linux-kernel - [RFC PATCH V3 38/43] rv64ilp32_abi: syscall: Use CONFIG_64BIT instead of BITS_PER

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Message-Id: <20250325121624.523258-39-guoren@kernel.org>
Date: Tue, 25 Mar 2025 08:16:19 -0400
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Subject: [RFC PATCH V3 38/43] rv64ilp32_abi: syscall: Use CONFIG_64BIT instead of BITS_PER_LONG

From: "Guo Ren (Alibaba DAMO Academy)" <guoren@...nel.org>

The RV64ILP32 ABI adopts the syscall rules from CONFIG_64BIT and
directly uses 64BIT, replacing BITS_PER_LONG representation.

Signed-off-by: Guo Ren (Alibaba DAMO Academy) <guoren@...nel.org>
---
 arch/riscv/include/asm/syscall_table.h | 2 +-
 arch/riscv/include/asm/unistd.h        | 4 ++--
 scripts/checksyscalls.sh               | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/riscv/include/asm/syscall_table.h b/arch/riscv/include/asm/syscall_table.h
index 0c2d61782813..aab2bc0ddf4e 100644
--- a/arch/riscv/include/asm/syscall_table.h
+++ b/arch/riscv/include/asm/syscall_table.h
@@ -1,6 +1,6 @@
 #include <asm/bitsperlong.h>
 
-#if __BITS_PER_LONG == 64
+#ifdef CONFIG_64BIT
 #include <asm/syscall_table_64.h>
 #else
 #include <asm/syscall_table_32.h>
diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h
index e6d904fa67c5..86b9c1712f24 100644
--- a/arch/riscv/include/asm/unistd.h
+++ b/arch/riscv/include/asm/unistd.h
@@ -16,10 +16,10 @@
 #define __ARCH_WANT_COMPAT_FADVISE64_64
 #endif
 
-#if defined(__LP64__) && !defined(__SYSCALL_COMPAT)
+#if defined(CONFIG_64BIT) && !defined(__SYSCALL_COMPAT)
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_SET_GET_RLIMIT
-#endif /* __LP64__ */
+#endif /* CONFIG_64BIT */
 
 #define __ARCH_WANT_MEMFD_SECRET
 
diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index 1e5d2eeb726d..9cc4f9086dfe 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -76,7 +76,7 @@ cat << EOF
 #endif
 
 /* System calls for 32-bit kernels only */
-#if BITS_PER_LONG == 64
+#ifdef CONFIG_64BIT
 #define __IGNORE_sendfile64
 #define __IGNORE_ftruncate64
 #define __IGNORE_truncate64
-- 
2.40.1