[PATCH 6/8] s390/uapi: Remove 31 bit support from uapi header files

Heiko Carstens
2025-11-13T15:08:05Z

Since the kernel does not support running 31 bit / compat binaries
anymore, remove also the corresponding 31 bit support from uapi header
files.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---
arch/s390/include/uapi/asm/bitsperlong.h | 4 -
arch/s390/include/uapi/asm/ipcbuf.h | 3 -
arch/s390/include/uapi/asm/posix_types.h | 13 ---
arch/s390/include/uapi/asm/ptrace.h | 124 -----------------------
arch/s390/include/uapi/asm/sigcontext.h | 15 ---
arch/s390/include/uapi/asm/stat.h | 70 -------------
arch/s390/include/uapi/asm/unistd.h | 4 -
7 files changed, 233 deletions(-)

diff --git a/arch/s390/include/uapi/asm/bitsperlong.h b/arch/s390/include/uapi/asm/bitsperlong.h
index cceaf47b021a..7af27a985f25 100644
--- a/arch/s390/include/uapi/asm/bitsperlong.h
+++ b/arch/s390/include/uapi/asm/bitsperlong.h
@@ -2,11 +2,7 @@
#ifndef __ASM_S390_BITSPERLONG_H
#define __ASM_S390_BITSPERLONG_H

-#ifndef __s390x__
-#define __BITS_PER_LONG 32
-#else
#define __BITS_PER_LONG 64
-#endif

#include <asm-generic/bitsperlong.h>

diff --git a/arch/s390/include/uapi/asm/ipcbuf.h b/arch/s390/include/uapi/asm/ipcbuf.h
index 1030cd186899..9277e76d6d72 100644
--- a/arch/s390/include/uapi/asm/ipcbuf.h
+++ b/arch/s390/include/uapi/asm/ipcbuf.h
@@ -24,9 +24,6 @@ struct ipc64_perm
__kernel_mode_t mode;
unsigned short __pad1;
unsigned short seq;
-#ifndef __s390x__
- unsigned short __pad2;
-#endif /* ! __s390x__ */
unsigned long __unused1;
unsigned long __unused2;
};
diff --git a/arch/s390/include/uapi/asm/posix_types.h b/arch/s390/include/uapi/asm/posix_types.h
index 1913613e71b6..ad5ab940d192 100644
--- a/arch/s390/include/uapi/asm/posix_types.h
+++ b/arch/s390/include/uapi/asm/posix_types.h
@@ -26,17 +26,6 @@ typedef unsigned short __kernel_old_gid_t;
#define __kernel_old_uid_t __kernel_old_uid_t
#endif

-#ifndef __s390x__
-
-typedef unsigned long __kernel_ino_t;
-typedef unsigned short __kernel_mode_t;
-typedef unsigned short __kernel_ipc_pid_t;
-typedef unsigned short __kernel_uid_t;
-typedef unsigned short __kernel_gid_t;
-typedef int __kernel_ptrdiff_t;
-
-#else /* __s390x__ */
-
typedef unsigned int __kernel_ino_t;
typedef unsigned int __kernel_mode_t;
typedef int __kernel_ipc_pid_t;
@@ -45,8 +34,6 @@ typedef unsigned int __kernel_gid_t;
typedef long __kernel_ptrdiff_t;
typedef unsigned long __kernel_sigset_t; /* at least 32 bits */

-#endif /* __s390x__ */
-
#define __kernel_ino_t __kernel_ino_t
#define __kernel_mode_t __kernel_mode_t
#define __kernel_ipc_pid_t __kernel_ipc_pid_t
diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h
index ea202072f1ad..ea29ba470e5a 100644
--- a/arch/s390/include/uapi/asm/ptrace.h
+++ b/arch/s390/include/uapi/asm/ptrace.h
@@ -14,94 +14,6 @@
* Offsets in the user_regs_struct. They are used for the ptrace
* system call and in entry.S
*/
-#ifndef __s390x__
-
-#define PT_PSWMASK 0x00
-#define PT_PSWADDR 0x04
-#define PT_GPR0 0x08
-#define PT_GPR1 0x0C
-#define PT_GPR2 0x10
-#define PT_GPR3 0x14
-#define PT_GPR4 0x18
-#define PT_GPR5 0x1C
-#define PT_GPR6 0x20
-#define PT_GPR7 0x24
-#define PT_GPR8 0x28
-#define PT_GPR9 0x2C
-#define PT_GPR10 0x30
-#define PT_GPR11 0x34
-#define PT_GPR12 0x38
-#define PT_GPR13 0x3C
-#define PT_GPR14 0x40
-#define PT_GPR15 0x44
-#define PT_ACR0 0x48
-#define PT_ACR1 0x4C
-#define PT_ACR2 0x50
-#define PT_ACR3 0x54
-#define PT_ACR4 0x58
-#define PT_ACR5 0x5C
-#define PT_ACR6 0x60
-#define PT_ACR7 0x64
-#define PT_ACR8 0x68
-#define PT_ACR9 0x6C
-#define PT_ACR10 0x70
-#define PT_ACR11 0x74
-#define PT_ACR12 0x78
-#define PT_ACR13 0x7C
-#define PT_ACR14 0x80
-#define PT_ACR15 0x84
-#define PT_ORIGGPR2 0x88
-#define PT_FPC 0x90
-/*
- * A nasty fact of life that the ptrace api
- * only supports passing of longs.
- */
-#define PT_FPR0_HI 0x98
-#define PT_FPR0_LO 0x9C
-#define PT_FPR1_HI 0xA0
-#define PT_FPR1_LO 0xA4
-#define PT_FPR2_HI 0xA8
-#define PT_FPR2_LO 0xAC
-#define PT_FPR3_HI 0xB0
-#define PT_FPR3_LO 0xB4
-#define PT_FPR4_HI 0xB8
-#define PT_FPR4_LO 0xBC
-#define PT_FPR5_HI 0xC0
-#define PT_FPR5_LO 0xC4
-#define PT_FPR6_HI 0xC8
-#define PT_FPR6_LO 0xCC
-#define PT_FPR7_HI 0xD0
-#define PT_FPR7_LO 0xD4
-#define PT_FPR8_HI 0xD8
-#define PT_FPR8_LO 0XDC
-#define PT_FPR9_HI 0xE0
-#define PT_FPR9_LO 0xE4
-#define PT_FPR10_HI 0xE8
-#define PT_FPR10_LO 0xEC
-#define PT_FPR11_HI 0xF0
-#define PT_FPR11_LO 0xF4
-#define PT_FPR12_HI 0xF8
-#define PT_FPR12_LO 0xFC
-#define PT_FPR13_HI 0x100
-#define PT_FPR13_LO 0x104
-#define PT_FPR14_HI 0x108
-#define PT_FPR14_LO 0x10C
-#define PT_FPR15_HI 0x110
-#define PT_FPR15_LO 0x114
-#define PT_CR_9 0x118
-#define PT_CR_10 0x11C
-#define PT_CR_11 0x120
-#define PT_IEEE_IP 0x13C
-#define PT_LASTOFF PT_IEEE_IP
-#define PT_ENDREGS 0x140-1
-
-#define GPR_SIZE 4
-#define CR_SIZE 4
-
-#define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */
-
-#else /* __s390x__ */
-
#define PT_PSWMASK 0x00
#define PT_PSWADDR 0x08
#define PT_GPR0 0x10
@@ -166,38 +78,6 @@

#define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */

-#endif /* __s390x__ */
-
-#ifndef __s390x__
-
-#define PSW_MASK_PER _AC(0x40000000, UL)
-#define PSW_MASK_DAT _AC(0x04000000, UL)
-#define PSW_MASK_IO _AC(0x02000000, UL)
-#define PSW_MASK_EXT _AC(0x01000000, UL)
-#define PSW_MASK_KEY _AC(0x00F00000, UL)
-#define PSW_MASK_BASE _AC(0x00080000, UL) /* always one */
-#define PSW_MASK_MCHECK _AC(0x00040000, UL)
-#define PSW_MASK_WAIT _AC(0x00020000, UL)
-#define PSW_MASK_PSTATE _AC(0x00010000, UL)
-#define PSW_MASK_ASC _AC(0x0000C000, UL)
-#define PSW_MASK_CC _AC(0x00003000, UL)
-#define PSW_MASK_PM _AC(0x00000F00, UL)
-#define PSW_MASK_RI _AC(0x00000000, UL)
-#define PSW_MASK_EA _AC(0x00000000, UL)
-#define PSW_MASK_BA _AC(0x00000000, UL)
-
-#define PSW_MASK_USER _AC(0x0000FF00, UL)
-
-#define PSW_ADDR_AMODE _AC(0x80000000, UL)
-#define PSW_ADDR_INSN _AC(0x7FFFFFFF, UL)
-
-#define PSW_ASC_PRIMARY _AC(0x00000000, UL)
-#define PSW_ASC_ACCREG _AC(0x00004000, UL)
-#define PSW_ASC_SECONDARY _AC(0x00008000, UL)
-#define PSW_ASC_HOME _AC(0x0000C000, UL)
-
-#else /* __s390x__ */
-
#define PSW_MASK_PER _AC(0x4000000000000000, UL)
#define PSW_MASK_DAT _AC(0x0400000000000000, UL)
#define PSW_MASK_IO _AC(0x0200000000000000, UL)
@@ -224,8 +104,6 @@
#define PSW_ASC_SECONDARY _AC(0x0000800000000000, UL)
#define PSW_ASC_HOME _AC(0x0000C00000000000, UL)

-#endif /* __s390x__ */
-
#define NUM_GPRS 16
#define NUM_FPRS 16
#define NUM_CRS 16
@@ -308,9 +186,7 @@ typedef struct {
#define PER_EM_MASK 0xE8000000UL

typedef struct {
-#ifdef __s390x__
unsigned : 32;
-#endif /* __s390x__ */
unsigned em_branching : 1;
unsigned em_instruction_fetch : 1;
/*
diff --git a/arch/s390/include/uapi/asm/sigcontext.h b/arch/s390/include/uapi/asm/sigcontext.h
index 8b35033334c4..7c90b30c50fd 100644
--- a/arch/s390/include/uapi/asm/sigcontext.h
+++ b/arch/s390/include/uapi/asm/sigcontext.h
@@ -17,24 +17,12 @@
#define __NUM_VXRS_LOW 16
#define __NUM_VXRS_HIGH 16

-#ifndef __s390x__
-
-/* Has to be at least _NSIG_WORDS from asm/signal.h */
-#define _SIGCONTEXT_NSIG 64
-#define _SIGCONTEXT_NSIG_BPW 32
-/* Size of stack frame allocated when calling signal handler. */
-#define __SIGNAL_FRAMESIZE 96
-
-#else /* __s390x__ */
-
/* Has to be at least _NSIG_WORDS from asm/signal.h */
#define _SIGCONTEXT_NSIG 64
#define _SIGCONTEXT_NSIG_BPW 64
/* Size of stack frame allocated when calling signal handler. */
#define __SIGNAL_FRAMESIZE 160

-#endif /* __s390x__ */
-
#define _SIGCONTEXT_NSIG_WORDS (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
#define _SIGMASK_COPY_SIZE (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)

@@ -66,9 +54,6 @@ typedef struct

typedef struct
{
-#ifndef __s390x__
- unsigned long gprs_high[__NUM_GPRS];
-#endif
unsigned long long vxrs_low[__NUM_VXRS_LOW];
__vector128 vxrs_high[__NUM_VXRS_HIGH];
unsigned char __reserved[128];
diff --git a/arch/s390/include/uapi/asm/stat.h b/arch/s390/include/uapi/asm/stat.h
index ac253d23606b..21599298c2f5 100644
--- a/arch/s390/include/uapi/asm/stat.h
+++ b/arch/s390/include/uapi/asm/stat.h
@@ -8,74 +8,6 @@
#ifndef _S390_STAT_H
#define _S390_STAT_H

-#ifndef __s390x__
-struct __old_kernel_stat {
- unsigned short st_dev;
- unsigned short st_ino;
- unsigned short st_mode;
- unsigned short st_nlink;
- unsigned short st_uid;
- unsigned short st_gid;
- unsigned short st_rdev;
- unsigned long st_size;
- unsigned long st_atime;
- unsigned long st_mtime;
- unsigned long st_ctime;
-};
-
-struct stat {
- unsigned short st_dev;
- unsigned short __pad1;
- unsigned long st_ino;
- unsigned short st_mode;
- unsigned short st_nlink;
- unsigned short st_uid;
- unsigned short st_gid;
- unsigned short st_rdev;
- unsigned short __pad2;
- unsigned long st_size;
- unsigned long st_blksize;
- unsigned long st_blocks;
- unsigned long st_atime;
- unsigned long st_atime_nsec;
- unsigned long st_mtime;
- unsigned long st_mtime_nsec;
- unsigned long st_ctime;
- unsigned long st_ctime_nsec;
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-/* This matches struct stat64 in glibc2.1, hence the absolutely
- * insane amounts of padding around dev_t's.
- */
-struct stat64 {
- unsigned long long st_dev;
- unsigned int __pad1;
-#define STAT64_HAS_BROKEN_ST_INO 1
- unsigned long __st_ino;
- unsigned int st_mode;
- unsigned int st_nlink;
- unsigned long st_uid;
- unsigned long st_gid;
- unsigned long long st_rdev;
- unsigned int __pad3;
- long long st_size;
- unsigned long st_blksize;
- unsigned char __pad4[4];
- unsigned long __pad5; /* future possible st_blocks high bits */
- unsigned long st_blocks; /* Number 512-byte blocks allocated. */
- unsigned long st_atime;
- unsigned long st_atime_nsec;
- unsigned long st_mtime;
- unsigned long st_mtime_nsec;
- unsigned long st_ctime;
- unsigned long st_ctime_nsec; /* will be high 32 bits of ctime someday */
- unsigned long long st_ino;
-};
-
-#else /* __s390x__ */
-
struct stat {
unsigned long st_dev;
unsigned long st_ino;
@@ -97,8 +29,6 @@ struct stat {
unsigned long __unused[3];
};

-#endif /* __s390x__ */
-
#define STAT_HAVE_NSEC 1

#endif
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index 01b5fe8b9db6..b0c5afe19db2 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -8,10 +8,6 @@
#ifndef _UAPI_ASM_S390_UNISTD_H_
#define _UAPI_ASM_S390_UNISTD_H_

-#ifdef __s390x__
#include <asm/unistd_64.h>
-#else
-#include <asm/unistd_32.h>
-#endif

#endif /* _UAPI_ASM_S390_UNISTD_H_ */
--
2.48.1