From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio

---
 kernel/tools/arch/x86/include/uapi/asm/unistd.h |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/kernel/tools/arch/x86/include/uapi/asm/unistd.h b/kernel/tools/arch/x86/include/uapi/asm/unistd.h
index 30d7d04..be5e2e7 100644
--- a/kernel/tools/arch/x86/include/uapi/asm/unistd.h
+++ b/kernel/tools/arch/x86/include/uapi/asm/unistd.h
@@ -2,7 +2,14 @@
 #ifndef _UAPI_ASM_X86_UNISTD_H
 #define _UAPI_ASM_X86_UNISTD_H
 
-/* x32 syscall flag bit */
+/*
+ * x32 syscall flag bit.  Some user programs expect syscall NR macros
+ * and __X32_SYSCALL_BIT to have type int, even though syscall numbers
+ * are, for practical purposes, unsigned long.
+ *
+ * Fortunately, expressions like (nr & ~__X32_SYSCALL_BIT) do the right
+ * thing regardless.
+ */
 #define __X32_SYSCALL_BIT	0x40000000
 
 #ifndef __KERNEL__

--
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