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-rw-r--r--arch/powerpc/Kconfig1
-rw-r--r--arch/powerpc/include/asm/unistd.h1
-rw-r--r--arch/powerpc/kernel/entry_32.S5
-rw-r--r--arch/powerpc/kernel/entry_64.S6
-rw-r--r--arch/powerpc/kernel/process.c13
5 files changed, 4 insertions, 22 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a902a5c1c76a..5af5aa707176 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -144,6 +144,7 @@ config PPC
select GENERIC_KERNEL_THREAD
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
+ select GENERIC_KERNEL_EXECVE
config EARLY_PRINTK
bool
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index 921dce6d8445..280068cfff2e 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -56,7 +56,6 @@
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
#define __ARCH_WANT_SYS_EXECVE
-#define __ARCH_WANT_KERNEL_EXECVE
/*
* "Conditional" syscalls
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 9499385676e7..d22e73e4618b 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -444,11 +444,6 @@ ret_from_kernel_thread:
PPC440EP_ERR42
blrl
li r3,0
- b do_exit # no return
-
- .globl __ret_from_kernel_execve
-__ret_from_kernel_execve:
- addi r1,r3,-STACK_FRAME_OVERHEAD
b ret_from_syscall
/* Traced system call support */
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 56e0ff0878b5..2eb766ad1c5c 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -378,12 +378,6 @@ _GLOBAL(ret_from_kernel_thread)
mr r3,r15
blrl
li r3,0
- b .do_exit # no return
-
-_GLOBAL(__ret_from_kernel_execve)
- addi r1,r3,-STACK_FRAME_OVERHEAD
- li r10,1
- std r10,SOFTE(r1)
b syscall_exit
.section ".toc","aw"
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index ba48233500f6..9e685e26c2d1 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -746,19 +746,21 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
sp -= sizeof(struct pt_regs);
childregs = (struct pt_regs *) sp;
if (!regs) {
- /* for kernel thread, set `current' and stackptr in new task */
+ struct thread_info *ti = (void *)task_stack_page(p);
memset(childregs, 0, sizeof(struct pt_regs));
childregs->gpr[1] = sp + sizeof(struct pt_regs);
#ifdef CONFIG_PPC64
childregs->gpr[14] = *(unsigned long *)usp;
childregs->gpr[2] = ((unsigned long *)usp)[1],
clear_tsk_thread_flag(p, TIF_32BIT);
+ childregs->softe = 1;
#else
childregs->gpr[14] = usp; /* function */
childregs->gpr[2] = (unsigned long) p;
#endif
childregs->gpr[15] = arg;
p->thread.regs = NULL; /* no user register state */
+ ti->flags |= _TIF_RESTOREALL;
f = ret_from_kernel_thread;
} else {
CHECK_FULL_REGS(regs);
@@ -1063,15 +1065,6 @@ int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
regs, 0, NULL, NULL);
}
-void __ret_from_kernel_execve(struct pt_regs *normal)
-__noreturn;
-
-void ret_from_kernel_execve(struct pt_regs *normal)
-{
- set_thread_flag(TIF_RESTOREALL);
- __ret_from_kernel_execve(normal);
-}
-
static inline int valid_irq_stack(unsigned long sp, struct task_struct *p,
unsigned long nbytes)
{