Re: [PATCH v2 2/8] conf: add node_device_event handling

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On 08/03/2016 05:37 PM, Cole Robinson wrote:
> On 08/03/2016 09:40 AM, John Ferlan wrote:
>>
>>
>> On 07/28/2016 08:02 AM, Jovanka Gulicoska wrote:
>>> Add node device event handling infrastructure to node_device_event.[ch]
>>> ---
>>>  src/Makefile.am              |   5 +
>>>  src/conf/node_device_event.c | 234 +++++++++++++++++++++++++++++++++++++++++++
>>>  src/conf/node_device_event.h |  59 +++++++++++
>>>  src/libvirt_private.syms     |   5 +
>>>  4 files changed, 303 insertions(+)
>>>  create mode 100644 src/conf/node_device_event.c
>>>  create mode 100644 src/conf/node_device_event.h
>>>
>>
>> [...]
>>
>>> diff --git a/src/conf/node_device_event.c b/src/conf/node_device_event.c
>>> new file mode 100644
>>> index 0000000..61bc912
>>
>> [...]
>>
>>> +
>>> +/**
>>> + * virNodeDeviceEventLifecycleNew:
>>> + * @name: name of the node device object the event describes
>>> + * @type: type of lifecycle event
>>> + * @detail: more details about @type
>>> + *
>>> + * Create a new node device lifecycle event.
>>> + */
>>> +virObjectEventPtr
>>> +virNodeDeviceEventLifecycleNew(const char *name,
>>> +                               int type,
>>> +                               int detail)
>>> +{
>>> +    virNodeDeviceEventLifecyclePtr event;
>>> +
>>> +    if (virNodeDeviceEventsInitialize() < 0)
>>> +        return NULL;
>>> +
>>> +    if (!(event = virObjectEventNew(virNodeDeviceEventLifecycleClass,
>>> +                                    virNodeDeviceEventDispatchDefaultFunc,
>>> +                                    VIR_NODE_DEVICE_EVENT_ID_LIFECYCLE,
>>> +                                    0, name, NULL, name)))
>>                                                 ^^^^
>>
>> This has caused a Coverity build failure since the prototype has:
>>
>> ATTRIBUTE_NONNULL(6)
>>
> 
> I think just dropping it is fine? The code was updated to handle uuid=NULL
> 
> diff --git a/src/conf/object_event_private.h b/src/conf/object_event_private.h
> index 92c25d4..27b461f 100644
> --- a/src/conf/object_event_private.h
> +++ b/src/conf/object_event_private.h
> @@ -106,6 +106,6 @@ virObjectEventNew(virClassPtr klass,
>                    const unsigned char *uuid,
>                    const char *key)
>      ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(5)
> -    ATTRIBUTE_NONNULL(6) ATTRIBUTE_NONNULL(7);
> +    ATTRIBUTE_NONNULL(7);
> 
>  #endif
> 
>> It gets even worse in the function and needs to be resolved before the
>> "next" release.
>>
> 
> I can't parse this sentence... are there additional issues?
> 
virObjectEventNew(...,const unsigned char *uuid,...)
...
    memcpy(event->meta.uuid, uuid, VIR_UUID_BUFLEN);
...

e.g.
    memcpy(event->meta.uuid, NULL, VIR_UUID_BUFLEN);


John

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