a lot of old files in the QEMU UI, graphics, audio and USB code base that use TABs for indentation instead of using 4 spaces in these files here:
ui/vnc-enc-zywrle-template.c ui/vgafont.h ui/keycodemapdb/tests/stdc.c ui/vnc_keysym.h ui/vnc-enc-zywrle.h hw/audio/intel-hda-defs.h hw/audio/wm8750.c hw/audio/fmopl.c hw/audio/fmopl.h hw/display/vga_regs.h hw/display/artist.c hw/display/xenfb.c hw/display/omap_dss.c hw/display/tc6393xb.c hw/display/vga.c hw/display/omap_lcdc.c hw/display/blizzard.c hw/display/cirrus_vga.c hw/display/pxa2xx_lcd.c hw/usb/hcd-musb.c hw/usb/quirks-pl2303-ids.h hw/usb/dev-hid.c hw/usb/tusb6010.c hw/usb/quirks-ftdi-ids.h hw/usb/dev-hub.c hw/usb/dev-wacom.c hw/usb/dev-network.c include/hw/usb.h include/hw/usb/dwc2-regs.h
The TABs should be replaced with spaces, to make sure that we have a consistent coding style with an indentation of 4 spaces everywhere.
Edited by Thomas Huth