Re: [Qemu-devel] [PATCH for-2.12] hmp.c: Revert hmp_info_cpus output format

[Cornelia Huck <cohuck@redhat.com>]

On Tue, 27 Mar 2018 08:59:04 -0500
Eric Blake <eblake@redhat.com> wrote:

> On 03/27/2018 07:38 AM, sathnaga@linux.vnet.ibm.com wrote:
> > From: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
> > 
> > This commit 137b5cb6ab565cb3781d5337591e155932b4230e
> > refactors info cpus output and changes output format from
> > 'thread_id' to 'thread-id', this would break parsing
> > of output in above layers like libvirt, test framework etc.
> > 
> > This patch just reverts back output format to 'thread_id'.
> > 
> > CC: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
> > Signed-off-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
> > ---
> >   hmp.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)  
> 
> I'm not opposed to this patch (because it is a trivial way to keep older 
> stuff working), but agree with Daniel that HMP output can change at any 
> time, so other stuff relying on HMP should be fixed.  Libvirt is not 
> affected, so if we DO take this into 2.12, we should update the commit 
> message to drop mention of libvirt being impacted, maybe along the lines of:
> 
> Commit 137b5cb6 refactored 'info cpus' output, changing 'thread_id' to 
> 'thread-id'.  While HMP is not a stable interface, it is trivial to keep 
> the spelling consistent for test frameworks that have not yet updated to 
> using QMP.
> 
> With the improved commit message,
> Reviewed-by: Eric Blake <eblake@redhat.com>
> 

Yes, that certainly makes sense.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>