Re: [Qemu-devel] [PATCH for-4.0 v9 09/16] qemu_thread: supplement error handling for pci_edu_realize

[Fei Li]

在 2019/1/11 上午10:49, Peter Xu 写道:
> On Thu, Jan 10, 2019 at 09:29:38PM +0800, Fei Li wrote:
> > 在 2019/1/8 下午4:43, Markus Armbruster 写道:
> > > Peter Xu <address@hidden> writes:
> > >
> > > > On Tue, Jan 08, 2019 at 07:14:11AM +0100, Jiri Slaby wrote:
> > > > > On 07. 01. 19, 18:29, Markus Armbruster wrote:
> > > > > >      static void pci_edu_uninit(PCIDevice *pdev)
> > > > > >      {
> > > > > >          EduState *edu = EDU(pdev);
> > > > > >
> > > > > >          qemu_mutex_lock(&edu->thr_mutex);
> > > > > >          edu->stopping = true;
> > > > > >          qemu_mutex_unlock(&edu->thr_mutex);
> > > > > >          qemu_cond_signal(&edu->thr_cond);
> > > > > >          qemu_thread_join(&edu->thread);
> > > > > >
> > > > > >          qemu_cond_destroy(&edu->thr_cond);
> > > > > >          qemu_mutex_destroy(&edu->thr_mutex);
> > > > > >
> > > > > >          timer_del(&edu->dma_timer);
> > > > > >      }
> > > > > >
> > > > > > Preexisting: pci_edu_uninit() neglects to call msi_uninit().  Jiri?\
> > > > > I don't know, the MSI support was added in:
> > > > > commit eabb5782f70b4a10975b24ccd7129929a05ac932
> > > > > Author: Peter Xu <address@hidden>
> > > > > Date:   Wed Sep 28 21:03:39 2016 +0800
> > > > >
> > > > >       hw/misc/edu: support MSI interrupt
> > > > >
> > > > > Hence CCing Peter.
> > > > Hi, Jiri, Markus, Fei,
> > > >
> > > > IMHO msi_uninit() is optional since it only operates on the config
> > > > space of the device to remove the capability or fix up the flags
> > > > without really doing any real destruction of objects so nothing will
> > > > be leaked (unlike msix_uninit, which should be required).
> > > Michael, Marcel, is neglecting to call msi_uninit() okay, a harmless
> > > bug, or a harmful bug?
> > Kindly ping. :)
> >
> > If corresponding change is needed, I'd like to do the update in the next
> > version.
> Fei,
>
> If you're going to post the edu patch, please post it as a standalone
> patch.  More patches mean harder that the series could be accepted
> quickly.  So it would be good to split patches sometimes especially if
> they are irrelevant.
>
> Regards,
Ok, thanks for this helpful suggestion. Will send this patch alone in 
the next version. :)

Have a nice day
Fei