s390/compat: convert system call wrappers to C part 11

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

4 files changed, 21 insertions, 58 deletions

diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 5d7e8cf83bd..1174ea2b5e7 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -65,6 +65,7 @@ typedef u32		compat_caddr_t;
 typedef __kernel_fsid_t	compat_fsid_t;
 typedef s32		compat_key_t;
 typedef s32		compat_timer_t;
+typedef u32		compat_aio_context_t;
 
 typedef s32		compat_int_t;
 typedef s32		compat_long_t;
diff --git a/arch/s390/kernel/compat_wrap.c b/arch/s390/kernel/compat_wrap.c
index 97197b8ab83..76d714e1137 100644
--- a/arch/s390/kernel/compat_wrap.c
+++ b/arch/s390/kernel/compat_wrap.c
@@ -124,3 +124,13 @@ COMPAT_SYSCALL_WRAP3(flistxattr, int, fd, char __user *, list, compat_size_t, si
 COMPAT_SYSCALL_WRAP2(removexattr, const char __user *, path, const char __user *, name);
 COMPAT_SYSCALL_WRAP2(lremovexattr, const char __user *, path, const char __user *, name);
 COMPAT_SYSCALL_WRAP2(fremovexattr, int, fd, const char __user *, name);
+COMPAT_SYSCALL_WRAP1(exit_group, int, error_code);
+COMPAT_SYSCALL_WRAP1(set_tid_address, int __user *, tidptr);
+COMPAT_SYSCALL_WRAP1(epoll_create, int, size);
+COMPAT_SYSCALL_WRAP4(epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event __user *, event);
+COMPAT_SYSCALL_WRAP4(epoll_wait, int, epfd, struct epoll_event __user *, events, int, maxevents, int, timeout);
+COMPAT_SYSCALL_WRAP1(timer_getoverrun, timer_t, timer_id);
+COMPAT_SYSCALL_WRAP1(timer_delete, compat_timer_t, compat_timer_id);
+COMPAT_SYSCALL_WRAP1(io_destroy, compat_aio_context_t, ctx);
+COMPAT_SYSCALL_WRAP3(io_cancel, compat_aio_context_t, ctx_id, struct iocb __user *, iocb, struct io_event __user *, result);
+COMPAT_SYSCALL_WRAP1(mq_unlink, const char __user *, name);
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index f23a462947a..9ada8fbcb8c 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -181,32 +181,6 @@ ENTRY(sys32_sched_getaffinity_wrapper)
 	llgtr	%r4,%r4			# unsigned long *
 	jg	compat_sys_sched_getaffinity
 
-ENTRY(sys32_exit_group_wrapper)
-	lgfr	%r2,%r2			# int
-	jg	sys_exit_group		# branch to system call
-
-ENTRY(sys32_set_tid_address_wrapper)
-	llgtr	%r2,%r2			# int *
-	jg	sys_set_tid_address	# branch to system call
-
-ENTRY(sys_epoll_create_wrapper)
-	lgfr	%r2,%r2			# int
-	jg	sys_epoll_create	# branch to system call
-
-ENTRY(sys_epoll_ctl_wrapper)
-	lgfr	%r2,%r2			# int
-	lgfr	%r3,%r3			# int
-	lgfr	%r4,%r4			# int
-	llgtr	%r5,%r5			# struct epoll_event *
-	jg	sys_epoll_ctl		# branch to system call
-
-ENTRY(sys_epoll_wait_wrapper)
-	lgfr	%r2,%r2			# int
-	llgtr	%r3,%r3			# struct epoll_event *
-	lgfr	%r4,%r4			# int
-	lgfr	%r5,%r5			# int
-	jg	sys_epoll_wait		# branch to system call
-
 ENTRY(sys32_clock_settime_wrapper)
 	lgfr	%r2,%r2			# clockid_t (int)
 	llgtr	%r3,%r3			# struct compat_timespec *
@@ -247,23 +221,11 @@ ENTRY(sys32_timer_gettime_wrapper)
 	llgtr	%r3,%r3			# struct compat_itimerspec *
 	jg	compat_sys_timer_gettime
 
-ENTRY(sys32_timer_getoverrun_wrapper)
-	lgfr	%r2,%r2			# timer_t (int)
-	jg	sys_timer_getoverrun
-
-ENTRY(sys32_timer_delete_wrapper)
-	lgfr	%r2,%r2			# timer_t (int)
-	jg	sys_timer_delete
-
 ENTRY(sys32_io_setup_wrapper)
 	llgfr	%r2,%r2			# unsigned int
 	llgtr	%r3,%r3			# u32 *
 	jg	compat_sys_io_setup
 
-ENTRY(sys32_io_destroy_wrapper)
-	llgfr	%r2,%r2			# (aio_context_t) u32
-	jg	sys_io_destroy
-
 ENTRY(sys32_io_getevents_wrapper)
 	llgfr	%r2,%r2			# (aio_context_t) u32
 	lgfr	%r3,%r3			# long
@@ -278,12 +240,6 @@ ENTRY(sys32_io_submit_wrapper)
 	llgtr	%r4,%r4			# struct iocb **
 	jg	compat_sys_io_submit
 
-ENTRY(sys32_io_cancel_wrapper)
-	llgfr	%r2,%r2			# (aio_context_t) u32
-	llgtr	%r3,%r3			# struct iocb *
-	llgtr	%r4,%r4			# struct io_event *
-	jg	sys_io_cancel
-
 ENTRY(compat_sys_statfs64_wrapper)
 	llgtr	%r2,%r2			# const char *
 	llgfr	%r3,%r3			# compat_size_t
@@ -303,10 +259,6 @@ ENTRY(compat_sys_mq_open_wrapper)
 	llgtr	%r5,%r5			# struct compat_mq_attr *
 	jg	compat_sys_mq_open
 
-ENTRY(sys32_mq_unlink_wrapper)
-	llgtr	%r2,%r2			# const char *
-	jg	sys_mq_unlink
-
 ENTRY(compat_sys_mq_timedsend_wrapper)
 	lgfr	%r2,%r2			# mqd_t
 	llgtr	%r3,%r3			# const char *
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index cb6fc8abb70..927da9cb4d3 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -252,21 +252,21 @@ SYSCALL(sys_sched_getaffinity,sys_sched_getaffinity,sys32_sched_getaffinity_wrap
 SYSCALL(sys_tgkill,sys_tgkill,sys_tgkill_wrapper)
 NI_SYSCALL							/* reserved for TUX */
 SYSCALL(sys_io_setup,sys_io_setup,sys32_io_setup_wrapper)
-SYSCALL(sys_io_destroy,sys_io_destroy,sys32_io_destroy_wrapper)
+SYSCALL(sys_io_destroy,sys_io_destroy,compat_sys_io_destroy)
 SYSCALL(sys_io_getevents,sys_io_getevents,sys32_io_getevents_wrapper)	/* 245 */
 SYSCALL(sys_io_submit,sys_io_submit,sys32_io_submit_wrapper)
-SYSCALL(sys_io_cancel,sys_io_cancel,sys32_io_cancel_wrapper)
-SYSCALL(sys_exit_group,sys_exit_group,sys32_exit_group_wrapper)
-SYSCALL(sys_epoll_create,sys_epoll_create,sys_epoll_create_wrapper)
-SYSCALL(sys_epoll_ctl,sys_epoll_ctl,sys_epoll_ctl_wrapper)	/* 250 */
-SYSCALL(sys_epoll_wait,sys_epoll_wait,sys_epoll_wait_wrapper)
-SYSCALL(sys_set_tid_address,sys_set_tid_address,sys32_set_tid_address_wrapper)
+SYSCALL(sys_io_cancel,sys_io_cancel,compat_sys_io_cancel)
+SYSCALL(sys_exit_group,sys_exit_group,compat_sys_exit_group)
+SYSCALL(sys_epoll_create,sys_epoll_create,compat_sys_epoll_create)
+SYSCALL(sys_epoll_ctl,sys_epoll_ctl,compat_sys_epoll_ctl)	/* 250 */
+SYSCALL(sys_epoll_wait,sys_epoll_wait,compat_sys_epoll_wait)
+SYSCALL(sys_set_tid_address,sys_set_tid_address,compat_sys_set_tid_address)
 SYSCALL(sys_s390_fadvise64,sys_fadvise64_64,compat_sys_s390_fadvise64)
 SYSCALL(sys_timer_create,sys_timer_create,sys32_timer_create_wrapper)
 SYSCALL(sys_timer_settime,sys_timer_settime,sys32_timer_settime_wrapper)	/* 255 */
 SYSCALL(sys_timer_gettime,sys_timer_gettime,sys32_timer_gettime_wrapper)
-SYSCALL(sys_timer_getoverrun,sys_timer_getoverrun,sys32_timer_getoverrun_wrapper)
-SYSCALL(sys_timer_delete,sys_timer_delete,sys32_timer_delete_wrapper)
+SYSCALL(sys_timer_getoverrun,sys_timer_getoverrun,compat_sys_timer_getoverrun)
+SYSCALL(sys_timer_delete,sys_timer_delete,compat_sys_timer_delete)
 SYSCALL(sys_clock_settime,sys_clock_settime,sys32_clock_settime_wrapper)
 SYSCALL(sys_clock_gettime,sys_clock_gettime,sys32_clock_gettime_wrapper)	/* 260 */
 SYSCALL(sys_clock_getres,sys_clock_getres,sys32_clock_getres_wrapper)
@@ -280,7 +280,7 @@ NI_SYSCALL							/* 268 sys_mbind */
 NI_SYSCALL							/* 269 sys_get_mempolicy */
 NI_SYSCALL							/* 270 sys_set_mempolicy */
 SYSCALL(sys_mq_open,sys_mq_open,compat_sys_mq_open_wrapper)
-SYSCALL(sys_mq_unlink,sys_mq_unlink,sys32_mq_unlink_wrapper)
+SYSCALL(sys_mq_unlink,sys_mq_unlink,compat_sys_mq_unlink)
 SYSCALL(sys_mq_timedsend,sys_mq_timedsend,compat_sys_mq_timedsend_wrapper)
 SYSCALL(sys_mq_timedreceive,sys_mq_timedreceive,compat_sys_mq_timedreceive_wrapper)
 SYSCALL(sys_mq_notify,sys_mq_notify,compat_sys_mq_notify_wrapper) /* 275 */