powerpc/syscalls: switch rtas(2) to SYSCALL_DEFINE

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[mpe: Update sys_ni.c for s/ppc_rtas/sys_rtas/]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/include/asm/syscalls.h

@@ -16,7 +16,7 @@ asmlinkage long sys_mmap2(unsigned long addr, size_t len,
 		unsigned long prot, unsigned long flags,
 		unsigned long fd, unsigned long pgoff);
 asmlinkage long ppc64_personality(unsigned long personality);
-asmlinkage int ppc_rtas(struct rtas_args __user *uargs);
+asmlinkage long sys_rtas(struct rtas_args __user *uargs);
 
 #endif /* __KERNEL__ */
 #endif /* __ASM_POWERPC_SYSCALLS_H */

arch/powerpc/include/asm/systbl.h

@@ -260,7 +260,7 @@ COMPAT_SYS_SPU(utimes)
 COMPAT_SYS_SPU(statfs64)
 COMPAT_SYS_SPU(fstatfs64)
 SYSX(sys_ni_syscall,ppc_fadvise64_64,ppc_fadvise64_64)
-PPC_SYS_SPU(rtas)
+SYSCALL_SPU(rtas)
 OLDSYS(debug_setcontext)
 SYSCALL(ni_syscall)
 COMPAT_SYS(migrate_pages)

arch/powerpc/kernel/rtas.c

@@ -26,6 +26,7 @@
 #include <linux/memblock.h>
 #include <linux/slab.h>
 #include <linux/reboot.h>
+#include <linux/syscalls.h>
 
 #include <asm/prom.h>
 #include <asm/rtas.h>
@@ -1050,7 +1051,7 @@ struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
 }
 
 /* We assume to be passed big endian arguments */
-asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
+SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs)
 {
 	struct rtas_args args;
 	unsigned long flags;

arch/powerpc/kernel/systbl.S

@@ -35,7 +35,6 @@
 #endif
 #define SYSCALL_SPU(func)	SYSCALL(func)
 #define COMPAT_SYS_SPU(func)	COMPAT_SYS(func)
-#define PPC_SYS_SPU(func)	PPC_SYS(func)
 #define SYSX_SPU(f, f3264, f32)	SYSX(f, f3264, f32)
 
 .section .rodata,"a"

arch/powerpc/kernel/systbl_chk.c

@@ -31,7 +31,6 @@
 
 #define SYSCALL_SPU(func)	SYSCALL(func)
 #define COMPAT_SYS_SPU(func)	COMPAT_SYS(func)
-#define PPC_SYS_SPU(func)	PPC_SYS(func)
 #define SYSX_SPU(f, f3264, f32)	SYSX(f, f3264, f32)
 
 /* Just insert a marker for ni_syscalls */

arch/powerpc/platforms/cell/spu_callbacks.c

@@ -44,7 +44,6 @@ static void *spu_syscall_table[] = {
 
 #define SYSCALL_SPU(func)	sys_##func,
 #define COMPAT_SYS_SPU(func)	sys_##func,
-#define PPC_SYS_SPU(func)	ppc_##func,
 #define SYSX_SPU(f, f3264, f32)	f,
 
 #include <asm/systbl.h>

kernel/sys_ni.c

@@ -365,7 +365,7 @@ COND_SYSCALL(s390_pci_mmio_write);
 COND_SYSCALL_COMPAT(s390_ipc);
 
 /* powerpc */
-cond_syscall(ppc_rtas);
+COND_SYSCALL(rtas);
 COND_SYSCALL(spu_run);
 COND_SYSCALL(spu_create);
 COND_SYSCALL(subpage_prot);