[PATCH] mm: z3fold: deprecated ZSWAP_ZPOOL_DEFAULT_Z3FOLD as well

[Arnd Bergmann <arnd@kernel.org>]

From: Arnd Bergmann <arnd@arndb.de>

Randconfig builds that use ZSWAP_ZPOOL_DEFAULT_Z3FOLD
now cause a harmless warning:

WARNING: unmet direct dependencies detected for Z3FOLD
  Depends on [n]: Z3FOLD_DEPRECATED [=n]
  Selected by [y]:
  - ZSWAP_ZPOOL_DEFAULT_Z3FOLD [=y] && ZSWAP [=y]

Avoid the warning by selecting Z3FOLD_DEPRECATED instead,
but rename this symbol to ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED
in the process so it no longer automatically gets used with
old defconfigs while still allowing users to select it
manually.

Fixes: c68c1bed014d ("mm: z3fold: deprecate CONFIG_Z3FOLD")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 mm/Kconfig | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/mm/Kconfig b/mm/Kconfig
index 7c9930bf8a9d..09aebca1cae3 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -146,12 +146,15 @@ config ZSWAP_ZPOOL_DEFAULT_ZBUD
 	help
 	  Use the zbud allocator as the default allocator.
 
-config ZSWAP_ZPOOL_DEFAULT_Z3FOLD
-	bool "z3fold"
-	select Z3FOLD
+config ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED
+	bool "z3foldi (DEPRECATED)"
+	select Z3FOLD_DEPRECATED
 	help
 	  Use the z3fold allocator as the default allocator.
 
+	  Deprecated and scheduled for removal in a few cycles,
+	  see CONFIG_Z3FOLD_DEPRECATED.
+
 config ZSWAP_ZPOOL_DEFAULT_ZSMALLOC
 	bool "zsmalloc"
 	select ZSMALLOC
@@ -163,7 +166,7 @@ config ZSWAP_ZPOOL_DEFAULT
        string
        depends on ZSWAP
        default "zbud" if ZSWAP_ZPOOL_DEFAULT_ZBUD
-       default "z3fold" if ZSWAP_ZPOOL_DEFAULT_Z3FOLD
+       default "z3fold" if ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED
        default "zsmalloc" if ZSWAP_ZPOOL_DEFAULT_ZSMALLOC
        default ""
 
-- 
2.39.2