mm: don't select MIGRATE_VMA_HELPER from HMM_MIRROR

Christoph Hellwig · jgunthorpe · commit b6b346a0665a · 2019-07-02T14:32:45.000-03:00
The migrate_vma helper is only used by noveau to migrate device private
pages around.  Other HMM_MIRROR users like amdgpu or infiniband don't
need it.

Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Reviewed-by: Jason Gunthorpe &lt;jgg@mellanox.com&gt;
Reviewed-by: Dan Williams &lt;dan.j.williams@intel.com&gt;
Signed-off-by: Jason Gunthorpe &lt;jgg@mellanox.com&gt;
diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig
@@ -88,6 +88,7 @@ config DRM_NOUVEAU_SVM
 	depends on DRM_NOUVEAU
 	depends on HMM_MIRROR
 	depends on STAGING
+	select MIGRATE_VMA_HELPER
 	default n
 	help
 	  Say Y here if you want to enable experimental support for
diff --git a/mm/Kconfig b/mm/Kconfig
@@ -680,7 +680,6 @@ config HMM_MIRROR
 	depends on (X86_64 || PPC64)
 	depends on MMU && 64BIT
 	select MMU_NOTIFIER
-	select MIGRATE_VMA_HELPER
 	help
 	  Select HMM_MIRROR if you want to mirror range of the CPU page table of a
 	  process into a device page table. Here, mirror means "keep synchronized".
