[PATCH 5/9] powerpc/xmon: Define static functions

[Breno Leitao <leitao@debian.org>]

Currently sparse is complaining about three issues on the xmon code. Two
storage classes issues and a dereferencing a 'noderef'  pointer. These are
the warnings:

	arch/powerpc/xmon/xmon.c:2783:1: warning: symbol 'dump_log_buf' was not declared. Should it be static?
	arch/powerpc/xmon/xmon.c:2989:6: warning: symbol 'format_pte' was not declared. Should it be static?
	arch/powerpc/xmon/xmon.c:2983:30: warning: dereference of noderef expression

This patch fixes all of them, turning both functions static and
dereferencing a pointer calling rcu_dereference() instead of a
straightforward dereference.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 arch/powerpc/xmon/xmon.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 4264aedc7775..5c7187923a72 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2779,7 +2779,7 @@ print_address(unsigned long addr)
 	xmon_print_symbol(addr, "\t# ", "");
 }
 
-void
+static void
 dump_log_buf(void)
 {
 	struct kmsg_dumper dumper = { .active = 1 };
@@ -2980,13 +2980,13 @@ static void show_task(struct task_struct *tsk)
 
 	printf("%px %016lx %6d %6d %c %2d %s\n", tsk,
 		tsk->thread.ksp,
-		tsk->pid, tsk->parent->pid,
+		tsk->pid, rcu_dereference(tsk->parent)->pid,
 		state, task_thread_info(tsk)->cpu,
 		tsk->comm);
 }
 
 #ifdef CONFIG_PPC_BOOK3S_64
-void format_pte(void *ptep, unsigned long pte)
+static void format_pte(void *ptep, unsigned long pte)
 {
 	printf("ptep @ 0x%016lx = 0x%016lx\n", (unsigned long)ptep, pte);
 	printf("Maps physical address = 0x%016lx\n", pte & PTE_RPN_MASK);
-- 
2.19.0