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Message-Id: <20200316023319.749-31-sashal@kernel.org>
Date: Sun, 15 Mar 2020 22:33:09 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Damien Le Moal <damien.lemoal@....com>,
Anup Patel <anup@...infault.org>,
Palmer Dabbelt <palmerdabbelt@...gle.com>,
Sasha Levin <sashal@...nel.org>,
linux-riscv@...ts.infradead.org
Subject: [PATCH AUTOSEL 5.5 31/41] riscv: Force flat memory model with no-mmu
From: Damien Le Moal <damien.lemoal@....com>
[ Upstream commit aa2734202acc506d09c8e641db4da161f902df27 ]
Compilation errors trigger if ARCH_SPARSEMEM_ENABLE is enabled for
a nommu kernel. Since the sparsemem model does not make sense anyway
for the nommu case, do not allow selecting this option to always use
the flatmem model.
Signed-off-by: Damien Le Moal <damien.lemoal@....com>
Reviewed-by: Anup Patel <anup@...infault.org>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@...gle.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@...gle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
arch/riscv/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index fa7dc03459e7f..1be11c23fa335 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -121,6 +121,7 @@ config ARCH_FLATMEM_ENABLE
config ARCH_SPARSEMEM_ENABLE
def_bool y
+ depends on MMU
select SPARSEMEM_VMEMMAP_ENABLE
config ARCH_SELECT_MEMORY_MODEL
--
2.20.1
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