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perf tests: Fix compile failure on do_sort_something

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Commit b55ae0a9 added code-reading.c which fails to compile on Fedora 16
with compiler version:
$ gcc --version
gcc (GCC) 4.6.3 20120306 (Red Hat 4.6.3-2)

Failure message is:

tests/code-reading.c: In function ‘do_sort_something’:
tests/code-reading.c:305:13: error: stack protector not protecting local variables: variable length buffer [-Werror=stack-protector]
cc1: all warnings being treated as errors
make: *** [/tmp/junk/tests/code-reading.o] Error 1
make: *** Waiting for unfinished jobs....

v2: as Adrian noticed changed sizeof to ARRAY_SIZE

Signed-off-by: David Ahern <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
David Ahern 2013-08-13 22:32:12 -06:00 • committed by Arnaldo Carvalho de Melo
commit 309b518504
1 changed files with 5 additions and 6 deletions
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11
tools/perf/tests/code-reading.c
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@ -304,15 +304,14 @@ static int comp(const void *a, const void *b)
static void do_sort_something(void)
{
size_t sz = 40960;
int buf[sz], i;
int buf[40960], i;
for (i = 0; i < (int)sz; i++)
buf[i] = sz - i - 1;
for (i = 0; i < (int)ARRAY_SIZE(buf); i++)
buf[i] = ARRAY_SIZE(buf) - i - 1;
qsort(buf, sz, sizeof(int), comp);
qsort(buf, ARRAY_SIZE(buf), sizeof(int), comp);
for (i = 0; i < (int)sz; i++) {
for (i = 0; i < (int)ARRAY_SIZE(buf); i++) {
if (buf[i] != i) {
pr_debug("qsort failed\n");
break;