diff mbox series

[V2] selftests/cgroup: Fix build on older distros

Message ID 160464840151.97255.15344214064240834294.sendpatchset@MacBook-Pro.local
State Accepted
Commit c2e46f6b3e3551558d44c4dc518b9667cb0d5f8b
Headers show
Series [V2] selftests/cgroup: Fix build on older distros | expand

Commit Message

Sachin Sant Nov. 6, 2020, 7:40 a.m. UTC
On older distros struct clone_args does not have a cgroup member,
leading to build errors:

 cgroup_util.c: In function 'clone_into_cgroup':
 cgroup_util.c:343:4: error: 'struct clone_args' has no member named 'cgroup'
 cgroup_util.c:346:33: error: invalid application of 'sizeof' to incomplete
  type 'struct clone_args'

But the selftests already have a locally defined version of the
structure which is up to date, called __clone_args.

So use __clone_args which fixes the error.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sachin Sant <sachinp@linux.vnet.ibm.com>>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
---

V2: Replace all instances of clone_args by __clone_args
---

Comments

Shuah Khan Nov. 10, 2020, 10:15 p.m. UTC | #1
On 11/6/20 12:40 AM, Sachin Sant wrote:
> On older distros struct clone_args does not have a cgroup member,

> leading to build errors:

> 

>   cgroup_util.c: In function 'clone_into_cgroup':

>   cgroup_util.c:343:4: error: 'struct clone_args' has no member named 'cgroup'

>   cgroup_util.c:346:33: error: invalid application of 'sizeof' to incomplete

>    type 'struct clone_args'

> 

> But the selftests already have a locally defined version of the

> structure which is up to date, called __clone_args.

> 

> So use __clone_args which fixes the error.

> 

> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

> Signed-off-by: Sachin Sant <sachinp@linux.vnet.ibm.com>>

> Acked-by: Christian Brauner <christian.brauner@ubuntu.com>

> ---

> 

> V2: Replace all instances of clone_args by __clone_args

> ---

> 

> diff --git a/a/tools/testing/selftests/cgroup/cgroup_util.c b/b/tools/testing/selftests/cgroup/cgroup_util.c

> index 05853b0..0270146 100644

> --- a/a/tools/testing/selftests/cgroup/cgroup_util.c

> +++ b/b/tools/testing/selftests/cgroup/cgroup_util.c

> @@ -337,13 +337,13 @@ pid_t clone_into_cgroup(int cgroup_fd)

>   #ifdef CLONE_ARGS_SIZE_VER2

>   	pid_t pid;

>   

> -	struct clone_args args = {

> +	struct __clone_args args = {

>   		.flags = CLONE_INTO_CGROUP,

>   		.exit_signal = SIGCHLD,

>   		.cgroup = cgroup_fd,

>   	};

>   

> -	pid = sys_clone3(&args, sizeof(struct clone_args));

> +	pid = sys_clone3(&args, sizeof(struct __clone_args));

>   	/*

>   	 * Verify that this is a genuine test failure:

>   	 * ENOSYS -> clone3() not available

> 


Not sure how you generated the patch. I had to use git am -p2

Applied to linux-kselftest next - please make sure to generate from
top level.

thanks,
-- Shuah
Sachin Sant Nov. 11, 2020, 6:11 a.m. UTC | #2
> On 11-Nov-2020, at 3:45 AM, Shuah Khan <skhan@linuxfoundation.org> wrote:

> 

> On 11/6/20 12:40 AM, Sachin Sant wrote:

>> ---

>> V2: Replace all instances of clone_args by __clone_args

>> ---

>> diff --git a/a/tools/testing/selftests/cgroup/cgroup_util.c b/b/tools/testing/selftests/cgroup/cgroup_util.c

>> index 05853b0..0270146 100644

>> --- a/a/tools/testing/selftests/cgroup/cgroup_util.c

>> +++ b/b/tools/testing/selftests/cgroup/cgroup_util.c

> 

> Not sure how you generated the patch. I had to use git am -p2

> 

Sorry about that. Not sure what happened. Thanks.

-Sachin
diff mbox series

Patch

diff --git a/a/tools/testing/selftests/cgroup/cgroup_util.c b/b/tools/testing/selftests/cgroup/cgroup_util.c
index 05853b0..0270146 100644
--- a/a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -337,13 +337,13 @@  pid_t clone_into_cgroup(int cgroup_fd)
 #ifdef CLONE_ARGS_SIZE_VER2
 	pid_t pid;
 
-	struct clone_args args = {
+	struct __clone_args args = {
 		.flags = CLONE_INTO_CGROUP,
 		.exit_signal = SIGCHLD,
 		.cgroup = cgroup_fd,
 	};
 
-	pid = sys_clone3(&args, sizeof(struct clone_args));
+	pid = sys_clone3(&args, sizeof(struct __clone_args));
 	/*
 	 * Verify that this is a genuine test failure:
 	 * ENOSYS -> clone3() not available