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From: Peter Maydell <peter.maydell@linaro.org>
To: Markus Armbruster <armbru@redhat.com>
Cc: "Marc-André Lureau" <marcandre.lureau@gmail.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	QEMU <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH v6 1/5] qobject: ensure base is at offset 0
Date: Tue, 24 Apr 2018 13:34:27 +0100	[thread overview]
Message-ID: <CAFEAcA-ynm85eJ9Q7F8mtYNNiUBY+BQQcCdEg_eAdfmVTD4GRw@mail.gmail.com> (raw)
In-Reply-To: <87po2ohk68.fsf@dusky.pond.sub.org>

On 24 April 2018 at 13:18, Markus Armbruster <armbru@redhat.com> wrote:
> We define hundreds of QOM types without ever bothering to check the
> super type comes first.  We don't even bother to clearly document it has
> to come first.

If you don't put the super type first then the first time you
do MyParent *p = MY_PARENT(me); then the QOM cast will assert
on you, so you'll figure it out pretty quickly...

thanks
-- PMM

  reply	other threads:[~2018-04-24 12:34 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-19 15:01 [Qemu-devel] [PATCH v6 0/5] Simplify qobject refcount Marc-André Lureau
2018-04-19 15:01 ` [Qemu-devel] [PATCH v6 1/5] qobject: ensure base is at offset 0 Marc-André Lureau
2018-04-19 15:20   ` Eric Blake
2018-04-19 15:23     ` Marc-André Lureau
2018-04-24 12:18       ` Markus Armbruster
2018-04-24 12:34         ` Peter Maydell [this message]
2018-04-24 15:24           ` Markus Armbruster
2018-04-26 14:50         ` Markus Armbruster
2018-04-27  8:14   ` Markus Armbruster
2018-04-19 15:01 ` [Qemu-devel] [PATCH v6 2/5] qobject: use a QObjectBase_ struct Marc-André Lureau
2018-04-27  8:24   ` Markus Armbruster
2018-04-27 15:29     ` Eric Blake
2018-04-19 15:01 ` [Qemu-devel] [PATCH v6 3/5] qobject: replace qobject_incref/QINCREF qobject_decref/QDECREF Marc-André Lureau
2018-04-19 15:27   ` Eric Blake
2018-04-27  8:59     ` Markus Armbruster
2018-04-19 15:01 ` [Qemu-devel] [PATCH v6 4/5] qobject: modify qobject_ref() to return obj Marc-André Lureau
2018-04-19 15:32   ` Eric Blake
2018-04-27 11:42     ` Markus Armbruster
2018-05-02 13:28       ` Eric Blake
2018-05-02 14:14         ` Markus Armbruster
2018-04-27  8:50   ` Markus Armbruster
2018-04-19 15:01 ` [Qemu-devel] [PATCH v6 5/5] qobject: modify qobject_ref() to assert on NULL Marc-André Lureau
2018-04-19 15:39   ` Eric Blake
2018-04-19 16:04     ` Marc-André Lureau
2018-04-19 15:45 ` [Qemu-devel] [PATCH v6 0/5] Simplify qobject refcount Eric Blake
2018-04-19 16:02   ` Marc-André Lureau
2018-05-02  8:31 ` Markus Armbruster

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