Re: [PATCH] powerpc: inline current_stack_pointer()
From: Segher Boessenkool
Date: Tue May 24 2016 - 02:09:24 EST
On Tue, May 24, 2016 at 07:39:59AM +0200, Christophe Leroy wrote:
> >>+static inline unsigned long current_stack_pointer(void)
> >>+ register unsigned long *ptr asm("r1");
> >>+ return *ptr;
> >Register asm is only guaranteed to work as input to inline asm. NAK.
> Does it mean that the following declaration in
> arch/powerpc/include/asm/paca.h is wrong too ?
> register struct paca_struct *local_paca asm("r13");
That one is fine, because it is a global var.