2021-05-11 00:52:42

by Stephen Rothwell

[permalink] [raw]
Subject: linux-next: build failure after merge of the cgroup tree

Hi all,

After merging the cgroup tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

In file included from include/linux/string.h:6,
In file included from include/linux/string.h:6,
from arch/powerpc/include/asm/paca.h:15,
from arch/powerpc/include/asm/current.h:13,
from include/linux/sched.h:12,
from include/linux/cgroup.h:12,
from kernel/cgroup/cgroup-internal.h:5,
from kernel/cgroup/cgroup.c:31:
kernel/cgroup/cgroup.c: In function 'cgroup_exit':
kernel/cgroup/cgroup.c:6270:17: error: 'task' undeclared (first use in this function); did you mean 'tsk'?
6270 | if (unlikely(!(task->flags & PF_KTHREAD) &&
| ^~~~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
kernel/cgroup/cgroup.c:6270:17: note: each undeclared identifier is reported only once for each function it appears in
6270 | if (unlikely(!(task->flags & PF_KTHREAD) &&
| ^~~~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^

Caused by commit

c740aad01e41 ("cgroup: inline cgroup_task_freeze()")

I have used the cgroup tree from next-20210510 for today.

--
Cheers,
Stephen Rothwell


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2021-05-11 01:12:35

by Roman Gushchin

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the cgroup tree

On Tue, May 11, 2021 at 10:51:14AM +1000, Stephen Rothwell wrote:
> Hi all,
>
> After merging the cgroup tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:

Hi Stephen!

I've noticed this error and sent v2 almost immediately after the first version,
however it looks like the first version got merged by a mistake.

Tejun, can you, please, drop the first version and replace it with v2?
There is a trivial s/task/tsk fix.

Thank you and sorry for the confusion!

Roman

>
> In file included from include/linux/string.h:6,
> In file included from include/linux/string.h:6,
> from arch/powerpc/include/asm/paca.h:15,
> from arch/powerpc/include/asm/current.h:13,
> from include/linux/sched.h:12,
> from include/linux/cgroup.h:12,
> from kernel/cgroup/cgroup-internal.h:5,
> from kernel/cgroup/cgroup.c:31:
> kernel/cgroup/cgroup.c: In function 'cgroup_exit':
> kernel/cgroup/cgroup.c:6270:17: error: 'task' undeclared (first use in this function); did you mean 'tsk'?
> 6270 | if (unlikely(!(task->flags & PF_KTHREAD) &&
> | ^~~~
> include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
> 78 | # define unlikely(x) __builtin_expect(!!(x), 0)
> | ^
> kernel/cgroup/cgroup.c:6270:17: note: each undeclared identifier is reported only once for each function it appears in
> 6270 | if (unlikely(!(task->flags & PF_KTHREAD) &&
> | ^~~~
> include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
> 78 | # define unlikely(x) __builtin_expect(!!(x), 0)
> | ^
>
> Caused by commit
>
> c740aad01e41 ("cgroup: inline cgroup_task_freeze()")
>
> I have used the cgroup tree from next-20210510 for today.
>
> --
> Cheers,
> Stephen Rothwell


2021-05-11 01:33:16

by Tejun Heo

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the cgroup tree

On Mon, May 10, 2021 at 06:10:36PM -0700, Roman Gushchin wrote:
> On Tue, May 11, 2021 at 10:51:14AM +1000, Stephen Rothwell wrote:
> > Hi all,
> >
> > After merging the cgroup tree, today's linux-next build (powerpc
> > ppc64_defconfig) failed like this:
>
> Hi Stephen!
>
> I've noticed this error and sent v2 almost immediately after the first version,
> however it looks like the first version got merged by a mistake.
>
> Tejun, can you, please, drop the first version and replace it with v2?
> There is a trivial s/task/tsk fix.
>
> Thank you and sorry for the confusion!

Done, thanks.

--
tejun