Re: [Qemu-devel] [PATCH v5 4/6] qdev: Add a function to rename busses

[Alistair Francis <alistair.francis@xilinx.com>]

On Wed, Dec 16, 2015 at 2:36 PM, Peter Crosthwaite
<crosthwaitepeter@gmail.com> wrote:
> On Wed, Dec 16, 2015 at 1:45 PM, Alistair Francis
> <alistair.francis@xilinx.com> wrote:
>> Add a function which can be used to rename busses.
>>
>> Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
>> ---
>>
>>  hw/core/qdev.c         | 5 +++++
>>  include/hw/qdev-core.h | 2 ++
>>  2 files changed, 7 insertions(+)
>>
>> diff --git a/hw/core/qdev.c b/hw/core/qdev.c
>> index b3ad467..29a3e9d 100644
>> --- a/hw/core/qdev.c
>> +++ b/hw/core/qdev.c
>> @@ -590,6 +590,11 @@ BusState *qdev_get_child_bus(DeviceState *dev, const char *name)
>>      return NULL;
>>  }
>>
>> +void qdev_bus_rename(BusState *bus, const char *name)
>> +{
>> +        memcpy((char *) bus->name, name, strlen(name) * sizeof(char));
>
> sizeof(char) not needed, but wont this assume the current name is long
> enough to hold the new name? Should name just be strduped and the old
> name freed?

You are right, that is better.

I will update it to use strdup() and I will also move the function
inside xlnx-zynqmp.c as requested by Paolo.

I'll give it a day to see if there are any other comments before
sending it out again.

Thanks,

Alistair

>
> Regards,
> Peter
>
>> +}
>> +
>>  int qbus_walk_children(BusState *bus,
>>                         qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn,
>>                         qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn,
>> diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
>> index c537969..9653f4d 100644
>> --- a/include/hw/qdev-core.h
>> +++ b/include/hw/qdev-core.h
>> @@ -297,6 +297,8 @@ qemu_irq qdev_intercept_gpio_out(DeviceState *dev, qemu_irq icpt,
>>
>>  BusState *qdev_get_child_bus(DeviceState *dev, const char *name);
>>
>> +void qdev_bus_rename(BusState *bus, const char *name);
>> +
>>  /*** Device API.  ***/
>>
>>  /* Register device properties.  */
>> --
>> 2.5.0
>>
>