Hi Uwe,

On Tue, 26 May 2026 at 16:17, Uwe Kleine-König (The Capable Hub)
[off-list ref] wrote:

this series is about improving the handling of pointers in struct
zorro_device_id's driver_data.

While it's ok on all current Linux platforms to store a pointer in an
unsigned long variable, it involves casting that loses type information.
This can be nicely seen in patch #7 where after profiting from patch #6
the compiler notices a missing const.

Preparing for that change, all zorro_device_ids are converted to use
named initializers, which is also a nice cleanup that could stand for
itself, as it improves readability for humans. (That is necessary
because an anonymous union can be initialized by name, but not using a
list initializer.)

My motivation for this series is the CHERI hardware extension. With that
pointers are bigger than longs and thus you cannot store pointers in
zorro_device_id::driver_data. So this series is also about getting
support for CHERI into the mainline, but I hope the clean up effects
mentioned above are justification enough to accept this series.

Thanks for your series!

The dependencies in this series are as follows:

 - Patch #5 depends on #1, #2

s/5/6/?

 - Patches #7 and #8 depend on patch #6.

So if the ata maintainers agreed to merge their patch #1 via scsi, and
Geert agrees to patch #5 and that it's also merged via scsi, patches #1,

s/5/6/?

#2, #6 and #7 can go in without further coordination.

Patches #3, #4 and #5 are only about using the same initialization style
for all zorro_device_id and can go in without coordination.

Best regards
Uwe

Uwe Kleine-König (The Capable Hub) (8):
  ata: pata_budda: Use named initializer for zorro_device_id
  scsi: Use named initializer for zorro_device_id
  net: Use named initializer for zorro_device_id arrays
  i2c: icy: Use named initializer for zorro_device_id arrays
  video: fm2fb: Use named initializer for zorro_device_id array
  zorro: Simplify storing pointers in device id struct
  scsi: zorro7xx: Make use of struct zorro_device_id::driver_data_ptr
  video: cirrusfb: Make use of struct zorro_device_id::driver_data_ptr

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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