From 10ebd8556b7990499c896a550e3d416b444211e6 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 02:23:07 +0000
Subject: [PATCH] add led
---
kernel/arch/arm64/kernel/sys_compat.c | 27 ++++++---------------------
1 files changed, 6 insertions(+), 21 deletions(-)
diff --git a/kernel/arch/arm64/kernel/sys_compat.c b/kernel/arch/arm64/kernel/sys_compat.c
index 3ef9d0a..2df3cd4 100644
--- a/kernel/arch/arm64/kernel/sys_compat.c
+++ b/kernel/arch/arm64/kernel/sys_compat.c
@@ -1,21 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Based on arch/arm/kernel/sys_arm.c
*
* Copyright (C) People who wrote linux/arch/i386/kernel/sys_i386.c
* Copyright (C) 1995, 1996 Russell King.
* Copyright (C) 2012 ARM Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/compat.h>
@@ -69,7 +58,7 @@
if (end < start || flags)
return -EINVAL;
- if (!access_ok(VERIFY_READ, (const void __user *)start, end - start))
+ if (!access_ok((const void __user *)start, end - start))
return -EFAULT;
return __do_compat_cache_op(start, end);
@@ -79,7 +68,7 @@
*/
long compat_arm_syscall(struct pt_regs *regs, int scno)
{
- siginfo_t info;
+ unsigned long addr;
switch (scno) {
/*
@@ -122,13 +111,9 @@
break;
}
- clear_siginfo(&info);
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_ILLTRP;
- info.si_addr = (void __user *)instruction_pointer(regs) -
- (compat_thumb_mode(regs) ? 2 : 4);
+ addr = instruction_pointer(regs) - (compat_thumb_mode(regs) ? 2 : 4);
- arm64_notify_die("Oops - bad compat syscall(2)", regs, &info, scno);
+ arm64_notify_die("Oops - bad compat syscall(2)", regs,
+ SIGILL, ILL_ILLTRP, addr, 0);
return 0;
}
--
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