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-rw-r--r--arch/arm/lib/copy_from_user.S25
1 files changed, 9 insertions, 16 deletions
diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
index 0d4c189c7f4f..270de7debd0f 100644
--- a/arch/arm/lib/copy_from_user.S
+++ b/arch/arm/lib/copy_from_user.S
@@ -1,13 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* linux/arch/arm/lib/copy_from_user.S
*
* Author: Nicolas Pitre
* Created: Sep 29, 2005
* Copyright: MontaVista Software, Inc.
- *
- * 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 <linux/linkage.h>
@@ -91,29 +88,25 @@
.endm
.macro str1b ptr reg cond=al abort
- str\cond\()b \reg, [\ptr], #1
+ strb\cond \reg, [\ptr], #1
.endm
- .macro enter reg1 reg2
+ .macro enter regs:vararg
mov r3, #0
- stmdb sp!, {r0, r2, r3, \reg1, \reg2}
- .endm
-
- .macro usave reg1 reg2
- UNWIND( .save {r0, r2, r3, \reg1, \reg2} )
+UNWIND( .save {r0, r2, r3, \regs} )
+ stmdb sp!, {r0, r2, r3, \regs}
.endm
- .macro exit reg1 reg2
+ .macro exit regs:vararg
add sp, sp, #8
- ldmfd sp!, {r0, \reg1, \reg2}
+ ldmfd sp!, {r0, \regs}
.endm
.text
ENTRY(arm_copy_from_user)
#ifdef CONFIG_CPU_SPECTRE
- get_thread_info r3
- ldr r3, [r3, #TI_ADDR_LIMIT]
+ ldr r3, =TASK_SIZE
uaccess_mask_range_ptr r1, r2, r3, ip
#endif
@@ -121,7 +114,7 @@ ENTRY(arm_copy_from_user)
ENDPROC(arm_copy_from_user)
- .pushsection .fixup,"ax"
+ .pushsection .text.fixup,"ax"
.align 0
copy_abort_preamble
ldmfd sp!, {r1, r2, r3}