+ arch-kconfig-fix-dead-conditions-by-removing-dead-options.patch added to mm-nonmm-unstable branch

+ arch-kconfig-fix-dead-conditions-by-removing-dead-options.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: arch/Kconfig: fix dead conditions by removing dead options
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     arch-kconfig-fix-dead-conditions-by-removing-dead-options.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/arch-kconfig-fix-dead-conditions-by-removing-dead-options.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Julian Braha <julianbraha@gmail.com>
Subject: arch/Kconfig: fix dead conditions by removing dead options
Date: Mon, 31 Aug 2026 00:00:16 +0100

These two 'int' options:

ARCH_MMAP_RND_BITS_DEFAULT
ARCH_MMAP_RND_COMPAT_BITS_DEFAULT

are used directly as conditions for defaults. 'int' options should not be
used as conditions, because they will always evaluate to false.

Let's remove these options, because they are not used anywhere else.

This dead code was found by kconfirm, a static analysis tool for Kconfig.

Link: https://lore.kernel.org/20260830230016.2730093-1-julianbraha@gmail.com
Signed-off-by: Julian Braha <julianbraha@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/Kconfig |    8 --------
 1 file changed, 8 deletions(-)

--- a/arch/Kconfig~arch-kconfig-fix-dead-conditions-by-removing-dead-options
+++ a/arch/Kconfig
@@ -1238,13 +1238,9 @@ config ARCH_MMAP_RND_BITS_MIN
 config ARCH_MMAP_RND_BITS_MAX
 	int
 
-config ARCH_MMAP_RND_BITS_DEFAULT
-	int
-
 config ARCH_MMAP_RND_BITS
 	int "Number of bits to use for ASLR of mmap base address" if EXPERT
 	range ARCH_MMAP_RND_BITS_MIN ARCH_MMAP_RND_BITS_MAX
-	default ARCH_MMAP_RND_BITS_DEFAULT if ARCH_MMAP_RND_BITS_DEFAULT
 	default ARCH_MMAP_RND_BITS_MIN
 	depends on HAVE_ARCH_MMAP_RND_BITS
 	help
@@ -1272,13 +1268,9 @@ config ARCH_MMAP_RND_COMPAT_BITS_MIN
 config ARCH_MMAP_RND_COMPAT_BITS_MAX
 	int
 
-config ARCH_MMAP_RND_COMPAT_BITS_DEFAULT
-	int
-
 config ARCH_MMAP_RND_COMPAT_BITS
 	int "Number of bits to use for ASLR of mmap base address for compatible applications" if EXPERT
 	range ARCH_MMAP_RND_COMPAT_BITS_MIN ARCH_MMAP_RND_COMPAT_BITS_MAX
-	default ARCH_MMAP_RND_COMPAT_BITS_DEFAULT if ARCH_MMAP_RND_COMPAT_BITS_DEFAULT
 	default ARCH_MMAP_RND_COMPAT_BITS_MIN
 	depends on HAVE_ARCH_MMAP_RND_COMPAT_BITS
 	help
_

Patches currently in -mm which might be from julianbraha@gmail.com are

lib-cleanup-fake-tristates-in-kconfig.patch
arch-kconfig-fix-dead-conditions-by-removing-dead-options.patch