On 05/31/2017 08:44 AM, Gustavo Padovan wrote:
> Hi Michael,
>
> On 05/31/2017 07:40 PM, Michael Ellerman wrote:
>> The "Sync framework" test doesn't work if the kernel has no support,
>> obviously. Rather than reporting a failure, check for the kernel support
>> by looking for /sys/kernel/debug/sync/sw_sync, and if not found skip the
>> test.
>>
>> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
>> ---
>> tools/testing/selftests/sync/sync_test.c | 13 +++++++++++++
>> 1 file changed, 13 insertions(+)
>>
>> diff --git a/tools/testing/selftests/sync/sync_test.c b/tools/testing/selftests/sync/sync_test.c
>> index 9ea08d9f0b13..62fa666e501a 100644
>> --- a/tools/testing/selftests/sync/sync_test.c
>> +++ b/tools/testing/selftests/sync/sync_test.c
>> @@ -29,6 +29,7 @@
>> #include <unistd.h>
>> #include <stdlib.h>
>> #include <sys/types.h>
>> +#include <sys/stat.h>
>> #include <sys/wait.h>
>>
>> #include "synctest.h"
>> @@ -52,10 +53,22 @@ static int run_test(int (*test)(void), char *name)
>> exit(test());
>> }
>>
>> +static int sync_api_supported(void)
>> +{
>> + struct stat sbuf;
>> +
>> + return 0 == stat("/sys/kernel/debug/sync/sw_sync", &sbuf);
>> +}
>> +
>> int main(void)
>> {
>> int err = 0;
>>
>> + if (!sync_api_supported()) {
>> + printf("SKIP: Sync framework not supported by kernel\n");
>> + return 0;
>> + }
>> +
>> printf("[RUN]\tTesting sync framework\n");
>>
>> err += RUN_TEST(test_alloc_timeline);
>>
>
> Reviewed-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxx>
>
Thanks both. I will pull this into kselftest for 4.13-rc1
-- Shuah
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