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Re: [PATCH 4/8] hw/ide: Move MAX_IDE_BUS define to one header

From: Markus Armbruster
Subject: Re: [PATCH 4/8] hw/ide: Move MAX_IDE_BUS define to one header
Date: Mon, 16 Mar 2020 07:53:45 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

BALATON Zoltan <address@hidden> writes:

> There are several definitions of MAX_IDE_BUS in different boards (some
> of them unused) with the same value. Move it to include/hw/ide/internal.h
> to have it in a central place.
> Signed-off-by: BALATON Zoltan <address@hidden>

This one feels a bit questionable.

The number of (PATA) IDE buses provides by a host bus adapter depends on
the HBA.  It happens to be 2 for all HBAs we implement, but it could
really be anything.

Similar for SATA, where the common number is 6, but could really be
anything.  I can't see offhand whether any HBA we implement provides a
different number.

By moving MAX_IDE_BUS to include/hw/ide/internal.h, you bake the
accidental commonality into the interface to the IDE core.  I'd prefer
not to.

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