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Re: [libvirt] [PATCH] qemu: Add controllers in specified order



On 11/01/2012 08:11 AM, Michal Privoznik wrote:
> qemu is sensitive to the order of arguments passed. Hence, if a
> device requires a controller, the controller cmd string must
> precede device cmd string. The same apply for controllers, when
> for instance ccid controller requires usb controller. So
> controllers create partial ordering in which they should be added
> to qemu cmd line.
> ---
> 
> The order is basically random for now, with one constraint:
> CCID must be preceded with USB.
> 
>  src/qemu/qemu_command.c |  102 +++++++++++++++++++++++++---------------------
>  1 files changed, 55 insertions(+), 47 deletions(-)

Shouldn't we have at least one test under tests/qemuxml2argvdata that is
impacted by this new ordering?  And if not, we should add such a test.

The patch is a bit hard to read, because it reindents at the same time
as adding only a couple lines of code.  I find it easier to split these
types of patches into two - one that adds the new code but doesn't
reindent, and a followup that fixes indentation; or the reverse order of
adding a {} group to reindent with no semantic change, followed by the
patch that adds the actual feature.  That said, the code looks right,
but I'd still like to see a testcase proving it before giving ack.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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