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Re: [PATCH v2 12/58] qdev: Convert uses of qdev_set_parent_bus() manuall
From: |
Philippe Mathieu-Daudé |
Subject: |
Re: [PATCH v2 12/58] qdev: Convert uses of qdev_set_parent_bus() manually |
Date: |
Tue, 9 Jun 2020 10:12:43 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 |
On 5/29/20 3:44 PM, Markus Armbruster wrote:
> Same transformation as in the previous commit. Manual, because
> convincing Coccinelle to transform these cases is somewhere between
> not worthwhile and infeasible (at least for me).
>
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
> hw/pci-host/prep.c | 3 +--
> hw/ppc/pnv.c | 6 ++----
> hw/s390x/sclp.c | 10 ++++------
> 3 files changed, 7 insertions(+), 12 deletions(-)
>
> diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
> index c821ef889d..42c7e63a60 100644
> --- a/hw/pci-host/prep.c
> +++ b/hw/pci-host/prep.c
> @@ -268,7 +268,7 @@ static void raven_pcihost_realizefn(DeviceState *d, Error
> **errp)
> memory_region_add_subregion(address_space_mem, 0xbffffff0,
> &s->pci_intack);
>
> /* TODO Remove once realize propagates to child devices. */
> - object_property_set_bool(OBJECT(&s->pci_dev), true, "realized", errp);
> + qdev_realize(DEVICE(&s->pci_dev), BUS(&s->pci_bus), errp);
> }
>
> static void raven_pcihost_initfn(Object *obj)
> @@ -308,7 +308,6 @@ static void raven_pcihost_initfn(Object *obj)
>
> object_initialize(&s->pci_dev, sizeof(s->pci_dev),
> TYPE_RAVEN_PCI_DEVICE);
> pci_dev = DEVICE(&s->pci_dev);
> - qdev_set_parent_bus(pci_dev, BUS(&s->pci_bus));
> object_property_set_int(OBJECT(&s->pci_dev), PCI_DEVFN(0, 0), "addr",
> NULL);
> qdev_prop_set_bit(pci_dev, "multifunction", false);
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index 8562af3fe0..e0588285a2 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -1212,12 +1212,11 @@ static void pnv_chip_power8_realize(DeviceState *dev,
> Error **errp)
> object_property_set_int(OBJECT(phb), i, "index", &error_fatal);
> object_property_set_int(OBJECT(phb), chip->chip_id, "chip-id",
> &error_fatal);
> - object_property_set_bool(OBJECT(phb), true, "realized", &local_err);
> + qdev_realize(DEVICE(phb), NULL, &local_err);
> if (local_err) {
> error_propagate(errp, local_err);
> return;
> }
> - qdev_set_parent_bus(DEVICE(phb), sysbus_get_default());
>
> /* Populate the XSCOM address space. */
> pnv_xscom_add_subregion(chip,
> @@ -1422,12 +1421,11 @@ static void pnv_chip_power9_phb_realize(PnvChip
> *chip, Error **errp)
> object_property_set_int(obj, PNV_PHB4_DEVICE_ID, "device-id",
> &error_fatal);
> object_property_set_link(obj, OBJECT(stack), "stack",
> &error_abort);
> - object_property_set_bool(obj, true, "realized", &local_err);
> + qdev_realize(DEVICE(obj), NULL, &local_err);
> if (local_err) {
> error_propagate(errp, local_err);
> return;
> }
> - qdev_set_parent_bus(DEVICE(obj), sysbus_get_default());
>
> /* Populate the XSCOM address space. */
> pnv_xscom_add_subregion(chip,
> diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c
> index 20aca30ac4..40e27a8cb4 100644
> --- a/hw/s390x/sclp.c
> +++ b/hw/s390x/sclp.c
> @@ -333,17 +333,15 @@ static void sclp_realize(DeviceState *dev, Error **errp)
> uint64_t hw_limit;
> int ret;
>
> - object_property_set_bool(OBJECT(sclp->event_facility), true, "realized",
> - &err);
> - if (err) {
> - goto out;
> - }
> /*
> * qdev_device_add searches the sysbus for TYPE_SCLP_EVENTS_BUS. As long
> * as we can't find a fitting bus via the qom tree, we have to add the
> * event facility to the sysbus, so e.g. a sclp console can be created.
> */
> - qdev_set_parent_bus(DEVICE(sclp->event_facility), sysbus_get_default());
> + qdev_realize(DEVICE(sclp->event_facility), NULL, &err);
I agree with the API change, but I find using sysbus_get_default() way
clearer than using NULL. I'v go the other way around, replace bus=NULL
by an explicit bus=sysbus_get_default() in our codebase.
Can be done later, I know... But we can also keep sysbus_get_default()
in this patch ;)
Whichever you prefer (mine is keeping it):
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> + if (err) {
> + goto out;
> + }
>
> ret = s390_set_memory_limit(machine->maxram_size, &hw_limit);
> if (ret == -E2BIG) {
>
- Re: [PATCH v2 12/58] qdev: Convert uses of qdev_set_parent_bus() manually,
Philippe Mathieu-Daudé <=