linux-kernel - [tip: x86/urgent] x86/Kconfig: Always enable ARCH_SPARSEMEM

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Message-ID: <174288817228.14745.8439055529176907969.tip-bot2@tip-bot2>
Date: Tue, 25 Mar 2025 07:36:12 -0000
From:
 tip-bot2 for Mateusz Jończyk <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: mat.jonczyk@...pl, David Heideberg <david@...t.cz>,
 Ingo Molnar <mingo@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
 Linus Torvalds <torvalds@...ux-foundation.org>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: x86/urgent] x86/Kconfig: Always enable ARCH_SPARSEMEM_ENABLE

The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     31be5041dca37a67c11042678c55804e964e5145
Gitweb:        https://git.kernel.org/tip/31be5041dca37a67c11042678c55804e964e5145
Author:        Mateusz Jończyk <mat.jonczyk@...pl>
AuthorDate:    Fri, 21 Mar 2025 21:48:44 +01:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Sat, 22 Mar 2025 08:02:16 +01:00

x86/Kconfig: Always enable ARCH_SPARSEMEM_ENABLE

It appears that (X86_64 || X86_32) is always true on x86.

This logical OR directive was introduced in:

  6ea3038648da ("arch/x86: remove depends on CONFIG_EXPERIMENTAL")

By (EXPERIMENTAL && X86_32) turning into (X86_32). Since
this change was an identity transformation, nobody noticed
that the condition turned into 'true'.

[ mingo: Updated changelog ]

Fixes: 6ea3038648da ("arch/x86: remove depends on CONFIG_EXPERIMENTAL")
Signed-off-by: Mateusz Jończyk <mat.jonczyk@...pl>
Signed-off-by: David Heideberg <david@...t.cz>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Link: https://lore.kernel.org/r/20250321-x86_x2apic-v3-2-b0cbaa6fa338@ixit.cz
---
 arch/x86/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 08bc939..442936d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1563,7 +1563,6 @@ config ARCH_FLATMEM_ENABLE

 config ARCH_SPARSEMEM_ENABLE
 	def_bool y
-	depends on X86_64 || NUMA || X86_32
 	select SPARSEMEM_STATIC if X86_32
 	select SPARSEMEM_VMEMMAP_ENABLE if X86_64