Commit f3ef7202 authored by Yordan Karadzhov (VMware)'s avatar Yordan Karadzhov (VMware) Committed by Steven Rostedt (VMware)
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tracing: Remove unused argument from "ring_buffer_time_stamp() 

The "cpu" parameter is not being used by the function.

Link: https://lkml.kernel.org/r/20210329130331.199402-1-y.karadz@gmail.com



Signed-off-by: default avatarYordan Karadzhov (VMware) <y.karadz@gmail.com>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 1decdb33

include/linux/ring_buffer.h

+1 −1
Original line number Diff line number Diff line
@@ -181,7 +181,7 @@ unsigned long ring_buffer_commit_overrun_cpu(struct trace_buffer *buffer, int cp 
unsigned long ring_buffer_dropped_events_cpu(struct trace_buffer *buffer, int cpu);

unsigned long ring_buffer_read_events_cpu(struct trace_buffer *buffer, int cpu);



u64 ring_buffer_time_stamp(struct trace_buffer *buffer, int cpu);

u64 ring_buffer_time_stamp(struct trace_buffer *buffer);

void ring_buffer_normalize_time_stamp(struct trace_buffer *buffer,

				      int cpu, u64 *ts);

void ring_buffer_set_clock(struct trace_buffer *buffer,

kernel/trace/ring_buffer.c

+1 −1
Original line number Diff line number Diff line
@@ -1080,7 +1080,7 @@ static inline u64 rb_time_stamp(struct trace_buffer *buffer) 
	return ts << DEBUG_SHIFT;

}



u64 ring_buffer_time_stamp(struct trace_buffer *buffer, int cpu)

u64 ring_buffer_time_stamp(struct trace_buffer *buffer)

{

	u64 time;

kernel/trace/trace.c

+4 −4
Original line number Diff line number Diff line
@@ -771,7 +771,7 @@ static u64 buffer_ftrace_now(struct array_buffer *buf, int cpu) 
	if (!buf->buffer)

		return trace_clock_local();



	ts = ring_buffer_time_stamp(buf->buffer, cpu);

	ts = ring_buffer_time_stamp(buf->buffer);

	ring_buffer_normalize_time_stamp(buf->buffer, cpu, &ts);



	return ts;
@@ -7174,7 +7174,7 @@ static int tracing_time_stamp_mode_open(struct inode *inode, struct file *file) 
u64 tracing_event_time_stamp(struct trace_buffer *buffer, struct ring_buffer_event *rbe)

{

	if (rbe == this_cpu_read(trace_buffered_event))

		return ring_buffer_time_stamp(buffer, smp_processor_id());

		return ring_buffer_time_stamp(buffer);



	return ring_buffer_event_time_stamp(buffer, rbe);

}
@@ -8088,7 +8088,7 @@ tracing_stats_read(struct file *filp, char __user *ubuf, 
		trace_seq_printf(s, "oldest event ts: %5llu.%06lu\n",

								t, usec_rem);



		t = ns2usecs(ring_buffer_time_stamp(trace_buf->buffer, cpu));

		t = ns2usecs(ring_buffer_time_stamp(trace_buf->buffer));

		usec_rem = do_div(t, USEC_PER_SEC);

		trace_seq_printf(s, "now ts: %5llu.%06lu\n", t, usec_rem);

	} else {
@@ -8097,7 +8097,7 @@ tracing_stats_read(struct file *filp, char __user *ubuf, 
				ring_buffer_oldest_event_ts(trace_buf->buffer, cpu));



		trace_seq_printf(s, "now ts: %llu\n",

				ring_buffer_time_stamp(trace_buf->buffer, cpu));

				ring_buffer_time_stamp(trace_buf->buffer));

	}



	cnt = ring_buffer_dropped_events_cpu(trace_buf->buffer, cpu);