powerpc: split ret_from_fork

... and get rid of in-kernel syscalls in kernel_thread()

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

1 files changed, 0 insertions, 33 deletions

diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 407e293aad2f..19e096bd0e73 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -663,39 +663,6 @@ _GLOBAL(abs)
         sub     r3,r3,r4
         blr
 
-/*
- * Create a kernel thread
- *   kernel_thread(fn, arg, flags)
- */
-_GLOBAL(kernel_thread)
-        stwu    r1,-16(r1)
-        stw     r30,8(r1)
-        stw     r31,12(r1)
-        mr      r30,r3          /* function */
-        mr      r31,r4          /* argument */
-        ori     r3,r5,CLONE_VM  /* flags */
-        oris    r3,r3,CLONE_UNTRACED>>16
-        li      r4,0            /* new sp (unused) */
-        li      r0,__NR_clone
-        sc
-        bns+    1f              /* did system call indicate error? */
-        neg     r3,r3           /* if so, make return code negative */
-1:      cmpwi   0,r3,0          /* parent or child? */
-        bne     2f              /* return if parent */
-        li      r0,0            /* make top-level stack frame */
-        stwu    r0,-16(r1)
-        mtlr    r30             /* fn addr in lr */
-        mr      r3,r31          /* load arg and call fn */
-        PPC440EP_ERR42
-        blrl
-        li      r0,__NR_exit    /* exit if function returns */
-        li      r3,0
-        sc
-2:      lwz     r30,8(r1)
-        lwz     r31,12(r1)
-        addi    r1,r1,16
-        blr
-
 #ifdef CONFIG_SMP
 _GLOBAL(start_secondary_resume)
         /* Reset stack */