From d09a307fde1c943d23ccb9fecc9a0e1a569732ad Mon Sep 17 00:00:00 2001
From: Heiko Carstens <hca@linux.ibm.com>
Date: Mon, 28 Feb 2022 11:22:12 +0100
Subject: [PATCH] s390/extable: move EX_TABLE define to asm-extable.h

Follow arm64 and riscv and move the EX_TABLE define to asm-extable.h
which is a lot less generic than the current linkage.h.

Also make sure that all files which contain EX_TABLE usages actually
include the new header file. This should make sure that the files
always compile and there won't be any random compile breakage due to
other header file dependencies.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
---
 arch/s390/hypfs/hypfs_vm.c          |  1 +
 arch/s390/include/asm/ap.h          |  1 +
 arch/s390/include/asm/asm-extable.h | 21 +++++++++++++++++++++
 arch/s390/include/asm/cpu_mf.h      |  1 +
 arch/s390/include/asm/diag.h        |  1 +
 arch/s390/include/asm/fpu/api.h     |  1 +
 arch/s390/include/asm/futex.h       |  1 +
 arch/s390/include/asm/linkage.h     | 18 ------------------
 arch/s390/include/asm/mmu.h         |  1 +
 arch/s390/include/asm/uaccess.h     |  1 +
 arch/s390/kernel/diag.c             |  1 +
 arch/s390/kernel/early.c            |  1 +
 arch/s390/kernel/entry.S            |  1 +
 arch/s390/kernel/entry.h            |  1 +
 arch/s390/kernel/ipl.c              |  1 +
 arch/s390/kernel/sysinfo.c          |  1 +
 arch/s390/kernel/text_amode31.S     |  1 +
 arch/s390/kernel/traps.c            |  1 +
 arch/s390/lib/uaccess.c             |  1 +
 arch/s390/mm/fault.c                |  1 +
 arch/s390/mm/maccess.c              |  1 +
 arch/s390/mm/page-states.c          |  1 +
 arch/s390/net/bpf_jit_comp.c        |  1 +
 arch/s390/pci/pci_clp.c             |  1 +
 arch/s390/pci/pci_insn.c            |  1 +
 arch/s390/pci/pci_mmio.c            |  1 +
 drivers/s390/block/dasd_diag.c      |  2 +-
 drivers/s390/char/diag_ftp.c        |  1 +
 drivers/s390/char/sclp.h            |  1 +
 drivers/s390/cio/ioasm.c            |  1 +
 30 files changed, 49 insertions(+), 19 deletions(-)
 create mode 100644 arch/s390/include/asm/asm-extable.h

diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index e8f15dbb89d0..3765c2d81df5 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -10,6 +10,7 @@
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/vmalloc.h>
+#include <asm/extable.h>
 #include <asm/diag.h>
 #include <asm/ebcdic.h>
 #include <asm/timex.h>
diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h
index c0c8a1f6c35d..ae75da592ccb 100644
--- a/arch/s390/include/asm/ap.h
+++ b/arch/s390/include/asm/ap.h
@@ -13,6 +13,7 @@
 #define _ASM_S390_AP_H_
 
 #include <linux/io.h>
+#include <asm/asm-extable.h>
 
 /**
  * The ap_qid_t identifier of an ap queue.
diff --git a/arch/s390/include/asm/asm-extable.h b/arch/s390/include/asm/asm-extable.h
new file mode 100644
index 000000000000..620390f17f0c
--- /dev/null
+++ b/arch/s390/include/asm/asm-extable.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_EXTABLE_H
+#define __ASM_EXTABLE_H
+
+#include <linux/stringify.h>
+#include <asm/asm-const.h>
+
+#define __EX_TABLE(_section, _fault, _target)				\
+	stringify_in_c(.section	_section,"a";)				\
+	stringify_in_c(.align	8;)					\
+	stringify_in_c(.long	(_fault) - .;)				\
+	stringify_in_c(.long	(_target) - .;)				\
+	stringify_in_c(.quad	0;)					\
+	stringify_in_c(.previous)
+
+#define EX_TABLE(_fault, _target)					\
+	__EX_TABLE(__ex_table, _fault, _target)
+#define EX_TABLE_AMODE31(_fault, _target)				\
+	__EX_TABLE(.amode31.ex_table, _fault, _target)
+
+#endif /* __ASM_EXTABLE_H */
diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index e3f12db46cfc..78bb336600bf 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -10,6 +10,7 @@
 #define _ASM_S390_CPU_MF_H
 
 #include <linux/errno.h>
+#include <asm/asm-extable.h>
 #include <asm/facility.h>
 
 asm(".include \"asm/cpu_mf-insn.h\"\n");
diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
index bdcd64f0c1d7..56e99c286d12 100644
--- a/arch/s390/include/asm/diag.h
+++ b/arch/s390/include/asm/diag.h
@@ -11,6 +11,7 @@
 
 #include <linux/if_ether.h>
 #include <linux/percpu.h>
+#include <asm/asm-extable.h>
 
 enum diag_stat_enum {
 	DIAG_STAT_X008,
diff --git a/arch/s390/include/asm/fpu/api.h b/arch/s390/include/asm/fpu/api.h
index a959b815a58b..b714ed0ef688 100644
--- a/arch/s390/include/asm/fpu/api.h
+++ b/arch/s390/include/asm/fpu/api.h
@@ -45,6 +45,7 @@
 #define _ASM_S390_FPU_API_H
 
 #include <linux/preempt.h>
+#include <asm/asm-extable.h>
 
 void save_fpu_regs(void);
 void load_fpu_regs(void);
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index c22debfcebf1..e08c882dccaa 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -4,6 +4,7 @@
 
 #include <linux/uaccess.h>
 #include <linux/futex.h>
+#include <asm/asm-extable.h>
 #include <asm/mmu_context.h>
 #include <asm/errno.h>
 
diff --git a/arch/s390/include/asm/linkage.h b/arch/s390/include/asm/linkage.h
index 1ffea75b8ebc..c76777b15fec 100644
--- a/arch/s390/include/asm/linkage.h
+++ b/arch/s390/include/asm/linkage.h
@@ -2,27 +2,9 @@
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
-#include <asm/asm-const.h>
 #include <linux/stringify.h>
 
 #define __ALIGN .align 16, 0x07
 #define __ALIGN_STR __stringify(__ALIGN)
 
-/*
- * Helper macro for exception table entries
- */
-
-#define __EX_TABLE(_section, _fault, _target)				\
-	stringify_in_c(.section	_section,"a";)				\
-	stringify_in_c(.align	8;)					\
-	stringify_in_c(.long	(_fault) - .;)				\
-	stringify_in_c(.long	(_target) - .;)				\
-	stringify_in_c(.quad	0;)					\
-	stringify_in_c(.previous)
-
-#define EX_TABLE(_fault, _target)					\
-	__EX_TABLE(__ex_table, _fault, _target)
-#define EX_TABLE_AMODE31(_fault, _target)				\
-	__EX_TABLE(.amode31.ex_table, _fault, _target)
-
 #endif
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index e12ff0f29d1a..82aae78e1315 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -4,6 +4,7 @@
 
 #include <linux/cpumask.h>
 #include <linux/errno.h>
+#include <asm/asm-extable.h>
 
 typedef struct {
 	spinlock_t lock;
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index f14f4ade15a9..2c029ee89b7c 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -13,6 +13,7 @@
 /*
  * User space memory access functions
  */
+#include <asm/asm-extable.h>
 #include <asm/processor.h>
 #include <asm/ctl_reg.h>
 #include <asm/extable.h>
diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c
index 76a656b2146f..a778714e4d8b 100644
--- a/arch/s390/kernel/diag.c
+++ b/arch/s390/kernel/diag.c
@@ -11,6 +11,7 @@
 #include <linux/cpu.h>
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>
+#include <asm/asm-extable.h>
 #include <asm/diag.h>
 #include <asm/trace/diag.h>
 #include <asm/sections.h>
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 3dae0c04d33b..9d151808d03e 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -17,6 +17,7 @@
 #include <linux/pfn.h>
 #include <linux/uaccess.h>
 #include <linux/kernel.h>
+#include <asm/asm-extable.h>
 #include <asm/diag.h>
 #include <asm/ebcdic.h>
 #include <asm/ipl.h>
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 1f6df6d4a914..3781de26f207 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -10,6 +10,7 @@
 
 #include <linux/init.h>
 #include <linux/linkage.h>
+#include <asm/asm-extable.h>
 #include <asm/alternative-asm.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index 6083090be1f4..56e5e3712fbb 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -5,6 +5,7 @@
 #include <linux/percpu.h>
 #include <linux/types.h>
 #include <linux/signal.h>
+#include <asm/extable.h>
 #include <asm/ptrace.h>
 #include <asm/idle.h>
 
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index a93142785bbc..28ae7df26c4a 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -19,6 +19,7 @@
 #include <linux/gfp.h>
 #include <linux/crash_dump.h>
 #include <linux/debug_locks.h>
+#include <asm/asm-extable.h>
 #include <asm/diag.h>
 #include <asm/ipl.h>
 #include <asm/smp.h>
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index ef3f2659876c..b5e364358ce4 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -14,6 +14,7 @@
 #include <linux/delay.h>
 #include <linux/export.h>
 #include <linux/slab.h>
+#include <asm/asm-extable.h>
 #include <asm/ebcdic.h>
 #include <asm/debug.h>
 #include <asm/sysinfo.h>
diff --git a/arch/s390/kernel/text_amode31.S b/arch/s390/kernel/text_amode31.S
index 868e4a604110..2c8b14cc5556 100644
--- a/arch/s390/kernel/text_amode31.S
+++ b/arch/s390/kernel/text_amode31.S
@@ -6,6 +6,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/asm-extable.h>
 #include <asm/errno.h>
 #include <asm/sigp.h>
 
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index c2b1ffe88acf..309cb0503feb 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -27,6 +27,7 @@
 #include <linux/uaccess.h>
 #include <linux/cpu.h>
 #include <linux/entry-common.h>
+#include <asm/asm-extable.h>
 #include <asm/fpu/api.h>
 #include <asm/vtime.h>
 #include "entry.h"
diff --git a/arch/s390/lib/uaccess.c b/arch/s390/lib/uaccess.c
index 8a5d21461889..f846ebe038fa 100644
--- a/arch/s390/lib/uaccess.c
+++ b/arch/s390/lib/uaccess.c
@@ -13,6 +13,7 @@
 #include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
+#include <asm/asm-extable.h>
 #include <asm/mmu_context.h>
 #include <asm/facility.h>
 
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 1336541103e7..adaf5f5c9a45 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -32,6 +32,7 @@
 #include <linux/uaccess.h>
 #include <linux/hugetlb.h>
 #include <linux/kfence.h>
+#include <asm/asm-extable.h>
 #include <asm/asm-offsets.h>
 #include <asm/diag.h>
 #include <asm/gmap.h>
diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c
index 4cc5020f4e18..421efa46946b 100644
--- a/arch/s390/mm/maccess.c
+++ b/arch/s390/mm/maccess.c
@@ -12,6 +12,7 @@
 #include <linux/errno.h>
 #include <linux/gfp.h>
 #include <linux/cpu.h>
+#include <asm/asm-extable.h>
 #include <asm/ctl_reg.h>
 #include <asm/io.h>
 #include <asm/stacktrace.h>
diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index 18a6381097a9..d5ea09d78938 100644
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -14,6 +14,7 @@
 #include <linux/memblock.h>
 #include <linux/gfp.h>
 #include <linux/init.h>
+#include <asm/asm-extable.h>
 #include <asm/facility.h>
 #include <asm/page-states.h>
 
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index df5d4da06643..f884d1b9ca79 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -25,6 +25,7 @@
 #include <linux/mm.h>
 #include <linux/kernel.h>
 #include <asm/cacheflush.h>
+#include <asm/extable.h>
 #include <asm/dis.h>
 #include <asm/facility.h>
 #include <asm/nospec-branch.h>
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index be077b39da33..63f3e057c168 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -17,6 +17,7 @@
 #include <linux/delay.h>
 #include <linux/pci.h>
 #include <linux/uaccess.h>
+#include <asm/asm-extable.h>
 #include <asm/pci_debug.h>
 #include <asm/pci_clp.h>
 #include <asm/clp.h>
diff --git a/arch/s390/pci/pci_insn.c b/arch/s390/pci/pci_insn.c
index 4dd58b196cea..1710d006ee93 100644
--- a/arch/s390/pci/pci_insn.c
+++ b/arch/s390/pci/pci_insn.c
@@ -9,6 +9,7 @@
 #include <linux/errno.h>
 #include <linux/delay.h>
 #include <linux/jump_label.h>
+#include <asm/asm-extable.h>
 #include <asm/facility.h>
 #include <asm/pci_insn.h>
 #include <asm/pci_debug.h>
diff --git a/arch/s390/pci/pci_mmio.c b/arch/s390/pci/pci_mmio.c
index c5b35ea129cf..080c88620723 100644
--- a/arch/s390/pci/pci_mmio.c
+++ b/arch/s390/pci/pci_mmio.c
@@ -11,6 +11,7 @@
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/pci.h>
+#include <asm/asm-extable.h>
 #include <asm/pci_io.h>
 #include <asm/pci_debug.h>
 
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index db5987281010..e9edf3b6ed7c 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -19,7 +19,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/jiffies.h>
-
+#include <asm/asm-extable.h>
 #include <asm/dasd.h>
 #include <asm/debug.h>
 #include <asm/diag.h>
diff --git a/drivers/s390/char/diag_ftp.c b/drivers/s390/char/diag_ftp.c
index 6bf1058de873..36bbd6b6e210 100644
--- a/drivers/s390/char/diag_ftp.c
+++ b/drivers/s390/char/diag_ftp.c
@@ -15,6 +15,7 @@
 #include <linux/irq.h>
 #include <linux/wait.h>
 #include <linux/string.h>
+#include <asm/asm-extable.h>
 #include <asm/ctl_reg.h>
 #include <asm/diag.h>
 
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index 8a30e77db469..86dd2cde0f78 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -11,6 +11,7 @@
 
 #include <linux/types.h>
 #include <linux/list.h>
+#include <asm/asm-extable.h>
 #include <asm/sclp.h>
 #include <asm/ebcdic.h>
 
diff --git a/drivers/s390/cio/ioasm.c b/drivers/s390/cio/ioasm.c
index 180913007824..acf1edd36549 100644
--- a/drivers/s390/cio/ioasm.c
+++ b/drivers/s390/cio/ioasm.c
@@ -5,6 +5,7 @@
 
 #include <linux/export.h>
 
+#include <asm/asm-extable.h>
 #include <asm/chpid.h>
 #include <asm/schid.h>
 #include <asm/crw.h>