From 3e3511b3c8a5ff68ef7cd3dee8ac9dd9cfe4b2aa Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Mon, 19 Mar 2018 20:48:50 -0400
Subject: sparc: get rid of sys_sparc_pipe() wrappers

just use current_pt_regs()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/entry.S        | 8 --------
 arch/sparc/kernel/sys_sparc_32.c | 4 ++--
 arch/sparc/kernel/sys_sparc_64.c | 4 ++--
 arch/sparc/kernel/syscalls.S     | 3 ---
 arch/sparc/kernel/systbls.h      | 2 +-
 5 files changed, 5 insertions(+), 16 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 358fe4ef08a2..b47917939bc5 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -813,14 +813,6 @@ sunos_execv:
 	b	sys_execve
 	 clr	%i2
 
-	.align	4
-	.globl	sys_sparc_pipe
-sys_sparc_pipe:
-	mov	%o7, %l5
-	add	%sp, STACKFRAME_SZ, %o0		! pt_regs *regs arg
-	call	sparc_pipe
-	 mov	%l5, %o7
-
 	.align	4
 	.globl	sys_sigstack
 sys_sigstack:
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 990703b7cf4d..c47e9423a25c 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -73,7 +73,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way unix traditionally does this, though.
  */
-asmlinkage long sparc_pipe(struct pt_regs *regs)
+SYSCALL_DEFINE0(sparc_pipe)
 {
 	int fd[2];
 	int error;
@@ -81,7 +81,7 @@ asmlinkage long sparc_pipe(struct pt_regs *regs)
 	error = do_pipe_flags(fd, 0);
 	if (error)
 		goto out;
-	regs->u_regs[UREG_I1] = fd[1];
+	current_pt_regs()->u_regs[UREG_I1] = fd[1];
 	error = fd[0];
 out:
 	return error;
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 55416db482ad..c8d759ef783c 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -310,7 +310,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way unix traditionally does this, though.
  */
-SYSCALL_DEFINE1(sparc_pipe_real, struct pt_regs *, regs)
+SYSCALL_DEFINE0(sparc_pipe)
 {
 	int fd[2];
 	int error;
@@ -318,7 +318,7 @@ SYSCALL_DEFINE1(sparc_pipe_real, struct pt_regs *, regs)
 	error = do_pipe_flags(fd, 0);
 	if (error)
 		goto out;
-	regs->u_regs[UREG_I1] = fd[1];
+	current_pt_regs()->u_regs[UREG_I1] = fd[1];
 	error = fd[0];
 out:
 	return error;
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index c5f9ec8c52eb..f4c8fa7a4b35 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -27,9 +27,6 @@ sys32_execveat:
 #endif
 
 	.align	32
-sys_sparc_pipe:
-	ba,pt	%xcc, sys_sparc_pipe_real
-	 add	%sp, PTREGS_OFF, %o0
 sys_nis_syscall:
 	ba,pt	%xcc, c_sys_nis_syscall
 	 add	%sp, PTREGS_OFF, %o0
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 5a01cfe19a0e..0c9434d980d7 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -10,7 +10,7 @@
 #include <asm/utrap.h>
 
 asmlinkage unsigned long sys_getpagesize(void);
-asmlinkage long sparc_pipe(struct pt_regs *regs);
+asmlinkage long sys_sparc_pipe(void);
 asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs);
 asmlinkage long sys_getdomainname(char __user *name, int len);
 void do_rt_sigreturn(struct pt_regs *regs);
-- 
cgit v1.2.3-55-g7522


From dd19958ce8417f4b25d29c7619dbc3929ca8d6d0 Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Mon, 19 Mar 2018 20:58:52 -0400
Subject: sparc: kill useless SIGN... wrappers

SYSCALL_DEFINE and COMPAT_SYSCALL_DEFINE already give argument
normalization.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/sys32.S      | 10 ----------
 arch/sparc/kernel/systbls_64.S | 14 +++++++-------
 2 files changed, 7 insertions(+), 17 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index 7e7011a1e712..fba545787f81 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -40,16 +40,6 @@ STUB:	sra	REG1, 0, REG1; \
 SIGN1(sys32_readahead, compat_sys_readahead, %o0)
 SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
 SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
-SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)
-SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
-SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
-SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
-SIGN1(sys32_select, compat_sys_select, %o0)
-SIGN1(sys32_futex, compat_sys_futex, %o1)
-SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
-SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
-SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
-SIGN2(sys32_renameat2, sys_renameat2, %o0, %o2)
 
 	.globl		sys32_mmap2
 sys32_mmap2:
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 293c1cb31262..a5c7d23cddf0 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -37,7 +37,7 @@ sys_call_table32:
 	.word sys_madvise, sys_vhangup, sys32_truncate64, sys_mincore, sys_getgroups16
 /*80*/	.word sys_setgroups16, sys_getpgrp, sys_setgroups, compat_sys_setitimer, sys32_ftruncate64
 	.word sys_swapon, compat_sys_getitimer, sys_setuid, sys_sethostname, sys_setgid
-/*90*/	.word sys_dup2, sys_setfsuid, compat_sys_fcntl, sys32_select, sys_setfsgid
+/*90*/	.word sys_dup2, sys_setfsuid, compat_sys_fcntl, compat_sys_select, sys_setfsgid
 	.word sys_fsync, sys_setpriority, sys_socket, sys_connect, sys_accept
 /*100*/ .word sys_getpriority, sys32_rt_sigreturn, compat_sys_rt_sigaction, compat_sys_rt_sigprocmask, compat_sys_rt_sigpending
 	.word compat_sys_rt_sigtimedwait, compat_sys_rt_sigqueueinfo, compat_sys_rt_sigsuspend, sys_setresuid, sys_getresuid
@@ -47,7 +47,7 @@ sys_call_table32:
 	.word sys_recvfrom, sys_setreuid16, sys_setregid16, sys_rename, compat_sys_truncate
 /*130*/	.word compat_sys_ftruncate, sys_flock, compat_sys_lstat64, sys_sendto, sys_shutdown
 	.word sys_socketpair, sys_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64
-/*140*/	.word sys_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit
+/*140*/	.word sys_sendfile64, sys_nis_syscall, compat_sys_futex, sys_gettid, compat_sys_getrlimit
 	.word compat_sys_setrlimit, sys_pivot_root, sys_prctl, sys_pciconfig_read, sys_pciconfig_write
 /*150*/	.word sys_nis_syscall, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64
 	.word compat_sys_fcntl64, sys_inotify_rm_watch, compat_sys_statfs, compat_sys_fstatfs, sys_oldumount
@@ -65,15 +65,15 @@ sys_call_table32:
 	.word compat_sys_ipc, sys32_sigreturn, sys_clone, sys_ioprio_get, compat_sys_adjtimex
 /*220*/	.word compat_sys_sigprocmask, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid
 	.word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16
-/*230*/	.word sys32_select, compat_sys_time, sys_splice, compat_sys_stime, compat_sys_statfs64
+/*230*/	.word compat_sys_select, compat_sys_time, sys_splice, compat_sys_stime, compat_sys_statfs64
 	.word compat_sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall
 /*240*/	.word sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler
 	.word sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, compat_sys_sched_rr_get_interval, compat_sys_nanosleep
 /*250*/	.word sys_mremap, compat_sys_sysctl, sys_getsid, sys_fdatasync, sys_nis_syscall
-	.word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep
-/*260*/	.word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
+	.word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, compat_sys_clock_nanosleep
+/*260*/	.word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, compat_sys_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
 	.word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
-/*270*/	.word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
+/*270*/	.word compat_sys_io_submit, sys_io_cancel, compat_sys_io_getevents, compat_sys_mq_open, sys_mq_unlink
 	.word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
 /*280*/	.word sys_tee, sys_add_key, sys_request_key, compat_sys_keyctl, compat_sys_openat
 	.word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64
@@ -88,7 +88,7 @@ sys_call_table32:
 /*330*/	.word compat_sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime
 	.word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev
 /*340*/	.word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
-	.word sys32_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
+	.word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
 /*350*/	.word sys32_execveat, sys_membarrier, sys_userfaultfd, sys_bind, sys_listen
 	.word compat_sys_setsockopt, sys_mlock2, sys_copy_file_range, compat_sys_preadv2, compat_sys_pwritev2
 /*360*/	.word sys_statx
-- 
cgit v1.2.3-55-g7522


From a00a700bdea86442c0d63a6bc7cc9d03a47e1d09 Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Mon, 19 Mar 2018 21:08:33 -0400
Subject: sparc: get rid of remaining SIGN... wrappers

just convert compat_sys_{readahead,fadvise64,fadvise64_64} to
COMPAT_SYSCALL_DEFINE

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/sys32.S       | 28 ----------------------------
 arch/sparc/kernel/sys_sparc32.c | 26 ++++++++++----------------
 arch/sparc/kernel/systbls.h     | 12 ++++++------
 arch/sparc/kernel/systbls_64.S  |  4 ++--
 4 files changed, 18 insertions(+), 52 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index fba545787f81..489ffab918a8 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -13,34 +13,6 @@
 
 	.text
 
-#define SIGN1(STUB,SYSCALL,REG1) \
-	.align	32; \
-	.globl	STUB; \
-STUB:	sethi	%hi(SYSCALL), %g1; \
-	jmpl	%g1 + %lo(SYSCALL), %g0; \
-	sra	REG1, 0, REG1
-
-#define SIGN2(STUB,SYSCALL,REG1,REG2) \
-	.align	32; \
-	.globl	STUB; \
-STUB:	sethi	%hi(SYSCALL), %g1; \
-	sra	REG1, 0, REG1; \
-	jmpl	%g1 + %lo(SYSCALL), %g0; \
-	sra	REG2, 0, REG2
-
-#define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \
-	.align	32; \
-	.globl	STUB; \
-STUB:	sra	REG1, 0, REG1; \
-	sethi	%hi(SYSCALL), %g1; \
-	sra	REG2, 0, REG2; \
-	jmpl	%g1 + %lo(SYSCALL), %g0; \
-	sra	REG3, 0, REG3
-
-SIGN1(sys32_readahead, compat_sys_readahead, %o0)
-SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
-SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
-
 	.globl		sys32_mmap2
 sys32_mmap2:
 	sethi		%hi(sys_mmap), %g1
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 6d964bdefbaa..9b0c569267bf 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -212,30 +212,24 @@ asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
 	return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
 }
 
-asmlinkage long compat_sys_readahead(int fd,
-				     unsigned long offhi,
-				     unsigned long offlo,
-				     compat_size_t count)
+COMPAT_SYSCALL_DEFINE4(readahead, int, fd, u32, offhi, u32, offlo,
+		     compat_size_t, count)
 {
-	return sys_readahead(fd, (offhi << 32) | offlo, count);
+	return sys_readahead(fd, ((u64)offhi << 32) | offlo, count);
 }
 
-long compat_sys_fadvise64(int fd,
-			  unsigned long offhi,
-			  unsigned long offlo,
-			  compat_size_t len, int advice)
+COMPAT_SYSCALL_DEFINE5(fadvise64, int, fd, u32, offhi, u32, offlo,
+			  compat_size_t, len, int, advice)
 {
-	return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
+	return sys_fadvise64_64(fd, ((u64)offhi << 32) | offlo, len, advice);
 }
 
-long compat_sys_fadvise64_64(int fd,
-			     unsigned long offhi, unsigned long offlo,
-			     unsigned long lenhi, unsigned long lenlo,
-			     int advice)
+COMPAT_SYSCALL_DEFINE6(fadvise64_64, int, fd, u32, offhi, u32, offlo,
+			     u32, lenhi, u32, lenlo, int, advice)
 {
 	return sys_fadvise64_64(fd,
-				(offhi << 32) | offlo,
-				(lenhi << 32) | lenlo,
+				((u64)offhi << 32) | offlo,
+				((u64)lenhi << 32) | lenlo,
 				advice);
 }
 
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 0c9434d980d7..4aca08e3ddef 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -77,16 +77,16 @@ asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
 					 unsigned long poshi,
 					 unsigned long poslo);
 asmlinkage long compat_sys_readahead(int fd,
-				     unsigned long offhi,
-				     unsigned long offlo,
+				     unsigned offhi,
+				     unsigned offlo,
 				     compat_size_t count);
 long compat_sys_fadvise64(int fd,
-			  unsigned long offhi,
-			  unsigned long offlo,
+			  unsigned offhi,
+			  unsigned offlo,
 			  compat_size_t len, int advice);
 long compat_sys_fadvise64_64(int fd,
-			     unsigned long offhi, unsigned long offlo,
-			     unsigned long lenhi, unsigned long lenlo,
+			     unsigned offhi, unsigned offlo,
+			     unsigned lenhi, unsigned lenlo,
 			     int advice);
 long sys32_sync_file_range(unsigned int fd,
 			   unsigned long off_high, unsigned long off_low,
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index a5c7d23cddf0..96b6b64ce579 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -60,8 +60,8 @@ sys_call_table32:
 /*190*/	.word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl
 	.word sys_epoll_wait, sys_ioprio_set, sys_getppid, compat_sys_sparc_sigaction, sys_sgetmask
 /*200*/	.word sys_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
-	.word sys32_readahead, sys32_socketcall, sys_syslog, compat_sys_lookup_dcookie, sys32_fadvise64
-/*210*/	.word sys32_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, compat_sys_sysinfo
+	.word compat_sys_readahead, sys32_socketcall, sys_syslog, compat_sys_lookup_dcookie, compat_sys_fadvise64
+/*210*/	.word compat_sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, compat_sys_sysinfo
 	.word compat_sys_ipc, sys32_sigreturn, sys_clone, sys_ioprio_get, compat_sys_adjtimex
 /*220*/	.word compat_sys_sigprocmask, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid
 	.word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16
-- 
cgit v1.2.3-55-g7522


From b925c46c81104d170719b58e10f4375299109b8a Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Mon, 19 Mar 2018 23:08:21 -0400
Subject: sparc: bury a zombie extern that had been that way for twenty years

Back in January 1998, in 2.1.79 check_pending() got taken out and shot.
Users in arch/sparc and arch/sparc64 got converted away from it.  One
of the externs (in arch/sparc) was taken out at the same time.  Two
other (in arch/sparc64/kernel/sys_sparc{,32}.c) got stuck.  The one in
sys_sparc32.c was quietly removed 6 years later by an unrelated
commit.  The last one kept shambling until now.  It's time to end
that depravity, let's bury the body...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/sys_sparc_64.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index c8d759ef783c..180c536602bd 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -523,8 +523,6 @@ asmlinkage void sparc_breakpoint(struct pt_regs *regs)
 	exception_exit(prev_state);
 }
 
-extern void check_pending(int signum);
-
 SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
 {
         int nlen, err;
-- 
cgit v1.2.3-55-g7522


From ee076e81fc14ca79334d02970cea66604f183a14 Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Mon, 19 Mar 2018 23:23:53 -0400
Subject: sparc: trivial conversions to {COMPAT_,}SYSCALL_DEFINE()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/sys_sparc32.c  | 22 +++++++++++-----------
 arch/sparc/kernel/sys_sparc_32.c | 16 ++++++++--------
 arch/sparc/kernel/sys_sparc_64.c |  4 ++--
 arch/sparc/kernel/systbls.h      |  2 +-
 4 files changed, 22 insertions(+), 22 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 9b0c569267bf..d01b99258de2 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -98,8 +98,8 @@ static int cp_compat_stat64(struct kstat *stat,
 	return err;
 }
 
-asmlinkage long compat_sys_stat64(const char __user * filename,
-		struct compat_stat64 __user *statbuf)
+COMPAT_SYSCALL_DEFINE2(stat64, const char __user *, filename,
+		struct compat_stat64 __user *, statbuf)
 {
 	struct kstat stat;
 	int error = vfs_stat(filename, &stat);
@@ -109,8 +109,8 @@ asmlinkage long compat_sys_stat64(const char __user * filename,
 	return error;
 }
 
-asmlinkage long compat_sys_lstat64(const char __user * filename,
-		struct compat_stat64 __user *statbuf)
+COMPAT_SYSCALL_DEFINE2(lstat64, const char __user *, filename,
+		struct compat_stat64 __user *, statbuf)
 {
 	struct kstat stat;
 	int error = vfs_lstat(filename, &stat);
@@ -120,8 +120,8 @@ asmlinkage long compat_sys_lstat64(const char __user * filename,
 	return error;
 }
 
-asmlinkage long compat_sys_fstat64(unsigned int fd,
-		struct compat_stat64 __user * statbuf)
+COMPAT_SYSCALL_DEFINE2(fstat64, unsigned int, fd,
+		struct compat_stat64 __user *, statbuf)
 {
 	struct kstat stat;
 	int error = vfs_fstat(fd, &stat);
@@ -131,9 +131,9 @@ asmlinkage long compat_sys_fstat64(unsigned int fd,
 	return error;
 }
 
-asmlinkage long compat_sys_fstatat64(unsigned int dfd,
-		const char __user *filename,
-		struct compat_stat64 __user * statbuf, int flag)
+COMPAT_SYSCALL_DEFINE4(fstatat64, unsigned int, dfd,
+		const char __user *, filename,
+		struct compat_stat64 __user *, statbuf, int, flag)
 {
 	struct kstat stat;
 	int error;
@@ -241,8 +241,8 @@ long sys32_sync_file_range(unsigned int fd, unsigned long off_high, unsigned lon
 				   flags);
 }
 
-asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
-				     u32 lenhi, u32 lenlo)
+COMPAT_SYSCALL_DEFINE6(fallocate, int, fd, int, mode, u32, offhi, u32, offlo,
+				     u32, lenhi, u32, lenlo)
 {
 	return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
 			     ((loff_t)lenhi << 32) | lenlo);
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index c47e9423a25c..e7d326af76d6 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -34,7 +34,7 @@
 /* XXX Make this per-binary type, this way we can detect the type of
  * XXX a binary.  Every Sparc executable calls this very early on.
  */
-asmlinkage unsigned long sys_getpagesize(void)
+SYSCALL_DEFINE0(getpagesize)
 {
 	return PAGE_SIZE; /* Possibly older binaries want 8192 on sun4's? */
 }
@@ -98,9 +98,9 @@ int sparc_mmap_check(unsigned long addr, unsigned long len)
 
 /* Linux version of mmap */
 
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags, unsigned long fd,
-	unsigned long pgoff)
+SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
+	unsigned long, prot, unsigned long, flags, unsigned long, fd,
+	unsigned long, pgoff)
 {
 	/* Make sure the shift for mmap2 is constant (12), no matter what PAGE_SIZE
 	   we have. */
@@ -108,9 +108,9 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 			      pgoff >> (PAGE_SHIFT - 12));
 }
 
-asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags, unsigned long fd,
-	unsigned long off)
+SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
+	unsigned long, prot, unsigned long, flags, unsigned long, fd,
+	unsigned long, off)
 {
 	/* no alignment check? */
 	return sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
@@ -202,7 +202,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig,
 	return ret;
 }
 
-asmlinkage long sys_getdomainname(char __user *name, int len)
+SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
 {
  	int nlen, err;
  	
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 180c536602bd..c15765539f65 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -39,7 +39,7 @@
 
 /* #define DEBUG_UNIMP_SYSCALL */
 
-asmlinkage unsigned long sys_getpagesize(void)
+SYSCALL_DEFINE0(getpagesize)
 {
 	return PAGE_SIZE;
 }
@@ -642,7 +642,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
 	return ret;
 }
 
-asmlinkage long sys_kern_features(void)
+SYSCALL_DEFINE0(kern_features)
 {
 	return KERN_FEATURE_MIXED_MODE_STACK;
 }
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 4aca08e3ddef..432aa84ad009 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -9,7 +9,7 @@
 
 #include <asm/utrap.h>
 
-asmlinkage unsigned long sys_getpagesize(void);
+asmlinkage long sys_getpagesize(void);
 asmlinkage long sys_sparc_pipe(void);
 asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs);
 asmlinkage long sys_getdomainname(char __user *name, int len);
-- 
cgit v1.2.3-55-g7522


From 6de7617e8892666073a9a8f6ba7e2f7882f4cadc Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Mon, 19 Mar 2018 23:26:39 -0400
Subject: sparc: get rid of memory_ordering(2) wrapper

use current_pt_regs() in it instead

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/sys_sparc_64.c | 4 ++--
 arch/sparc/kernel/syscalls.S     | 3 ---
 arch/sparc/kernel/systbls.h      | 3 +--
 3 files changed, 3 insertions(+), 7 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index c15765539f65..b929414fa9f2 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -606,9 +606,9 @@ SYSCALL_DEFINE5(utrap_install, utrap_entry_t, type,
 	return 0;
 }
 
-asmlinkage long sparc_memory_ordering(unsigned long model,
-				      struct pt_regs *regs)
+SYSCALL_DEFINE1(memory_ordering, unsigned long, model)
 {
+	struct pt_regs *regs = current_pt_regs();
 	if (model >= 3)
 		return -EINVAL;
 	regs->tstate = (regs->tstate & ~TSTATE_MM) | (model << 14);
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index f4c8fa7a4b35..d7d86b95011a 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -30,9 +30,6 @@ sys32_execveat:
 sys_nis_syscall:
 	ba,pt	%xcc, c_sys_nis_syscall
 	 add	%sp, PTREGS_OFF, %o0
-sys_memory_ordering:
-	ba,pt	%xcc, sparc_memory_ordering
-	 add	%sp, PTREGS_OFF, %o1
 #ifdef CONFIG_COMPAT
 sys32_sigstack:
 	ba,pt	%xcc, do_sys32_sigstack
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 432aa84ad009..3352dbac9d55 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -46,8 +46,7 @@ asmlinkage long sys_utrap_install(utrap_entry_t type,
 				  utrap_handler_t new_d,
 				  utrap_handler_t __user *old_p,
 				  utrap_handler_t __user *old_d);
-asmlinkage long sparc_memory_ordering(unsigned long model,
-				      struct pt_regs *regs);
+asmlinkage long sys_memory_ordering(unsigned long model);
 asmlinkage void sparc64_set_context(struct pt_regs *regs);
 asmlinkage void sparc64_get_context(struct pt_regs *regs);
 asmlinkage long sys32_truncate64(const char __user * path,
-- 
cgit v1.2.3-55-g7522


From a0d32ad366bb4235267380b341fcae8307f51044 Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Mon, 19 Mar 2018 23:28:55 -0400
Subject: switch sparc_remap_file_pages() to SYSCALL_DEFINE

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/sys_sparc_32.c | 6 +++---
 arch/sparc/kernel/systbls.h      | 2 +-
 arch/sparc/kernel/systbls_32.S   | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index e7d326af76d6..a927be4a51e7 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -116,9 +116,9 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
 	return sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
 }
 
-long sparc_remap_file_pages(unsigned long start, unsigned long size,
-			   unsigned long prot, unsigned long pgoff,
-			   unsigned long flags)
+SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned long, size,
+			   unsigned long, prot, unsigned long, pgoff,
+			   unsigned long, flags)
 {
 	/* This works on an existing mmap so we don't need to validate
 	 * the range as that was done at the original mmap call.
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 3352dbac9d55..9965273b588b 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -23,7 +23,7 @@ asmlinkage void sparc_breakpoint(struct pt_regs *regs);
 asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 			  unsigned long prot, unsigned long flags,
 			  unsigned long fd, unsigned long pgoff);
-long sparc_remap_file_pages(unsigned long start, unsigned long size,
+long sys_sparc_remap_file_pages(unsigned long start, unsigned long size,
 			    unsigned long prot, unsigned long pgoff,
 			    unsigned long flags);
 
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 731b25d572a1..12bee14b552c 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -55,7 +55,7 @@ sys_call_table:
 /*175*/	.long sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr
 /*180*/	.long sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_sigpending, sys_ni_syscall
 /*185*/	.long sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname
-/*190*/	.long sys_init_module, sys_personality, sparc_remap_file_pages, sys_epoll_create, sys_epoll_ctl
+/*190*/	.long sys_init_module, sys_personality, sys_sparc_remap_file_pages, sys_epoll_create, sys_epoll_ctl
 /*195*/	.long sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_sparc_sigaction, sys_sgetmask
 /*200*/	.long sys_ssetmask, sys_sigsuspend, sys_newlstat, sys_uselib, sys_old_readdir
 /*205*/	.long sys_readahead, sys_socketcall, sys_syslog, sys_lookup_dcookie, sys_fadvise64
-- 
cgit v1.2.3-55-g7522


From 8ccb004677d15ebfd44470e27bc9a399b0e71e4e Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Mon, 19 Mar 2018 23:44:52 -0400
Subject: convert compat sync_file_range() to COMPAT_SYSCALL_DEFINE

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/sys_sparc32.c | 7 ++++---
 arch/sparc/kernel/systbls.h     | 6 +++---
 arch/sparc/kernel/systbls_64.S  | 2 +-
 3 files changed, 8 insertions(+), 7 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index d01b99258de2..b266797fee99 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -233,11 +233,12 @@ COMPAT_SYSCALL_DEFINE6(fadvise64_64, int, fd, u32, offhi, u32, offlo,
 				advice);
 }
 
-long sys32_sync_file_range(unsigned int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, unsigned int flags)
+COMPAT_SYSCALL_DEFINE6(sync_file_range, unsigned int, fd, u32, off_high, u32, off_low,
+			u32, nb_high, u32, nb_low, unsigned int, flags)
 {
 	return sys_sync_file_range(fd,
-				   (off_high << 32) | off_low,
-				   (nb_high << 32) | nb_low,
+				   ((u64)off_high << 32) | off_low,
+				   ((u64)nb_high << 32) | nb_low,
 				   flags);
 }
 
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 9965273b588b..0ff3da78e09b 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -87,9 +87,9 @@ long compat_sys_fadvise64_64(int fd,
 			     unsigned offhi, unsigned offlo,
 			     unsigned lenhi, unsigned lenlo,
 			     int advice);
-long sys32_sync_file_range(unsigned int fd,
-			   unsigned long off_high, unsigned long off_low,
-			   unsigned long nb_high, unsigned long nb_low,
+long compat_sys_sync_file_range(unsigned int fd,
+			   unsigned off_high, unsigned off_low,
+			   unsigned nb_high, unsigned nb_low,
 			   unsigned int flags);
 asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
 				     u32 lenhi, u32 lenlo);
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 96b6b64ce579..9d10daa5a121 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -70,7 +70,7 @@ sys_call_table32:
 /*240*/	.word sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler
 	.word sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, compat_sys_sched_rr_get_interval, compat_sys_nanosleep
 /*250*/	.word sys_mremap, compat_sys_sysctl, sys_getsid, sys_fdatasync, sys_nis_syscall
-	.word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, compat_sys_clock_nanosleep
+	.word compat_sys_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, compat_sys_clock_nanosleep
 /*260*/	.word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, compat_sys_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
 	.word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
 /*270*/	.word compat_sys_io_submit, sys_io_cancel, compat_sys_io_getevents, compat_sys_mq_open, sys_mq_unlink
-- 
cgit v1.2.3-55-g7522


From 8c82ccd63192a3ed66a454fdd70da2a4cc8455a1 Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Mon, 19 Mar 2018 23:48:30 -0400
Subject: sparc: switch compat pread64 and pwrite64 to COMPAT_SYSCALL_DEFINE

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/sys_sparc32.c | 18 ++++++------------
 arch/sparc/kernel/systbls.h     | 12 ++++++------
 arch/sparc/kernel/systbls_64.S  |  2 +-
 3 files changed, 13 insertions(+), 19 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index b266797fee99..50e9e4fdd8c6 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -194,22 +194,16 @@ COMPAT_SYSCALL_DEFINE5(rt_sigaction, int, sig,
         return ret;
 }
 
-asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
-					char __user *ubuf,
-					compat_size_t count,
-					unsigned long poshi,
-					unsigned long poslo)
+COMPAT_SYSCALL_DEFINE5(pread64, unsigned int, fd, char __user *, ubuf,
+			compat_size_t, count, u32, poshi, u32, poslo)
 {
-	return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
+	return sys_pread64(fd, ubuf, count, ((u64)poshi << 32) | poslo);
 }
 
-asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
-					 char __user *ubuf,
-					 compat_size_t count,
-					 unsigned long poshi,
-					 unsigned long poslo)
+COMPAT_SYSCALL_DEFINE5(pwrite64, unsigned int, fd, char __user *, ubuf,
+			compat_size_t, count, u32, poshi, u32, poslo)
 {
-	return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
+	return sys_pwrite64(fd, ubuf, count, ((u64)poshi << 32) | poslo);
 }
 
 COMPAT_SYSCALL_DEFINE4(readahead, int, fd, u32, offhi, u32, offlo,
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 0ff3da78e09b..922c253ee086 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -65,16 +65,16 @@ asmlinkage long compat_sys_fstat64(unsigned int fd,
 asmlinkage long compat_sys_fstatat64(unsigned int dfd,
 				     const char __user *filename,
 				     struct compat_stat64 __user * statbuf, int flag);
-asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
+asmlinkage long compat_sys_pread64(unsigned int fd,
 					char __user *ubuf,
 					compat_size_t count,
-					unsigned long poshi,
-					unsigned long poslo);
-asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
+					u32 poshi,
+					u32 poslo);
+asmlinkage long compat_sys_pwrite64(unsigned int fd,
 					 char __user *ubuf,
 					 compat_size_t count,
-					 unsigned long poshi,
-					 unsigned long poslo);
+					 u32 poshi,
+					 u32 poslo);
 asmlinkage long compat_sys_readahead(int fd,
 				     unsigned offhi,
 				     unsigned offlo,
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 9d10daa5a121..34dde99548b0 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -32,7 +32,7 @@ sys_call_table32:
 /*50*/	.word sys_getegid16, sys_acct, sys_nis_syscall, sys_getgid, compat_sys_ioctl
 	.word sys_reboot, sys32_mmap2, sys_symlink, sys_readlink, sys32_execve
 /*60*/	.word sys_umask, sys_chroot, compat_sys_newfstat, compat_sys_fstat64, sys_getpagesize
-	.word sys_msync, sys_vfork, sys32_pread64, sys32_pwrite64, sys_geteuid
+	.word sys_msync, sys_vfork, compat_sys_pread64, compat_sys_pwrite64, sys_geteuid
 /*70*/	.word sys_getegid, sys_mmap, sys_setreuid, sys_munmap, sys_mprotect
 	.word sys_madvise, sys_vhangup, sys32_truncate64, sys_mincore, sys_getgroups16
 /*80*/	.word sys_setgroups16, sys_getpgrp, sys_setgroups, compat_sys_setitimer, sys32_ftruncate64
-- 
cgit v1.2.3-55-g7522


From 3d0e354e4e51f40a58ae8bff7ded60f0c1f5c618 Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Tue, 20 Mar 2018 10:34:57 -0400
Subject: sparc: switch compat {f,}truncate64() to COMPAT_SYSCALL_DEFINE

... and drop the pointless checks - sys_truncate() itself
might've lacked the check when that stuff was first written,
but it has already grown one by the time that stuff went into
mainline.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/sys_sparc32.c | 14 ++++----------
 arch/sparc/kernel/systbls.h     | 12 ++++++------
 arch/sparc/kernel/systbls_64.S  |  4 ++--
 3 files changed, 12 insertions(+), 18 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 50e9e4fdd8c6..c27e7e9e641b 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -52,20 +52,14 @@
 
 #include "systbls.h"
 
-asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
+COMPAT_SYSCALL_DEFINE3(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, ((u64)high << 32) | low);
 }
 
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
+COMPAT_SYSCALL_DEFINE3(ftruncate64, unsigned int, fd, u32, high, u32, low)
 {
-	if ((int)high < 0)
-		return -EINVAL;
-	else
-		return sys_ftruncate(fd, (high << 32) | low);
+	return sys_ftruncate(fd, ((u64)high << 32) | low);
 }
 
 static int cp_compat_stat64(struct kstat *stat,
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 922c253ee086..1cb02fa28e9c 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -49,12 +49,12 @@ asmlinkage long sys_utrap_install(utrap_entry_t type,
 asmlinkage long sys_memory_ordering(unsigned long model);
 asmlinkage void sparc64_set_context(struct pt_regs *regs);
 asmlinkage void sparc64_get_context(struct pt_regs *regs);
-asmlinkage long sys32_truncate64(const char __user * path,
-				 unsigned long high,
-				 unsigned long low);
-asmlinkage long sys32_ftruncate64(unsigned int fd,
-				  unsigned long high,
-				  unsigned long low);
+asmlinkage long compat_sys_truncate64(const char __user * path,
+				 u32 high,
+				 u32 low);
+asmlinkage long compat_sys_ftruncate64(unsigned int fd,
+				  u32 high,
+				  u32 low);
 struct compat_stat64;
 asmlinkage long compat_sys_stat64(const char __user * filename,
 				  struct compat_stat64 __user *statbuf);
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 34dde99548b0..387ef993880a 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -34,8 +34,8 @@ sys_call_table32:
 /*60*/	.word sys_umask, sys_chroot, compat_sys_newfstat, compat_sys_fstat64, sys_getpagesize
 	.word sys_msync, sys_vfork, compat_sys_pread64, compat_sys_pwrite64, sys_geteuid
 /*70*/	.word sys_getegid, sys_mmap, sys_setreuid, sys_munmap, sys_mprotect
-	.word sys_madvise, sys_vhangup, sys32_truncate64, sys_mincore, sys_getgroups16
-/*80*/	.word sys_setgroups16, sys_getpgrp, sys_setgroups, compat_sys_setitimer, sys32_ftruncate64
+	.word sys_madvise, sys_vhangup, compat_sys_truncate64, sys_mincore, sys_getgroups16
+/*80*/	.word sys_setgroups16, sys_getpgrp, sys_setgroups, compat_sys_setitimer, compat_sys_ftruncate64
 	.word sys_swapon, compat_sys_getitimer, sys_setuid, sys_sethostname, sys_setgid
 /*90*/	.word sys_dup2, sys_setfsuid, compat_sys_fcntl, compat_sys_select, sys_setfsgid
 	.word sys_fsync, sys_setpriority, sys_socket, sys_connect, sys_accept
-- 
cgit v1.2.3-55-g7522


From 47db69752b22de2ac315d094fd09fac31b0d3bfc Mon Sep 17 00:00:00 2001
From: Al Viro
Date: Tue, 20 Mar 2018 10:44:21 -0400
Subject: sparc: get rid of asm wrapper for nis_syscall()

just use current_pt_regs()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/sparc/kernel/entry.S        | 7 -------
 arch/sparc/kernel/sys_sparc_32.c | 5 ++---
 arch/sparc/kernel/sys_sparc_64.c | 4 ++--
 arch/sparc/kernel/syscalls.S     | 3 ---
 arch/sparc/kernel/systbls.h      | 2 +-
 5 files changed, 5 insertions(+), 16 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index b47917939bc5..4d3696973325 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -801,13 +801,6 @@ SUN_PI_(lda	[%l4] ASI_M_MMUREGS, %l5)	! read sfsr last
 	RESTORE_ALL
 
 	.align	4
-	.globl	sys_nis_syscall
-sys_nis_syscall:
-	mov	%o7, %l5
-	add	%sp, STACKFRAME_SZ, %o0		! pt_regs *regs arg
-	call	c_sys_nis_syscall
-	 mov	%l5, %o7
-
 sunos_execv:
 	.globl	sunos_execv
 	b	sys_execve
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index a927be4a51e7..a5df89743e06 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -127,11 +127,10 @@ SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned long, siz
 				    (pgoff >> (PAGE_SHIFT - 12)), flags);
 }
 
-/* we come to here via sys_nis_syscall so it can setup the regs argument */
-asmlinkage unsigned long
-c_sys_nis_syscall (struct pt_regs *regs)
+SYSCALL_DEFINE0(nis_syscall)
 {
 	static int count = 0;
+	struct pt_regs *regs = current_pt_regs();
 
 	if (count++ > 5)
 		return -ENOSYS;
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index b929414fa9f2..c66a396d7afe 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -480,10 +480,10 @@ SYSCALL_DEFINE5(64_mremap, unsigned long, addr,	unsigned long, old_len,
 	return sys_mremap(addr, old_len, new_len, flags, new_addr);
 }
 
-/* we come to here via sys_nis_syscall so it can setup the regs argument */
-asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs)
+SYSCALL_DEFINE0(nis_syscall)
 {
 	static int count;
+	struct pt_regs *regs = current_pt_regs();
 	
 	/* Don't make the system unusable, if someone goes stuck */
 	if (count++ > 5)
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index d7d86b95011a..db42b4fb3708 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -27,9 +27,6 @@ sys32_execveat:
 #endif
 
 	.align	32
-sys_nis_syscall:
-	ba,pt	%xcc, c_sys_nis_syscall
-	 add	%sp, PTREGS_OFF, %o0
 #ifdef CONFIG_COMPAT
 sys32_sigstack:
 	ba,pt	%xcc, do_sys32_sigstack
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 1cb02fa28e9c..bf014267d619 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -11,7 +11,7 @@
 
 asmlinkage long sys_getpagesize(void);
 asmlinkage long sys_sparc_pipe(void);
-asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs);
+asmlinkage long sys_nis_syscall(void);
 asmlinkage long sys_getdomainname(char __user *name, int len);
 void do_rt_sigreturn(struct pt_regs *regs);
 asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
-- 
cgit v1.2.3-55-g7522