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powerpc: Rename __get_SP() to current_stack_pointer()

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Michael points out that __get_SP() is a pretty horrible
function name. Let's give it a better name.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Anton Blanchard 2014-10-13 19:41:39 +11:00 committed by Michael Ellerman
parent bfe9a2cfe9
commit acf620ecf5
7 changed files with 7 additions and 7 deletions
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2
arch/powerpc/include/asm/perf_event.h
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@ -34,7 +34,7 @@
do { \
(regs)->result = 0; \
(regs)->nip = __ip; \
(regs)->gpr[1] = __get_SP(); \
(regs)->gpr[1] = current_stack_pointer(); \
asm volatile("mfmsr %0" : "=r" ((regs)->msr)); \
} while (0)
#endif

2
arch/powerpc/include/asm/reg.h
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@ -1265,7 +1265,7 @@ static inline unsigned long mfvtb (void)
#define proc_trap() asm volatile("trap")
extern unsigned long __get_SP(void);
extern unsigned long current_stack_pointer(void);
extern unsigned long scom970_read(unsigned int address);
extern void scom970_write(unsigned int address, unsigned long value);

2
arch/powerpc/kernel/irq.c
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@ -466,7 +466,7 @@ static inline void check_stack_overflow(void)
#ifdef CONFIG_DEBUG_STACKOVERFLOW
long sp;
sp = __get_SP() & (THREAD_SIZE-1);
sp = current_stack_pointer() & (THREAD_SIZE-1);
/* check for stack overflow: is there less than 2KB free? */
if (unlikely(sp < (sizeof(struct thread_info) + 2048))) {

2
arch/powerpc/kernel/misc.S
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@ -115,6 +115,6 @@ _GLOBAL(longjmp)
mr r3,r4
blr
_GLOBAL(__get_SP)
_GLOBAL(current_stack_pointer)
PPC_LL r3,0(r1)
blr

2
arch/powerpc/kernel/ppc_ksyms.c
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@ -42,4 +42,4 @@ EXPORT_SYMBOL(giveup_spe);
EXPORT_SYMBOL(epapr_hypercall_start);
#endif
EXPORT_SYMBOL(__get_SP);
EXPORT_SYMBOL(current_stack_pointer);

2
arch/powerpc/kernel/process.c
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@ -1545,7 +1545,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
tsk = current;
if (sp == 0) {
if (tsk == current)
sp = __get_SP();
sp = current_stack_pointer();
else
sp = tsk->thread.ksp;
}

2
arch/powerpc/kernel/stacktrace.c
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@ -50,7 +50,7 @@ void save_stack_trace(struct stack_trace *trace)
{
unsigned long sp;
sp = __get_SP();
sp = current_stack_pointer();
save_context_stack(trace, sp, current, 1);
}