There missed TRACE_ITER_PRINTK check in __trace_puts/__trace_bputs, so add it, to constant with __trace_printk/__trace_bprintk, those functions mainly called by same function: trace_printk.
Signed-off-by: zhangwei(Jovi) <jovi.zhang...@huawei.com> --- kernel/trace/trace.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 4d70cc5..41340c3 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -365,6 +365,9 @@ 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(); alloc = sizeof(*entry) + size + 2; /* possible \n added */ @@ -409,6 +412,9 @@ 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(); local_save_flags(irq_flags); -- 1.7.9.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/