[PATCH] consolidate sys32/compat_adjtimex

Create compat_sys_adjtimex and use it an all appropriate places.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 5 insertions, 66 deletions

diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 9809264f2f4d..5e14de37c17b 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -26,7 +26,6 @@
 #include <linux/resource.h>
 #include <linux/times.h>
 #include <linux/utsname.h>
-#include <linux/timex.h>
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
 #include <linux/sem.h>
@@ -705,66 +704,6 @@ asmlinkage long sys32_sendfile64(int out_fd, int in_fd,
 	return ret;
 }
 
-/* Handle adjtimex compatibility. */
-
-extern int do_adjtimex(struct timex *);
-
-asmlinkage long sys32_adjtimex(struct compat_timex __user *utp)
-{
-	struct timex txc;
-	int ret;
-
-	memset(&txc, 0, sizeof(struct timex));
-
-	if(get_user(txc.modes, &utp->modes) ||
-	   __get_user(txc.offset, &utp->offset) ||
-	   __get_user(txc.freq, &utp->freq) ||
-	   __get_user(txc.maxerror, &utp->maxerror) ||
-	   __get_user(txc.esterror, &utp->esterror) ||
-	   __get_user(txc.status, &utp->status) ||
-	   __get_user(txc.constant, &utp->constant) ||
-	   __get_user(txc.precision, &utp->precision) ||
-	   __get_user(txc.tolerance, &utp->tolerance) ||
-	   __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
-	   __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
-	   __get_user(txc.tick, &utp->tick) ||
-	   __get_user(txc.ppsfreq, &utp->ppsfreq) ||
-	   __get_user(txc.jitter, &utp->jitter) ||
-	   __get_user(txc.shift, &utp->shift) ||
-	   __get_user(txc.stabil, &utp->stabil) ||
-	   __get_user(txc.jitcnt, &utp->jitcnt) ||
-	   __get_user(txc.calcnt, &utp->calcnt) ||
-	   __get_user(txc.errcnt, &utp->errcnt) ||
-	   __get_user(txc.stbcnt, &utp->stbcnt))
-		return -EFAULT;
-
-	ret = do_adjtimex(&txc);
-
-	if(put_user(txc.modes, &utp->modes) ||
-	   __put_user(txc.offset, &utp->offset) ||
-	   __put_user(txc.freq, &utp->freq) ||
-	   __put_user(txc.maxerror, &utp->maxerror) ||
-	   __put_user(txc.esterror, &utp->esterror) ||
-	   __put_user(txc.status, &utp->status) ||
-	   __put_user(txc.constant, &utp->constant) ||
-	   __put_user(txc.precision, &utp->precision) ||
-	   __put_user(txc.tolerance, &utp->tolerance) ||
-	   __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
-	   __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
-	   __put_user(txc.tick, &utp->tick) ||
-	   __put_user(txc.ppsfreq, &utp->ppsfreq) ||
-	   __put_user(txc.jitter, &utp->jitter) ||
-	   __put_user(txc.shift, &utp->shift) ||
-	   __put_user(txc.stabil, &utp->stabil) ||
-	   __put_user(txc.jitcnt, &utp->jitcnt) ||
-	   __put_user(txc.calcnt, &utp->calcnt) ||
-	   __put_user(txc.errcnt, &utp->errcnt) ||
-	   __put_user(txc.stbcnt, &utp->stbcnt))
-		ret = -EFAULT;
-
-	return ret;
-}
-
 #ifdef CONFIG_SYSCTL
 struct __sysctl_args32 {
 	u32 name;
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 50e80138e7ad..199da68bd7be 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -551,10 +551,10 @@ sys32_newuname_wrapper:
 	llgtr	%r2,%r2			# struct new_utsname *
 	jg	s390x_newuname		# branch to system call
 
-	.globl  sys32_adjtimex_wrapper 
-sys32_adjtimex_wrapper:
-	llgtr	%r2,%r2			# struct timex_emu31 *
-	jg	sys32_adjtimex		# branch to system call
+	.globl  compat_sys_adjtimex_wrapper
+compat_sys_adjtimex_wrapper:
+	llgtr	%r2,%r2			# struct compat_timex *
+	jg	compat_sys_adjtimex	# branch to system call
 
 	.globl  sys32_mprotect_wrapper 
 sys32_mprotect_wrapper:
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 7c88d85c3597..2f56654da821 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -132,7 +132,7 @@ SYSCALL(sys_clone_glue,sys_clone_glue,sys32_clone_glue)		/* 120 */
 SYSCALL(sys_setdomainname,sys_setdomainname,sys32_setdomainname_wrapper)
 SYSCALL(sys_newuname,s390x_newuname,sys32_newuname_wrapper)
 NI_SYSCALL							/* modify_ldt for i386 */
-SYSCALL(sys_adjtimex,sys_adjtimex,sys32_adjtimex_wrapper)
+SYSCALL(sys_adjtimex,sys_adjtimex,compat_sys_adjtimex_wrapper)
 SYSCALL(sys_mprotect,sys_mprotect,sys32_mprotect_wrapper)	/* 125 */
 SYSCALL(sys_sigprocmask,sys_sigprocmask,compat_sys_sigprocmask_wrapper)
 NI_SYSCALL							/* old "create module" */