linux-kernel - [PATCH 2/2] MIPS: generic: Set SPARSEMEM by default for 64BIT kernel

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Message-Id: <20231028-mm-v1-2-45377cd158cf@flygoat.com>
Date:   Sat, 28 Oct 2023 14:52:17 +0100
From:   Jiaxun Yang <jiaxun.yang@...goat.com>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: [PATCH 2/2] MIPS: generic: Set SPARSEMEM by default for 64BIT
 kernel

Select ARCH_SPARSEMEM_DEFAULT for 64bit generic kernel build,
as all platforms supported by 64bit generic kernel have a hole
in their address space.

Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
 arch/mips/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d12e8f3c1d08..fad05f699efd 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -133,6 +133,7 @@ choice
 
 config MIPS_GENERIC_KERNEL
 	bool "Generic board-agnostic MIPS kernel"
+	select ARCH_SPARSEMEM_DEFAULT if 64BIT
 	select MIPS_GENERIC
 	select BOOT_RAW
 	select BUILTIN_DTB

-- 
2.34.1