Indentation should be done with spaces, not with TABs
There are still a lot of misc files in the QEMU code base that use TABs for indentation instead of using spaces:
include/qemu/uri.h include/qemu/bitmap.h include/qemu/compiler.h include/exec/cpu-all.h include/hw/pci/pci_bridge.h include/hw/acpi/acpi.h include/hw/pcmcia.h include/hw/virtio/virtio.h include/hw/scsi/scsi.h include/hw/elf_ops.h include/hw/sd/sd.h include/disas/dis-asm.h include/crypto/desrfb.h include/crypto/aes.h include/elf.h pc-bios/optionrom/optionrom.h hw/char/parallel.c hw/char/serial.c hw/dma/etraxfs_dma.c hw/gpio/max7310.c hw/core/loader.c hw/input/ads7846.c hw/input/pckbd.c hw/input/ps2.c hw/sd/sd.c hw/watchdog/wdt_ib700.c hw/scsi/scsi-bus.c hw/rtc/twl92230.c hw/rtc/m48t59.c chardev/baum.c util/envlist.c util/bitops.c softmmu/physmem.c tests/qtest/fuzz/fuzz.c tests/unit/test-rcu-list.c crypto/desrfb.c
The TABs should be replaced with spaces, to make sure that we have a consistent coding style with an indentation of 4 spaces everywhere.