Re: [PATCH 1/1] s390/dasd: remove ioctl_by_bdev from DASD driver

[Stefan Haberland]

Am 06.05.20 um 06:52 schrieb Christoph Hellwig:
>
> No, I mean the series that I actually sent out:
>
> https://lkml.org/lkml/2020/4/21/66
> https://lkml.org/lkml/2020/4/21/68
> https://lkml.org/lkml/2020/4/21/69

OK, just thought again about your suggestion and also that
you have already been talking about a symbol lookup I just
have written a prototype that took your first two patches
as base, exports the symbol of dasd_biodasdinfo and in
ibm.c I do a kallsyms_lookup_name("dasd_biodasdinfo").

So I would not have to define a structure twice or rely on
MAJORs. Also we would not have to define an own file
operation only for DASD devices.

What do you think about this? If you agree I will polish
the patches, test them and send them for review.