switch lseek to COMPAT_SYSCALL_DEFINE

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/powerpc/include/asm/systbl.h

@@ -22,7 +22,7 @@ SYSCALL_SPU(chmod)
 SYSCALL_SPU(lchown)
 SYSCALL(ni_syscall)
 OLDSYS(stat)
-SYSX_SPU(sys_lseek,ppc32_lseek,sys_lseek)
+COMPAT_SYS_SPU(lseek)
 SYSCALL_SPU(getpid)
 COMPAT_SYS(mount)
 SYSX(sys_ni_syscall,sys_oldumount,sys_oldumount)

arch/powerpc/kernel/sys_ppc32.c

@@ -146,12 +146,6 @@ asmlinkage long compat_sys_sendfile64_wrapper(u32 out_fd, u32 in_fd,
 			    (off_t __user *)offset, count);
 }
 
-off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
-{
-	/* sign extend n */
-	return sys_lseek(fd, (int)offset, origin);
-}
-
 long compat_sys_truncate(const char __user * path, u32 length)
 {
 	/* sign extend length */