[jolsa-perf:bpf/tracing_multi_5 6/23] kernel/bpf/syscall.c:3514:49: error: passing argument 1 of 'bpf_trampoline_unlink_prog' from incompatible pointer type

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/tracing_multi_5
head:   2e9ff5967a4f3cb4d96c1fd04944036d9961099d
commit: 8f7a9302fcb5575b82514340a6ceed2c5592a014 [6/23] bpf: Add struct bpf_tramp_node object
config: csky-randconfig-r072-20260226 (https://download.01.org/0day-ci/archive/20260226/202602260113.doKuRGW0-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 15.2.0
smatch version: v0.5.0-8994-gd50c5a4c
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260226/202602260113.doKuRGW0-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/202602260113.doKuRGW0-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from kernel/bpf/syscall.c:5:
   include/linux/bpf.h:1543:51: warning: 'struct bpf_tramp_link' declared inside parameter list will not be visible outside of this definition or declaration
    1543 | static inline int bpf_trampoline_link_prog(struct bpf_tramp_link *link,
         |                                                   ^~~~~~~~~~~~~~
   include/linux/bpf.h:1549:53: warning: 'struct bpf_tramp_link' declared inside parameter list will not be visible outside of this definition or declaration
    1549 | static inline int bpf_trampoline_unlink_prog(struct bpf_tramp_link *link,
         |                                                     ^~~~~~~~~~~~~~
   In file included from include/asm-generic/bug.h:7,
                    from arch/csky/include/asm/bug.h:18,
                    from include/linux/bug.h:5,
                    from include/linux/alloc_tag.h:8,
                    from include/linux/workqueue.h:9,
                    from include/linux/bpf.h:11:
   kernel/bpf/syscall.c: In function 'bpf_tracing_link_release':
>> kernel/bpf/syscall.c:3514:49: error: passing argument 1 of 'bpf_trampoline_unlink_prog' from incompatible pointer type [-Wincompatible-pointer-types]
    3514 |         WARN_ON_ONCE(bpf_trampoline_unlink_prog(&tr_link->link.node,
         |                                                 ^~~~~~~~~~~~~~~~~~~
         |                                                 |
         |                                                 struct bpf_tramp_node *
   include/linux/once_lite.h:28:41: note: in definition of macro 'DO_ONCE_LITE_IF'
      28 |                 bool __ret_do_once = !!(condition);                     \
         |                                         ^~~~~~~~~
   kernel/bpf/syscall.c:3514:9: note: in expansion of macro 'WARN_ON_ONCE'
    3514 |         WARN_ON_ONCE(bpf_trampoline_unlink_prog(&tr_link->link.node,
         |         ^~~~~~~~~~~~
   include/linux/bpf.h:1549:69: note: expected 'struct bpf_tramp_link *' but argument is of type 'struct bpf_tramp_node *'
    1549 | static inline int bpf_trampoline_unlink_prog(struct bpf_tramp_link *link,
         |                                              ~~~~~~~~~~~~~~~~~~~~~~~^~~~
   kernel/bpf/syscall.c: In function 'bpf_tracing_prog_attach':
>> kernel/bpf/syscall.c:3746:40: error: passing argument 1 of 'bpf_trampoline_link_prog' from incompatible pointer type [-Wincompatible-pointer-types]
    3746 |         err = bpf_trampoline_link_prog(&link->link.node, tr, tgt_prog);
         |                                        ^~~~~~~~~~~~~~~~
         |                                        |
         |                                        struct bpf_tramp_node *
   include/linux/bpf.h:1543:67: note: expected 'struct bpf_tramp_link *' but argument is of type 'struct bpf_tramp_node *'
    1543 | static inline int bpf_trampoline_link_prog(struct bpf_tramp_link *link,
         |                                            ~~~~~~~~~~~~~~~~~~~~~~~^~~~


vim +/bpf_trampoline_unlink_prog +3514 kernel/bpf/syscall.c

  3508	
  3509	static void bpf_tracing_link_release(struct bpf_link *link)
  3510	{
  3511		struct bpf_tracing_link *tr_link =
  3512			container_of(link, struct bpf_tracing_link, link.link);
  3513	
> 3514		WARN_ON_ONCE(bpf_trampoline_unlink_prog(&tr_link->link.node,
  3515							tr_link->trampoline,
  3516							tr_link->tgt_prog));
  3517	
  3518		bpf_trampoline_put(tr_link->trampoline);
  3519	
  3520		/* tgt_prog is NULL if target is a kernel function */
  3521		if (tr_link->tgt_prog)
  3522			bpf_prog_put(tr_link->tgt_prog);
  3523	}
  3524	

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