[PATCH] mm/kconfig: Drop redundant memory hotplug dependencies

[Kaitao Cheng]

From: Kaitao Cheng <chengkaitao@xxxxxxxxxx>

MHP_MEMMAP_ON_MEMORY is defined inside the MEMORY_HOTPLUG block, and
MEMORY_HOTPLUG already depends on SPARSEMEM_VMEMMAP. Keep the explicit
MEMORY_HOTPLUG dependency for local readability, but drop the redundant
SPARSEMEM_VMEMMAP dependency.

ZONE_DEVICE depends on MEMORY_HOTREMOVE, which depends on MEMORY_HOTPLUG.
MEMORY_HOTPLUG in turn depends on SPARSEMEM_VMEMMAP. Drop the direct
MEMORY_HOTPLUG and SPARSEMEM_VMEMMAP dependencies from ZONE_DEVICE.

This does not change the set of valid configurations.

Signed-off-by: Kaitao Cheng <chengkaitao@xxxxxxxxxx>
---
 mm/Kconfig | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/Kconfig b/mm/Kconfig
index 04fe5171bb8c..ff29f770d10a 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -596,7 +596,7 @@ config MEMORY_HOTREMOVE
 
 config MHP_MEMMAP_ON_MEMORY
 	def_bool y
-	depends on MEMORY_HOTPLUG && SPARSEMEM_VMEMMAP
+	depends on MEMORY_HOTPLUG
 	depends on ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE
 
 endif # MEMORY_HOTPLUG
@@ -1235,9 +1235,7 @@ config ZONE_DMA32
 
 config ZONE_DEVICE
 	bool "Device memory (pmem, HMM, etc...) hotplug support"
-	depends on MEMORY_HOTPLUG
 	depends on MEMORY_HOTREMOVE
-	depends on SPARSEMEM_VMEMMAP
 	select XARRAY_MULTI
 
 	help
-- 
2.50.1 (Apple Git-155)