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s390/vdso: Move vdso symbol handling to separate header file

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The vdso.h header file, which is included at many places, includes
generated header files. This can easily lead to recursive header file
inclusions if the vdso code is changed.

Therefore move the vdso symbol code, which requires the generated
header files, to a separate header file, and include it at the two
locations which require it.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Heiko Carstens 2024-09-13 15:05:42 +02:00 committed by Jason A. Donenfeld
parent e10863fffe
commit c1ae1b4ef5
4 changed files with 19 additions and 14 deletions
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17
arch/s390/include/asm/vdso-symbols.h Normal file
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@ -0,0 +1,17 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __S390_VDSO_SYMBOLS_H__
#define __S390_VDSO_SYMBOLS_H__
#include <generated/vdso64-offsets.h>
#ifdef CONFIG_COMPAT
#include <generated/vdso32-offsets.h>
#endif
#define VDSO64_SYMBOL(tsk, name) ((tsk)->mm->context.vdso_base + (vdso64_offset_##name))
#ifdef CONFIG_COMPAT
#define VDSO32_SYMBOL(tsk, name) ((tsk)->mm->context.vdso_base + (vdso32_offset_##name))
#else
#define VDSO32_SYMBOL(tsk, name) (-1UL)
#endif
#endif /* __S390_VDSO_SYMBOLS_H__ */

12
arch/s390/include/asm/vdso.h
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@ -6,18 +6,6 @@
#ifndef __ASSEMBLY__
#include <generated/vdso64-offsets.h>
#ifdef CONFIG_COMPAT
#include <generated/vdso32-offsets.h>
#endif
#define VDSO64_SYMBOL(tsk, name) ((tsk)->mm->context.vdso_base + (vdso64_offset_##name))
#ifdef CONFIG_COMPAT
#define VDSO32_SYMBOL(tsk, name) ((tsk)->mm->context.vdso_base + (vdso32_offset_##name))
#else
#define VDSO32_SYMBOL(tsk, name) (-1UL)
#endif
extern struct vdso_data *vdso_data;
int vdso_getcpu_init(void);

2
arch/s390/kernel/compat_signal.c
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@ -24,11 +24,11 @@
#include <linux/tty.h>
#include <linux/personality.h>
#include <linux/binfmts.h>
#include <asm/vdso-symbols.h>
#include <asm/access-regs.h>
#include <asm/ucontext.h>
#include <linux/uaccess.h>
#include <asm/lowcore.h>
#include <asm/vdso.h>
#include <asm/fpu.h>
#include "compat_linux.h"
#include "compat_ptrace.h"

2
arch/s390/kernel/signal.c
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@ -30,9 +30,9 @@
#include <linux/compat.h>
#include <asm/ucontext.h>
#include <linux/uaccess.h>
#include <asm/vdso-symbols.h>
#include <asm/access-regs.h>
#include <asm/lowcore.h>
#include <asm/vdso.h>
#include "entry.h"
/*