From 3240dd57e533da94998029af6e17008a1806c665 Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Fri, 27 Feb 2015 10:59:31 +0530 Subject: ARC: Fix thread_saved_pc() The old implementation assumed that SP at the time of __switch_to() is right above pt_regs which is almost certainly not the case as there will be some stack build up between entry into kernel and leading up to __switch_to Signed-off-by: Vineet Gupta --- arch/arc/include/asm/processor.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'arch/arc/include/asm/processor.h') diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h index 88398caa3989..52312cb5dbe2 100644 --- a/arch/arc/include/asm/processor.h +++ b/arch/arc/include/asm/processor.h @@ -47,9 +47,6 @@ struct thread_struct { /* Forward declaration, a strange C thing */ struct task_struct; -/* Return saved PC of a blocked thread */ -unsigned long thread_saved_pc(struct task_struct *t); - #define task_pt_regs(p) \ ((struct pt_regs *)(THREAD_SIZE + (void *)task_stack_page(p)) - 1) @@ -86,6 +83,8 @@ unsigned long thread_saved_pc(struct task_struct *t); #define TSK_K_BLINK(tsk) TSK_K_REG(tsk, 4) #define TSK_K_FP(tsk) TSK_K_REG(tsk, 0) +#define thread_saved_pc(tsk) TSK_K_BLINK(tsk) + extern void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long usp); -- cgit v1.2.3