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

From: Mark Brown <[email-masked]>
Date: Tue, 27 Jan 2026 11:45:44 +0000

Hi all,

After merging the vfs-brauner tree, today's linux-next build
(arm64 kselftest) failed like this:

statmount_test.c:36:26: error: conflicting types for 'statmount_alloc'; have 'struct statmount *(uint64_t,  int,  uint64_t,  unsigned int)' {aka 'struct statmount *(long unsigned int,  int,  long unsigned int,  unsigned int)'}
   36 | static struct statmount *statmount_alloc(uint64_t mnt_id, int fd, uint64_t mask, unsigned int flags)
      |                          ^~~~~~~~~~~~~~~
In file included from statmount_test.c:15:
statmount.h:91:33: note: previous definition of 'statmount_alloc' with type 'struct statmount *(uint64_t,  uint64_t,  uint64_t)' {aka 'struct statmount *(long unsigned int,  long unsigned int,  long unsigned int)'}
   91 | static inline struct statmount *statmount_alloc(uint64_t mnt_id, uint64_t mnt_ns_id, uint64_t mask)
      |                                 ^~~~~~~~~~~~~~~

Caused by commit

   c76a572bb04ed (selftests/statmount: add statmount_alloc() helper)

I have used the tree from 20260626 instead.