Re: linux-next: build failure after merge of the vfs-brauner tree

[Christian Brauner]

On Wed, Mar 25, 2026 at 12:32:23PM +0000, Mark Brown wrote:
> Hi all,
> 
> After merging the vfs-brauner tree, today's linux-next build
> (arm64 kselftest) failed like this:
> 
> In file included from listns_efault_test.c:23:
> ../pidfd/pidfd.h:229:19: error: static declaration of 'wait_for_pid' follows non-static declaration
>   229 | static inline int wait_for_pid(pid_t pid)
>       |                   ^~~~~~~~~~~~
> In file included from listns_efault_test.c:22:
> ../filesystems/utils.h:47:12: note: previous declaration of 'wait_for_pid' with type 'int(pid_t)' {aka 'int(int)'}
>    47 | extern int wait_for_pid(pid_t pid);
>       |            ^~~~~~~~~~~~
> 
> ie, a new instance of a similar issue (probably masked by the build
> system with the earlier issue).  This is due to a conflict with the
> preexisting wait_for_pid() in pidfd.h triggered by:
> 
>    32f54f2bbccfd (selftests/filesystems: add tests for empty mount namespaces)
> 
> I am continuing to use the tree from next-20260312.

This should be fixed now. Sorry.