s390/compat: convert to COMPAT_SYSCALL_DEFINEx part 4

Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>

arch/s390/kernel/compat_linux.c

@@ -269,22 +269,22 @@ COMPAT_SYSCALL_DEFINE2(s390_setgroups16, int, gidsetsize, u16 __user *, grouplis
 	return retval;
 }
 
-asmlinkage long sys32_getuid16(void)
+COMPAT_SYSCALL_DEFINE0(s390_getuid16)
 {
 	return high2lowuid(from_kuid_munged(current_user_ns(), current_uid()));
 }
 
-asmlinkage long sys32_geteuid16(void)
+COMPAT_SYSCALL_DEFINE0(s390_geteuid16)
 {
 	return high2lowuid(from_kuid_munged(current_user_ns(), current_euid()));
 }
 
-asmlinkage long sys32_getgid16(void)
+COMPAT_SYSCALL_DEFINE0(s390_getgid16)
 {
 	return high2lowgid(from_kgid_munged(current_user_ns(), current_gid()));
 }
 
-asmlinkage long sys32_getegid16(void)
+COMPAT_SYSCALL_DEFINE0(s390_getegid16)
 {
 	return high2lowgid(from_kgid_munged(current_user_ns(), current_egid()));
 }
@@ -299,12 +299,9 @@ COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, compat_ulong_t, second,
 }
 #endif
 
-asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
+COMPAT_SYSCALL_DEFINE3(s390_truncate64, const char __user *, path, u32, high, u32, low)
 {
-	if ((int)high < 0)
-		return -EINVAL;
-	else
-		return sys_truncate(path, (high << 32) | low);
+	return sys_truncate(path, (unsigned long)high << 32 | low);
 }
 
 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)

arch/s390/kernel/compat_linux.h

@@ -91,12 +91,11 @@ long compat_sys_s390_setfsuid16(u16 uid);
 long compat_sys_s390_setfsgid16(u16 gid);
 long compat_sys_s390_getgroups16(int gidsetsize, u16 __user *grouplist);
 long compat_sys_s390_setgroups16(int gidsetsize, u16 __user *grouplist);
-long sys32_getuid16(void);
-long sys32_geteuid16(void);
-long sys32_getgid16(void);
-long sys32_getegid16(void);
-long sys32_truncate64(const char __user * path, unsigned long high,
-		      unsigned long low);
+long compat_sys_s390_getuid16(void);
+long compat_sys_s390_geteuid16(void);
+long compat_sys_s390_getgid16(void);
+long compat_sys_s390_getegid16(void);
+long compat_sys_s390_truncate64(const char __user *path, u32 high, u32 low);
 long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low);
 long sys32_init_module(void __user *umod, unsigned long len,
 		       const char __user *uargs);

arch/s390/kernel/compat_wrapper.S

@@ -75,8 +75,6 @@ ENTRY(sys32_oldumount_wrapper)
 	llgtr	%r2,%r2			# char *
 	jg	sys_oldumount		# branch to system call
 
-#sys32_getuid16_wrapper			# void
-
 ENTRY(sys32_ptrace_wrapper)
 	lgfr	%r2,%r2			# long
 	lgfr	%r3,%r3			# long
@@ -139,17 +137,11 @@ ENTRY(sys32_brk_wrapper)
 	llgtr	%r2,%r2			# unsigned long
 	jg	sys_brk			# branch to system call
 
-#sys32_getgid16_wrapper			# void
-
 ENTRY(sys32_signal_wrapper)
 	lgfr	%r2,%r2			# int
 	llgtr	%r3,%r3			# __sighandler_t
 	jg	sys_signal
 
-#sys32_geteuid16_wrapper		# void
-
-#sys32_getegid16_wrapper		# void
-
 ENTRY(sys32_acct_wrapper)
 	llgtr	%r2,%r2			# char *
 	jg	sys_acct		# branch to system call
@@ -577,12 +569,6 @@ ENTRY(sys32_capset_wrapper)
 
 #sys32_vfork_wrapper			# done in vfork_glue
 
-ENTRY(sys32_truncate64_wrapper)
-	llgtr	%r2,%r2			# const char *
-	llgfr	%r3,%r3			# unsigned long
-	llgfr	%r4,%r4			# unsigned long
-	jg	sys32_truncate64	# branch to system call
-
 ENTRY(sys32_ftruncate64_wrapper)
 	llgfr	%r2,%r2			# unsigned int
 	llgfr	%r3,%r3			# unsigned long

arch/s390/kernel/syscalls.S

@@ -32,7 +32,7 @@ SYSCALL(sys_getpid,sys_getpid,sys_getpid)			/* 20 */
 SYSCALL(sys_mount,sys_mount,sys32_mount_wrapper)
 SYSCALL(sys_oldumount,sys_oldumount,sys32_oldumount_wrapper)
 SYSCALL(sys_setuid16,sys_ni_syscall,compat_sys_s390_setuid16)	/* old setuid16 syscall*/
-SYSCALL(sys_getuid16,sys_ni_syscall,sys32_getuid16)		/* old getuid16 syscall*/
+SYSCALL(sys_getuid16,sys_ni_syscall,compat_sys_s390_getuid16)	/* old getuid16 syscall*/
 SYSCALL(sys_stime,sys_ni_syscall,sys32_stime_wrapper)		/* 25 old stime syscall */
 SYSCALL(sys_ptrace,sys_ptrace,sys32_ptrace_wrapper)
 SYSCALL(sys_alarm,sys_alarm,sys32_alarm_wrapper)
@@ -55,10 +55,10 @@ SYSCALL(sys_times,sys_times,compat_sys_times_wrapper)
 NI_SYSCALL							/* old prof syscall */
 SYSCALL(sys_brk,sys_brk,sys32_brk_wrapper)			/* 45 */
 SYSCALL(sys_setgid16,sys_ni_syscall,compat_sys_s390_setgid16)	/* old setgid16 syscall*/
-SYSCALL(sys_getgid16,sys_ni_syscall,sys32_getgid16)		/* old getgid16 syscall*/
+SYSCALL(sys_getgid16,sys_ni_syscall,compat_sys_s390_getgid16)	/* old getgid16 syscall*/
 SYSCALL(sys_signal,sys_signal,sys32_signal_wrapper)
-SYSCALL(sys_geteuid16,sys_ni_syscall,sys32_geteuid16)		/* old geteuid16 syscall */
-SYSCALL(sys_getegid16,sys_ni_syscall,sys32_getegid16)		/* 50 old getegid16 syscall */
+SYSCALL(sys_geteuid16,sys_ni_syscall,compat_sys_s390_geteuid16)	/* old geteuid16 syscall */
+SYSCALL(sys_getegid16,sys_ni_syscall,compat_sys_s390_getegid16)	/* 50 old getegid16 syscall */
 SYSCALL(sys_acct,sys_acct,sys32_acct_wrapper)
 SYSCALL(sys_umount,sys_umount,sys32_umount_wrapper)
 NI_SYSCALL							/* old lock syscall */
@@ -201,7 +201,7 @@ NI_SYSCALL							/* streams2 */
 SYSCALL(sys_vfork,sys_vfork,sys_vfork)				/* 190 */
 SYSCALL(sys_getrlimit,sys_getrlimit,compat_sys_getrlimit_wrapper)
 SYSCALL(sys_mmap2,sys_mmap2,sys32_mmap2_wrapper)
-SYSCALL(sys_truncate64,sys_ni_syscall,sys32_truncate64_wrapper)
+SYSCALL(sys_truncate64,sys_ni_syscall,compat_sys_s390_truncate64)
 SYSCALL(sys_ftruncate64,sys_ni_syscall,sys32_ftruncate64_wrapper)
 SYSCALL(sys_stat64,sys_ni_syscall,sys32_stat64_wrapper)		/* 195 */
 SYSCALL(sys_lstat64,sys_ni_syscall,sys32_lstat64_wrapper)