Re: [PATCH] selftests: pid_namespace and pidfd missing include

[Shuah Khan <skhan@linuxfoundation.org>]

On 2/12/25 17:24, Alessandro Zanni wrote:
>> Running "make kselftest" results in several errors like these:
>>
>> pidfd_fdinfo_test.c:231:36: error: ‘MS_REC’ undeclared (first use in
>> this function)
>>    231 |         r = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);
>>
>> pidfd_fdinfo_test.c:231:45: error: ‘MS_PRIVATE’ undeclared (first use
>> in this function); did you mean ‘MAP_PRIVATE’?
>>    231 |         r = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);
>>
>> pid_max.c:48:9: warning: implicit declaration of function ‘umount2’;
>> did you mean ‘SYS_umount2’? [-Wimplicit-function-declaration]
>>     48 |         umount2("/proc", MNT_DETACH);
>>
>> This patch adds the <sys/mount.h> include in pidfd_fdinfo_test.c and
>> pid_max.c files to find the variables MS_REC, MS_PRIVATE, MNT_DETACH.
>>
>> Signed-off-by: Alessandro Zanni <alessandro.zanni87@gmail.com>
>> ---
>>   tools/testing/selftests/pid_namespace/pid_max.c   | 1 +
>>   tools/testing/selftests/pidfd/pidfd_fdinfo_test.c | 1 +
>>   2 files changed, 2 insertions(+)
>>
>> diff --git a/tools/testing/selftests/pid_namespace/pid_max.c b/tools/testing/selftests/pid_namespace/pid_max.c
>> index 51c414faabb0..972bedc475f1 100644
>> --- a/tools/testing/selftests/pid_namespace/pid_max.c
>> +++ b/tools/testing/selftests/pid_namespace/pid_max.c
>> @@ -11,6 +11,7 @@
>>   #include <string.h>
>>   #include <syscall.h>
>>   #include <sys/wait.h>
>> +#include <sys/mount.h>
>>
>>   #include "../kselftest_harness.h"
>>   #include "../pidfd/pidfd.h"
>> diff --git a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
>> index f062a986e382..f718aac75068 100644
>> --- a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
>> +++ b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
>> @@ -13,6 +13,7 @@
>>   #include <syscall.h>
>>   #include <sys/wait.h>
>>   #include <sys/mman.h>
>> +#include <sys/mount.h>
>>
>>   #include "pidfd.h"
>>   #include "../kselftest.h"
>> --
>> 2.43.0
> 
> Hello,
> 
> I'm reaching out to know if you have any comments or
> feedbacks about this patch.
> 

Christian, would you like me to pick this patch up?

thanks,
-- Shuah