On 11/01/2012 04:30 PM, Eric Blake wrote:
> On 11/01/2012 04:22 PM, Doug Goldstein wrote:
>> On Thu, Nov 1, 2012 at 5:15 PM, Doug Goldstein <cardoe@xxxxxxxxxx> wrote:
>>> Per the code comment in qemuCapsInitQMPBasic() and Eric, we
>>> should only use QMP for capabilities probing starting with 1.2 and
>>> newer.
>>> ---
>>> src/qemu/qemu_capabilities.c | 2 +-
>>> 1 files changed, 1 insertions(+), 1 deletions(-)
>>>
>>> diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
>>> index 271273c..64c0bea 100644
>>> --- a/src/qemu/qemu_capabilities.c
>>> +++ b/src/qemu/qemu_capabilities.c
>>> @@ -2314,7 +2314,7 @@ qemuCapsInitQMP(qemuCapsPtr caps,
>>> VIR_DEBUG("Got version %d.%d.%d (%s)",
>>> major, minor, micro, NULLSTR(package));
>>>
>>> - if (!(major >= 1 || (major == 1 && minor >= 1))) {
>>> + if (!(major >= 1 || (major == 1 && minor >= 2))) {
Your change is a no-op. If major >= 1, then the second arm of the || is
irrelevant. If major < 1, then the second arm of the || is always false
because major != 1, without ever looking at minor.
>> Ignore this. I had a complete and utter brain melt down and committed
>> what I was tinkering with.
>
> Actually, your patch looks like it makes sense, and should get in before
> the 1.0.0 release.
>
> ACK.
>
> I hate the negative logic though; I'd almost rather see:
>
> if (major < 1 || (major == 1 && minor < 2))
This, however, IS what what we want, so I modified your commit, added my
sign-off, and pushed.
--
Eric Blake eblake@xxxxxxxxxx +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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