On Mon, Jun 6, 2022 at 11:10 AM Arnd Bergmann <[email protected]> wrote: > From: Arnd Bergmann <[email protected]> > > All architecture-independent users of virt_to_bus() and bus_to_virt() > have been fixed to use the dma mapping interfaces or have been > removed now. This means the definitions on most architectures, and the > CONFIG_VIRT_TO_BUS symbol are now obsolete and can be removed. > > The only exceptions to this are a few network and scsi drivers for m68k > Amiga and VME machines and ppc32 Macintosh. These drivers work correctly > with the old interfaces and are probably not worth changing. > > On alpha and parisc, virt_to_bus() were still used in asm/floppy.h. > alpha can use isa_virt_to_bus() like x86 does, and parisc can just > open-code the virt_to_phys() here, as this is architecture specific > code. > > I tried updating the bus-virt-phys-mapping.rst documentation, which > started as an email from Linus to explain some details of the Linux-2.0 > driver interfaces. The bits about virt_to_bus() were declared obsolete > backin 2000, and the rest is not all that relevant any more, so in the > end I just decided to remove the file completely. > > Signed-off-by: Arnd Bergmann <[email protected]>
> arch/m68k/Kconfig | 1 - > arch/m68k/include/asm/virtconvert.h | 4 +- Reviewed-by: Geert Uytterhoeven <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected] In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
