perf tools: Add include <linux/kernel.h> where ARRAY_SIZE() is used

To pave the way for further cleanups where linux/kernel.h may stop being
included in some header.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-qqxan6tfsl6qx3l0v3nwgjvk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/bpf.c

@@ -5,6 +5,7 @@
 #include <util/evlist.h>
 #include <linux/bpf.h>
 #include <linux/filter.h>
+#include <linux/kernel.h>
 #include <api/fs/fs.h>
 #include <bpf/bpf.h>
 #include "tests.h"

tools/perf/tests/builtin-test.c

@@ -13,6 +13,7 @@
 #include "color.h"
 #include <subcmd/parse-options.h>
 #include "symbol.h"
+#include <linux/kernel.h>
 
 static bool dont_fork;
 

tools/perf/tests/clang.c

@@ -2,6 +2,7 @@
 #include "debug.h"
 #include "util.h"
 #include "c++/clang-c.h"
+#include <linux/kernel.h>
 
 static struct {
 	int (*func)(void);

tools/perf/tests/code-reading.c

@@ -1,3 +1,4 @@
+#include <linux/kernel.h>
 #include <linux/types.h>
 #include <stdlib.h>
 #include <unistd.h>

tools/perf/tests/dso-data.c

@@ -1,4 +1,5 @@
 #include <stdlib.h>
+#include <linux/kernel.h>
 #include <linux/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>

tools/perf/tests/evsel-roundtrip-name.c

@@ -3,6 +3,7 @@
 #include "parse-events.h"
 #include "tests.h"
 #include "debug.h"
+#include <linux/kernel.h>
 
 static int perf_evsel__roundtrip_cache_name_test(void)
 {

tools/perf/tests/hists_common.c

@@ -7,6 +7,7 @@
 #include "util/machine.h"
 #include "util/thread.h"
 #include "tests/hists_common.h"
+#include <linux/kernel.h>
 
 static struct {
 	u32 pid;

tools/perf/tests/hists_cumulate.c

@@ -9,6 +9,7 @@
 #include "util/parse-events.h"
 #include "tests/tests.h"
 #include "tests/hists_common.h"
+#include <linux/kernel.h>
 
 struct sample {
 	u32 pid;

tools/perf/tests/hists_filter.c

@@ -9,6 +9,7 @@
 #include "util/parse-events.h"
 #include "tests/tests.h"
 #include "tests/hists_common.h"
+#include <linux/kernel.h>
 
 struct sample {
 	u32 pid;

tools/perf/tests/hists_link.c

@@ -9,6 +9,7 @@
 #include "thread.h"
 #include "parse-events.h"
 #include "hists_common.h"
+#include <linux/kernel.h>
 
 struct sample {
 	u32 pid;

tools/perf/tests/hists_output.c

@@ -9,6 +9,7 @@
 #include "util/parse-events.h"
 #include "tests/tests.h"
 #include "tests/hists_common.h"
+#include <linux/kernel.h>
 
 struct sample {
 	u32 cpu;

tools/perf/tests/is_printable_array.c

@@ -1,4 +1,5 @@
 #include <linux/compiler.h>
+#include <linux/kernel.h>
 #include "tests.h"
 #include "debug.h"
 #include "util.h"

tools/perf/tests/mmap-basic.c

@@ -7,6 +7,7 @@
 #include "cpumap.h"
 #include "tests.h"
 #include <linux/err.h>
+#include <linux/kernel.h>
 
 /*
  * This test will generate random numbers of calls to some getpid syscalls,

tools/perf/tests/parse-events.c

@@ -1,4 +1,3 @@
-
 #include "parse-events.h"
 #include "evsel.h"
 #include "evlist.h"
@@ -6,6 +5,7 @@
 #include "tests.h"
 #include "debug.h"
 #include "util.h"
+#include <linux/kernel.h>
 #include <linux/hw_breakpoint.h>
 #include <api/fs/fs.h>
 

tools/perf/tests/parse-no-sample-id-all.c

@@ -1,3 +1,4 @@
+#include <linux/kernel.h>
 #include <linux/types.h>
 #include <stddef.h>
 

tools/perf/tests/pmu.c

@@ -2,6 +2,7 @@
 #include "pmu.h"
 #include "util.h"
 #include "tests.h"
+#include <linux/kernel.h>
 
 /* Simulated format definitions. */
 static struct test_format {

tools/perf/tests/sample-parsing.c

@@ -1,4 +1,5 @@
 #include <stdbool.h>
+#include <linux/kernel.h>
 #include <linux/types.h>
 
 #include "util.h"