diff options
Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 080dd515d587..0912948a8ea6 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -690,24 +690,6 @@ void __init exc_lvl_early_init(void) #endif /* - * Emergency stacks are used for a range of things, from asynchronous - * NMIs (system reset, machine check) to synchronous, process context. - * We set preempt_count to zero, even though that isn't necessarily correct. To - * get the right value we'd need to copy it from the previous thread_info, but - * doing that might fault causing more problems. - * TODO: what to do with accounting? - */ -static void emerg_stack_init_thread_info(struct thread_info *ti, int cpu) -{ - ti->task = NULL; - ti->cpu = cpu; - ti->preempt_count = 0; - ti->local_flags = 0; - ti->flags = 0; - klp_init_thread_info(ti); -} - -/* * Stack space used when we detect a bad kernel stack pointer, and * early in SMP boots before relocation is enabled. Exclusive emergency * stack for machine checks. @@ -737,18 +719,15 @@ void __init emergency_stack_init(void) struct thread_info *ti; ti = alloc_stack(limit, i); - emerg_stack_init_thread_info(ti, i); paca_ptrs[i]->emergency_sp = (void *)ti + THREAD_SIZE; #ifdef CONFIG_PPC_BOOK3S_64 /* emergency stack for NMI exception handling. */ ti = alloc_stack(limit, i); - emerg_stack_init_thread_info(ti, i); paca_ptrs[i]->nmi_emergency_sp = (void *)ti + THREAD_SIZE; /* emergency stack for machine check exception handling. */ ti = alloc_stack(limit, i); - emerg_stack_init_thread_info(ti, i); paca_ptrs[i]->mc_emergency_sp = (void *)ti + THREAD_SIZE; #endif } |