Re: [PATCH-for-5.2 v3 2/4] hw/9pfs: Fix Kconfig dependency problem between 9pfs and Xen

[Christian Schoenebeck <qemu_oss@xxxxxxxxxxxxx>]

On Donnerstag, 5. November 2020 13:23:46 CET Greg Kurz wrote:
> On Thu, 5 Nov 2020 13:15:59 +0100
> 
> Philippe Mathieu-Daudé <philmd@xxxxxxxxxx> wrote:
> > On 11/4/20 6:54 PM, Greg Kurz wrote:
> > > On Wed, 04 Nov 2020 13:18:09 +0100
> > > 
> > > Christian Schoenebeck <qemu_oss@xxxxxxxxxxxxx> wrote:
> > >> On Mittwoch, 4. November 2020 12:57:04 CET Philippe Mathieu-Daudé 
wrote:
> > >>> Commit b2c00bce54c ("meson: convert hw/9pfs, cleanup") introduced
> > >>> CONFIG_9PFS (probably a wrong conflict resolution). This config is
> > >>> not used anywhere. Backends depend on CONFIG_FSDEV_9P which itself
> > >>> depends on CONFIG_VIRTFS.
> > >>> 
> > >>> Remove the invalid CONFIG_9PFS and use CONFIG_FSDEV_9P instead, to
> > >>> 
> > >>> fix the './configure --without-default-devices --enable-xen' build:
> > >>>   /usr/bin/ld: libcommon.fa.p/hw_xen_xen-legacy-backend.c.o: in
> > >>>   function
> > >>> 
> > >>> `xen_be_register_common': hw/xen/xen-legacy-backend.c:754: undefined
> > >>> reference to `xen_9pfs_ops' /usr/bin/ld:
> > >>> libcommon.fa.p/fsdev_qemu-fsdev.c.o:(.data.rel+0x8): undefined
> > >>> reference to
> > >>> `local_ops' /usr/bin/ld:
> > >>> libcommon.fa.p/fsdev_qemu-fsdev.c.o:(.data.rel+0x20): undefined
> > >>> reference
> > >>> to `synth_ops' /usr/bin/ld:
> > >>> libcommon.fa.p/fsdev_qemu-fsdev.c.o:(.data.rel+0x38): undefined
> > >>> reference
> > >>> to `proxy_ops' collect2: error: ld returned 1 exit status
> > >>> 
> > >>> Fixes: b2c00bce54c ("meson: convert hw/9pfs, cleanup")
> > >>> Suggested-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> > >>> Acked-by: Greg Kurz <groug@xxxxxxxx>
> > >>> Tested-by: Greg Kurz <groug@xxxxxxxx>
> > >>> Signed-off-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
> > >> 
> > >> Acked-by: Christian Schoenebeck <qemu_oss@xxxxxxxxxxxxx>
> > > 
> > > Phil,
> > > 
> > > Same questioning as Connie. Do you intend to get this merged or should
> > > Christian or I take care of that ?
> > 
> > Same answer too =) If you are preparing a pull request, please go ahead!
> 
> Heh I've just seen your answer.
> 
> Christian,
> 
> Maybe you can add this patch in your next PR ?

Yes, I will prepare a 9p PR today anyway, so I will include this patch.

Best regards,
Christian Schoenebeck