Mao Zhongyi <maozy.f...@cn.fujitsu.com> writes:
> Hi, Eduardo
>
> On 06/06/2017 10:52 PM, Eduardo Habkost wrote:
>> On Tue, Jun 06, 2017 at 07:26:30PM +0800, Mao Zhongyi wrote:
>>> Add Error argument for pci_add_capability() to leverage the errp
>>> to pass info on errors. This way is helpful for its callers to
>>> make a better error handling when moving to 'realize'.
[...]
>>> diff --git a/hw/pci/pci.c b/hw/pci/pci.c
>>> index b73bfea..2bba37a 100644
>>> --- a/hw/pci/pci.c
>>> +++ b/hw/pci/pci.c
>>> @@ -2264,15 +2264,13 @@ static void pci_del_option_rom(PCIDevice *pdev)
>>> * in pci config space
>>> */
>>> int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
>>> - uint8_t offset, uint8_t size)
>>> + uint8_t offset, uint8_t size,
>>> + Error **errp)
>>> {
>>> int ret;
>>> - Error *local_err = NULL;
>>>
>>> - ret = pci_add_capability2(pdev, cap_id, offset, size, &local_err);
>>> - if (ret < 0) {
>>> - error_report_err(local_err);
>>> - }
>>> + ret = pci_add_capability2(pdev, cap_id, offset, size, errp);
>>> +
>>> return ret;
>>> }
>>
>> pci_add_capability() and pci_add_capability2() now do exactly the
>> same, why are both being kept? I suggest replacing
>> pci_add_capability2() with pci_add_capability() everywhere (on a
>> separate patch).
>>
>
> Completely remove pci_add_capability and direct use pci_add_capability2()
> everywhere is it a more thorough way?
You're converting pci_add_capability() to Error because you need the
Error for your conversions to realize().
I recommend to change the calls where you need the Error (and only
these) to call pci_add_capability2() instead.
When no calls to pci_add_capability() remain, we remove it. If that
becomes the case in your series, you remove it.
Okay?
