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Re: randconfig build error with next-20150908, in drivers/md/dm-mpath.c

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On Tue, Sep 08 2015 at  1:34pm -0400,
James Bottomley <jbottomley@odin.com> wrote:

> On Tue, 2015-09-08 at 13:23 -0400, Mike Snitzer wrote:
> > On Tue, Sep 08 2015 at  1:10pm -0400,
> > Jim Davis <jim.epost@gmail.com> wrote:
> > 
> > > Building with the attached random configuration file,
> > > 
> > > drivers/built-in.o: In function `activate_path':
> > > /home/jim/linux-next/drivers/md/dm-mpath.c:1225: undefined reference
> > > to `scsi_dh_activate'
> > > drivers/built-in.o: In function `parse_path':
> > > /home/jim/linux-next/drivers/md/dm-mpath.c:581: undefined reference to
> > > `scsi_dh_attached_handler_name'
> > > /home/jim/linux-next/drivers/md/dm-mpath.c:600: undefined reference to
> > > `scsi_dh_attach'
> > > /home/jim/linux-next/drivers/md/dm-mpath.c:615: undefined reference to
> > > `scsi_dh_set_params'
> > 
> > These DM-mpath changes were staged via linux-scsi.  Cc'ing James and Christoph.
> 
> [adding linux-scsi]
> 
> It must be Hannes' dm changes ... you acked them.  I take it the problem
> is now dm-mpath won't build without CONFIG_SCSI?  How do you want it
> fixed?  We can either add a Kconfig dependency or try to disentangle
> them again.

OK (Hannes' changes).  I'm fine with seeing DM_MULTIPATH depend on
CONFIG_SCSI.

The Kconfig for DM_MULTIPATH is clearly stale:

        # nasty syntax but means make DM_MULTIPATH independent
        # of SCSI_DH if the latter isn't defined but if
        # it is, DM_MULTIPATH must depend on it.  We get a build
        # error if SCSI_DH=m and DM_MULTIPATH=y
        depends on SCSI_DH || !SCSI_DH

James, if you have a vision for how to fix this please feel free.
Otherwise, Hannes, care to send a patch to fix this?

Thanks,
Mike
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Re: randconfig build error with next-20150908, in  drivers/md/dm-mpath.c Mike Snitzer <snitzer@redhat.com> - 2015-09-08 20:40 +0200
  Re: randconfig build error with next-20150908, in  drivers/md/dm-mpath.c Hannes Reinecke <hare@suse.de> - 2015-09-13 16:40 +0200

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