[peterz-queue:sched/core 13/14] kernel/sched/ext/ext.c:1087:6: error: conflicting types for 'scx_proxy_reenqueue_retry'; have 'void(struct rq *)'

[peterz-queue:sched/core 13/14] kernel/sched/ext/ext.c:1087:6: error: conflicting types for 'scx_proxy_reenqueue_retry'; have 'void(struct rq *)'

[kernel test robot]

Hi Andrea,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/core
head:   25fcc43b82e5d7681fca67b580bc2a52e81c690e
commit: 8c9f7ad6c2d56de3da9664881eb3e72a5afae2bf [13/14] sched: Add sched_ext hooks for proxy execution
config: x86_64-rhel-9.4-bpf (https://download.01.org/0day-ci/archive/20260926/202609260541.AeDtvnCV-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260926/202609260541.AeDtvnCV-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609260541.AeDtvnCV-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from kernel/sched/build_policy.c:71:
>> kernel/sched/ext/ext.c:1087:6: error: conflicting types for 'scx_proxy_reenqueue_retry'; have 'void(struct rq *)'
    1087 | void scx_proxy_reenqueue_retry(struct rq *rq)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from kernel/sched/sched.h:4295,
                    from kernel/sched/build_policy.c:41:
   kernel/sched/ext/ext.h:25:6: note: previous declaration of 'scx_proxy_reenqueue_retry' with type 'void(struct rq *, struct task_struct *)'
      25 | void scx_proxy_reenqueue_retry(struct rq *rq, struct task_struct *next);
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~


vim +1087 kernel/sched/ext/ext.c

  1086	
> 1087	void scx_proxy_reenqueue_retry(struct rq *rq)
  1088	{
  1089	}
  1090	

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https://github.com/intel/lkp-tests/wiki