Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 82ab015..9485acc 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/arch/arm/kernel/process.c
*
* Copyright (C) 1996-2000 Russell King - Converted to ARM.
* Original Copyright (C) 1995 Linus Torvalds
- *
- * 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.
*/
#include <stdarg.h>
@@ -39,7 +36,7 @@
#include <asm/tls.h>
#include <asm/vdso.h>
-#ifdef CONFIG_STACKPROTECTOR
+#if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_STACKPROTECTOR_PER_TASK)
#include <linux/stackprotector.h>
unsigned long __stack_chk_guard __read_mostly;
EXPORT_SYMBOL(__stack_chk_guard);
@@ -150,7 +147,7 @@
if ((domain & domain_mask(DOMAIN_USER)) ==
domain_val(DOMAIN_USER, DOMAIN_NOACCESS))
segment = "none";
- else if (fs == get_ds())
+ else if (fs == KERNEL_DS)
segment = "kernel";
else
segment = "user";
@@ -267,6 +264,10 @@
thread_notify(THREAD_NOTIFY_COPY, thread);
+#ifdef CONFIG_STACKPROTECTOR_PER_TASK
+ thread->stack_canary = p->stack_canary;
+#endif
+
return 0;
}
@@ -318,11 +319,6 @@
return 0;
}
-unsigned long arch_randomize_brk(struct mm_struct *mm)
-{
- return randomize_page(mm->brk, 0x02000000);
-}
-
#ifdef CONFIG_MMU
#ifdef CONFIG_KUSER_HELPERS
/*