2022-09-01 04:12:37

by Li Zhijian

Subject: [PATCH v2] selftests: pidfd: Fix compling warnings

Fix warnings and enable Wall.

pidfd_wait.c: In function ‘wait_nonblock’:
pidfd_wait.c:150:13: warning: unused variable ‘status’ [-Wunused-variable]
150 | int pidfd, status = 0;
| ^~~~~~
...
pidfd_test.c: In function ‘child_poll_exec_test’:
pidfd_test.c:438:1: warning: no return statement in function returning non-void [-Wreturn-type]
438 | }
| ^

Signed-off-by: Li Zhijian <[email protected]>
v2: fix mistake assignment to pidfd
---
tools/testing/selftests/pidfd/Makefile | 2 +-
tools/testing/selftests/pidfd/pidfd_test.c | 2 ++
tools/testing/selftests/pidfd/pidfd_wait.c | 2 +-
3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/pidfd/Makefile b/tools/testing/selftests/pidfd/Makefile
index f4a2f28f926b..778b6cdc8aed 100644
--- a/tools/testing/selftests/pidfd/Makefile
+++ b/tools/testing/selftests/pidfd/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
-CFLAGS += -g -I../../../../usr/include/ -pthread
+CFLAGS += -g -I../../../../usr/include/ -pthread -Wall

TEST_GEN_PROGS := pidfd_test pidfd_fdinfo_test pidfd_open_test \
pidfd_poll_test pidfd_wait pidfd_getfd_test pidfd_setns_test
diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c
index 9a2d64901d59..d36654265b7a 100644
--- a/tools/testing/selftests/pidfd/pidfd_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_test.c
@@ -435,6 +435,8 @@ static int child_poll_exec_test(void *args)
*/
while (1)
sleep(1);
+
+ return 0;
}

static void test_pidfd_poll_exec(int use_waitpid)
diff --git a/tools/testing/selftests/pidfd/pidfd_wait.c b/tools/testing/selftests/pidfd/pidfd_wait.c
index c3e2a3041f55..0dcb8365ddc3 100644
--- a/tools/testing/selftests/pidfd/pidfd_wait.c
+++ b/tools/testing/selftests/pidfd/pidfd_wait.c
@@ -148,7 +148,7 @@ static int sys_waitid(int which, pid_t pid, siginfo_t *info, int options,

TEST(wait_nonblock)
{
- int pidfd, status = 0;
+ int pidfd;
unsigned int flags = 0;
pid_t parent_tid = -1;
struct clone_args args = {
--
1.8.3.1

2022-09-29 01:13:10

by Li Zhijian

Subject: Re: [PATCH v2] selftests: pidfd: Fix compling warnings

ping

On 01/09/2022 11:17, Li Zhijian wrote:
> Fix warnings and enable Wall.
>
> pidfd_wait.c: In function ‘wait_nonblock’:
> pidfd_wait.c:150:13: warning: unused variable ‘status’ [-Wunused-variable]
> 150 | int pidfd, status = 0;
> | ^~~~~~
> ...
> pidfd_test.c: In function ‘child_poll_exec_test’:
> pidfd_test.c:438:1: warning: no return statement in function returning non-void [-Wreturn-type]
> 438 | }
> | ^
>
> Signed-off-by: Li Zhijian <[email protected]>
> v2: fix mistake assignment to pidfd
> ---
> tools/testing/selftests/pidfd/Makefile | 2 +-
> tools/testing/selftests/pidfd/pidfd_test.c | 2 ++
> tools/testing/selftests/pidfd/pidfd_wait.c | 2 +-
> 3 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/tools/testing/selftests/pidfd/Makefile b/tools/testing/selftests/pidfd/Makefile
> index f4a2f28f926b..778b6cdc8aed 100644
> --- a/tools/testing/selftests/pidfd/Makefile
> +++ b/tools/testing/selftests/pidfd/Makefile
> @@ -1,5 +1,5 @@
> # SPDX-License-Identifier: GPL-2.0-only
> -CFLAGS += -g -I../../../../usr/include/ -pthread
> +CFLAGS += -g -I../../../../usr/include/ -pthread -Wall
>
> TEST_GEN_PROGS := pidfd_test pidfd_fdinfo_test pidfd_open_test \
> pidfd_poll_test pidfd_wait pidfd_getfd_test pidfd_setns_test
> diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c
> index 9a2d64901d59..d36654265b7a 100644
> --- a/tools/testing/selftests/pidfd/pidfd_test.c
> +++ b/tools/testing/selftests/pidfd/pidfd_test.c
> @@ -435,6 +435,8 @@ static int child_poll_exec_test(void *args)
> */
> while (1)
> sleep(1);
> +
> + return 0;
> }
>
> static void test_pidfd_poll_exec(int use_waitpid)
> diff --git a/tools/testing/selftests/pidfd/pidfd_wait.c b/tools/testing/selftests/pidfd/pidfd_wait.c
> index c3e2a3041f55..0dcb8365ddc3 100644
> --- a/tools/testing/selftests/pidfd/pidfd_wait.c
> +++ b/tools/testing/selftests/pidfd/pidfd_wait.c
> @@ -148,7 +148,7 @@ static int sys_waitid(int which, pid_t pid, siginfo_t *info, int options,
>
> TEST(wait_nonblock)
> {
> - int pidfd, status = 0;
> + int pidfd;
> unsigned int flags = 0;
> pid_t parent_tid = -1;
> struct clone_args args = {

2022-10-30 08:28:35

by Li Zhijian

Subject: Re: [PATCH v2] selftests: pidfd: Fix compling warnings

ping again



On 29/09/2022 08:55, Li Zhijian wrote:
> ping
>
> On 01/09/2022 11:17, Li Zhijian wrote:
>> Fix warnings and enable Wall.
>>
>> pidfd_wait.c: In function ‘wait_nonblock’:
>> pidfd_wait.c:150:13: warning: unused variable ‘status’ [-Wunused-variable]
>>    150 |  int pidfd, status = 0;
>>        |             ^~~~~~
>> ...
>> pidfd_test.c: In function ‘child_poll_exec_test’:
>> pidfd_test.c:438:1: warning: no return statement in function returning non-void [-Wreturn-type]
>>    438 | }
>>        | ^
>>
>> Signed-off-by: Li Zhijian <[email protected]>
>> v2: fix mistake assignment to pidfd
>> ---
>>   tools/testing/selftests/pidfd/Makefile     | 2 +-
>>   tools/testing/selftests/pidfd/pidfd_test.c | 2 ++
>>   tools/testing/selftests/pidfd/pidfd_wait.c | 2 +-
>>   3 files changed, 4 insertions(+), 2 deletions(-)
>>
>> diff --git a/tools/testing/selftests/pidfd/Makefile b/tools/testing/selftests/pidfd/Makefile
>> index f4a2f28f926b..778b6cdc8aed 100644
>> --- a/tools/testing/selftests/pidfd/Makefile
>> +++ b/tools/testing/selftests/pidfd/Makefile
>> @@ -1,5 +1,5 @@
>>   # SPDX-License-Identifier: GPL-2.0-only
>> -CFLAGS += -g -I../../../../usr/include/ -pthread
>> +CFLAGS += -g -I../../../../usr/include/ -pthread -Wall
>>     TEST_GEN_PROGS := pidfd_test pidfd_fdinfo_test pidfd_open_test \
>>       pidfd_poll_test pidfd_wait pidfd_getfd_test pidfd_setns_test
>> diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c
>> index 9a2d64901d59..d36654265b7a 100644
>> --- a/tools/testing/selftests/pidfd/pidfd_test.c
>> +++ b/tools/testing/selftests/pidfd/pidfd_test.c
>> @@ -435,6 +435,8 @@ static int child_poll_exec_test(void *args)
>>        */
>>       while (1)
>>           sleep(1);
>> +
>> +    return 0;
>>   }
>>     static void test_pidfd_poll_exec(int use_waitpid)
>> diff --git a/tools/testing/selftests/pidfd/pidfd_wait.c b/tools/testing/selftests/pidfd/pidfd_wait.c
>> index c3e2a3041f55..0dcb8365ddc3 100644
>> --- a/tools/testing/selftests/pidfd/pidfd_wait.c
>> +++ b/tools/testing/selftests/pidfd/pidfd_wait.c
>> @@ -148,7 +148,7 @@ static int sys_waitid(int which, pid_t pid, siginfo_t *info, int options,
>>     TEST(wait_nonblock)
>>   {
>> -    int pidfd, status = 0;
>> +    int pidfd;
>>       unsigned int flags = 0;
>>       pid_t parent_tid = -1;
>>       struct clone_args args = {
>

2022-10-30 08:55:07

by Shuah Khan

Subject: Re: [PATCH v2] selftests: pidfd: Fix compling warnings

On 8/31/22 21:17, Li Zhijian wrote:
> Fix warnings and enable Wall.
>
> pidfd_wait.c: In function ‘wait_nonblock’:
> pidfd_wait.c:150:13: warning: unused variable ‘status’ [-Wunused-variable]
> 150 | int pidfd, status = 0;
> | ^~~~~~
> ...
> pidfd_test.c: In function ‘child_poll_exec_test’:
> pidfd_test.c:438:1: warning: no return statement in function returning non-void [-Wreturn-type]
> 438 | }
> | ^
>
> Signed-off-by: Li Zhijian <[email protected]>
> v2: fix mistake assignment to pidfd
> ---

Sorry for the delay. Now applied to linux-kselftest fixes for rc4

thanks,
-- Shuah