tracing: branch tracer, fix writing to trace/trace_options

Impact: fix trace_options behavior

writing to trace/trace_options use the index of the array
to find the value of the flag. With branch tracer flag
defined conditionally, this breaks writing to trace_options
with branch tracer disabled.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 0 insertions, 4 deletions

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 4a904623e05d..b04923b72ce0 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -259,9 +259,7 @@ static const char *trace_options[] = {
         "sched-tree",
         "ftrace_printk",
         "ftrace_preempt",
-#ifdef CONFIG_BRANCH_TRACER
         "branch",
-#endif
         "annotate",
         NULL
 };
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 790ea8c0e1f3..b41d7b4c2cae 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -470,9 +470,7 @@ enum trace_iterator_flags {
         TRACE_ITER_SCHED_TREE           = 0x200,
         TRACE_ITER_PRINTK               = 0x400,
         TRACE_ITER_PREEMPTONLY          = 0x800,
-#ifdef CONFIG_BRANCH_TRACER
         TRACE_ITER_BRANCH               = 0x1000,
-#endif
         TRACE_ITER_ANNOTATE             = 0x2000,
 };