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From:   Cornelia Huck <cohuck@redhat.com>
To:     Uwe =?utf-8?Q?Kleine-K=C3=B6nig?= 
        <u.kleine-koenig@pengutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     kernel@pengutronix.de, Vineeth Vijayan <vneethv@linux.ibm.com>,
        Peter Oberparleiter <oberpar@linux.ibm.com>,
        Heiko Carstens <hca@linux.ibm.com>,
        Vasily Gorbik <gor@linux.ibm.com>,
        Christian Borntraeger <borntraeger@de.ibm.com>,
        Eric Farman <farman@linux.ibm.com>,
        Matthew Rosato <mjrosato@linux.ibm.com>,
        Halil Pasic <pasic@linux.ibm.com>, linux-s390@vger.kernel.org,
        linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH v2 1/4] s390/cio: Make struct css_driver::remove return
 void
In-Reply-To: <20210706154803.1631813-2-u.kleine-koenig@pengutronix.de>
Organization: Red Hat GmbH
References: <20210706154803.1631813-1-u.kleine-koenig@pengutronix.de>
 <20210706154803.1631813-2-u.kleine-koenig@pengutronix.de>
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Date:   Tue, 06 Jul 2021 17:58:25 +0200
Message-ID: <87zguzfn8e.fsf@redhat.com>
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On Tue, Jul 06 2021, Uwe Kleine-K=C3=B6nig <u.kleine-koenig@pengutronix.de>=
 wrote:

> The driver core ignores the return value of css_remove()
> (because there is only little it can do when a device disappears) and
> there are no pci_epf_drivers with a remove callback.

s/pci_epf/css/

>
> So make it impossible for future drivers to return an unused error code
> by changing the remove prototype to return void.
>
> The real motivation for this change is the quest to make struct
> bus_type::remove return void, too.
>
> Signed-off-by: Uwe Kleine-K=C3=B6nig <u.kleine-koenig@pengutronix.de>
> ---
>  drivers/s390/cio/chsc_sch.c     | 3 +--
>  drivers/s390/cio/css.c          | 7 ++++---
>  drivers/s390/cio/css.h          | 2 +-
>  drivers/s390/cio/device.c       | 5 ++---
>  drivers/s390/cio/eadm_sch.c     | 4 +---
>  drivers/s390/cio/vfio_ccw_drv.c | 3 +--
>  6 files changed, 10 insertions(+), 14 deletions(-)

Reviewed-by: Cornelia Huck <cohuck@redhat.com>