linux-kernel - [PATCH 1/5] tracing: Declare newly exported APIs in include/linux/trace.h

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Date:   Wed, 14 Aug 2019 10:55:23 -0700
From:   Divya Indi <divya.indi@...cle.com>
To:     Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org
Cc:     Divya Indi <divya.indi@...cle.com>, Joe Jin <joe.jin@...cle.com>,
        Srinivas Eeda <srinivas.eeda@...cle.com>,
        Aruna Ramakrishna <aruna.ramakrishna@...cle.com>
Subject: [PATCH 1/5] tracing: Declare newly exported APIs in include/linux/trace.h

Declare the newly introduced and exported APIs in the header file -
include/linux/trace.h. Moving previous declarations from
kernel/trace/trace.h to include/linux/trace.h.

Signed-off-by: Divya Indi <divya.indi@...cle.com>
---
 include/linux/trace.h | 7 +++++++
 kernel/trace/trace.h  | 4 +---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/include/linux/trace.h b/include/linux/trace.h
index b95ffb2..24fcf07 100644
--- a/include/linux/trace.h
+++ b/include/linux/trace.h
@@ -24,6 +24,13 @@ struct trace_export {
 int register_ftrace_export(struct trace_export *export);
 int unregister_ftrace_export(struct trace_export *export);
 
+struct trace_array;
+
+void trace_printk_init_buffers(void);
+int trace_array_printk(struct trace_array *tr, unsigned long ip,
+		const char *fmt, ...);
+struct trace_array *trace_array_create(const char *name);
+int trace_array_destroy(struct trace_array *tr);
 #endif	/* CONFIG_TRACING */
 
 #endif	/* _LINUX_TRACE_H */
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 005f086..66ff63e 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -11,6 +11,7 @@
 #include <linux/mmiotrace.h>
 #include <linux/tracepoint.h>
 #include <linux/ftrace.h>
+#include <linux/trace.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/trace_seq.h>
 #include <linux/trace_events.h>
@@ -852,8 +853,6 @@ extern int trace_selftest_startup_branch(struct tracer *trace,
 extern int
 trace_array_vprintk(struct trace_array *tr,
 		    unsigned long ip, const char *fmt, va_list args);
-int trace_array_printk(struct trace_array *tr,
-		       unsigned long ip, const char *fmt, ...);
 int trace_array_printk_buf(struct ring_buffer *buffer,
 			   unsigned long ip, const char *fmt, ...);
 void trace_printk_seq(struct trace_seq *s);
@@ -1869,7 +1868,6 @@ extern int trace_event_enable_disable(struct trace_event_file *file,
 extern const char *__stop___tracepoint_str[];
 
 void trace_printk_control(bool enabled);
-void trace_printk_init_buffers(void);
 void trace_printk_start_comm(void);
 int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
 int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled);
-- 
1.8.3.1