[PATCH 3/3] powerpc/xmon: Disable tracing on xmon by default

[Breno Leitao]

Currently tracing is enabled from inside xmon, which may cause some
noise into the tracing buffer, and makes it harder to find what, in
the tracing buffer, are kernel non-xmon functions and what is xmon
'noise' (as printk()s and terminal functions tracing).

This patch simple disables it by default, showing a better trace output
of the failing functions just before it gets into xmon.

Signed-off-by: Breno Leitao <leitao at debian.org>
---
 arch/powerpc/xmon/xmon.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 19276d2f2f25..b614cc3a3a65 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -89,7 +89,7 @@ static unsigned long nidump = 16;
 static unsigned long ncsum = 4096;
 static int termch;
 static char tmpstr[128];
-static char tracing_enabled = 1;
+static char tracing_enabled = 0;
 
 static long bus_error_jmp[JMP_BUF_LEN];
 static int catch_memory_errors;
@@ -463,6 +463,7 @@ static int xmon_core(struct pt_regs *regs, int fromipi)
 
 	local_irq_save(flags);
 	hard_irq_disable();
+	tracing_off();
 
 	bp = in_breakpoint_table(regs->nip, &offset);
 	if (bp != NULL) {
-- 
2.13.2