[PATCH v2 1/7] ftrace: Expose flags used for ftrace_replace_code()

From: Naveen N. Rao
Date: Thu Jun 27 2019 - 07:24:17 EST


Since ftrace_replace_code() is a __weak function and can be overridden,
we need to expose the flags that can be set. So, move the flags enum to
the header file.

Reviewed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Signed-off-by: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
---
include/linux/ftrace.h | 5 +++++
kernel/trace/ftrace.c | 5 -----
2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 25e2995d4a4c..e97789c95c4e 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -162,6 +162,11 @@ enum {
FTRACE_OPS_FL_TRACE_ARRAY = 1 << 15,
};

+enum {
+ FTRACE_MODIFY_ENABLE_FL = (1 << 0),
+ FTRACE_MODIFY_MAY_SLEEP_FL = (1 << 1),
+};
+
#ifdef CONFIG_DYNAMIC_FTRACE
/* The hash used to know what functions callbacks trace */
struct ftrace_ops_hash {
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 38277af44f5c..5710a6b3edc1 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -75,11 +75,6 @@
#define INIT_OPS_HASH(opsname)
#endif

-enum {
- FTRACE_MODIFY_ENABLE_FL = (1 << 0),
- FTRACE_MODIFY_MAY_SLEEP_FL = (1 << 1),
-};
-
struct ftrace_ops ftrace_list_end __read_mostly = {
.func = ftrace_stub,
.flags = FTRACE_OPS_FL_RECURSION_SAFE | FTRACE_OPS_FL_STUB,
--
2.22.0