[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v2] ssi-sd: Make devices picking up backends una
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH v2] ssi-sd: Make devices picking up backends unavailable with -device |
Date: |
Thu, 18 Oct 2018 09:50:18 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) |
Peter, would you be willing to take this through your ARM tree?
Markus Armbruster <address@hidden> writes:
> Device models aren't supposed to go on fishing expeditions for
> backends. They should expose suitable properties for the user to set.
> For onboard devices, board code sets them.
>
> Device ssi-sd picks up its block backend in its init() method with
> drive_get_next() instead. This mistake is already marked FIXME since
> commit af9e40a.
>
> Unset user_creatable to remove the mistake from our external
> interface. Since the SSI bus doesn't support hotplug, only -device
> can be affected. Only certain ARM machines have ssi-sd and provide an
> SSI bus for it; this patch breaks -device ssi-sd for these machines.
> No actual use of -device ssi-sd is known.
>
> Signed-off-by: Markus Armbruster <address@hidden>
> Acked-by: Philippe Mathieu-Daudé <address@hidden>
> ---
> v2:
> * Rebase to master
> * Improve commit message
>
> hw/sd/ssi-sd.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/hw/sd/ssi-sd.c b/hw/sd/ssi-sd.c
> index 95a143bfba..623d0333e8 100644
> --- a/hw/sd/ssi-sd.c
> +++ b/hw/sd/ssi-sd.c
> @@ -284,6 +284,8 @@ static void ssi_sd_class_init(ObjectClass *klass, void
> *data)
> k->cs_polarity = SSI_CS_LOW;
> dc->vmsd = &vmstate_ssi_sd;
> dc->reset = ssi_sd_reset;
> + /* Reason: init() method uses drive_get_next() */
> + dc->user_creatable = false;
> }
>
> static const TypeInfo ssi_sd_info = {