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Commit 4dbbe2d8 authored by Matthias Kaehlcke's avatar Matthias Kaehlcke Committed by Steven Rostedt (VMware)
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tracing: Use cpumask_available() to check if cpumask variable may be used 

This fixes the following clang warning:

kernel/trace/trace.c:3231:12: warning: address of array 'iter->started'
  will always evaluate to 'true' [-Wpointer-bool-conversion]
        if (iter->started)

Link: http://lkml.kernel.org/r/20170421234110.117075-1-mka@chromium.org



Signed-off-by: default avatarMatthias Kaehlcke <mka@chromium.org>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 77c0edde

kernel/trace/trace.c

+3 −2
Original line number Diff line number Diff line
@@ -3311,13 +3311,14 @@ static void test_cpu_buff_start(struct trace_iterator *iter) 
	if (!(iter->iter_flags & TRACE_FILE_ANNOTATE))

		return;



	if (iter->started && cpumask_test_cpu(iter->cpu, iter->started))

	if (cpumask_available(iter->started) &&

	    cpumask_test_cpu(iter->cpu, iter->started))

		return;



	if (per_cpu_ptr(iter->trace_buffer->data, iter->cpu)->skipped_entries)

		return;



	if (iter->started)

	if (cpumask_available(iter->started))

		cpumask_set_cpu(iter->cpu, iter->started);



	/* Don't print started cpu buffer for the first entry of the trace */