[PATCH] riscv: mm: init: mark satp_mode __ro_after_init

From: Jisheng Zhang <jszhang@kernel.org>
To: Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] riscv: mm: init: mark satp_mode __ro_after_init
Date: Wed, 26 Jan 2022 00:00:12 +0800	[thread overview]
Message-ID: <20220125160012.3884-1-jszhang@kernel.org> (raw)

satp_mode is never modified after init, so it can be marked as
__ro_after_init.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 arch/riscv/mm/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 8347d0fda8cd..35586688a1b6 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -38,9 +38,9 @@ EXPORT_SYMBOL(kernel_map);
 #endif
 
 #ifdef CONFIG_64BIT
-u64 satp_mode = !IS_ENABLED(CONFIG_XIP_KERNEL) ? SATP_MODE_48 : SATP_MODE_39;
+u64 satp_mode __ro_after_init = !IS_ENABLED(CONFIG_XIP_KERNEL) ? SATP_MODE_48 : SATP_MODE_39;
 #else
-u64 satp_mode = SATP_MODE_32;
+u64 satp_mode __ro_after_init = SATP_MODE_32;
 #endif
 EXPORT_SYMBOL(satp_mode);
 
-- 
2.34.1


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