[RFC PATCH 1/4] riscv: Optimize satp_mode data type

[guoren at kernel.org]

From: Guo Ren <guoren at linux.alibaba.com>

Fixup satp_mode data type. Use ulong instead of u64 for rv32
compatibility. Because the u64 type didn't cause any real problem, make
it as optimized.

Signed-off-by: Guo Ren <guoren at linux.alibaba.com>
Signed-off-by: Guo Ren <guoren at kernel.org>
---
 arch/riscv/include/asm/pgtable.h | 2 +-
 arch/riscv/mm/init.c             | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 1d1be9d9419c..edc68759b69d 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -833,7 +833,7 @@ extern uintptr_t _dtb_early_pa;
 #define dtb_early_va	_dtb_early_va
 #define dtb_early_pa	_dtb_early_pa
 #endif /* CONFIG_XIP_KERNEL */
-extern u64 satp_mode;
+extern ulong satp_mode;
 extern bool pgtable_l4_enabled;
 
 void paging_init(void);
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index d466ec670e1f..eea147b1a617 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 __ro_after_init = !IS_ENABLED(CONFIG_XIP_KERNEL) ? SATP_MODE_57 : SATP_MODE_39;
+ulong satp_mode __ro_after_init = !IS_ENABLED(CONFIG_XIP_KERNEL) ? SATP_MODE_57 : SATP_MODE_39;
 #else
-u64 satp_mode __ro_after_init = SATP_MODE_32;
+ulong satp_mode __ro_after_init = SATP_MODE_32;
 #endif
 EXPORT_SYMBOL(satp_mode);
 
-- 
2.36.1