Re: [Qemu-devel] [PATCH] net: move rxfilter_notify() to net.c

[Vlad Yasevich <vyasevic@redhat.com>]

On 11/15/2013 10:27 AM, Stefan Hajnoczi wrote:
> On Tue, Nov 05, 2013 at 07:00:48PM +0800, Amos Kong wrote:
>> @@ -545,7 +523,7 @@ static int virtio_net_handle_rx_mode(VirtIONet *n, uint8_t cmd,
>>           return VIRTIO_NET_ERR;
>>       }
>>
>> -    rxfilter_notify(nc);
>> +    rxfilter_notify(nc, object_get_canonical_path(OBJECT(n->qdev)));
>>
>>       return VIRTIO_NET_OK;
>>   }
> [...]
>> diff --git a/net/net.c b/net/net.c
>> index c330c9a..f41a457 100644
>> --- a/net/net.c
>> +++ b/net/net.c
>> @@ -40,6 +40,7 @@
>>   #include "qapi-visit.h"
>>   #include "qapi/opts-visitor.h"
>>   #include "qapi/dealloc-visitor.h"
>> +#include "qapi/qmp/qjson.h"
>>
>>   /* Net bridge is currently not supported for W32. */
>>   #if !defined(_WIN32)
>> @@ -962,6 +963,25 @@ void print_net_client(Monitor *mon, NetClientState *nc)
>>                      nc->info_str);
>>   }
>>
>> +void rxfilter_notify(NetClientState *nc, const char *path)
>> +{
>> +    QObject *event_data;
>> +
>> +    if (nc->rxfilter_notify_enabled) {
>> +        if (nc->name) {
>> +            event_data = qobject_from_jsonf("{ 'name': %s, 'path': %s }",
>> +					    nc->name, path);
>> +        } else {
>> +            event_data = qobject_from_jsonf("{ 'path': %s }", path);
>> +        }
>> +        monitor_protocol_event(QEVENT_NIC_RX_FILTER_CHANGED, event_data);
>> +        qobject_decref(event_data);
>> +
>> +        /* disable event notification to avoid events flooding */
>> +        nc->rxfilter_notify_enabled = 0;
>> +    }
>> +}
>
> Please fix the memory leak:
> object_get_canonical_path() returns a gchar* that the caller must free.
>

Wow, this memory leak is all over the place and not just in this patch.

-vlad