Hi Geert,
On 27/06/22 20:26, Geert Uytterhoeven wrote:
Hi Michael,
On Sat, Jun 18, 2022 at 3:06 AM Michael Schmitz <schmitzmic@xxxxxxxxx> wrote:
Am 18.06.2022 um 00:57 schrieb Arnd Bergmann:
From: Arnd Bergmann <arnd@xxxxxxxx>
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.
The Amiga SCSI drivers are all old WD33C93 ones, and replacing
virt_to_bus by virt_to_phys in the dma_setup() function there would
cause no functional change at all.
FTR, the sgiwd93 driver use dma_map_single().
Thanks! From what I see, it doesn't have to deal with bounce buffers
though?
Cheers,
Michael
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
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
