[PATCH 6/7] Fix dump_stack()

[Franck Bui-Huu <vagabon.xyz@xxxxxxxxx>]

When CONFIG_KALLSYMS is not set stack local is not initialized. Therefore
show_trace() won't display anything useful. This patch uses
prepare_frametrace() to setup the stack pointer before calling
show_trace().

Signed-off-by: Franck Bui-Huu <vagabon.xyz@xxxxxxxxx>
---
 arch/mips/kernel/traps.c |   13 +++----------
 1 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 15fa445..07191a6 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -203,17 +203,10 @@ void show_stack(struct task_struct *task
  */
 void dump_stack(void)
 {
-	unsigned long stack;
+	struct pt_regs regs;
 
-#ifdef CONFIG_KALLSYMS
-	if (!raw_show_trace) {
-		struct pt_regs regs;
-		prepare_frametrace(&regs);
-		show_backtrace(current, &regs);
-		return;
-	}
-#endif
-	show_trace(&stack);
+	prepare_frametrace(&regs);
+	show_backtrace(current, &regs);
 }
 
 EXPORT_SYMBOL(dump_stack);
-- 
1.4.2.rc2