Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Martin Schwidefsky:
 "Bug fixes, small improvements and one notable change: the system call
  table and the unistd.h header are now generated automatically with a
  shell script from a text file"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/decompressor: discard __ksymtab and .eh_frame sections
  s390: fix handling of -1 in set{,fs}[gu]id16 syscalls
  s390/tools: generate header files in arch/s390/include/generated/
  s390/syscalls: use generated syscall_table.h and unistd.h header files
  s390/syscalls: add Makefile to generate system call header files
  s390/syscalls: add syscalltbl script
  s390/syscalls: add system call table
  s390/decompressor: swap .text and .rodata.compressed sections
  s390/sclp: fix .data section specification
  s390/ipl: avoid usage of __section(.data)
  s390/head: replace hard coded values with constants
  s390/disassembler: add generated gen_opcode_table tool to .gitignore
  s390: remove bogus system call table entries
  s390/kprobes: remove duplicate includes
  s390/dasd: Remove dead return code checks
  s390/dasd: Simplify code
  s390/vdso: revise CFI annotations of vDSO functions
  s390/kernel: emit CFI data in .debug_frame and discard .eh_frame sections

arch/s390/Makefile

@@ -88,9 +88,13 @@ KBUILD_CFLAGS	+= -DCC_USING_HOTPATCH
 endif
 endif
 
+# Test CFI features of binutils
+cfi := $(call as-instr,.cfi_startproc\n.cfi_val_offset 15$(comma)-160\n.cfi_endproc,-DCONFIG_AS_CFI_VAL_OFFSET=1)
+
 KBUILD_CFLAGS	+= -mbackchain -msoft-float $(cflags-y)
 KBUILD_CFLAGS	+= -pipe -fno-strength-reduce -Wno-sign-compare
-KBUILD_AFLAGS	+= $(aflags-y)
+KBUILD_CFLAGS	+= -fno-asynchronous-unwind-tables $(cfi)
+KBUILD_AFLAGS	+= $(aflags-y) $(cfi)
 
 OBJCOPYFLAGS	:= -O binary
 
@@ -107,6 +111,7 @@ drivers-y	+= drivers/s390/
 drivers-$(CONFIG_OPROFILE)	+= arch/s390/oprofile/
 
 boot		:= arch/s390/boot
+syscalls	:= arch/s390/kernel/syscalls
 tools		:= arch/s390/tools
 
 all: image bzImage
@@ -128,9 +133,12 @@ archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
 	$(Q)$(MAKE) $(clean)=$(tools)
 
+archheaders:
+	$(Q)$(MAKE) $(build)=$(syscalls) uapi
+
 archprepare:
-	$(Q)$(MAKE) $(build)=$(tools) include/generated/facilities.h
-	$(Q)$(MAKE) $(build)=$(tools) include/generated/dis.h
+	$(Q)$(MAKE) $(build)=$(syscalls) kapi
+	$(Q)$(MAKE) $(build)=$(tools) kapi
 
 # Don't use tabs in echo arguments
 define archhelp

arch/s390/boot/compressed/Makefile

@@ -14,6 +14,7 @@ targets += misc.o piggy.o sizes.h head.o
 KBUILD_CFLAGS := -m64 -D__KERNEL__ -O2
 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY
 KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks -msoft-float
+KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
 KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
 

arch/s390/boot/compressed/vmlinux.lds.S

@@ -17,15 +17,15 @@ SECTIONS
 		HEAD_TEXT
 		_ehead = . ;
 	}
-	.rodata.compressed : {
-		*(.rodata.compressed)
-	}
 	.text :	{
 		_text = .;	/* Text */
 		*(.text)
 		*(.text.*)
 		_etext = . ;
 	}
+	.rodata.compressed : {
+		*(.rodata.compressed)
+	}
 	.rodata : {
 		_rodata = . ;
 		*(.rodata)	 /* read-only data */
@@ -48,4 +48,10 @@ SECTIONS
 		_ebss = .;
 	}
 	_end = .;
+
+	/* Sections to be discarded */
+	/DISCARD/ : {
+		*(.eh_frame)
+		*(*__ksymtab*)
+	}
 }

arch/s390/include/asm/Kbuild

 # SPDX-License-Identifier: GPL-2.0
+generated-y += dis-defs.h
+generated-y += facility-defs.h
+generated-y += syscall_table.h
+generated-y += unistd_nr.h
+
 generic-y += asm-offsets.h
 generic-y += cacheflush.h
 generic-y += clkdev.h

arch/s390/include/asm/dis.h

@@ -9,7 +9,7 @@
 #ifndef __ASM_S390_DIS_H__
 #define __ASM_S390_DIS_H__
 
-#include <generated/dis.h>
+#include <asm/dis-defs.h>
 
 static inline int insn_length(unsigned char code)
 {

arch/s390/include/asm/dwarf.h

+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_S390_DWARF_H
+#define _ASM_S390_DWARF_H
+
+#ifdef __ASSEMBLY__
+
+#define CFI_STARTPROC		.cfi_startproc
+#define CFI_ENDPROC		.cfi_endproc
+#define CFI_DEF_CFA_OFFSET	.cfi_def_cfa_offset
+#define CFI_ADJUST_CFA_OFFSET	.cfi_adjust_cfa_offset
+#define CFI_RESTORE		.cfi_restore
+
+#ifdef CONFIG_AS_CFI_VAL_OFFSET
+#define CFI_VAL_OFFSET		.cfi_val_offset
+#else
+#define CFI_VAL_OFFSET		#
+#endif
+
+#ifndef BUILD_VDSO
+	/*
+	 * Emit CFI data in .debug_frame sections and not in .eh_frame
+	 * sections.  The .eh_frame CFI is used for runtime unwind
+	 * information that is not being used.  Hence, vmlinux.lds.S
+	 * can discard the .eh_frame sections.
+	 */
+	.cfi_sections .debug_frame
+#else
+	/*
+	 * For vDSO, emit CFI data in both, .eh_frame and .debug_frame
+	 * sections.
+	 */
+	.cfi_sections .eh_frame, .debug_frame
+#endif
+
+#endif	/* __ASSEMBLY__ */
+
+#endif	/* _ASM_S390_DWARF_H */

arch/s390/include/asm/facility.h

@@ -8,7 +8,7 @@
 #ifndef __ASM_FACILITY_H
 #define __ASM_FACILITY_H
 
-#include <generated/facilities.h>
+#include <asm/facility-defs.h>
 #include <linux/string.h>
 #include <linux/preempt.h>
 #include <asm/lowcore.h>

arch/s390/include/asm/unistd.h

@@ -8,6 +8,7 @@
 #define _ASM_S390_UNISTD_H_
 
 #include <uapi/asm/unistd.h>
+#include <asm/unistd_nr.h>
 
 #define __IGNORE_time
 #define __IGNORE_pkey_mprotect

arch/s390/include/uapi/asm/Kbuild

@@ -2,6 +2,9 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generated-y += unistd_32.h
+generated-y += unistd_64.h
+
 generic-y += errno.h
 generic-y += fcntl.h
 generic-y += ioctl.h

arch/s390/include/uapi/asm/unistd.h

@@ -8,405 +8,10 @@
 #ifndef _UAPI_ASM_S390_UNISTD_H_
 #define _UAPI_ASM_S390_UNISTD_H_
 
-/*
- * This file contains the system call numbers.
- */
-
-#define __NR_exit                 1
-#define __NR_fork                 2
-#define __NR_read                 3
-#define __NR_write                4
-#define __NR_open                 5
-#define __NR_close                6
-#define __NR_restart_syscall	  7
-#define __NR_creat                8
-#define __NR_link                 9
-#define __NR_unlink              10
-#define __NR_execve              11
-#define __NR_chdir               12
-#define __NR_mknod               14
-#define __NR_chmod               15
-#define __NR_lseek               19
-#define __NR_getpid              20
-#define __NR_mount               21
-#define __NR_umount              22
-#define __NR_ptrace              26
-#define __NR_alarm               27
-#define __NR_pause               29
-#define __NR_utime               30
-#define __NR_access              33
-#define __NR_nice                34
-#define __NR_sync                36
-#define __NR_kill                37
-#define __NR_rename              38
-#define __NR_mkdir               39
-#define __NR_rmdir               40
-#define __NR_dup                 41
-#define __NR_pipe                42
-#define __NR_times               43
-#define __NR_brk                 45
-#define __NR_signal              48
-#define __NR_acct                51
-#define __NR_umount2             52
-#define __NR_ioctl               54
-#define __NR_fcntl               55
-#define __NR_setpgid             57
-#define __NR_umask               60
-#define __NR_chroot              61
-#define __NR_ustat               62
-#define __NR_dup2                63
-#define __NR_getppid             64
-#define __NR_getpgrp             65
-#define __NR_setsid              66
-#define __NR_sigaction           67
-#define __NR_sigsuspend          72
-#define __NR_sigpending          73
-#define __NR_sethostname         74
-#define __NR_setrlimit           75
-#define __NR_getrusage           77
-#define __NR_gettimeofday        78
-#define __NR_settimeofday        79
-#define __NR_symlink             83
-#define __NR_readlink            85
-#define __NR_uselib              86
-#define __NR_swapon              87
-#define __NR_reboot              88
-#define __NR_readdir             89
-#define __NR_mmap                90
-#define __NR_munmap              91
-#define __NR_truncate            92
-#define __NR_ftruncate           93
-#define __NR_fchmod              94
-#define __NR_getpriority         96
-#define __NR_setpriority         97
-#define __NR_statfs              99
-#define __NR_fstatfs            100
-#define __NR_socketcall         102
-#define __NR_syslog             103
-#define __NR_setitimer          104
-#define __NR_getitimer          105
-#define __NR_stat               106
-#define __NR_lstat              107
-#define __NR_fstat              108
-#define __NR_lookup_dcookie     110
-#define __NR_vhangup            111
-#define __NR_idle               112
-#define __NR_wait4              114
-#define __NR_swapoff            115
-#define __NR_sysinfo            116
-#define __NR_ipc                117
-#define __NR_fsync              118
-#define __NR_sigreturn          119
-#define __NR_clone              120
-#define __NR_setdomainname      121
-#define __NR_uname              122
-#define __NR_adjtimex           124
-#define __NR_mprotect           125
-#define __NR_sigprocmask        126
-#define __NR_create_module      127
-#define __NR_init_module        128
-#define __NR_delete_module      129
-#define __NR_get_kernel_syms    130
-#define __NR_quotactl           131
-#define __NR_getpgid            132
-#define __NR_fchdir             133
-#define __NR_bdflush            134
-#define __NR_sysfs              135
-#define __NR_personality        136
-#define __NR_afs_syscall        137 /* Syscall for Andrew File System */
-#define __NR_getdents           141
-#define __NR_flock              143
-#define __NR_msync              144
-#define __NR_readv              145
-#define __NR_writev             146
-#define __NR_getsid             147
-#define __NR_fdatasync          148
-#define __NR__sysctl            149
-#define __NR_mlock              150
-#define __NR_munlock            151
-#define __NR_mlockall           152
-#define __NR_munlockall         153
-#define __NR_sched_setparam             154
-#define __NR_sched_getparam             155
-#define __NR_sched_setscheduler         156
-#define __NR_sched_getscheduler         157
-#define __NR_sched_yield                158
-#define __NR_sched_get_priority_max     159
-#define __NR_sched_get_priority_min     160
-#define __NR_sched_rr_get_interval      161
-#define __NR_nanosleep          162
-#define __NR_mremap             163
-#define __NR_query_module       167
-#define __NR_poll               168
-#define __NR_nfsservctl         169
-#define __NR_prctl              172
-#define __NR_rt_sigreturn       173
-#define __NR_rt_sigaction       174
-#define __NR_rt_sigprocmask     175
-#define __NR_rt_sigpending      176
-#define __NR_rt_sigtimedwait    177
-#define __NR_rt_sigqueueinfo    178
-#define __NR_rt_sigsuspend      179
-#define __NR_pread64            180
-#define __NR_pwrite64           181
-#define __NR_getcwd             183
-#define __NR_capget             184
-#define __NR_capset             185
-#define __NR_sigaltstack        186
-#define __NR_sendfile           187
-#define __NR_getpmsg		188
-#define __NR_putpmsg		189
-#define __NR_vfork		190
-#define __NR_pivot_root         217
-#define __NR_mincore            218
-#define __NR_madvise            219
-#define __NR_getdents64		220
-#define __NR_readahead		222
-#define __NR_setxattr		224
-#define __NR_lsetxattr		225
-#define __NR_fsetxattr		226
-#define __NR_getxattr		227
-#define __NR_lgetxattr		228
-#define __NR_fgetxattr		229
-#define __NR_listxattr		230
-#define __NR_llistxattr		231
-#define __NR_flistxattr		232
-#define __NR_removexattr	233
-#define __NR_lremovexattr	234
-#define __NR_fremovexattr	235
-#define __NR_gettid		236
-#define __NR_tkill		237
-#define __NR_futex		238
-#define __NR_sched_setaffinity	239
-#define __NR_sched_getaffinity	240
-#define __NR_tgkill		241
-/* Number 242 is reserved for tux */
-#define __NR_io_setup		243
-#define __NR_io_destroy		244
-#define __NR_io_getevents	245
-#define __NR_io_submit		246
-#define __NR_io_cancel		247
-#define __NR_exit_group		248
-#define __NR_epoll_create	249
-#define __NR_epoll_ctl		250
-#define __NR_epoll_wait		251
-#define __NR_set_tid_address	252
-#define __NR_fadvise64		253
-#define __NR_timer_create	254
-#define __NR_timer_settime	255
-#define __NR_timer_gettime	256
-#define __NR_timer_getoverrun	257
-#define __NR_timer_delete	258
-#define __NR_clock_settime	259
-#define __NR_clock_gettime	260
-#define __NR_clock_getres	261
-#define __NR_clock_nanosleep	262
-/* Number 263 is reserved for vserver */
-#define __NR_statfs64		265
-#define __NR_fstatfs64		266
-#define __NR_remap_file_pages	267
-#define __NR_mbind		268
-#define __NR_get_mempolicy	269
-#define __NR_set_mempolicy	270
-#define __NR_mq_open		271
-#define __NR_mq_unlink		272
-#define __NR_mq_timedsend	273
-#define __NR_mq_timedreceive	274
-#define __NR_mq_notify		275
-#define __NR_mq_getsetattr	276
-#define __NR_kexec_load		277
-#define __NR_add_key		278
-#define __NR_request_key	279
-#define __NR_keyctl		280
-#define __NR_waitid		281
-#define __NR_ioprio_set		282
-#define __NR_ioprio_get		283
-#define __NR_inotify_init	284
-#define __NR_inotify_add_watch	285
-#define __NR_inotify_rm_watch	286
-#define __NR_migrate_pages	287
-#define __NR_openat		288
-#define __NR_mkdirat		289
-#define __NR_mknodat		290
-#define __NR_fchownat		291
-#define __NR_futimesat		292
-#define __NR_unlinkat		294
-#define __NR_renameat		295
-#define __NR_linkat		296
-#define __NR_symlinkat		297
-#define __NR_readlinkat		298
-#define __NR_fchmodat		299
-#define __NR_faccessat		300
-#define __NR_pselect6		301
-#define __NR_ppoll		302
-#define __NR_unshare		303
-#define __NR_set_robust_list	304
-#define __NR_get_robust_list	305
-#define __NR_splice		306
-#define __NR_sync_file_range	307
-#define __NR_tee		308
-#define __NR_vmsplice		309
-#define __NR_move_pages		310
-#define __NR_getcpu		311
-#define __NR_epoll_pwait	312
-#define __NR_utimes		313
-#define __NR_fallocate		314
-#define __NR_utimensat		315
-#define __NR_signalfd		316
-#define __NR_timerfd		317
-#define __NR_eventfd		318
-#define __NR_timerfd_create	319
-#define __NR_timerfd_settime	320
-#define __NR_timerfd_gettime	321
-#define __NR_signalfd4		322
-#define __NR_eventfd2		323
-#define __NR_inotify_init1	324
-#define __NR_pipe2		325
-#define __NR_dup3		326
-#define __NR_epoll_create1	327
-#define	__NR_preadv		328
-#define	__NR_pwritev		329
-#define __NR_rt_tgsigqueueinfo	330
-#define __NR_perf_event_open	331
-#define __NR_fanotify_init	332
-#define __NR_fanotify_mark	333
-#define __NR_prlimit64		334
-#define __NR_name_to_handle_at	335
-#define __NR_open_by_handle_at	336
-#define __NR_clock_adjtime	337
-#define __NR_syncfs		338
-#define __NR_setns		339
-#define __NR_process_vm_readv	340
-#define __NR_process_vm_writev	341
-#define __NR_s390_runtime_instr 342
-#define __NR_kcmp		343
-#define __NR_finit_module	344
-#define __NR_sched_setattr	345
-#define __NR_sched_getattr	346
-#define __NR_renameat2		347
-#define __NR_seccomp		348
-#define __NR_getrandom		349
-#define __NR_memfd_create	350
-#define __NR_bpf		351
-#define __NR_s390_pci_mmio_write	352
-#define __NR_s390_pci_mmio_read		353
-#define __NR_execveat		354
-#define __NR_userfaultfd	355
-#define __NR_membarrier		356
-#define __NR_recvmmsg		357
-#define __NR_sendmmsg		358
-#define __NR_socket		359
-#define __NR_socketpair		360
-#define __NR_bind		361
-#define __NR_connect		362
-#define __NR_listen		363
-#define __NR_accept4		364
-#define __NR_getsockopt		365
-#define __NR_setsockopt		366
-#define __NR_getsockname	367
-#define __NR_getpeername	368
-#define __NR_sendto		369
-#define __NR_sendmsg		370
-#define __NR_recvfrom		371
-#define __NR_recvmsg		372
-#define __NR_shutdown		373
-#define __NR_mlock2		374
-#define __NR_copy_file_range	375
-#define __NR_preadv2		376
-#define __NR_pwritev2		377
-#define __NR_s390_guarded_storage	378
-#define __NR_statx		379
-#define __NR_s390_sthyi		380
-#define NR_syscalls 381
-
-/* 
- * There are some system calls that are not present on 64 bit, some
- * have a different name although they do the same (e.g. __NR_chown32
- * is __NR_chown on 64 bit).
- */
-#ifndef __s390x__
-
-#define __NR_time		 13
-#define __NR_lchown		 16
-#define __NR_setuid		 23
-#define __NR_getuid		 24
-#define __NR_stime		 25
-#define __NR_setgid		 46
-#define __NR_getgid		 47
-#define __NR_geteuid		 49
-#define __NR_getegid		 50
-#define __NR_setreuid		 70
-#define __NR_setregid		 71
-#define __NR_getrlimit		 76
-#define __NR_getgroups		 80
-#define __NR_setgroups		 81
-#define __NR_fchown		 95
-#define __NR_ioperm		101
-#define __NR_setfsuid		138
-#define __NR_setfsgid		139
-#define __NR__llseek		140
-#define __NR__newselect 	142
-#define __NR_setresuid		164
-#define __NR_getresuid		165
-#define __NR_setresgid		170
-#define __NR_getresgid		171
-#define __NR_chown		182
-#define __NR_ugetrlimit		191	/* SuS compliant getrlimit */
-#define __NR_mmap2		192
-#define __NR_truncate64		193
-#define __NR_ftruncate64	194
-#define __NR_stat64		195
-#define __NR_lstat64		196
-#define __NR_fstat64		197
-#define __NR_lchown32		198
-#define __NR_getuid32		199
-#define __NR_getgid32		200
-#define __NR_geteuid32		201
-#define __NR_getegid32		202
-#define __NR_setreuid32		203
-#define __NR_setregid32		204
-#define __NR_getgroups32	205
-#define __NR_setgroups32	206
-#define __NR_fchown32		207
-#define __NR_setresuid32	208
-#define __NR_getresuid32	209
-#define __NR_setresgid32	210
-#define __NR_getresgid32	211
-#define __NR_chown32		212
-#define __NR_setuid32		213
-#define __NR_setgid32		214
-#define __NR_setfsuid32		215
-#define __NR_setfsgid32		216
-#define __NR_fcntl64		221
-#define __NR_sendfile64		223
-#define __NR_fadvise64_64	264
-#define __NR_fstatat64		293
-
+#ifdef __s390x__
+#include <asm/unistd_64.h>
 #else
-
-#define __NR_select		142
-#define __NR_getrlimit		191	/* SuS compliant getrlimit */
-#define __NR_lchown  		198
-#define __NR_getuid  		199
-#define __NR_getgid  		200
-#define __NR_geteuid  		201
-#define __NR_getegid  		202
-#define __NR_setreuid  		203
-#define __NR_setregid  		204
-#define __NR_getgroups  	205
-#define __NR_setgroups  	206
-#define __NR_fchown  		207
-#define __NR_setresuid  	208
-#define __NR_getresuid  	209
-#define __NR_setresgid  	210
-#define __NR_getresgid  	211
-#define __NR_chown  		212
-#define __NR_setuid  		213
-#define __NR_setgid  		214
-#define __NR_setfsuid  		215
-#define __NR_setfsgid  		216
-#define __NR_newfstatat		293
-
+#include <asm/unistd_32.h>
 #endif
 
 #endif /* _UAPI_ASM_S390_UNISTD_H_ */

arch/s390/kernel/compat_linux.c

@@ -110,7 +110,7 @@ COMPAT_SYSCALL_DEFINE2(s390_setregid16, u16, rgid, u16, egid)
 
 COMPAT_SYSCALL_DEFINE1(s390_setgid16, u16, gid)
 {
-	return sys_setgid((gid_t)gid);
+	return sys_setgid(low2highgid(gid));
 }
 
 COMPAT_SYSCALL_DEFINE2(s390_setreuid16, u16, ruid, u16, euid)
@@ -120,7 +120,7 @@ COMPAT_SYSCALL_DEFINE2(s390_setreuid16, u16, ruid, u16, euid)
 
 COMPAT_SYSCALL_DEFINE1(s390_setuid16, u16, uid)
 {
-	return sys_setuid((uid_t)uid);
+	return sys_setuid(low2highuid(uid));
 }
 
 COMPAT_SYSCALL_DEFINE3(s390_setresuid16, u16, ruid, u16, euid, u16, suid)
@@ -173,12 +173,12 @@ COMPAT_SYSCALL_DEFINE3(s390_getresgid16, u16 __user *, rgidp,
 
 COMPAT_SYSCALL_DEFINE1(s390_setfsuid16, u16, uid)
 {
-	return sys_setfsuid((uid_t)uid);
+	return sys_setfsuid(low2highuid(uid));
 }
 
 COMPAT_SYSCALL_DEFINE1(s390_setfsgid16, u16, gid)
 {
-	return sys_setfsgid((gid_t)gid);
+	return sys_setfsgid(low2highgid(gid));
 }
 
 static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)

arch/s390/kernel/entry.S

@@ -1392,7 +1392,7 @@ cleanup_critical:
 #define SYSCALL(esame,emu)	.long esame
 	.globl	sys_call_table
 sys_call_table:
-#include "syscalls.S"
+#include "asm/syscall_table.h"
 #undef SYSCALL
 
 #ifdef CONFIG_COMPAT
@@ -1400,6 +1400,6 @@ sys_call_table:
 #define SYSCALL(esame,emu)	.long emu
 	.globl	sys_call_table_emu
 sys_call_table_emu:
-#include "syscalls.S"
+#include "asm/syscall_table.h"
 #undef SYSCALL
 #endif

arch/s390/kernel/head.S

@@ -66,7 +66,7 @@ __HEAD
 # subroutine to wait for end I/O
 #
 .Lirqwait:
-	mvc	0x1f0(16),.Lnewpsw	# set up IO interrupt psw
+	mvc	__LC_IO_NEW_PSW(16),.Lnewpsw	# set up IO interrupt psw
 	lpsw	.Lwaitpsw
 .Lioint:
 	br	%r14
@@ -98,7 +98,7 @@ __HEAD
 	bnz	.Llderr
 .Lwait4irq:
 	bas	%r14,.Lirqwait
-	c	%r1,0xb8		# compare subchannel number
+	c	%r1,__LC_SUBCHANNEL_ID	# compare subchannel number
 	bne	.Lwait4irq
 	tsch	0(%r5)
 
@@ -156,9 +156,9 @@ iplstart:
 	.fill	16,4,0x0
 0:	lmh	%r0,%r15,0(%r13)	# clear high-order half of gprs
 	sam31				# switch to 31 bit addressing mode
-	lh	%r1,0xb8		# test if subchannel number
+	lh	%r1,__LC_SUBCHANNEL_ID	# test if subchannel number
 	bct	%r1,.Lnoload		#  is valid
-	l	%r1,0xb8		# load ipl subchannel number
+	l	%r1,__LC_SUBCHANNEL_ID	# load ipl subchannel number
 	la	%r2,IPL_BS		# load start address
 	bas	%r14,.Lloader		# load rest of ipl image
 	l	%r12,.Lparm		# pointer to parameter area
@@ -239,7 +239,7 @@ iplstart:
 	bz	.Lnoreset
 .Lwaitforirq:
 	bas	%r14,.Lirqwait		# wait for IO interrupt
-	c	%r1,0xb8		# compare subchannel number
+	c	%r1,__LC_SUBCHANNEL_ID	# compare subchannel number
 	bne	.Lwaitforirq
 	la	%r5,.Lirb
 	tsch	0(%r5)

arch/s390/kernel/ipl.c

@@ -119,13 +119,9 @@ static char *dump_type_str(enum dump_type type)
 	}
 }
 
-/*
- * Must be in data section since the bss section
- * is not cleared when these are accessed.
- */
-static u8 ipl_ssid __section(.data) = 0;
-static u16 ipl_devno __section(.data) = 0;
-u32 ipl_flags __section(.data) = 0;
+static u8 ipl_ssid;
+static u16 ipl_devno;
+u32 ipl_flags;
 
 enum ipl_method {
 	REIPL_METHOD_CCW_CIO,
@@ -148,7 +144,7 @@ enum dump_method {
 	DUMP_METHOD_FCP_DIAG,
 };
 
-static int diag308_set_works = 0;
+static int diag308_set_works;
 
 static struct ipl_parameter_block ipl_block;
 

arch/s390/kernel/kprobes.c

@@ -20,7 +20,6 @@
 #include <linux/ftrace.h>
 #include <asm/set_memory.h>
 #include <asm/sections.h>
-#include <linux/uaccess.h>
 #include <asm/dis.h>
 
 DEFINE_PER_CPU(struct kprobe *, current_kprobe);

arch/s390/kernel/syscalls.S

-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * definitions for sys_call_table, each line represents an
- * entry in the table in the form
- * SYSCALL(64 bit syscall, 31 bit emulated syscall)
- *
- * this file is meant to be included from entry.S
- */
-
-#define NI_SYSCALL SYSCALL(sys_ni_syscall,sys_ni_syscall)
-
-NI_SYSCALL						/* 0 */
-SYSCALL(sys_exit,sys_exit)
-SYSCALL(sys_fork,sys_fork)
-SYSCALL(sys_read,compat_sys_s390_read)
-SYSCALL(sys_write,compat_sys_s390_write)
-SYSCALL(sys_open,compat_sys_open)			/* 5 */
-SYSCALL(sys_close,sys_close)
-SYSCALL(sys_restart_syscall,sys_restart_syscall)
-SYSCALL(sys_creat,compat_sys_creat)
-SYSCALL(sys_link,compat_sys_link)
-SYSCALL(sys_unlink,compat_sys_unlink)			/* 10 */
-SYSCALL(sys_execve,compat_sys_execve)
-SYSCALL(sys_chdir,compat_sys_chdir)
-SYSCALL(sys_ni_syscall,compat_sys_time)			/* old time syscall */
-SYSCALL(sys_mknod,compat_sys_mknod)
-SYSCALL(sys_chmod,compat_sys_chmod)			/* 15 */
-SYSCALL(sys_ni_syscall,compat_sys_s390_lchown16)	/* old lchown16 syscall*/
-NI_SYSCALL						/* old break syscall holder */
-NI_SYSCALL						/* old stat syscall holder */
-SYSCALL(sys_lseek,compat_sys_lseek)
-SYSCALL(sys_getpid,sys_getpid)				/* 20 */
-SYSCALL(sys_mount,compat_sys_mount)
-SYSCALL(sys_oldumount,compat_sys_oldumount)
-SYSCALL(sys_ni_syscall,compat_sys_s390_setuid16)	/* old setuid16 syscall*/
-SYSCALL(sys_ni_syscall,compat_sys_s390_getuid16)	/* old getuid16 syscall*/
-SYSCALL(sys_ni_syscall,compat_sys_stime)		/* 25 old stime syscall */
-SYSCALL(sys_ptrace,compat_sys_ptrace)
-SYSCALL(sys_alarm,sys_alarm)
-NI_SYSCALL						/* old fstat syscall */
-SYSCALL(sys_pause,sys_pause)
-SYSCALL(sys_utime,compat_sys_utime)			/* 30 */
-NI_SYSCALL						/* old stty syscall */
-NI_SYSCALL						/* old gtty syscall */
-SYSCALL(sys_access,compat_sys_access)
-SYSCALL(sys_nice,sys_nice)
-NI_SYSCALL						/* 35 old ftime syscall */
-SYSCALL(sys_sync,sys_sync)
-SYSCALL(sys_kill,sys_kill)
-SYSCALL(sys_rename,compat_sys_rename)
-SYSCALL(sys_mkdir,compat_sys_mkdir)
-SYSCALL(sys_rmdir,compat_sys_rmdir)			/* 40 */
-SYSCALL(sys_dup,sys_dup)
-SYSCALL(sys_pipe,compat_sys_pipe)
-SYSCALL(sys_times,compat_sys_times)
-NI_SYSCALL						/* old prof syscall */
-SYSCALL(sys_brk,compat_sys_brk)				/* 45 */
-SYSCALL(sys_ni_syscall,compat_sys_s390_setgid16)	/* old setgid16 syscall*/
-SYSCALL(sys_ni_syscall,compat_sys_s390_getgid16)	/* old getgid16 syscall*/
-SYSCALL(sys_signal,compat_sys_signal)
-SYSCALL(sys_ni_syscall,compat_sys_s390_geteuid16)	/* old geteuid16 syscall */
-SYSCALL(sys_ni_syscall,compat_sys_s390_getegid16)	/* 50 old getegid16 syscall */
-SYSCALL(sys_acct,compat_sys_acct)
-SYSCALL(sys_umount,compat_sys_umount)
-NI_SYSCALL						/* old lock syscall */
-SYSCALL(sys_ioctl,compat_sys_ioctl)
-SYSCALL(sys_fcntl,compat_sys_fcntl)			/* 55 */
-NI_SYSCALL						/* intel mpx syscall */
-SYSCALL(sys_setpgid,sys_setpgid)
-NI_SYSCALL						/* old ulimit syscall */
-NI_SYSCALL						/* old uname syscall */
-SYSCALL(sys_umask,sys_umask)				/* 60 */
-SYSCALL(sys_chroot,compat_sys_chroot)
-SYSCALL(sys_ustat,compat_sys_ustat)
-SYSCALL(sys_dup2,sys_dup2)
-SYSCALL(sys_getppid,sys_getppid)
-SYSCALL(sys_getpgrp,sys_getpgrp)			/* 65 */
-SYSCALL(sys_setsid,sys_setsid)
-SYSCALL(sys_sigaction,compat_sys_sigaction)
-NI_SYSCALL						/* old sgetmask syscall*/
-NI_SYSCALL						/* old ssetmask syscall*/
-SYSCALL(sys_ni_syscall,compat_sys_s390_setreuid16)	/* old setreuid16 syscall */
-SYSCALL(sys_ni_syscall,compat_sys_s390_setregid16)	/* old setregid16 syscall */
-SYSCALL(sys_sigsuspend,compat_sys_sigsuspend)
-SYSCALL(sys_sigpending,compat_sys_sigpending)
-SYSCALL(sys_sethostname,compat_sys_sethostname)
-SYSCALL(sys_setrlimit,compat_sys_setrlimit)		/* 75 */
-SYSCALL(sys_getrlimit,compat_sys_old_getrlimit)
-SYSCALL(sys_getrusage,compat_sys_getrusage)
-SYSCALL(sys_gettimeofday,compat_sys_gettimeofday)
-SYSCALL(sys_settimeofday,compat_sys_settimeofday)
-SYSCALL(sys_ni_syscall,compat_sys_s390_getgroups16)	/* 80 old getgroups16 syscall */
-SYSCALL(sys_ni_syscall,compat_sys_s390_setgroups16)	/* old setgroups16 syscall */
-NI_SYSCALL						/* old select syscall */
-SYSCALL(sys_symlink,compat_sys_symlink)
-NI_SYSCALL						/* old lstat syscall */
-SYSCALL(sys_readlink,compat_sys_readlink)		/* 85 */
-SYSCALL(sys_uselib,compat_sys_uselib)
-SYSCALL(sys_swapon,compat_sys_swapon)
-SYSCALL(sys_reboot,compat_sys_reboot)
-SYSCALL(sys_ni_syscall,compat_sys_old_readdir)		/* old readdir syscall */
-SYSCALL(sys_old_mmap,compat_sys_s390_old_mmap)		/* 90 */
-SYSCALL(sys_munmap,compat_sys_munmap)
-SYSCALL(sys_truncate,compat_sys_truncate)
-SYSCALL(sys_ftruncate,compat_sys_ftruncate)
-SYSCALL(sys_fchmod,sys_fchmod)
-SYSCALL(sys_ni_syscall,compat_sys_s390_fchown16)	/* 95 old fchown16 syscall*/
-SYSCALL(sys_getpriority,sys_getpriority)
-SYSCALL(sys_setpriority,sys_setpriority)
-NI_SYSCALL						/* old profil syscall */
-SYSCALL(sys_statfs,compat_sys_statfs)
-SYSCALL(sys_fstatfs,compat_sys_fstatfs)			/* 100 */
-NI_SYSCALL						/* ioperm for i386 */
-SYSCALL(sys_socketcall,compat_sys_socketcall)
-SYSCALL(sys_syslog,compat_sys_syslog)
-SYSCALL(sys_setitimer,compat_sys_setitimer)
-SYSCALL(sys_getitimer,compat_sys_getitimer)		/* 105 */
-SYSCALL(sys_newstat,compat_sys_newstat)
-SYSCALL(sys_newlstat,compat_sys_newlstat)
-SYSCALL(sys_newfstat,compat_sys_newfstat)
-NI_SYSCALL						/* old uname syscall */
-SYSCALL(sys_lookup_dcookie,compat_sys_lookup_dcookie)	/* 110 */
-SYSCALL(sys_vhangup,sys_vhangup)
-NI_SYSCALL						/* old "idle" system call */
-NI_SYSCALL						/* vm86old for i386 */
-SYSCALL(sys_wait4,compat_sys_wait4)
-SYSCALL(sys_swapoff,compat_sys_swapoff)			/* 115 */
-SYSCALL(sys_sysinfo,compat_sys_sysinfo)
-SYSCALL(sys_s390_ipc,compat_sys_s390_ipc)
-SYSCALL(sys_fsync,sys_fsync)
-SYSCALL(sys_sigreturn,compat_sys_sigreturn)
-SYSCALL(sys_clone,compat_sys_clone)			/* 120 */
-SYSCALL(sys_setdomainname,compat_sys_setdomainname)
-SYSCALL(sys_newuname,compat_sys_newuname)
-NI_SYSCALL						/* modify_ldt for i386 */
-SYSCALL(sys_adjtimex,compat_sys_adjtimex)
-SYSCALL(sys_mprotect,compat_sys_mprotect)		/* 125 */
-SYSCALL(sys_sigprocmask,compat_sys_sigprocmask)
-NI_SYSCALL						/* old "create module" */
-SYSCALL(sys_init_module,compat_sys_init_module)
-SYSCALL(sys_delete_module,compat_sys_delete_module)
-NI_SYSCALL						/* 130: old get_kernel_syms */
-SYSCALL(sys_quotactl,compat_sys_quotactl)
-SYSCALL(sys_getpgid,sys_getpgid)
-SYSCALL(sys_fchdir,sys_fchdir)
-SYSCALL(sys_bdflush,compat_sys_bdflush)
-SYSCALL(sys_sysfs,compat_sys_sysfs)			/* 135 */
-SYSCALL(sys_s390_personality,sys_s390_personality)
-NI_SYSCALL						/* for afs_syscall */
-SYSCALL(sys_ni_syscall,compat_sys_s390_setfsuid16)	/* old setfsuid16 syscall */
-SYSCALL(sys_ni_syscall,compat_sys_s390_setfsgid16)	/* old setfsgid16 syscall */
-SYSCALL(sys_llseek,compat_sys_llseek)			/* 140 */
-SYSCALL(sys_getdents,compat_sys_getdents)
-SYSCALL(sys_select,compat_sys_select)
-SYSCALL(sys_flock,sys_flock)
-SYSCALL(sys_msync,compat_sys_msync)
-SYSCALL(sys_readv,compat_sys_readv)			/* 145 */
-SYSCALL(sys_writev,compat_sys_writev)
-SYSCALL(sys_getsid,sys_getsid)
-SYSCALL(sys_fdatasync,sys_fdatasync)
-SYSCALL(sys_sysctl,compat_sys_sysctl)
-SYSCALL(sys_mlock,compat_sys_mlock)			/* 150 */
-SYSCALL(sys_munlock,compat_sys_munlock)
-SYSCALL(sys_mlockall,sys_mlockall)
-SYSCALL(sys_munlockall,sys_munlockall)
-SYSCALL(sys_sched_setparam,compat_sys_sched_setparam)
-SYSCALL(sys_sched_getparam,compat_sys_sched_getparam)	/* 155 */
-SYSCALL(sys_sched_setscheduler,compat_sys_sched_setscheduler)
-SYSCALL(sys_sched_getscheduler,sys_sched_getscheduler)
-SYSCALL(sys_sched_yield,sys_sched_yield)
-SYSCALL(sys_sched_get_priority_max,sys_sched_get_priority_max)
-SYSCALL(sys_sched_get_priority_min,sys_sched_get_priority_min)	/* 160 */
-SYSCALL(sys_sched_rr_get_interval,compat_sys_sched_rr_get_interval)
-SYSCALL(sys_nanosleep,compat_sys_nanosleep)
-SYSCALL(sys_mremap,compat_sys_mremap)
-SYSCALL(sys_ni_syscall,compat_sys_s390_setresuid16)	/* old setresuid16 syscall */
-SYSCALL(sys_ni_syscall,compat_sys_s390_getresuid16)	/* 165 old getresuid16 syscall */
-NI_SYSCALL						/* for vm86 */
-NI_SYSCALL						/* old sys_query_module */
-SYSCALL(sys_poll,compat_sys_poll)
-NI_SYSCALL						/* old nfsservctl */
-SYSCALL(sys_ni_syscall,compat_sys_s390_setresgid16)	/* 170 old setresgid16 syscall */
-SYSCALL(sys_ni_syscall,compat_sys_s390_getresgid16)	/* old getresgid16 syscall */
-SYSCALL(sys_prctl,compat_sys_prctl)
-SYSCALL(sys_rt_sigreturn,compat_sys_rt_sigreturn)
-SYSCALL(sys_rt_sigaction,compat_sys_rt_sigaction)
-SYSCALL(sys_rt_sigprocmask,compat_sys_rt_sigprocmask)	/* 175 */
-SYSCALL(sys_rt_sigpending,compat_sys_rt_sigpending)
-SYSCALL(sys_rt_sigtimedwait,compat_sys_rt_sigtimedwait)
-SYSCALL(sys_rt_sigqueueinfo,compat_sys_rt_sigqueueinfo)
-SYSCALL(sys_rt_sigsuspend,compat_sys_rt_sigsuspend)
-SYSCALL(sys_pread64,compat_sys_s390_pread64)		/* 180 */
-SYSCALL(sys_pwrite64,compat_sys_s390_pwrite64)
-SYSCALL(sys_ni_syscall,compat_sys_s390_chown16)		/* old chown16 syscall */
-SYSCALL(sys_getcwd,compat_sys_getcwd)
-SYSCALL(sys_capget,compat_sys_capget)
-SYSCALL(sys_capset,compat_sys_capset)			/* 185 */
-SYSCALL(sys_sigaltstack,compat_sys_sigaltstack)
-SYSCALL(sys_sendfile64,compat_sys_sendfile)
-NI_SYSCALL						/* streams1 */
-NI_SYSCALL						/* streams2 */
-SYSCALL(sys_vfork,sys_vfork)				/* 190 */
-SYSCALL(sys_getrlimit,compat_sys_getrlimit)
-SYSCALL(sys_mmap2,compat_sys_s390_mmap2)
-SYSCALL(sys_ni_syscall,compat_sys_s390_truncate64)
-SYSCALL(sys_ni_syscall,compat_sys_s390_ftruncate64)
-SYSCALL(sys_ni_syscall,compat_sys_s390_stat64)		/* 195 */
-SYSCALL(sys_ni_syscall,compat_sys_s390_lstat64)
-SYSCALL(sys_ni_syscall,compat_sys_s390_fstat64)
-SYSCALL(sys_lchown,compat_sys_lchown)
-SYSCALL(sys_getuid,sys_getuid)
-SYSCALL(sys_getgid,sys_getgid)				/* 200 */
-SYSCALL(sys_geteuid,sys_geteuid)
-SYSCALL(sys_getegid,sys_getegid)
-SYSCALL(sys_setreuid,sys_setreuid)
-SYSCALL(sys_setregid,sys_setregid)
-SYSCALL(sys_getgroups,compat_sys_getgroups)		/* 205 */
-SYSCALL(sys_setgroups,compat_sys_setgroups)
-SYSCALL(sys_fchown,sys_fchown)
-SYSCALL(sys_setresuid,sys_setresuid)
-SYSCALL(sys_getresuid,compat_sys_getresuid)
-SYSCALL(sys_setresgid,sys_setresgid)			/* 210 */
-SYSCALL(sys_getresgid,compat_sys_getresgid)
-SYSCALL(sys_chown,compat_sys_chown)
-SYSCALL(sys_setuid,sys_setuid)
-SYSCALL(sys_setgid,sys_setgid)
-SYSCALL(sys_setfsuid,sys_setfsuid)			/* 215 */
-SYSCALL(sys_setfsgid,sys_setfsgid)
-SYSCALL(sys_pivot_root,compat_sys_pivot_root)
-SYSCALL(sys_mincore,compat_sys_mincore)
-SYSCALL(sys_madvise,compat_sys_madvise)
-SYSCALL(sys_getdents64,compat_sys_getdents64)		/* 220 */
-SYSCALL(sys_ni_syscall,compat_sys_fcntl64)
-SYSCALL(sys_readahead,compat_sys_s390_readahead)
-SYSCALL(sys_ni_syscall,compat_sys_sendfile64)
-SYSCALL(sys_setxattr,compat_sys_setxattr)
-SYSCALL(sys_lsetxattr,compat_sys_lsetxattr)		/* 225 */
-SYSCALL(sys_fsetxattr,compat_sys_fsetxattr)
-SYSCALL(sys_getxattr,compat_sys_getxattr)
-SYSCALL(sys_lgetxattr,compat_sys_lgetxattr)
-SYSCALL(sys_fgetxattr,compat_sys_fgetxattr)
-SYSCALL(sys_listxattr,compat_sys_listxattr)		/* 230 */
-SYSCALL(sys_llistxattr,compat_sys_llistxattr)
-SYSCALL(sys_flistxattr,compat_sys_flistxattr)
-SYSCALL(sys_removexattr,compat_sys_removexattr)
-SYSCALL(sys_lremovexattr,compat_sys_lremovexattr)
-SYSCALL(sys_fremovexattr,compat_sys_fremovexattr)	/* 235 */
-SYSCALL(sys_gettid,sys_gettid)
-SYSCALL(sys_tkill,sys_tkill)
-SYSCALL(sys_futex,compat_sys_futex)
-SYSCALL(sys_sched_setaffinity,compat_sys_sched_setaffinity)
-SYSCALL(sys_sched_getaffinity,compat_sys_sched_getaffinity)	/* 240 */
-SYSCALL(sys_tgkill,sys_tgkill)
-NI_SYSCALL						/* reserved for TUX */
-SYSCALL(sys_io_setup,compat_sys_io_setup)
-SYSCALL(sys_io_destroy,compat_sys_io_destroy)
-SYSCALL(sys_io_getevents,compat_sys_io_getevents)	/* 245 */
-SYSCALL(sys_io_submit,compat_sys_io_submit)
-SYSCALL(sys_io_cancel,compat_sys_io_cancel)
-SYSCALL(sys_exit_group,sys_exit_group)
-SYSCALL(sys_epoll_create,sys_epoll_create)
-SYSCALL(sys_epoll_ctl,compat_sys_epoll_ctl)		/* 250 */
-SYSCALL(sys_epoll_wait,compat_sys_epoll_wait)
-SYSCALL(sys_set_tid_address,compat_sys_set_tid_address)
-SYSCALL(sys_fadvise64_64,compat_sys_s390_fadvise64)
-SYSCALL(sys_timer_create,compat_sys_timer_create)
-SYSCALL(sys_timer_settime,compat_sys_timer_settime)	/* 255 */
-SYSCALL(sys_timer_gettime,compat_sys_timer_gettime)
-SYSCALL(sys_timer_getoverrun,sys_timer_getoverrun)
-SYSCALL(sys_timer_delete,sys_timer_delete)
-SYSCALL(sys_clock_settime,compat_sys_clock_settime)
-SYSCALL(sys_clock_gettime,compat_sys_clock_gettime)	/* 260 */
-SYSCALL(sys_clock_getres,compat_sys_clock_getres)
-SYSCALL(sys_clock_nanosleep,compat_sys_clock_nanosleep)
-NI_SYSCALL						/* reserved for vserver */
-SYSCALL(sys_ni_syscall,compat_sys_s390_fadvise64_64)
-SYSCALL(sys_statfs64,compat_sys_statfs64)
-SYSCALL(sys_fstatfs64,compat_sys_fstatfs64)
-SYSCALL(sys_remap_file_pages,compat_sys_remap_file_pages)
-SYSCALL(sys_mbind,compat_sys_mbind)
-SYSCALL(sys_get_mempolicy,compat_sys_get_mempolicy)
-SYSCALL(sys_set_mempolicy,compat_sys_set_mempolicy)
-SYSCALL(sys_mq_open,compat_sys_mq_open)
-SYSCALL(sys_mq_unlink,compat_sys_mq_unlink)
-SYSCALL(sys_mq_timedsend,compat_sys_mq_timedsend)
-SYSCALL(sys_mq_timedreceive,compat_sys_mq_timedreceive)
-SYSCALL(sys_mq_notify,compat_sys_mq_notify)		/* 275 */
-SYSCALL(sys_mq_getsetattr,compat_sys_mq_getsetattr)
-SYSCALL(sys_kexec_load,compat_sys_kexec_load)
-SYSCALL(sys_add_key,compat_sys_add_key)
-SYSCALL(sys_request_key,compat_sys_request_key)
-SYSCALL(sys_keyctl,compat_sys_keyctl)			/* 280 */
-SYSCALL(sys_waitid,compat_sys_waitid)
-SYSCALL(sys_ioprio_set,sys_ioprio_set)
-SYSCALL(sys_ioprio_get,sys_ioprio_get)
-SYSCALL(sys_inotify_init,sys_inotify_init)
-SYSCALL(sys_inotify_add_watch,compat_sys_inotify_add_watch)	/* 285 */
-SYSCALL(sys_inotify_rm_watch,sys_inotify_rm_watch)
-SYSCALL(sys_migrate_pages,compat_sys_migrate_pages)
-SYSCALL(sys_openat,compat_sys_openat)
-SYSCALL(sys_mkdirat,compat_sys_mkdirat)
-SYSCALL(sys_mknodat,compat_sys_mknodat)			/* 290 */
-SYSCALL(sys_fchownat,compat_sys_fchownat)
-SYSCALL(sys_futimesat,compat_sys_futimesat)
-SYSCALL(sys_newfstatat,compat_sys_s390_fstatat64)
-SYSCALL(sys_unlinkat,compat_sys_unlinkat)
-SYSCALL(sys_renameat,compat_sys_renameat)		/* 295 */
-SYSCALL(sys_linkat,compat_sys_linkat)
-SYSCALL(sys_symlinkat,compat_sys_symlinkat)
-SYSCALL(sys_readlinkat,compat_sys_readlinkat)
-SYSCALL(sys_fchmodat,compat_sys_fchmodat)
-SYSCALL(sys_faccessat,compat_sys_faccessat)		/* 300 */
-SYSCALL(sys_pselect6,compat_sys_pselect6)
-SYSCALL(sys_ppoll,compat_sys_ppoll)
-SYSCALL(sys_unshare,compat_sys_unshare)
-SYSCALL(sys_set_robust_list,compat_sys_set_robust_list)
-SYSCALL(sys_get_robust_list,compat_sys_get_robust_list)
-SYSCALL(sys_splice,compat_sys_splice)
-SYSCALL(sys_sync_file_range,compat_sys_s390_sync_file_range)
-SYSCALL(sys_tee,compat_sys_tee)
-SYSCALL(sys_vmsplice,compat_sys_vmsplice)
-SYSCALL(sys_move_pages,compat_sys_move_pages)
-SYSCALL(sys_getcpu,compat_sys_getcpu)
-SYSCALL(sys_epoll_pwait,compat_sys_epoll_pwait)
-SYSCALL(sys_utimes,compat_sys_utimes)
-SYSCALL(sys_fallocate,compat_sys_s390_fallocate)
-SYSCALL(sys_utimensat,compat_sys_utimensat)		/* 315 */
-SYSCALL(sys_signalfd,compat_sys_signalfd)
-NI_SYSCALL						/* 317 old sys_timer_fd */
-SYSCALL(sys_eventfd,sys_eventfd)
-SYSCALL(sys_timerfd_create,sys_timerfd_create)
-SYSCALL(sys_timerfd_settime,compat_sys_timerfd_settime) /* 320 */
-SYSCALL(sys_timerfd_gettime,compat_sys_timerfd_gettime)
-SYSCALL(sys_signalfd4,compat_sys_signalfd4)
-SYSCALL(sys_eventfd2,sys_eventfd2)
-SYSCALL(sys_inotify_init1,sys_inotify_init1)
-SYSCALL(sys_pipe2,compat_sys_pipe2)			/* 325 */
-SYSCALL(sys_dup3,sys_dup3)
-SYSCALL(sys_epoll_create1,sys_epoll_create1)
-SYSCALL(sys_preadv,compat_sys_preadv)
-SYSCALL(sys_pwritev,compat_sys_pwritev)
-SYSCALL(sys_rt_tgsigqueueinfo,compat_sys_rt_tgsigqueueinfo) /* 330 */
-SYSCALL(sys_perf_event_open,compat_sys_perf_event_open)
-SYSCALL(sys_fanotify_init,sys_fanotify_init)
-SYSCALL(sys_fanotify_mark,compat_sys_fanotify_mark)
-SYSCALL(sys_prlimit64,compat_sys_prlimit64)
-SYSCALL(sys_name_to_handle_at,compat_sys_name_to_handle_at) /* 335 */
-SYSCALL(sys_open_by_handle_at,compat_sys_open_by_handle_at)
-SYSCALL(sys_clock_adjtime,compat_sys_clock_adjtime)
-SYSCALL(sys_syncfs,sys_syncfs)
-SYSCALL(sys_setns,sys_setns)
-SYSCALL(sys_process_vm_readv,compat_sys_process_vm_readv) /* 340 */
-SYSCALL(sys_process_vm_writev,compat_sys_process_vm_writev)
-SYSCALL(sys_s390_runtime_instr,sys_s390_runtime_instr)
-SYSCALL(sys_kcmp,compat_sys_kcmp)
-SYSCALL(sys_finit_module,compat_sys_finit_module)
-SYSCALL(sys_sched_setattr,compat_sys_sched_setattr)	/* 345 */
-SYSCALL(sys_sched_getattr,compat_sys_sched_getattr)
-SYSCALL(sys_renameat2,compat_sys_renameat2)
-SYSCALL(sys_seccomp,compat_sys_seccomp)
-SYSCALL(sys_getrandom,compat_sys_getrandom)
-SYSCALL(sys_memfd_create,compat_sys_memfd_create)	/* 350 */
-SYSCALL(sys_bpf,compat_sys_bpf)
-SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
-SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
-SYSCALL(sys_execveat,compat_sys_execveat)
-SYSCALL(sys_userfaultfd,sys_userfaultfd)		/* 355 */
-SYSCALL(sys_membarrier,sys_membarrier)
-SYSCALL(sys_recvmmsg,compat_sys_recvmmsg)
-SYSCALL(sys_sendmmsg,compat_sys_sendmmsg)
-SYSCALL(sys_socket,sys_socket)
-SYSCALL(sys_socketpair,compat_sys_socketpair)		/* 360 */
-SYSCALL(sys_bind,compat_sys_bind)
-SYSCALL(sys_connect,compat_sys_connect)
-SYSCALL(sys_listen,sys_listen)
-SYSCALL(sys_accept4,compat_sys_accept4)
-SYSCALL(sys_getsockopt,compat_sys_getsockopt)		/* 365 */
-SYSCALL(sys_setsockopt,compat_sys_setsockopt)
-SYSCALL(sys_getsockname,compat_sys_getsockname)
-SYSCALL(sys_getpeername,compat_sys_getpeername)
-SYSCALL(sys_sendto,compat_sys_sendto)
-SYSCALL(sys_sendmsg,compat_sys_sendmsg)			/* 370 */
-SYSCALL(sys_recvfrom,compat_sys_recvfrom)
-SYSCALL(sys_recvmsg,compat_sys_recvmsg)
-SYSCALL(sys_shutdown,sys_shutdown)
-SYSCALL(sys_mlock2,compat_sys_mlock2)
-SYSCALL(sys_copy_file_range,compat_sys_copy_file_range) /* 375 */
-SYSCALL(sys_preadv2,compat_sys_preadv2)
-SYSCALL(sys_pwritev2,compat_sys_pwritev2)
-SYSCALL(sys_s390_guarded_storage,compat_sys_s390_guarded_storage) /* 378 */
-SYSCALL(sys_statx,compat_sys_statx)
-SYSCALL(sys_s390_sthyi,compat_sys_s390_sthyi)

arch/s390/kernel/syscalls/Makefile

+# SPDX-License-Identifier: GPL-2.0
+
+gen	:= arch/$(ARCH)/include/generated
+kapi	:= $(gen)/asm
+uapi	:= $(gen)/uapi/asm
+
+syscall	:= $(srctree)/$(src)/syscall.tbl
+systbl	:= $(srctree)/$(src)/syscalltbl
+
+gen-y := $(kapi)/syscall_table.h
+kapi-hdrs-y := $(kapi)/unistd_nr.h
+uapi-hdrs-y := $(uapi)/unistd_32.h
+uapi-hdrs-y += $(uapi)/unistd_64.h
+
+targets += $(addprefix ../../../,$(gen-y) $(kapi-hdrs-y) $(uapi-hdrs-y))
+
+PHONY += kapi uapi
+
+kapi:	$(gen-y) $(kapi-hdrs-y)
+uapi:	$(uapi-hdrs-y)
+
+
+# Create output directory if not already present
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \
+	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+define filechk_syshdr
+	$(CONFIG_SHELL) '$(systbl)' -H -a $(syshdr_abi_$(basetarget)) -f "$2"
+endef
+
+define filechk_sysnr
+	$(CONFIG_SHELL) '$(systbl)' -N -a $(sysnr_abi_$(basetarget))
+endef
+
+define filechk_syscalls
+	$(CONFIG_SHELL) '$(systbl)' -S
+endef
+
+syshdr_abi_unistd_32 := common,32
+$(uapi)/unistd_32.h: $(syscall) FORCE
+	$(call filechk,syshdr,$@)
+
+syshdr_abi_unistd_64 := common,64
+$(uapi)/unistd_64.h: $(syscall) FORCE
+	$(call filechk,syshdr,$@)
+
+$(kapi)/syscall_table.h: $(syscall) FORCE
+	$(call filechk,syscalls)
+
+sysnr_abi_unistd_nr := common,32,64
+$(kapi)/unistd_nr.h: $(syscall) FORCE
+	$(call filechk,sysnr)

arch/s390/kernel/syscalls/syscalltbl

+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Generate system call table and header files
+#
+# Copyright IBM Corp. 2018
+# Author(s):  Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+
+#
+# File path to the system call table definition.
+# You can set the path with the -i option.  If omitted,
+# system call table definitions are read from standard input.
+#
+SYSCALL_TBL=""
+
+
+create_syscall_table_entries()
+{
+	local nr abi name entry64 entry32 _ignore
+	local temp=$(mktemp ${TMPDIR:-/tmp}/syscalltbl-common.XXXXXXXXX)
+
+	(
+	#
+	# Initialize with 0 to create an NI_SYSCALL for 0
+	#
+	local prev_nr=0 prev_32=sys_ni_syscall prev_64=sys_ni_syscall
+	while read nr abi name entry64 entry32 _ignore; do
+		test x$entry32 = x- && entry32=sys_ni_syscall
+		test x$entry64 = x- && entry64=sys_ni_syscall
+
+		if test $prev_nr -eq $nr; then
+			#
+			# Same syscall but different ABI, just update
+			# the respective entry point
+			#
+			case $abi in
+			32)
+				prev_32=$entry32
+			;;
+			64)
+				prev_64=$entry64
+			;;
+			esac
+			continue;
+		else
+			printf "%d\t%s\t%s\n" $prev_nr $prev_64 $prev_32
+		fi
+
+		prev_nr=$nr
+		prev_64=$entry64
+		prev_32=$entry32
+	done
+	printf "%d\t%s\t%s\n" $prev_nr $prev_64 $prev_32
+	) >> $temp
+
+	#
+	# Check for duplicate syscall numbers
+	#
+	if ! cat $temp |cut -f1 |uniq -d 2>&1; then
+		echo "Error: generated system call table contains duplicate entries: $temp" >&2
+		exit 1
+	fi
+
+	#
+	# Generate syscall table
+	#
+	prev_nr=0
+	while read nr entry64 entry32; do
+		while test $prev_nr -lt $((nr - 1)); do
+			printf "NI_SYSCALL\n"
+			prev_nr=$((prev_nr + 1))
+		done
+		if test x$entry64 = xsys_ni_syscall &&
+		   test x$entry32 = xsys_ni_syscall; then
+			printf "NI_SYSCALL\n"
+		else
+			printf "SYSCALL(%s,%s)\n" $entry64 $entry32
+		fi
+		prev_nr=$nr
+	done < $temp
+	rm $temp
+}
+
+generate_syscall_table()
+{
+	cat <<-EoHEADER
+	/* SPDX-License-Identifier: GPL-2.0 */
+	/*
+	 * Definitions for sys_call_table, each line represents an
+	 * entry in the table in the form
+	 * SYSCALL(64 bit syscall, 31 bit emulated syscall)
+	 *
+	 * This file is meant to be included from entry.S.
+	 */
+
+	#define NI_SYSCALL SYSCALL(sys_ni_syscall,sys_ni_syscall)
+
+EoHEADER
+	grep -Ev '^(#|[[:blank:]]*$)' $SYSCALL_TBL	\
+		|sort -k1 -n				\
+		|create_syscall_table_entries
+}
+
+create_header_defines()
+{
+	local nr abi name _ignore
+
+	while read nr abi name _ignore; do
+		printf "#define __NR_%s %d\n" $name $nr
+	done
+}
+
+normalize_fileguard()
+{
+	local fileguard="$1"
+
+	echo "$1" |tr '[[:lower:]]' '[[:upper:]]' \
+		  |sed -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'
+}
+
+generate_syscall_header()
+{
+	local abis=$(echo "($1)" | tr ',' '|')
+	local filename="$2"
+	local fileguard suffix
+
+	if test "$filename"; then
+		fileguard=$(normalize_fileguard "__UAPI_ASM_S390_$2")
+	else
+		case "$abis" in
+		*64*) suffix=64 ;;
+		*32*) suffix=32 ;;
+		esac
+		fileguard=$(normalize_fileguard "__UAPI_ASM_S390_SYSCALLS_$suffix")
+	fi
+
+	cat <<-EoHEADER
+	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+	#ifndef ${fileguard}
+	#define ${fileguard}
+
+EoHEADER
+
+	grep -E "^[[:digit:]]+[[:space:]]+${abis}" $SYSCALL_TBL	\
+		|sort -k1 -n					\
+		|create_header_defines
+
+	cat <<-EoFOOTER
+
+	#endif /* ${fileguard} */
+EoFOOTER
+}
+
+__max_syscall_nr()
+{
+	local abis=$(echo "($1)" | tr ',' '|')
+
+	grep -E "^[[:digit:]]+[[:space:]]+${abis}" $SYSCALL_TBL	 \
+		|sed -ne 's/^\([[:digit:]]*\)[[:space:]].*/\1/p' \
+		|sort -n					 \
+		|tail -1
+}
+
+
+generate_syscall_nr()
+{
+	local abis="$1"
+	local max_syscall_nr num_syscalls
+
+	max_syscall_nr=$(__max_syscall_nr "$abis")
+	num_syscalls=$((max_syscall_nr + 1))
+
+	cat <<-EoHEADER
+	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+	#ifndef __ASM_S390_SYSCALLS_NR
+	#define __ASM_S390_SYSCALLS_NR
+
+	#define NR_syscalls ${num_syscalls}
+
+	#endif /* __ASM_S390_SYSCALLS_NR */
+EoHEADER
+}
+
+
+#
+# Parse command line arguments
+#
+do_syscall_header=""
+do_syscall_table=""
+do_syscall_nr=""
+output_file=""
+abi_list="common,64"
+filename=""
+while getopts ":HNSXi:a:f:" arg; do
+	case $arg in
+	a)
+		abi_list="$OPTARG"
+		;;
+	i)
+		SYSCALL_TBL="$OPTARG"
+		;;
+	f)
+		filename=${OPTARG##*/}
+		;;
+	H)
+		do_syscall_header=1
+		;;
+	N)
+		do_syscall_nr=1
+		;;
+	S)
+		do_syscall_table=1
+		;;
+	X)
+		set -x
+		;;
+	:)
+		echo "Missing argument for -$OPTARG" >&2
+		exit 1
+	;;
+	\?)
+		echo "Invalid option specified" >&2
+		exit 1
+	;;
+	esac
+done
+
+test "$do_syscall_header" && generate_syscall_header "$abi_list" "$filename"
+test "$do_syscall_table" && generate_syscall_table
+test "$do_syscall_nr" && generate_syscall_nr "$abi_list"
+
+exit 0

arch/s390/kernel/vdso32/Makefile

@@ -10,6 +10,9 @@ obj-vdso32 = gettimeofday.o clock_getres.o clock_gettime.o note.o getcpu.o
 targets := $(obj-vdso32) vdso32.so vdso32.so.dbg
 obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
 
+KBUILD_AFLAGS += -DBUILD_VDSO
+KBUILD_CFLAGS += -DBUILD_VDSO
+
 KBUILD_AFLAGS_31 := $(filter-out -m64,$(KBUILD_AFLAGS))
 KBUILD_AFLAGS_31 += -m31 -s
 

arch/s390/kernel/vdso32/clock_getres.S

@@ -9,13 +9,14 @@
 #include <asm/vdso.h>
 #include <asm/asm-offsets.h>
 #include <asm/unistd.h>
+#include <asm/dwarf.h>
 
 	.text
 	.align 4
 	.globl __kernel_clock_getres
 	.type  __kernel_clock_getres,@function
 __kernel_clock_getres:
-	.cfi_startproc
+	CFI_STARTPROC
 	basr	%r1,0
 	la	%r1,4f-.(%r1)
 	chi	%r2,__CLOCK_REALTIME
@@ -37,7 +38,7 @@ __kernel_clock_getres:
 3:	lhi	%r1,__NR_clock_getres		/* fallback to svc */
 	svc	0
 	br	%r14
+	CFI_ENDPROC
 4:	.long	__CLOCK_REALTIME_RES
 5:	.long	__CLOCK_COARSE_RES
-	.cfi_endproc
 	.size	__kernel_clock_getres,.-__kernel_clock_getres

arch/s390/kernel/vdso32/clock_gettime.S

@@ -9,14 +9,17 @@
 #include <asm/vdso.h>
 #include <asm/asm-offsets.h>
 #include <asm/unistd.h>
+#include <asm/dwarf.h>
 
 	.text
 	.align 4
 	.globl __kernel_clock_gettime
 	.type  __kernel_clock_gettime,@function
 __kernel_clock_gettime:
-	.cfi_startproc
+	CFI_STARTPROC
 	ahi	%r15,-16
+	CFI_DEF_CFA_OFFSET 176
+	CFI_VAL_OFFSET 15, -160
 	basr	%r5,0
 0:	al	%r5,21f-0b(%r5)			/* get &_vdso_data */
 	chi	%r2,__CLOCK_REALTIME_COARSE
@@ -69,9 +72,13 @@ __kernel_clock_gettime:
 	st	%r1,4(%r3)			/* store tp->tv_nsec */
 	lhi	%r2,0
 	ahi	%r15,16
+	CFI_DEF_CFA_OFFSET 160
+	CFI_RESTORE 15
 	br	%r14
 
 	/* CLOCK_MONOTONIC_COARSE */
+	CFI_DEF_CFA_OFFSET 176
+	CFI_VAL_OFFSET 15, -160
 9:	l	%r4,__VDSO_UPD_COUNT+4(%r5)	/* load update counter */
 	tml	%r4,0x0001			/* pending update ? loop */
 	jnz	9b
@@ -151,15 +158,21 @@ __kernel_clock_gettime:
 	st	%r1,4(%r3)			/* store tp->tv_nsec */
 	lhi	%r2,0
 	ahi	%r15,16
+	CFI_DEF_CFA_OFFSET 160
+	CFI_RESTORE 15
 	br	%r14
 
 	/* Fallback to system call */
+	CFI_DEF_CFA_OFFSET 176
+	CFI_VAL_OFFSET 15, -160
 19:	lhi	%r1,__NR_clock_gettime
 	svc	0
 	ahi	%r15,16
+	CFI_DEF_CFA_OFFSET 160
+	CFI_RESTORE 15
 	br	%r14
+	CFI_ENDPROC
 
 20:	.long	1000000000
 21:	.long	_vdso_data - 0b
-	.cfi_endproc
 	.size	__kernel_clock_gettime,.-__kernel_clock_gettime

arch/s390/kernel/vdso32/getcpu.S

@@ -8,13 +8,14 @@
  */
 #include <asm/vdso.h>
 #include <asm/asm-offsets.h>
+#include <asm/dwarf.h>
 
 	.text
 	.align 4
 	.globl __kernel_getcpu
 	.type  __kernel_getcpu,@function
 __kernel_getcpu:
-	.cfi_startproc
+	CFI_STARTPROC
 	la	%r4,0
 	sacf	256
 	l	%r5,__VDSO_CPU_NR(%r4)
@@ -28,5 +29,5 @@ __kernel_getcpu:
 	st	%r4,0(%r3)
 3:	lhi	%r2,0
 	br	%r14
-	.cfi_endproc
+	CFI_ENDPROC
 	.size	__kernel_getcpu,.-__kernel_getcpu

arch/s390/kernel/vdso32/gettimeofday.S

@@ -9,14 +9,17 @@
 #include <asm/vdso.h>
 #include <asm/asm-offsets.h>
 #include <asm/unistd.h>
+#include <asm/dwarf.h>
 
 	.text
 	.align 4
 	.globl __kernel_gettimeofday
 	.type  __kernel_gettimeofday,@function
 __kernel_gettimeofday:
-	.cfi_startproc
+	CFI_STARTPROC
 	ahi	%r15,-16
+	CFI_ADJUST_CFA_OFFSET 16
+	CFI_VAL_OFFSET 15, -160
 	basr	%r5,0
 0:	al	%r5,13f-0b(%r5)			/* get &_vdso_data */
 1:	ltr	%r3,%r3				/* check if tz is NULL */
@@ -89,9 +92,11 @@ __kernel_gettimeofday:
 	st	%r0,4(%r2)			/* store tv->tv_usec */
 10:	slr	%r2,%r2
 	ahi	%r15,16
+	CFI_ADJUST_CFA_OFFSET -16
+	CFI_RESTORE 15
 	br	%r14
+	CFI_ENDPROC
 11:	.long	1000000000
 12:	.long	274877907
 13:	.long	_vdso_data - 0b
-	.cfi_endproc
 	.size	__kernel_gettimeofday,.-__kernel_gettimeofday

arch/s390/kernel/vdso64/Makefile

@@ -10,6 +10,9 @@ obj-vdso64 = gettimeofday.o clock_getres.o clock_gettime.o note.o getcpu.o
 targets := $(obj-vdso64) vdso64.so vdso64.so.dbg
 obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64))
 
+KBUILD_AFLAGS += -DBUILD_VDSO
+KBUILD_CFLAGS += -DBUILD_VDSO
+
 KBUILD_AFLAGS_64 := $(filter-out -m64,$(KBUILD_AFLAGS))
 KBUILD_AFLAGS_64 += -m64 -s
 

arch/s390/kernel/vdso64/clock_getres.S

@@ -9,13 +9,14 @@
 #include <asm/vdso.h>
 #include <asm/asm-offsets.h>
 #include <asm/unistd.h>
+#include <asm/dwarf.h>
 
 	.text
 	.align 4
 	.globl __kernel_clock_getres
 	.type  __kernel_clock_getres,@function
 __kernel_clock_getres:
-	.cfi_startproc
+	CFI_STARTPROC
 	larl	%r1,4f
 	cghi	%r2,__CLOCK_REALTIME_COARSE
 	je	0f
@@ -43,7 +44,7 @@ __kernel_clock_getres:
 2:	lghi	%r1,__NR_clock_getres		/* fallback to svc */
 	svc	0
 	br	%r14
+	CFI_ENDPROC
 3:	.quad	__CLOCK_REALTIME_RES
 4:	.quad	__CLOCK_COARSE_RES
-	.cfi_endproc
 	.size	__kernel_clock_getres,.-__kernel_clock_getres

arch/s390/kernel/vdso64/clock_gettime.S

@@ -9,14 +9,17 @@
 #include <asm/vdso.h>
 #include <asm/asm-offsets.h>
 #include <asm/unistd.h>
+#include <asm/dwarf.h>
 
 	.text
 	.align 4
 	.globl __kernel_clock_gettime
 	.type  __kernel_clock_gettime,@function
 __kernel_clock_gettime:
-	.cfi_startproc
+	CFI_STARTPROC
 	aghi	%r15,-16
+	CFI_DEF_CFA_OFFSET 176
+	CFI_VAL_OFFSET 15, -160
 	larl	%r5,_vdso_data
 	cghi	%r2,__CLOCK_REALTIME_COARSE
 	je	4f
@@ -53,9 +56,13 @@ __kernel_clock_gettime:
 	stg	%r1,8(%r3)			/* store tp->tv_nsec */
 	lghi	%r2,0
 	aghi	%r15,16
+	CFI_DEF_CFA_OFFSET 160
+	CFI_RESTORE 15
 	br	%r14
 
 	/* CLOCK_MONOTONIC_COARSE */
+	CFI_DEF_CFA_OFFSET 176
+	CFI_VAL_OFFSET 15, -160
 3:	lg	%r4,__VDSO_UPD_COUNT(%r5)	/* load update counter */
 	tmll	%r4,0x0001			/* pending update ? loop */
 	jnz	3b
@@ -108,9 +115,13 @@ __kernel_clock_gettime:
 	stg	%r1,8(%r3)			/* store tp->tv_nsec */
 	lghi	%r2,0
 	aghi	%r15,16
+	CFI_DEF_CFA_OFFSET 160
+	CFI_RESTORE 15
 	br	%r14
 
 	/* CPUCLOCK_VIRT for this thread */
+	CFI_DEF_CFA_OFFSET 176
+	CFI_VAL_OFFSET 15, -160
 9:	lghi	%r4,0
 	icm	%r0,15,__VDSO_ECTG_OK(%r5)
 	jz	12f
@@ -131,15 +142,21 @@ __kernel_clock_gettime:
 	stg	%r4,8(%r3)
 	lghi	%r2,0
 	aghi	%r15,16
+	CFI_DEF_CFA_OFFSET 160
+	CFI_RESTORE 15
 	br	%r14
 
 	/* Fallback to system call */
+	CFI_DEF_CFA_OFFSET 176
+	CFI_VAL_OFFSET 15, -160
 12:	lghi	%r1,__NR_clock_gettime
 	svc	0
 	aghi	%r15,16
+	CFI_DEF_CFA_OFFSET 160
+	CFI_RESTORE 15
 	br	%r14
+	CFI_ENDPROC
 
 13:	.quad	1000000000
 14:	.quad	19342813113834067
-	.cfi_endproc
 	.size	__kernel_clock_gettime,.-__kernel_clock_gettime

arch/s390/kernel/vdso64/getcpu.S

@@ -8,13 +8,14 @@
  */
 #include <asm/vdso.h>
 #include <asm/asm-offsets.h>
+#include <asm/dwarf.h>
 
 	.text
 	.align 4
 	.globl __kernel_getcpu
 	.type  __kernel_getcpu,@function
 __kernel_getcpu:
-	.cfi_startproc
+	CFI_STARTPROC
 	la	%r4,0
 	sacf	256
 	l	%r5,__VDSO_CPU_NR(%r4)
@@ -28,5 +29,5 @@ __kernel_getcpu:
 	st	%r4,0(%r3)
 3:	lghi	%r2,0
 	br	%r14
-	.cfi_endproc
+	CFI_ENDPROC
 	.size	__kernel_getcpu,.-__kernel_getcpu

arch/s390/kernel/vdso64/gettimeofday.S

@@ -9,14 +9,17 @@
 #include <asm/vdso.h>
 #include <asm/asm-offsets.h>
 #include <asm/unistd.h>
+#include <asm/dwarf.h>
 
 	.text
 	.align 4
 	.globl __kernel_gettimeofday
 	.type  __kernel_gettimeofday,@function
 __kernel_gettimeofday:
-	.cfi_startproc
+	CFI_STARTPROC
 	aghi	%r15,-16
+	CFI_ADJUST_CFA_OFFSET 16
+	CFI_VAL_OFFSET 15, -160
 	larl	%r5,_vdso_data
 0:	ltgr	%r3,%r3				/* check if tz is NULL */
 	je	1f
@@ -58,8 +61,10 @@ __kernel_gettimeofday:
 	stg	%r0,8(%r2)			/* store tv->tv_usec */
 4:	lghi	%r2,0
 	aghi	%r15,16
+	CFI_ADJUST_CFA_OFFSET -16
+	CFI_RESTORE 15
 	br	%r14
+	CFI_ENDPROC
 5:	.quad	1000000000
 	.long	274877907
-	.cfi_endproc
 	.size	__kernel_gettimeofday,.-__kernel_gettimeofday

arch/s390/kernel/vmlinux.lds.S

@@ -141,4 +141,7 @@ SECTIONS
 
 	/* Sections to be discarded */
 	DISCARDS
+	/DISCARD/ : {
+		*(.eh_frame)
+	}
 }

arch/s390/tools/.gitignore

 gen_facilities
+gen_opcode_table

arch/s390/tools/Makefile

@@ -3,22 +3,33 @@
 # Makefile for s390 specific build tools
 #
 
+kapi := arch/$(ARCH)/include/generated/asm
+kapi-hdrs-y := $(kapi)/facility-defs.h $(kapi)/dis-defs.h
+
+targets += $(addprefix ../../../,$(kapi-hdrs-y))
+PHONY += kapi
+
+kapi:	$(kapi-hdrs-y)
+
 hostprogs-y		    += gen_facilities
 hostprogs-y		    += gen_opcode_table
 
 HOSTCFLAGS_gen_facilities.o += -Wall $(LINUXINCLUDE)
 HOSTCFLAGS_gen_opcode_table.o += -Wall $(LINUXINCLUDE)
 
-define filechk_facilities.h
+# Ensure output directory exists
+_dummy := $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+define filechk_facility-defs.h
 	$(obj)/gen_facilities
 endef
 
-define filechk_dis.h
+define filechk_dis-defs.h
 	( $(obj)/gen_opcode_table < $(srctree)/arch/$(ARCH)/tools/opcodes.txt )
 endef
 
-include/generated/facilities.h: $(obj)/gen_facilities FORCE
-	$(call filechk,facilities.h)
+$(kapi)/facility-defs.h: $(obj)/gen_facilities FORCE
+	$(call filechk,facility-defs.h)
 
-include/generated/dis.h: $(obj)/gen_opcode_table FORCE
-	$(call filechk,dis.h)
+$(kapi)/dis-defs.h: $(obj)/gen_opcode_table FORCE
+	$(call filechk,dis-defs.h)

arch/s390/tools/gen_facilities.c

@@ -128,8 +128,8 @@ static void print_facility_lists(void)
 
 int main(int argc, char **argv)
 {
-	printf("#ifndef __ASM_S390_FACILITIES__\n");
-	printf("#define __ASM_S390_FACILITIES__\n");
+	printf("#ifndef __ASM_S390_FACILITY_DEFS__\n");
+	printf("#define __ASM_S390_FACILITY_DEFS__\n");
 	printf("/*\n");
 	printf(" * DO NOT MODIFY.\n");
 	printf(" *\n");

arch/s390/tools/gen_opcode_table.c

@@ -321,8 +321,8 @@ int main(int argc, char **argv)
 	struct gen_opcode *desc = &_desc;
 
 	read_instructions(desc);
-	printf("#ifndef __S390_GENERATED_DIS_H__\n");
-	printf("#define __S390_GENERATED_DIS_H__\n");
+	printf("#ifndef __S390_GENERATED_DIS_DEFS_H__\n");
+	printf("#define __S390_GENERATED_DIS_DEFS_H__\n");
 	printf("/*\n");
 	printf(" * DO NOT MODIFY.\n");
 	printf(" *\n");

drivers/s390/block/dasd.c

@@ -1393,10 +1393,6 @@ int dasd_term_IO(struct dasd_ccw_req *cqr)
 			DBF_DEV_EVENT(DBF_ERR, device, "%s",
 				      "device gone, retry");
 			break;
-		case -EIO:
-			DBF_DEV_EVENT(DBF_ERR, device, "%s",
-				      "I/O error, retry");
-			break;
 		case -EINVAL:
 			/*
 			 * device not valid so no I/O could be running
@@ -1412,10 +1408,6 @@ int dasd_term_IO(struct dasd_ccw_req *cqr)
 			/* fake rc to success */
 			rc = 0;
 			break;
-		case -EBUSY:
-			DBF_DEV_EVENT(DBF_ERR, device, "%s",
-				      "device busy, retry later");
-			break;
 		default:
 			/* internal error 10 - unknown rc*/
 			snprintf(errorstring, ERRORLENGTH, "10 %d", rc);
@@ -1489,10 +1481,6 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
 		DBF_DEV_EVENT(DBF_WARNING, device, "%s",
 			      "start_IO: device busy, retry later");
 		break;
-	case -ETIMEDOUT:
-		DBF_DEV_EVENT(DBF_WARNING, device, "%s",
-			      "start_IO: request timeout, retry later");
-		break;
 	case -EACCES:
 		/* -EACCES indicates that the request used only a subset of the
 		 * available paths and all these paths are gone. If the lpm of

drivers/s390/block/dasd_eckd.c

@@ -5231,7 +5231,7 @@ static int dasd_hosts_print(struct dasd_device *device, struct seq_file *m)
 	struct dasd_ckd_path_group_entry *entry;
 	struct dasd_ckd_host_information *info;
 	char sysplex[9] = "";
-	int rc, i, j;
+	int rc, i;
 
 	access = kzalloc(sizeof(*access), GFP_NOIO);
 	if (!access) {
@@ -5251,10 +5251,7 @@ static int dasd_hosts_print(struct dasd_device *device, struct seq_file *m)
 		entry = (struct dasd_ckd_path_group_entry *)
 			(info->entry + i * info->entry_size);
 		/* PGID */
-		seq_puts(m, "pgid ");
-		for (j = 0; j < 11; j++)
-			seq_printf(m, "%02x", entry->pgid[j]);
-		seq_putc(m, '\n');
+		seq_printf(m, "pgid %*phN\n", 11, entry->pgid);
 		/* FLAGS */
 		seq_printf(m, "status_flags %02x\n", entry->status_flags);
 		/* SYSPLEX NAME */

drivers/s390/char/sclp_early_core.c

@@ -12,8 +12,8 @@
 #include "sclp.h"
 #include "sclp_rw.h"
 
-char sclp_early_sccb[PAGE_SIZE] __aligned(PAGE_SIZE) __section(data);
-int sclp_init_state __section(data) = sclp_init_state_uninitialized;
+char sclp_early_sccb[PAGE_SIZE] __aligned(PAGE_SIZE) __section(.data);
+int sclp_init_state __section(.data) = sclp_init_state_uninitialized;
 
 void sclp_early_wait_irq(void)
 {