From ed0c79ff80c0720157491ffff5072320d88f222f Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Fri, 21 Apr 2017 16:41:10 -0700 Subject: [PATCH] UPSTREAM: 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: Matthias Kaehlcke Signed-off-by: Steven Rostedt (VMware) (cherry picked from commit 4dbbe2d8e95c351157f292ece067f985c30c7b53) Bug: 78886293 Change-Id: Ib17a68ce55ca80b04bdea2d232f8ca9f88b1b8a3 Signed-off-by: Alistair Strachan --- kernel/trace/trace.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index f8efc0fb0209..ec0ed9888e67 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2733,13 +2733,14 @@ 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 */ -- 2.20.1