linux-kernel - [PATCH] mips: Select SPARSEMEM_EXTREME for CAVIUM_OCTEON

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Message-Id: <20220906095943.60296-2-alexander.sverdlin@nokia.com>
Date:   Tue,  6 Sep 2022 11:59:42 +0200
From:   Alexander A Sverdlin <alexander.sverdlin@...ia.com>
To:     linux-mips@...r.kernel.org
Cc:     Alexander Sverdlin <alexander.sverdlin@...ia.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mips: Select SPARSEMEM_EXTREME for CAVIUM_OCTEON_SOC

From: Alexander Sverdlin <alexander.sverdlin@...ia.com>

Commit c46173183657 ("MIPS: Add NUMA support for Loongson-3") has increased
.bss size of the Octeon kernel from 16k to 16M. Providing the conditions
for SPARSEMEM_EXTREME avoids the waste of memory.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@...ia.com>
---
 arch/mips/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ec21f89..79cfa1c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2669,7 +2669,7 @@ config ARCH_FLATMEM_ENABLE
 
 config ARCH_SPARSEMEM_ENABLE
 	bool
-	select SPARSEMEM_STATIC if !SGI_IP27
+	select SPARSEMEM_STATIC if MACH_LOONGSON64
 
 config NUMA
 	bool "NUMA Support"
-- 
2.10.2