diff mbox

[QEMU-PPC,V5,2/7] target/ppc/spapr_caps: Add macro to generate spapr_caps migration vmstate

Message ID 20180119050005.29392-3-sjitindarsingh@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Suraj Jitindar Singh Jan. 19, 2018, 5 a.m. UTC
The vmstate description and the contained needed function for migration
of spapr_caps is the same for each cap, with the name of the cap
substituted. As such introduce a macro to allow for easier generation of
these.

Convert the three existing spapr_caps (htm, vsx, and dfp) to use this
macro.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>

---

V5:
 - Patch added to series
---
 hw/ppc/spapr_caps.c | 78 +++++++++++++++++------------------------------------
 1 file changed, 24 insertions(+), 54 deletions(-)

Comments

David Gibson Jan. 19, 2018, 5:09 a.m. UTC | #1
On Fri, Jan 19, 2018 at 04:00:00PM +1100, Suraj Jitindar Singh wrote:
> The vmstate description and the contained needed function for migration
> of spapr_caps is the same for each cap, with the name of the cap
> substituted. As such introduce a macro to allow for easier generation of
> these.
> 
> Convert the three existing spapr_caps (htm, vsx, and dfp) to use this
> macro.
> 
> Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>

Applied to ppc-for-2.12, thanks.

> 
> ---
> 
> V5:
>  - Patch added to series
> ---
>  hw/ppc/spapr_caps.c | 78 +++++++++++++++++------------------------------------
>  1 file changed, 24 insertions(+), 54 deletions(-)
> 
> diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
> index d5c9ce774a..5d52969bd5 100644
> --- a/hw/ppc/spapr_caps.c
> +++ b/hw/ppc/spapr_caps.c
> @@ -228,62 +228,32 @@ int spapr_caps_post_migration(sPAPRMachineState *spapr)
>      return ok ? 0 : -EINVAL;
>  }
>  
> -static bool spapr_cap_htm_needed(void *opaque)
> -{
> -    sPAPRMachineState *spapr = opaque;
> -
> -    return spapr->cmd_line_caps[SPAPR_CAP_HTM] &&
> -           (spapr->eff.caps[SPAPR_CAP_HTM] != spapr->def.caps[SPAPR_CAP_HTM]);
> -}
> -
> -const VMStateDescription vmstate_spapr_cap_htm = {
> -    .name = "spapr/cap/htm",
> -    .version_id = 1,
> -    .minimum_version_id = 1,
> -    .needed = spapr_cap_htm_needed,
> -    .fields = (VMStateField[]) {
> -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_HTM], sPAPRMachineState),
> -        VMSTATE_END_OF_LIST()
> -    },
> -};
> -
> -static bool spapr_cap_vsx_needed(void *opaque)
> -{
> -    sPAPRMachineState *spapr = opaque;
> -
> -    return spapr->cmd_line_caps[SPAPR_CAP_VSX] &&
> -           (spapr->eff.caps[SPAPR_CAP_VSX] != spapr->def.caps[SPAPR_CAP_VSX]);
> +/* Used to generate the migration field and needed function for a spapr cap */
> +#define SPAPR_CAP_MIG_STATE(cap, ccap)                  \
> +static bool spapr_cap_##cap##_needed(void *opaque)      \
> +{                                                       \
> +    sPAPRMachineState *spapr = opaque;                  \
> +                                                        \
> +    return spapr->cmd_line_caps[SPAPR_CAP_##ccap] &&    \
> +           (spapr->eff.caps[SPAPR_CAP_##ccap] !=        \
> +            spapr->def.caps[SPAPR_CAP_##ccap]);         \
> +}                                                       \
> +                                                        \
> +const VMStateDescription vmstate_spapr_cap_##cap = {    \
> +    .name = "spapr/cap/" #cap,                          \
> +    .version_id = 1,                                    \
> +    .minimum_version_id = 1,                            \
> +    .needed = spapr_cap_##cap##_needed,                 \
> +    .fields = (VMStateField[]) {                        \
> +        VMSTATE_UINT8(mig.caps[SPAPR_CAP_##ccap],       \
> +                      sPAPRMachineState),               \
> +        VMSTATE_END_OF_LIST()                           \
> +    },                                                  \
>  }
>  
> -const VMStateDescription vmstate_spapr_cap_vsx = {
> -    .name = "spapr/cap/vsx",
> -    .version_id = 1,
> -    .minimum_version_id = 1,
> -    .needed = spapr_cap_vsx_needed,
> -    .fields = (VMStateField[]) {
> -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_VSX], sPAPRMachineState),
> -        VMSTATE_END_OF_LIST()
> -    },
> -};
> -
> -static bool spapr_cap_dfp_needed(void *opaque)
> -{
> -    sPAPRMachineState *spapr = opaque;
> -
> -    return spapr->cmd_line_caps[SPAPR_CAP_DFP] &&
> -           (spapr->eff.caps[SPAPR_CAP_DFP] != spapr->def.caps[SPAPR_CAP_DFP]);
> -}
> -
> -const VMStateDescription vmstate_spapr_cap_dfp = {
> -    .name = "spapr/cap/dfp",
> -    .version_id = 1,
> -    .minimum_version_id = 1,
> -    .needed = spapr_cap_dfp_needed,
> -    .fields = (VMStateField[]) {
> -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_DFP], sPAPRMachineState),
> -        VMSTATE_END_OF_LIST()
> -    },
> -};
> +SPAPR_CAP_MIG_STATE(htm, HTM);
> +SPAPR_CAP_MIG_STATE(vsx, VSX);
> +SPAPR_CAP_MIG_STATE(dfp, DFP);
>  
>  void spapr_caps_reset(sPAPRMachineState *spapr)
>  {
Alexey Kardashevskiy Jan. 19, 2018, 5:18 a.m. UTC | #2
On 19/01/18 16:00, Suraj Jitindar Singh wrote:
> The vmstate description and the contained needed function for migration
> of spapr_caps is the same for each cap, with the name of the cap
> substituted. As such introduce a macro to allow for easier generation of
> these.
> 
> Convert the three existing spapr_caps (htm, vsx, and dfp) to use this
> macro.
> 
> Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
> 
> ---
> 
> V5:
>  - Patch added to series
> ---
>  hw/ppc/spapr_caps.c | 78 +++++++++++++++++------------------------------------
>  1 file changed, 24 insertions(+), 54 deletions(-)
> 
> diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
> index d5c9ce774a..5d52969bd5 100644
> --- a/hw/ppc/spapr_caps.c
> +++ b/hw/ppc/spapr_caps.c
> @@ -228,62 +228,32 @@ int spapr_caps_post_migration(sPAPRMachineState *spapr)
>      return ok ? 0 : -EINVAL;
>  }
>  
> -static bool spapr_cap_htm_needed(void *opaque)
> -{
> -    sPAPRMachineState *spapr = opaque;
> -
> -    return spapr->cmd_line_caps[SPAPR_CAP_HTM] &&
> -           (spapr->eff.caps[SPAPR_CAP_HTM] != spapr->def.caps[SPAPR_CAP_HTM]);
> -}
> -
> -const VMStateDescription vmstate_spapr_cap_htm = {
> -    .name = "spapr/cap/htm",
> -    .version_id = 1,
> -    .minimum_version_id = 1,
> -    .needed = spapr_cap_htm_needed,
> -    .fields = (VMStateField[]) {
> -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_HTM], sPAPRMachineState),
> -        VMSTATE_END_OF_LIST()
> -    },
> -};
> -
> -static bool spapr_cap_vsx_needed(void *opaque)
> -{
> -    sPAPRMachineState *spapr = opaque;
> -
> -    return spapr->cmd_line_caps[SPAPR_CAP_VSX] &&
> -           (spapr->eff.caps[SPAPR_CAP_VSX] != spapr->def.caps[SPAPR_CAP_VSX]);
> +/* Used to generate the migration field and needed function for a spapr cap */
> +#define SPAPR_CAP_MIG_STATE(cap, ccap)                  \
> +static bool spapr_cap_##cap##_needed(void *opaque)      \
> +{                                                       \
> +    sPAPRMachineState *spapr = opaque;                  \
> +                                                        \
> +    return spapr->cmd_line_caps[SPAPR_CAP_##ccap] &&    \
> +           (spapr->eff.caps[SPAPR_CAP_##ccap] !=        \
> +            spapr->def.caps[SPAPR_CAP_##ccap]);         \
> +}                                                       \
> +                                                        \
> +const VMStateDescription vmstate_spapr_cap_##cap = {    \
> +    .name = "spapr/cap/" #cap,                          \
> +    .version_id = 1,                                    \
> +    .minimum_version_id = 1,                            \
> +    .needed = spapr_cap_##cap##_needed,                 \
> +    .fields = (VMStateField[]) {                        \
> +        VMSTATE_UINT8(mig.caps[SPAPR_CAP_##ccap],       \
> +                      sPAPRMachineState),               \
> +        VMSTATE_END_OF_LIST()                           \
> +    },                                                  \
>  }
>  
> -const VMStateDescription vmstate_spapr_cap_vsx = {
> -    .name = "spapr/cap/vsx",
> -    .version_id = 1,
> -    .minimum_version_id = 1,
> -    .needed = spapr_cap_vsx_needed,
> -    .fields = (VMStateField[]) {
> -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_VSX], sPAPRMachineState),
> -        VMSTATE_END_OF_LIST()
> -    },
> -};
> -
> -static bool spapr_cap_dfp_needed(void *opaque)
> -{
> -    sPAPRMachineState *spapr = opaque;
> -
> -    return spapr->cmd_line_caps[SPAPR_CAP_DFP] &&
> -           (spapr->eff.caps[SPAPR_CAP_DFP] != spapr->def.caps[SPAPR_CAP_DFP]);
> -}
> -
> -const VMStateDescription vmstate_spapr_cap_dfp = {
> -    .name = "spapr/cap/dfp",
> -    .version_id = 1,
> -    .minimum_version_id = 1,
> -    .needed = spapr_cap_dfp_needed,
> -    .fields = (VMStateField[]) {
> -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_DFP], sPAPRMachineState),
> -        VMSTATE_END_OF_LIST()
> -    },
> -};
> +SPAPR_CAP_MIG_STATE(htm, HTM);
> +SPAPR_CAP_MIG_STATE(vsx, VSX);
> +SPAPR_CAP_MIG_STATE(dfp, DFP);


A nit: I really dislike this kind of parameters which you cannot really
cscope/ctags for because they are joined to some other things.

"no matches found for cscope query g HTM of HTM" says vim's cscope when I
search for "HTM".


>  
>  void spapr_caps_reset(sPAPRMachineState *spapr)
>  {
>
Suraj Jitindar Singh Jan. 28, 2018, 11:43 p.m. UTC | #3
On Fri, 2018-01-19 at 16:18 +1100, Alexey Kardashevskiy wrote:
> On 19/01/18 16:00, Suraj Jitindar Singh wrote:
> > The vmstate description and the contained needed function for
> > migration
> > of spapr_caps is the same for each cap, with the name of the cap
> > substituted. As such introduce a macro to allow for easier
> > generation of
> > these.
> > 
> > Convert the three existing spapr_caps (htm, vsx, and dfp) to use
> > this
> > macro.
> > 
> > Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
> > 
> > ---
> > 
> > V5:
> >  - Patch added to series
> > ---
> >  hw/ppc/spapr_caps.c | 78 +++++++++++++++++----------------------
> > --------------
> >  1 file changed, 24 insertions(+), 54 deletions(-)
> > 
> > diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
> > index d5c9ce774a..5d52969bd5 100644
> > --- a/hw/ppc/spapr_caps.c
> > +++ b/hw/ppc/spapr_caps.c
> > @@ -228,62 +228,32 @@ int
> > spapr_caps_post_migration(sPAPRMachineState *spapr)
> >      return ok ? 0 : -EINVAL;
> >  }
> >  
> > -static bool spapr_cap_htm_needed(void *opaque)
> > -{
> > -    sPAPRMachineState *spapr = opaque;
> > -
> > -    return spapr->cmd_line_caps[SPAPR_CAP_HTM] &&
> > -           (spapr->eff.caps[SPAPR_CAP_HTM] != spapr-
> > >def.caps[SPAPR_CAP_HTM]);
> > -}
> > -
> > -const VMStateDescription vmstate_spapr_cap_htm = {
> > -    .name = "spapr/cap/htm",
> > -    .version_id = 1,
> > -    .minimum_version_id = 1,
> > -    .needed = spapr_cap_htm_needed,
> > -    .fields = (VMStateField[]) {
> > -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_HTM], sPAPRMachineState),
> > -        VMSTATE_END_OF_LIST()
> > -    },
> > -};
> > -
> > -static bool spapr_cap_vsx_needed(void *opaque)
> > -{
> > -    sPAPRMachineState *spapr = opaque;
> > -
> > -    return spapr->cmd_line_caps[SPAPR_CAP_VSX] &&
> > -           (spapr->eff.caps[SPAPR_CAP_VSX] != spapr-
> > >def.caps[SPAPR_CAP_VSX]);
> > +/* Used to generate the migration field and needed function for a
> > spapr cap */
> > +#define SPAPR_CAP_MIG_STATE(cap, ccap)                  \
> > +static bool spapr_cap_##cap##_needed(void *opaque)      \
> > +{                                                       \
> > +    sPAPRMachineState *spapr = opaque;                  \
> > +                                                        \
> > +    return spapr->cmd_line_caps[SPAPR_CAP_##ccap] &&    \
> > +           (spapr->eff.caps[SPAPR_CAP_##ccap] !=        \
> > +            spapr->def.caps[SPAPR_CAP_##ccap]);         \
> > +}                                                       \
> > +                                                        \
> > +const VMStateDescription vmstate_spapr_cap_##cap = {    \
> > +    .name = "spapr/cap/" #cap,                          \
> > +    .version_id = 1,                                    \
> > +    .minimum_version_id = 1,                            \
> > +    .needed = spapr_cap_##cap##_needed,                 \
> > +    .fields = (VMStateField[]) {                        \
> > +        VMSTATE_UINT8(mig.caps[SPAPR_CAP_##ccap],       \
> > +                      sPAPRMachineState),               \
> > +        VMSTATE_END_OF_LIST()                           \
> > +    },                                                  \
> >  }
> >  
> > -const VMStateDescription vmstate_spapr_cap_vsx = {
> > -    .name = "spapr/cap/vsx",
> > -    .version_id = 1,
> > -    .minimum_version_id = 1,
> > -    .needed = spapr_cap_vsx_needed,
> > -    .fields = (VMStateField[]) {
> > -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_VSX], sPAPRMachineState),
> > -        VMSTATE_END_OF_LIST()
> > -    },
> > -};
> > -
> > -static bool spapr_cap_dfp_needed(void *opaque)
> > -{
> > -    sPAPRMachineState *spapr = opaque;
> > -
> > -    return spapr->cmd_line_caps[SPAPR_CAP_DFP] &&
> > -           (spapr->eff.caps[SPAPR_CAP_DFP] != spapr-
> > >def.caps[SPAPR_CAP_DFP]);
> > -}
> > -
> > -const VMStateDescription vmstate_spapr_cap_dfp = {
> > -    .name = "spapr/cap/dfp",
> > -    .version_id = 1,
> > -    .minimum_version_id = 1,
> > -    .needed = spapr_cap_dfp_needed,
> > -    .fields = (VMStateField[]) {
> > -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_DFP], sPAPRMachineState),
> > -        VMSTATE_END_OF_LIST()
> > -    },
> > -};
> > +SPAPR_CAP_MIG_STATE(htm, HTM);
> > +SPAPR_CAP_MIG_STATE(vsx, VSX);
> > +SPAPR_CAP_MIG_STATE(dfp, DFP);
> 
> 
> A nit: I really dislike this kind of parameters which you cannot
> really
> cscope/ctags for because they are joined to some other things.
> 
> "no matches found for cscope query g HTM of HTM" says vim's cscope
> when I
> search for "HTM".

Would something like:
SPAPR_CAP_MIG_STATE(htm, SPAPR_CAP_HTM);
SPAPR_CAP_MIG_STATE(htm, SPAPR_CAP_VSX);
SPAPR_CAP_MIG_STATE(htm, SPAPR_CAP_DFP);

be better?
I could send a follow up

> 
> 
> >  
> >  void spapr_caps_reset(sPAPRMachineState *spapr)
> >  {
> > 
> 
>
Alexey Kardashevskiy Jan. 29, 2018, 3:03 a.m. UTC | #4
On 29/01/18 10:43, Suraj Jitindar Singh wrote:
> On Fri, 2018-01-19 at 16:18 +1100, Alexey Kardashevskiy wrote:
>> On 19/01/18 16:00, Suraj Jitindar Singh wrote:
>>> The vmstate description and the contained needed function for
>>> migration
>>> of spapr_caps is the same for each cap, with the name of the cap
>>> substituted. As such introduce a macro to allow for easier
>>> generation of
>>> these.
>>>
>>> Convert the three existing spapr_caps (htm, vsx, and dfp) to use
>>> this
>>> macro.
>>>
>>> Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
>>>
>>> ---
>>>
>>> V5:
>>>  - Patch added to series
>>> ---
>>>  hw/ppc/spapr_caps.c | 78 +++++++++++++++++----------------------
>>> --------------
>>>  1 file changed, 24 insertions(+), 54 deletions(-)
>>>
>>> diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
>>> index d5c9ce774a..5d52969bd5 100644
>>> --- a/hw/ppc/spapr_caps.c
>>> +++ b/hw/ppc/spapr_caps.c
>>> @@ -228,62 +228,32 @@ int
>>> spapr_caps_post_migration(sPAPRMachineState *spapr)
>>>      return ok ? 0 : -EINVAL;
>>>  }
>>>  
>>> -static bool spapr_cap_htm_needed(void *opaque)
>>> -{
>>> -    sPAPRMachineState *spapr = opaque;
>>> -
>>> -    return spapr->cmd_line_caps[SPAPR_CAP_HTM] &&
>>> -           (spapr->eff.caps[SPAPR_CAP_HTM] != spapr-
>>>> def.caps[SPAPR_CAP_HTM]);
>>> -}
>>> -
>>> -const VMStateDescription vmstate_spapr_cap_htm = {
>>> -    .name = "spapr/cap/htm",
>>> -    .version_id = 1,
>>> -    .minimum_version_id = 1,
>>> -    .needed = spapr_cap_htm_needed,
>>> -    .fields = (VMStateField[]) {
>>> -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_HTM], sPAPRMachineState),
>>> -        VMSTATE_END_OF_LIST()
>>> -    },
>>> -};
>>> -
>>> -static bool spapr_cap_vsx_needed(void *opaque)
>>> -{
>>> -    sPAPRMachineState *spapr = opaque;
>>> -
>>> -    return spapr->cmd_line_caps[SPAPR_CAP_VSX] &&
>>> -           (spapr->eff.caps[SPAPR_CAP_VSX] != spapr-
>>>> def.caps[SPAPR_CAP_VSX]);
>>> +/* Used to generate the migration field and needed function for a
>>> spapr cap */
>>> +#define SPAPR_CAP_MIG_STATE(cap, ccap)                  \
>>> +static bool spapr_cap_##cap##_needed(void *opaque)      \
>>> +{                                                       \
>>> +    sPAPRMachineState *spapr = opaque;                  \
>>> +                                                        \
>>> +    return spapr->cmd_line_caps[SPAPR_CAP_##ccap] &&    \
>>> +           (spapr->eff.caps[SPAPR_CAP_##ccap] !=        \
>>> +            spapr->def.caps[SPAPR_CAP_##ccap]);         \
>>> +}                                                       \
>>> +                                                        \
>>> +const VMStateDescription vmstate_spapr_cap_##cap = {    \
>>> +    .name = "spapr/cap/" #cap,                          \
>>> +    .version_id = 1,                                    \
>>> +    .minimum_version_id = 1,                            \
>>> +    .needed = spapr_cap_##cap##_needed,                 \
>>> +    .fields = (VMStateField[]) {                        \
>>> +        VMSTATE_UINT8(mig.caps[SPAPR_CAP_##ccap],       \
>>> +                      sPAPRMachineState),               \
>>> +        VMSTATE_END_OF_LIST()                           \
>>> +    },                                                  \
>>>  }
>>>  
>>> -const VMStateDescription vmstate_spapr_cap_vsx = {
>>> -    .name = "spapr/cap/vsx",
>>> -    .version_id = 1,
>>> -    .minimum_version_id = 1,
>>> -    .needed = spapr_cap_vsx_needed,
>>> -    .fields = (VMStateField[]) {
>>> -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_VSX], sPAPRMachineState),
>>> -        VMSTATE_END_OF_LIST()
>>> -    },
>>> -};
>>> -
>>> -static bool spapr_cap_dfp_needed(void *opaque)
>>> -{
>>> -    sPAPRMachineState *spapr = opaque;
>>> -
>>> -    return spapr->cmd_line_caps[SPAPR_CAP_DFP] &&
>>> -           (spapr->eff.caps[SPAPR_CAP_DFP] != spapr-
>>>> def.caps[SPAPR_CAP_DFP]);
>>> -}
>>> -
>>> -const VMStateDescription vmstate_spapr_cap_dfp = {
>>> -    .name = "spapr/cap/dfp",
>>> -    .version_id = 1,
>>> -    .minimum_version_id = 1,
>>> -    .needed = spapr_cap_dfp_needed,
>>> -    .fields = (VMStateField[]) {
>>> -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_DFP], sPAPRMachineState),
>>> -        VMSTATE_END_OF_LIST()
>>> -    },
>>> -};
>>> +SPAPR_CAP_MIG_STATE(htm, HTM);
>>> +SPAPR_CAP_MIG_STATE(vsx, VSX);
>>> +SPAPR_CAP_MIG_STATE(dfp, DFP);
>>
>>
>> A nit: I really dislike this kind of parameters which you cannot
>> really
>> cscope/ctags for because they are joined to some other things.
>>
>> "no matches found for cscope query g HTM of HTM" says vim's cscope
>> when I
>> search for "HTM".
> 
> Would something like:
> SPAPR_CAP_MIG_STATE(htm, SPAPR_CAP_HTM);
> SPAPR_CAP_MIG_STATE(htm, SPAPR_CAP_VSX);
> SPAPR_CAP_MIG_STATE(htm, SPAPR_CAP_DFP);
> 
> be better?

It would indeed.

> I could send a follow up

Too late, David already merged :( And this seems to bother only me anyway.


> 
>>
>>
>>>  
>>>  void spapr_caps_reset(sPAPRMachineState *spapr)
>>>  {
>>>
>>
>>
Suraj Jitindar Singh Jan. 30, 2018, 6:19 a.m. UTC | #5
On Mon, 2018-01-29 at 14:03 +1100, Alexey Kardashevskiy wrote:
> On 29/01/18 10:43, Suraj Jitindar Singh wrote:
> > On Fri, 2018-01-19 at 16:18 +1100, Alexey Kardashevskiy wrote:
> > > On 19/01/18 16:00, Suraj Jitindar Singh wrote:
> > > > The vmstate description and the contained needed function for
> > > > migration
> > > > of spapr_caps is the same for each cap, with the name of the
> > > > cap
> > > > substituted. As such introduce a macro to allow for easier
> > > > generation of
> > > > these.
> > > > 
> > > > Convert the three existing spapr_caps (htm, vsx, and dfp) to
> > > > use
> > > > this
> > > > macro.
> > > > 
> > > > Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
> > > > 
> > > > ---
> > > > 
> > > > V5:
> > > >  - Patch added to series
> > > > ---
> > > >  hw/ppc/spapr_caps.c | 78 +++++++++++++++++------------------
> > > > ----
> > > > --------------
> > > >  1 file changed, 24 insertions(+), 54 deletions(-)
> > > > 
> > > > diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
> > > > index d5c9ce774a..5d52969bd5 100644
> > > > --- a/hw/ppc/spapr_caps.c
> > > > +++ b/hw/ppc/spapr_caps.c
> > > > @@ -228,62 +228,32 @@ int
> > > > spapr_caps_post_migration(sPAPRMachineState *spapr)
> > > >      return ok ? 0 : -EINVAL;
> > > >  }
> > > >  
> > > > -static bool spapr_cap_htm_needed(void *opaque)
> > > > -{
> > > > -    sPAPRMachineState *spapr = opaque;
> > > > -
> > > > -    return spapr->cmd_line_caps[SPAPR_CAP_HTM] &&
> > > > -           (spapr->eff.caps[SPAPR_CAP_HTM] != spapr-
> > > > > def.caps[SPAPR_CAP_HTM]);
> > > > 
> > > > -}
> > > > -
> > > > -const VMStateDescription vmstate_spapr_cap_htm = {
> > > > -    .name = "spapr/cap/htm",
> > > > -    .version_id = 1,
> > > > -    .minimum_version_id = 1,
> > > > -    .needed = spapr_cap_htm_needed,
> > > > -    .fields = (VMStateField[]) {
> > > > -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_HTM],
> > > > sPAPRMachineState),
> > > > -        VMSTATE_END_OF_LIST()
> > > > -    },
> > > > -};
> > > > -
> > > > -static bool spapr_cap_vsx_needed(void *opaque)
> > > > -{
> > > > -    sPAPRMachineState *spapr = opaque;
> > > > -
> > > > -    return spapr->cmd_line_caps[SPAPR_CAP_VSX] &&
> > > > -           (spapr->eff.caps[SPAPR_CAP_VSX] != spapr-
> > > > > def.caps[SPAPR_CAP_VSX]);
> > > > 
> > > > +/* Used to generate the migration field and needed function
> > > > for a
> > > > spapr cap */
> > > > +#define SPAPR_CAP_MIG_STATE(cap, ccap)                  \
> > > > +static bool spapr_cap_##cap##_needed(void *opaque)      \
> > > > +{                                                       \
> > > > +    sPAPRMachineState *spapr = opaque;                  \
> > > > +                                                        \
> > > > +    return spapr->cmd_line_caps[SPAPR_CAP_##ccap] &&    \
> > > > +           (spapr->eff.caps[SPAPR_CAP_##ccap] !=        \
> > > > +            spapr->def.caps[SPAPR_CAP_##ccap]);         \
> > > > +}                                                       \
> > > > +                                                        \
> > > > +const VMStateDescription vmstate_spapr_cap_##cap = {    \
> > > > +    .name = "spapr/cap/" #cap,                          \
> > > > +    .version_id = 1,                                    \
> > > > +    .minimum_version_id = 1,                            \
> > > > +    .needed = spapr_cap_##cap##_needed,                 \
> > > > +    .fields = (VMStateField[]) {                        \
> > > > +        VMSTATE_UINT8(mig.caps[SPAPR_CAP_##ccap],       \
> > > > +                      sPAPRMachineState),               \
> > > > +        VMSTATE_END_OF_LIST()                           \
> > > > +    },                                                  \
> > > >  }
> > > >  
> > > > -const VMStateDescription vmstate_spapr_cap_vsx = {
> > > > -    .name = "spapr/cap/vsx",
> > > > -    .version_id = 1,
> > > > -    .minimum_version_id = 1,
> > > > -    .needed = spapr_cap_vsx_needed,
> > > > -    .fields = (VMStateField[]) {
> > > > -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_VSX],
> > > > sPAPRMachineState),
> > > > -        VMSTATE_END_OF_LIST()
> > > > -    },
> > > > -};
> > > > -
> > > > -static bool spapr_cap_dfp_needed(void *opaque)
> > > > -{
> > > > -    sPAPRMachineState *spapr = opaque;
> > > > -
> > > > -    return spapr->cmd_line_caps[SPAPR_CAP_DFP] &&
> > > > -           (spapr->eff.caps[SPAPR_CAP_DFP] != spapr-
> > > > > def.caps[SPAPR_CAP_DFP]);
> > > > 
> > > > -}
> > > > -
> > > > -const VMStateDescription vmstate_spapr_cap_dfp = {
> > > > -    .name = "spapr/cap/dfp",
> > > > -    .version_id = 1,
> > > > -    .minimum_version_id = 1,
> > > > -    .needed = spapr_cap_dfp_needed,
> > > > -    .fields = (VMStateField[]) {
> > > > -        VMSTATE_UINT8(mig.caps[SPAPR_CAP_DFP],
> > > > sPAPRMachineState),
> > > > -        VMSTATE_END_OF_LIST()
> > > > -    },
> > > > -};
> > > > +SPAPR_CAP_MIG_STATE(htm, HTM);
> > > > +SPAPR_CAP_MIG_STATE(vsx, VSX);
> > > > +SPAPR_CAP_MIG_STATE(dfp, DFP);
> > > 
> > > 
> > > A nit: I really dislike this kind of parameters which you cannot
> > > really
> > > cscope/ctags for because they are joined to some other things.
> > > 
> > > "no matches found for cscope query g HTM of HTM" says vim's
> > > cscope
> > > when I
> > > search for "HTM".
> > 
> > Would something like:
> > SPAPR_CAP_MIG_STATE(htm, SPAPR_CAP_HTM);
> > SPAPR_CAP_MIG_STATE(htm, SPAPR_CAP_VSX);
> > SPAPR_CAP_MIG_STATE(htm, SPAPR_CAP_DFP);
> > 
> > be better?
> 
> It would indeed.
> 
> > I could send a follow up
> 
> Too late, David already merged :( And this seems to bother only me
> anyway.

I mean it's annoying anyway, I just didn't really think about it when
writing it. So might fix it up with another patch...

> 
> 
> > 
> > > 
> > > 
> > > >  
> > > >  void spapr_caps_reset(sPAPRMachineState *spapr)
> > > >  {
> > > > 
> > > 
> > > 
> 
>
diff mbox

Patch

diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
index d5c9ce774a..5d52969bd5 100644
--- a/hw/ppc/spapr_caps.c
+++ b/hw/ppc/spapr_caps.c
@@ -228,62 +228,32 @@  int spapr_caps_post_migration(sPAPRMachineState *spapr)
     return ok ? 0 : -EINVAL;
 }
 
-static bool spapr_cap_htm_needed(void *opaque)
-{
-    sPAPRMachineState *spapr = opaque;
-
-    return spapr->cmd_line_caps[SPAPR_CAP_HTM] &&
-           (spapr->eff.caps[SPAPR_CAP_HTM] != spapr->def.caps[SPAPR_CAP_HTM]);
-}
-
-const VMStateDescription vmstate_spapr_cap_htm = {
-    .name = "spapr/cap/htm",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .needed = spapr_cap_htm_needed,
-    .fields = (VMStateField[]) {
-        VMSTATE_UINT8(mig.caps[SPAPR_CAP_HTM], sPAPRMachineState),
-        VMSTATE_END_OF_LIST()
-    },
-};
-
-static bool spapr_cap_vsx_needed(void *opaque)
-{
-    sPAPRMachineState *spapr = opaque;
-
-    return spapr->cmd_line_caps[SPAPR_CAP_VSX] &&
-           (spapr->eff.caps[SPAPR_CAP_VSX] != spapr->def.caps[SPAPR_CAP_VSX]);
+/* Used to generate the migration field and needed function for a spapr cap */
+#define SPAPR_CAP_MIG_STATE(cap, ccap)                  \
+static bool spapr_cap_##cap##_needed(void *opaque)      \
+{                                                       \
+    sPAPRMachineState *spapr = opaque;                  \
+                                                        \
+    return spapr->cmd_line_caps[SPAPR_CAP_##ccap] &&    \
+           (spapr->eff.caps[SPAPR_CAP_##ccap] !=        \
+            spapr->def.caps[SPAPR_CAP_##ccap]);         \
+}                                                       \
+                                                        \
+const VMStateDescription vmstate_spapr_cap_##cap = {    \
+    .name = "spapr/cap/" #cap,                          \
+    .version_id = 1,                                    \
+    .minimum_version_id = 1,                            \
+    .needed = spapr_cap_##cap##_needed,                 \
+    .fields = (VMStateField[]) {                        \
+        VMSTATE_UINT8(mig.caps[SPAPR_CAP_##ccap],       \
+                      sPAPRMachineState),               \
+        VMSTATE_END_OF_LIST()                           \
+    },                                                  \
 }
 
-const VMStateDescription vmstate_spapr_cap_vsx = {
-    .name = "spapr/cap/vsx",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .needed = spapr_cap_vsx_needed,
-    .fields = (VMStateField[]) {
-        VMSTATE_UINT8(mig.caps[SPAPR_CAP_VSX], sPAPRMachineState),
-        VMSTATE_END_OF_LIST()
-    },
-};
-
-static bool spapr_cap_dfp_needed(void *opaque)
-{
-    sPAPRMachineState *spapr = opaque;
-
-    return spapr->cmd_line_caps[SPAPR_CAP_DFP] &&
-           (spapr->eff.caps[SPAPR_CAP_DFP] != spapr->def.caps[SPAPR_CAP_DFP]);
-}
-
-const VMStateDescription vmstate_spapr_cap_dfp = {
-    .name = "spapr/cap/dfp",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .needed = spapr_cap_dfp_needed,
-    .fields = (VMStateField[]) {
-        VMSTATE_UINT8(mig.caps[SPAPR_CAP_DFP], sPAPRMachineState),
-        VMSTATE_END_OF_LIST()
-    },
-};
+SPAPR_CAP_MIG_STATE(htm, HTM);
+SPAPR_CAP_MIG_STATE(vsx, VSX);
+SPAPR_CAP_MIG_STATE(dfp, DFP);
 
 void spapr_caps_reset(sPAPRMachineState *spapr)
 {