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mm-kconfig-drop-redundant-dependency-wrappers.patch removed from -mm tree

merged mm-stable Andrew Morton 1 participant 1 message Aug 25

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The quilt patch titled
Subject: mm/kconfig: drop redundant dependency wrappers
has been removed from the -mm tree. Its filename was
mm-kconfig-drop-redundant-dependency-wrappers.patch

This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Kaitao Cheng <[email protected]>
Subject: mm/kconfig: drop redundant dependency wrappers
Date: Sun, 12 Jul 2026 17:33:26 +0800

Some mm Kconfig entries repeat dependencies that are already expressed by their surrounding blocks or menus.

The zsmalloc allocator options menu already depends on ZSMALLOC, so the outer if ZSMALLOC block does not add any extra constraint. MEMORY_HOTREMOVE and MHP_MEMMAP_ON_MEMORY are both inside the if MEMORY_HOTPLUG block, so their local depends on MEMORY_HOTPLUG entries are redundant.

PTE_MARKER_UFFD_WP is the only entry under if USERFAULTFD. Move the USERFAULTFD dependency into the symbol itself and combine it with the architecture support dependency.

This keeps the same visibility and defaults while avoiding duplicate dependency expressions.

Link https://lore.kernel.org/[email protected] open here
Signed-off-by Kaitao Cheng <[email protected]>
Suggested-by Julian Braha <[email protected]>
Reviewed-by Lorenzo Stoakes (ARM) <[email protected]>
Acked-by David Hildenbrand (Arm) <[email protected]>
Cc Liam R. Howlett <[email protected]>
Cc Michal Hocko <[email protected]>
Cc Mike Rapoport <[email protected]>
Cc Muchun Song <[email protected]>
Cc Suren Baghdasaryan <[email protected]>
Cc Vlastimil Babka <[email protected]>
Signed-off-by Andrew Morton <[email protected]>

---

 mm/Kconfig |   10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)
mm/Kconfig renamed from mm/Kconfig~mm-kconfig-drop-redundant-dependency-wrappers +1 -9
@@ -125,8 +125,6 @@ config ZSWAP_COMPRESSOR_DEFAULT
 config ZSMALLOC
 	tristate
 
-if ZSMALLOC
-
 menu "Zsmalloc allocator options"
 	depends on ZSMALLOC
 

@@ -161,8 +159,6 @@ config ZSMALLOC_CHAIN_SIZE
 
 endmenu
 
-endif
-
 menu "Slab allocator options"
 
 config SLUB

@@ -583,12 +579,10 @@ endchoice
 
 config MEMORY_HOTREMOVE
 	bool "Allow for memory hot remove"
-	depends on MEMORY_HOTPLUG
 	select MIGRATION
 
 config MHP_MEMMAP_ON_MEMORY
 	def_bool y
-	depends on MEMORY_HOTPLUG
 	depends on ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE
 
 endif # MEMORY_HOTPLUG

@@ -1393,17 +1387,15 @@ menuconfig USERFAULTFD
 	  Enable the userfaultfd() system call that allows to intercept and
 	  handle page faults in userland.
 
-if USERFAULTFD
 config PTE_MARKER_UFFD_WP
 	bool "Userfaultfd write protection support for shmem/hugetlbfs"
 	default y
-	depends on HAVE_ARCH_USERFAULTFD_WP
+	depends on USERFAULTFD && HAVE_ARCH_USERFAULTFD_WP
 
 	help
 	  Allows to create marker PTEs for userfaultfd write protection
 	  purposes.  It is required to enable userfaultfd write protection on
 	  file-backed memory types like shmem and hugetlbfs.
-endif # USERFAULTFD
 
 # multi-gen LRU {
 config LRU_GEN

_

Patches currently in -mm which might be from [email protected] are