All of lore.kernel.org
 help / color / mirror / Atom feed
From: Gerd Hoffmann <kraxel@redhat.com>
To: Markus Armbruster <armbru@redhat.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>,
	qemu-devel@nongnu.org, kvm@vger.kernel.org, xudong.hao@intel.com,
	aliguori@us.ibm.com, paul@codesourcery.com
Subject: Re: [PATCH] device-assignment: Rework "name" of assigned pci device
Date: Fri, 02 Jul 2010 11:24:39 +0200	[thread overview]
Message-ID: <4C2DB057.3090305@redhat.com> (raw)
In-Reply-To: <m3iq4yqp9i.fsf@blackfin.pond.sub.org>

   Hi,

> As far as I can tell, "name" predates the qdev conversion, and was used
> just for error messages and such.

Yes, was already there when I touched the code the first time.

> It defaulted to "host".  When Gerd
> did the qdev conversion, he made "id" default to "name", then "host".
> See commit 6b5bbd04.
>
> Defaulting "id" that way was probably not such a good idea.  We
> generally don't make up qdev IDs, because that risks collision with
> user-specified IDs.
>
> Since we've broken compatibility already, I figure we could just as well
> stop defaulting "id" to "host".  When we need to identify the device to
> the user, use "id" if it exists, else its PCI address.

Agree, we should not make up defaults for 'id'.  I did that in a few 
places where some naming existed already to ease transition.  nics with 
name= used to get that as default id too.  But in the end it turned out 
it caused more trouble than it helped ...

cheers,
   Gerd


WARNING: multiple messages have this Message-ID (diff)
From: Gerd Hoffmann <kraxel@redhat.com>
To: Markus Armbruster <armbru@redhat.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>,
	kvm@vger.kernel.org, xudong.hao@intel.com, qemu-devel@nongnu.org,
	aliguori@us.ibm.com, paul@codesourcery.com
Subject: [Qemu-devel] Re: [PATCH] device-assignment: Rework "name" of assigned pci device
Date: Fri, 02 Jul 2010 11:24:39 +0200	[thread overview]
Message-ID: <4C2DB057.3090305@redhat.com> (raw)
In-Reply-To: <m3iq4yqp9i.fsf@blackfin.pond.sub.org>

   Hi,

> As far as I can tell, "name" predates the qdev conversion, and was used
> just for error messages and such.

Yes, was already there when I touched the code the first time.

> It defaulted to "host".  When Gerd
> did the qdev conversion, he made "id" default to "name", then "host".
> See commit 6b5bbd04.
>
> Defaulting "id" that way was probably not such a good idea.  We
> generally don't make up qdev IDs, because that risks collision with
> user-specified IDs.
>
> Since we've broken compatibility already, I figure we could just as well
> stop defaulting "id" to "host".  When we need to identify the device to
> the user, use "id" if it exists, else its PCI address.

Agree, we should not make up defaults for 'id'.  I did that in a few 
places where some naming existed already to ease transition.  nics with 
name= used to get that as default id too.  But in the end it turned out 
it caused more trouble than it helped ...

cheers,
   Gerd

  reply	other threads:[~2010-07-02  9:25 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-28  2:37 [PATCH] device-assignment: Rework "name" of assigned pci device Hidetoshi Seto
2010-06-28  2:37 ` [Qemu-devel] " Hidetoshi Seto
2010-06-29  5:28 ` Markus Armbruster
2010-06-29  5:28   ` [Qemu-devel] " Markus Armbruster
2010-06-29  7:33   ` Hidetoshi Seto
2010-06-29  7:33     ` [Qemu-devel] " Hidetoshi Seto
2010-06-30  6:53     ` Markus Armbruster
2010-06-30  6:53       ` [Qemu-devel] " Markus Armbruster
2010-06-30 10:05       ` Hidetoshi Seto
2010-06-30 10:05         ` [Qemu-devel] " Hidetoshi Seto
2010-07-02  8:08         ` Markus Armbruster
2010-07-02  8:08           ` [Qemu-devel] " Markus Armbruster
2010-07-02  9:24           ` Gerd Hoffmann [this message]
2010-07-02  9:24             ` Gerd Hoffmann

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4C2DB057.3090305@redhat.com \
    --to=kraxel@redhat.com \
    --cc=aliguori@us.ibm.com \
    --cc=armbru@redhat.com \
    --cc=kvm@vger.kernel.org \
    --cc=paul@codesourcery.com \
    --cc=qemu-devel@nongnu.org \
    --cc=seto.hidetoshi@jp.fujitsu.com \
    --cc=xudong.hao@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.