| Message ID | 1543467132-2873-3-git-send-email-liq3ea@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | hw: vmmouse: use link property instead of DEFINE_PROP_PTR | expand |
Hi Li, On 11/29/18 5:52 AM, Li Qiang wrote: > According to qdev-properties.h, properties of pointer type should > be avoided. Turn "ps2_mouse" into a link. > > Reviewed-by: Markus Armbruster <armbru@redhat.com> > Reviewed-by: Darren Kenny <darren.kenny@oracle.com> > Signed-off-by: Li Qiang <liq3ea@gmail.com> > --- > > Change since v2: detailed commit message > > Change since v1: use error_abort in object_property_set_link() > > hw/i386/pc.c | 3 ++- > hw/i386/vmmouse.c | 17 +++++++++++------ > 2 files changed, 13 insertions(+), 7 deletions(-) > > diff --git a/hw/i386/pc.c b/hw/i386/pc.c > index 73c7b777a0..64f0f233b8 100644 > --- a/hw/i386/pc.c > +++ b/hw/i386/pc.c > @@ -1552,7 +1552,8 @@ static void pc_superio_init(ISABus *isa_bus, bool create_fdctrl, bool no_vmport) > } > if (vmmouse) { > DeviceState *dev = DEVICE(vmmouse); > - qdev_prop_set_ptr(dev, "ps2_mouse", i8042); > + object_property_set_link(OBJECT(dev), OBJECT(i8042), > + "ps2_mouse", &error_abort); > qdev_init_nofail(dev); > } > port92 = isa_create_simple(isa_bus, TYPE_PORT92); > diff --git a/hw/i386/vmmouse.c b/hw/i386/vmmouse.c > index 4412eaf604..f63aac6673 100644 > --- a/hw/i386/vmmouse.c > +++ b/hw/i386/vmmouse.c > @@ -27,6 +27,7 @@ > #include "hw/i386/pc.h" > #include "hw/input/i8042.h" > #include "hw/qdev.h" > +#include "qapi/error.h" > > /* debug only vmmouse */ > //#define DEBUG_VMMOUSE > @@ -271,10 +272,15 @@ static void vmmouse_realizefn(DeviceState *dev, Error **errp) > vmport_register(VMMOUSE_DATA, vmmouse_ioport_read, s); > } > > -static Property vmmouse_properties[] = { > - DEFINE_PROP_PTR("ps2_mouse", VMMouseState, ps2_mouse), > - DEFINE_PROP_END_OF_LIST(), > -}; > +static void vmmouse_instance_initfn(Object *obj) > +{ > + VMMouseState *s = VMMOUSE(obj); > + > + object_property_add_link(obj, "ps2_mouse", TYPE_I8042, > + (Object **)&s->ps2_mouse, > + qdev_prop_allow_set_link_before_realize, > + 0, &error_abort); > +} > > static void vmmouse_class_initfn(ObjectClass *klass, void *data) > { > @@ -283,8 +289,6 @@ static void vmmouse_class_initfn(ObjectClass *klass, void *data) > dc->realize = vmmouse_realizefn; > dc->reset = vmmouse_reset; > dc->vmsd = &vmstate_vmmouse; > - dc->props = vmmouse_properties; > - /* Reason: pointer property "ps2_mouse" */ > dc->user_creatable = false; "user_creatable = false" must have an justification comment. Can you keep 'Reason: link property "ps2_mouse"'? Eventually the maintainer taking this patch can fix this for you. With the comment: Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> > } > > @@ -292,6 +296,7 @@ static const TypeInfo vmmouse_info = { > .name = TYPE_VMMOUSE, > .parent = TYPE_ISA_DEVICE, > .instance_size = sizeof(VMMouseState), > + .instance_init = vmmouse_instance_initfn, > .class_init = vmmouse_class_initfn, > }; > >
Philippe Mathieu-Daudé <philmd@redhat.com> writes: > Hi Li, > > On 11/29/18 5:52 AM, Li Qiang wrote: >> According to qdev-properties.h, properties of pointer type should >> be avoided. Turn "ps2_mouse" into a link. >> >> Reviewed-by: Markus Armbruster <armbru@redhat.com> >> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> >> Signed-off-by: Li Qiang <liq3ea@gmail.com> >> --- [...] >> diff --git a/hw/i386/vmmouse.c b/hw/i386/vmmouse.c >> index 4412eaf604..f63aac6673 100644 >> --- a/hw/i386/vmmouse.c >> +++ b/hw/i386/vmmouse.c [...] >> @@ -283,8 +289,6 @@ static void vmmouse_class_initfn(ObjectClass *klass, void *data) >> dc->realize = vmmouse_realizefn; >> dc->reset = vmmouse_reset; >> dc->vmsd = &vmstate_vmmouse; >> - dc->props = vmmouse_properties; >> - /* Reason: pointer property "ps2_mouse" */ >> dc->user_creatable = false; > > "user_creatable = false" must have an justification comment. Correct. > Can you keep 'Reason: link property "ps2_mouse"'? Is this a valid reason? A pointer property is one, because it can only be set by code. > Eventually the maintainer taking this patch can fix this for you. > > With the comment: > Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> > >> } [...]
On 12/17/18 8:01 PM, Markus Armbruster wrote: > Philippe Mathieu-Daudé <philmd@redhat.com> writes: > >> Hi Li, >> >> On 11/29/18 5:52 AM, Li Qiang wrote: >>> According to qdev-properties.h, properties of pointer type should >>> be avoided. Turn "ps2_mouse" into a link. >>> >>> Reviewed-by: Markus Armbruster <armbru@redhat.com> >>> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> >>> Signed-off-by: Li Qiang <liq3ea@gmail.com> >>> --- > [...] >>> diff --git a/hw/i386/vmmouse.c b/hw/i386/vmmouse.c >>> index 4412eaf604..f63aac6673 100644 >>> --- a/hw/i386/vmmouse.c >>> +++ b/hw/i386/vmmouse.c > [...] >>> @@ -283,8 +289,6 @@ static void vmmouse_class_initfn(ObjectClass *klass, void *data) >>> dc->realize = vmmouse_realizefn; >>> dc->reset = vmmouse_reset; >>> dc->vmsd = &vmstate_vmmouse; >>> - dc->props = vmmouse_properties; >>> - /* Reason: pointer property "ps2_mouse" */ >>> dc->user_creatable = false; >> >> "user_creatable = false" must have an justification comment. > > Correct. > >> Can you keep 'Reason: link property "ps2_mouse"'? > > Is this a valid reason? > > A pointer property is one, because it can only be set by code. I prefer the original comment :) /* Reason: pointer property "ps2_mouse" */ >> Eventually the maintainer taking this patch can fix this for you. >> >> With the comment: >> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> >> >>> } > [...] >
Philippe Mathieu-Daudé <philmd@redhat.com> writes: > On 12/17/18 8:01 PM, Markus Armbruster wrote: >> Philippe Mathieu-Daudé <philmd@redhat.com> writes: >> >>> Hi Li, >>> >>> On 11/29/18 5:52 AM, Li Qiang wrote: >>>> According to qdev-properties.h, properties of pointer type should >>>> be avoided. Turn "ps2_mouse" into a link. >>>> >>>> Reviewed-by: Markus Armbruster <armbru@redhat.com> >>>> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> >>>> Signed-off-by: Li Qiang <liq3ea@gmail.com> >>>> --- >> [...] >>>> diff --git a/hw/i386/vmmouse.c b/hw/i386/vmmouse.c >>>> index 4412eaf604..f63aac6673 100644 >>>> --- a/hw/i386/vmmouse.c >>>> +++ b/hw/i386/vmmouse.c >> [...] >>>> @@ -283,8 +289,6 @@ static void vmmouse_class_initfn(ObjectClass *klass, void *data) >>>> dc->realize = vmmouse_realizefn; >>>> dc->reset = vmmouse_reset; >>>> dc->vmsd = &vmstate_vmmouse; >>>> - dc->props = vmmouse_properties; >>>> - /* Reason: pointer property "ps2_mouse" */ >>>> dc->user_creatable = false; >>> >>> "user_creatable = false" must have an justification comment. >> >> Correct. Aside: more ->user_creatable = false without a comment have crept in since I last swept them out. >>> Can you keep 'Reason: link property "ps2_mouse"'? >> >> Is this a valid reason? >> >> A pointer property is one, because it can only be set by code. > > I prefer the original comment :) > > /* Reason: pointer property "ps2_mouse" */ A pointer property can't be set by -device because there's no sane way to pick a value. Not true for a link property: it's value is a QOM path. But I'm not sure such setting of link properties has been implemented. If it isn't, then /* Reason: link property "ps2_mouse */ is perfect. If it isn, then it's wrong, possibly along with with dc->user_creatable = false. >>> Eventually the maintainer taking this patch can fix this for you. >>> >>> With the comment: >>> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> >>> >>>> } >> [...] >>
Markus Armbruster <armbru@redhat.com> 于2018年12月18日周二 下午3:10写道： > Philippe Mathieu-Daudé <philmd@redhat.com> writes: > > > On 12/17/18 8:01 PM, Markus Armbruster wrote: > >> Philippe Mathieu-Daudé <philmd@redhat.com> writes: > >> > >>> Hi Li, > >>> > >>> On 11/29/18 5:52 AM, Li Qiang wrote: > >>>> According to qdev-properties.h, properties of pointer type should > >>>> be avoided. Turn "ps2_mouse" into a link. > >>>> > >>>> Reviewed-by: Markus Armbruster <armbru@redhat.com> > >>>> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> > >>>> Signed-off-by: Li Qiang <liq3ea@gmail.com> > >>>> --- > >> [...] > >>>> diff --git a/hw/i386/vmmouse.c b/hw/i386/vmmouse.c > >>>> index 4412eaf604..f63aac6673 100644 > >>>> --- a/hw/i386/vmmouse.c > >>>> +++ b/hw/i386/vmmouse.c > >> [...] > >>>> @@ -283,8 +289,6 @@ static void vmmouse_class_initfn(ObjectClass > *klass, void *data) > >>>> dc->realize = vmmouse_realizefn; > >>>> dc->reset = vmmouse_reset; > >>>> dc->vmsd = &vmstate_vmmouse; > >>>> - dc->props = vmmouse_properties; > >>>> - /* Reason: pointer property "ps2_mouse" */ > >>>> dc->user_creatable = false; > >>> > >>> "user_creatable = false" must have an justification comment. > >> > >> Correct. > > Aside: more ->user_creatable = false without a comment have crept in > since I last swept them out. > > >>> Can you keep 'Reason: link property "ps2_mouse"'? > >> > >> Is this a valid reason? > >> > >> A pointer property is one, because it can only be set by code. > > > > I prefer the original comment :) > > > > /* Reason: pointer property "ps2_mouse" */ > > A pointer property can't be set by -device because there's no sane way > to pick a value. Not true for a link property: it's value is a QOM > path. But I'm not sure such setting of link properties has been > implemented. If it isn't, then /* Reason: link property "ps2_mouse */ > is perfect. If it isn, then it's wrong, possibly along with with dc->user_creatable = false. > > Agree, AFAIK there is no way to set link property in '-device'. Anyway I think the maintainer can just merge or add this minor adjustment to the patch. Thanks, Li Qiang > >>> Eventually the maintainer taking this patch can fix this for you. > >>> > >>> With the comment: > >>> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> > >>> > >>>> } > >> [...] > >> >
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 73c7b777a0..64f0f233b8 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1552,7 +1552,8 @@ static void pc_superio_init(ISABus *isa_bus, bool create_fdctrl, bool no_vmport) } if (vmmouse) { DeviceState *dev = DEVICE(vmmouse); - qdev_prop_set_ptr(dev, "ps2_mouse", i8042); + object_property_set_link(OBJECT(dev), OBJECT(i8042), + "ps2_mouse", &error_abort); qdev_init_nofail(dev); } port92 = isa_create_simple(isa_bus, TYPE_PORT92); diff --git a/hw/i386/vmmouse.c b/hw/i386/vmmouse.c index 4412eaf604..f63aac6673 100644 --- a/hw/i386/vmmouse.c +++ b/hw/i386/vmmouse.c @@ -27,6 +27,7 @@ #include "hw/i386/pc.h" #include "hw/input/i8042.h" #include "hw/qdev.h" +#include "qapi/error.h" /* debug only vmmouse */ //#define DEBUG_VMMOUSE @@ -271,10 +272,15 @@ static void vmmouse_realizefn(DeviceState *dev, Error **errp) vmport_register(VMMOUSE_DATA, vmmouse_ioport_read, s); } -static Property vmmouse_properties[] = { - DEFINE_PROP_PTR("ps2_mouse", VMMouseState, ps2_mouse), - DEFINE_PROP_END_OF_LIST(), -}; +static void vmmouse_instance_initfn(Object *obj) +{ + VMMouseState *s = VMMOUSE(obj); + + object_property_add_link(obj, "ps2_mouse", TYPE_I8042, + (Object **)&s->ps2_mouse, + qdev_prop_allow_set_link_before_realize, + 0, &error_abort); +} static void vmmouse_class_initfn(ObjectClass *klass, void *data) { @@ -283,8 +289,6 @@ static void vmmouse_class_initfn(ObjectClass *klass, void *data) dc->realize = vmmouse_realizefn; dc->reset = vmmouse_reset; dc->vmsd = &vmstate_vmmouse; - dc->props = vmmouse_properties; - /* Reason: pointer property "ps2_mouse" */ dc->user_creatable = false; } @@ -292,6 +296,7 @@ static const TypeInfo vmmouse_info = { .name = TYPE_VMMOUSE, .parent = TYPE_ISA_DEVICE, .instance_size = sizeof(VMMouseState), + .instance_init = vmmouse_instance_initfn, .class_init = vmmouse_class_initfn, };