From: "zhangwei(Jovi)" <jovi.zhang...@huawei.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit f0160a5a2912267c02cfe692eac955c360de5fdf upstream.

The TRACE_ITER_PRINTK check in __trace_puts/__trace_bputs is missing,
so add it, to be consistent with __trace_printk/__trace_bprintk.
Those functions are all called by the same function: trace_printk().

Link: http://lkml.kernel.org/p/51e7a7d6.8090...@huawei.com

Signed-off-by: zhangwei(Jovi) <jovi.zhang...@huawei.com>
Signed-off-by: Steven Rostedt <rost...@goodmis.org>
Signed-off-by: Jiri Slaby <jsl...@suse.cz>
---
 kernel/trace/trace.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 952cde4d4e3c..b7566fe4d607 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -436,6 +436,9 @@ int __trace_puts(unsigned long ip, const char *str, int 
size)
        int alloc;
        int pc;
 
+       if (!(trace_flags & TRACE_ITER_PRINTK))
+               return 0;
+
        pc = preempt_count();
 
        if (unlikely(tracing_selftest_running || tracing_disabled))
@@ -483,6 +486,9 @@ int __trace_bputs(unsigned long ip, const char *str)
        int size = sizeof(struct bputs_entry);
        int pc;
 
+       if (!(trace_flags & TRACE_ITER_PRINTK))
+               return 0;
+
        pc = preempt_count();
 
        if (unlikely(tracing_selftest_running || tracing_disabled))
-- 
2.0.1

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