On Wed, Sep 09 2015 at 12:04pm -0400, Christoph Hellwig <hch@xxxxxx> wrote: > Does this fix the issue for you? My Kconfig-fu isn't the best, > but the idea behind this is that dm-mpath will depend on SCSI > if SCSI_DH is set. If SCSI_DH is not set it will use the stubs > and not care about SCSI. > > diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig > index b597273..e9ea681 100644 > --- a/drivers/md/Kconfig > +++ b/drivers/md/Kconfig > @@ -393,7 +393,7 @@ config DM_MULTIPATH > # 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 > + depends on !SCSI_DH || SCSI > ---help--- > Allow volume managers to support multipath hardware. > I verified (with next-20150911) that without your patch I saw the reported problem using the provided randconfig (that had CONFIG_SCSI_DH=y and CONFIG_DM_MULTIPATH=y): drivers/built-in.o: In function `activate_path': /root/snitm/git/linux/drivers/md/dm-mpath.c:1225: undefined reference to `scsi_dh_activate' drivers/built-in.o: In function `parse_path': /root/snitm/git/linux/drivers/md/dm-mpath.c:581: undefined reference to `scsi_dh_attached_handler_name' /root/snitm/git/linux/drivers/md/dm-mpath.c:600: undefined reference to `scsi_dh_attach' /root/snitm/git/linux/drivers/md/dm-mpath.c:615: undefined reference to `scsi_dh_set_params' make: *** [vmlinux] Error 1 But with your patch the build completes successfully. James, please feel free to pull in Christoph's patch and add my: Tested-by: Mike Snitzer <snitzer@xxxxxxxxxx> -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
