From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48057) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UtDlo-0000KE-R2 for qemu-devel@nongnu.org; Sun, 30 Jun 2013 05:18:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UtDln-0004rE-Ig for qemu-devel@nongnu.org; Sun, 30 Jun 2013 05:18:08 -0400 Received: from cantor2.suse.de ([195.135.220.15]:45309 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UtDln-0004rA-9O for qemu-devel@nongnu.org; Sun, 30 Jun 2013 05:18:07 -0400 Message-ID: <51CFF7C8.9050906@suse.de> Date: Sun, 30 Jun 2013 11:18:00 +0200 From: =?ISO-8859-15?Q?Andreas_F=E4rber?= MIME-Version: 1.0 References: <754a2c1bb8f9b99e5e8866950feced91b2334fe9.1372055322.git.peter.crosthwaite@xilinx.com> In-Reply-To: <754a2c1bb8f9b99e5e8866950feced91b2334fe9.1372055322.git.peter.crosthwaite@xilinx.com> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH v2 13/30] misc/ivshmem: QOM Upcast Sweep List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: peter.crosthwaite@xilinx.com Cc: pbonzini@redhat.com, Hu Tao , qemu-devel@nongnu.org, mst@redhat.com Am 24.06.2013 08:59, schrieb peter.crosthwaite@xilinx.com: > From: Peter Crosthwaite >=20 > Define and use standard QOM cast macro. Remove usages of DO_UPCAST > and direct -> style upcasting. >=20 > Signed-off-by: Peter Crosthwaite > --- >=20 > hw/misc/ivshmem.c | 18 +++++++++++------- > 1 file changed, 11 insertions(+), 7 deletions(-) >=20 > diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c > index 5658f73..fd40caf 100644 > --- a/hw/misc/ivshmem.c > +++ b/hw/misc/ivshmem.c > @@ -48,6 +48,10 @@ > #define IVSHMEM_DPRINTF(fmt, ...) > #endif > =20 > +#define TYPE_IVSHMEM "ivshmem" > +#define IVSHMEM(obj) \ > + OBJECT_CHECK(IVShmemState, (obj), TYPE_IVSHMEM) > + > typedef struct Peer { > int nb_eventfds; > EventNotifier *eventfds; > @@ -341,7 +345,7 @@ static void create_shared_memory_BAR(IVShmemState *= s, int fd) { > =20 > memory_region_init_ram_ptr(&s->ivshmem, "ivshmem.bar2", > s->ivshmem_size, ptr); > - vmstate_register_ram(&s->ivshmem, &s->dev.qdev); > + vmstate_register_ram(&s->ivshmem, DEVICE(&s->dev)); DEVICE(s) > memory_region_add_subregion(&s->bar, 0, &s->ivshmem); > =20 > /* region for shared memory */ > @@ -469,7 +473,7 @@ static void ivshmem_read(void *opaque, const uint8_= t * buf, int flags) > incoming_f= d, 0); > memory_region_init_ram_ptr(&s->ivshmem, > "ivshmem.bar2", s->ivshmem_size, ma= p_ptr); > - vmstate_register_ram(&s->ivshmem, &s->dev.qdev); > + vmstate_register_ram(&s->ivshmem, DEVICE(&s->dev)); DEVICE(s) Renaming the parent field showed that there are still some s->dev accesses missed in this patch. Applying anyway to qom-next: https://github.com/afaerber/qemu-cpu/commits/qom-next IMO such casting cleanup patches make the most sense when they are complete in removing all accesses to the parent field and proving that by renaming the parent field with the only remaining usage being in VMSTATE_PCI(). We won't be able to drop DO_UPCAST() since it's being used outside QOM in the block layer for instance. I'm hoping we can squash a fixup so that we don't need to touch each device twice. Regards, Andreas > =20 > IVSHMEM_DPRINTF("guest h/w addr =3D %" PRIu64 ", size =3D %" P= RIu64 "\n", > s->ivshmem_offset, s->ivshmem_size); > @@ -534,7 +538,7 @@ static void ivshmem_use_msix(IVShmemState * s) > =20 > static void ivshmem_reset(DeviceState *d) > { > - IVShmemState *s =3D DO_UPCAST(IVShmemState, dev.qdev, d); > + IVShmemState *s =3D IVSHMEM(d); > =20 > s->intrstatus =3D 0; > ivshmem_use_msix(s); > @@ -648,7 +652,7 @@ static int pci_ivshmem_init(PCIDevice *dev) > s->ivshmem_size =3D ivshmem_get_size(s); > } > =20 > - register_savevm(&s->dev.qdev, "ivshmem", 0, 0, ivshmem_save, ivshm= em_load, > + register_savevm(DEVICE(dev), "ivshmem", 0, 0, ivshmem_save, ivshme= m_load, > = dev); > =20 > /* IRQFD requires MSI */ > @@ -780,10 +784,10 @@ static void pci_ivshmem_uninit(PCIDevice *dev) > =20 > memory_region_destroy(&s->ivshmem_mmio); > memory_region_del_subregion(&s->bar, &s->ivshmem); > - vmstate_unregister_ram(&s->ivshmem, &s->dev.qdev); > + vmstate_unregister_ram(&s->ivshmem, DEVICE(dev)); > memory_region_destroy(&s->ivshmem); > memory_region_destroy(&s->bar); > - unregister_savevm(&dev->qdev, "ivshmem", s); > + unregister_savevm(DEVICE(dev), "ivshmem", s); > } > =20 > static Property ivshmem_properties[] =3D { > @@ -813,7 +817,7 @@ static void ivshmem_class_init(ObjectClass *klass, = void *data) > } > =20 > static const TypeInfo ivshmem_info =3D { > - .name =3D "ivshmem", > + .name =3D TYPE_IVSHMEM, > .parent =3D TYPE_PCI_DEVICE, > .instance_size =3D sizeof(IVShmemState), > .class_init =3D ivshmem_class_init, >=20 --=20 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N=FCrnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imend=F6rffer; HRB 16746 AG N=FCrnbe= rg