Re: [PATCH] Fix adding ports to OVS bridges without VLAN tags

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On Tue, Sep 04, 2012 at 09:03:22PM +0000, Kyle Mestery (kmestery) wrote:
> On Aug 31, 2012, at 9:09 AM, Daniel Veillard wrote:
> > On Fri, Aug 31, 2012 at 01:32:34PM +0000, Kyle Mestery (kmestery) wrote:
> >> On Aug 30, 2012, at 10:23 PM, Daniel Veillard wrote:
> >>> On Thu, Aug 30, 2012 at 04:38:06PM -0400, Kyle Mestery wrote:
> > [...]
> >>> Still there is something which looks wrong, if we don't have a profileID
> >>> why do we end up with "" instead of NULL ? I'm seeing various tests for
> >>> profileID[0] over conf/*.c and util/*.c , and that sounds wrong to me.
> >>> if there is no data, store NULL ! Then test for profileID instead of
> >>> profileID[0]. Then there is no risk of a crash because abscence of data
> >>> led to NULL instead of an empty string, the code is more resilient !
> >>> 
> >>> I expect a followup patch cleaning this up, but after 0.10.1 ...
> >>> thanks !
> >>> 
> >> Thanks Daniel, I'll work on the followup patch today.
> > 
> >  No hurry, because I just rolled 0.10.1 out so that won't make it
> > (and it's not urgent). Giving 0.10.1 a try would be nice too,
> > 
> >  thanks !
> > 
> > Daniel
> 
> 
> Hi Daniel:
> 
> Picking this back up. struct _virNetDevVPortProfile  contains the following:
> 
>     /* this member is used when virtPortType == 802.1Qbh|openvswitch */
>     /* this is a null-terminated character string */
>     char          profileID[LIBVIRT_IFLA_VF_PORT_PROFILE_MAX];
> 
> To address your comments around checking for profileID[0], we could make
> profileID here a pointer, and allocate it when we allocate a struct _virNetDevVPortProfile
> object. But to me, having a fixed length string in this structure doesn't seem wrong.
> Copying Laine here as well for his comments, but I'm inclined to leave things as they
> are.

  Hum ... okay,

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
daniel@xxxxxxxxxxxx  | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library  http://libvirt.org/

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