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From:   Jorge Lopez <jorgealtxwork@gmail.com>
Date:   Mon, 24 Apr 2023 17:14:57 -0500
Message-ID: <CAOOmCE8SGn9JsWVXUDnKgWyxSzuCuiXzjsv3V737uNXPu2jykA@mail.gmail.com>
Subject: Re: [PATCH v11 02/14] HP BIOSCFG driver - biosattr-interface
To:     =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= <thomas@t-8ch.de>
Cc:     hdegoede@redhat.com, platform-driver-x86@vger.kernel.org,
        linux-kernel@vger.kernel.org
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HI Thomas,

Sorry for asking again.  I just want to be understand exactly what I must do.


> > > >
> > > > > +     args->command = command;
> > > > > +     args->commandtype = query;
> > > > > +     args->datasize = insize;
> > > > > +     memcpy(args->data, buffer, flex_array_size(args, data, insize));
> > > > > +
> > > > > +     ret = wmi_evaluate_method(HP_WMI_BIOS_GUID, 0, mid, &input, &output);
> > > >
> > > > The driver is mixing calls to the UUID based APIs and the wmi_device
> > > > ones.
> > > > wmi_devices is newer and preferred.
> > >
> > > The driver  calls wmi_evaluate_method when initiating an WMI call.
> > > Where is the driver mixing calls to the UUID based APIs and the
> > > wmi_device one?
> > > WMI calls are made by calling hp_wmi_perform_query() which invokes
> > > wmi_evaluate_method().
> > > Did I miss something?
> >
> > wmi_evaluate_method() is UUID-based.
> > struct wmi_driver is wmi_device based.
> >
> > The wmi_driver/wmi_device code essentially does nothing and is only used
> > to validate that a device is present.
> > The same can be done more easily wmi_has_guid().
> >
>

Are you asking to replace all calls to wmi_evaluate_method() which is
UUID based API with calls to  wmidev_evaluate_method() which is
wmi_device based?  Correct?