net/bpf/test_run.c:563:14: warning: no previous declaration for 'bpf_fentry_shadow_test'
From: kernel test robot
Date: Mon Sep 11 2023 - 16:50:16 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
commit: aa3d65de4b9004d799f97700751a86d3ebd7d5f9 bpf/selftests: Test fentry attachment to shadowed functions
date: 6 months ago
config: x86_64-randconfig-002-20230910 (https://download.01.org/0day-ci/archive/20230912/202309120423.DpcjZ6lB-lkp@xxxxxxxxx/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230912/202309120423.DpcjZ6lB-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309120423.DpcjZ6lB-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
net/bpf/test_run.c:489:17: warning: no previous declaration for 'bpf_fentry_test1' [-Wmissing-declarations]
__bpf_kfunc int bpf_fentry_test1(int a)
^~~~~~~~~~~~~~~~
net/bpf/test_run.c:495:14: warning: no previous declaration for 'bpf_fentry_test2' [-Wmissing-declarations]
int noinline bpf_fentry_test2(int a, u64 b)
^~~~~~~~~~~~~~~~
net/bpf/test_run.c:500:14: warning: no previous declaration for 'bpf_fentry_test3' [-Wmissing-declarations]
int noinline bpf_fentry_test3(char a, int b, u64 c)
^~~~~~~~~~~~~~~~
net/bpf/test_run.c:505:14: warning: no previous declaration for 'bpf_fentry_test4' [-Wmissing-declarations]
int noinline bpf_fentry_test4(void *a, char b, int c, u64 d)
^~~~~~~~~~~~~~~~
net/bpf/test_run.c:510:14: warning: no previous declaration for 'bpf_fentry_test5' [-Wmissing-declarations]
int noinline bpf_fentry_test5(u64 a, void *b, short c, int d, u64 e)
^~~~~~~~~~~~~~~~
net/bpf/test_run.c:515:14: warning: no previous declaration for 'bpf_fentry_test6' [-Wmissing-declarations]
int noinline bpf_fentry_test6(u64 a, void *b, short c, int d, void *e, u64 f)
^~~~~~~~~~~~~~~~
net/bpf/test_run.c:524:14: warning: no previous declaration for 'bpf_fentry_test7' [-Wmissing-declarations]
int noinline bpf_fentry_test7(struct bpf_fentry_test_t *arg)
^~~~~~~~~~~~~~~~
net/bpf/test_run.c:529:14: warning: no previous declaration for 'bpf_fentry_test8' [-Wmissing-declarations]
int noinline bpf_fentry_test8(struct bpf_fentry_test_t *arg)
^~~~~~~~~~~~~~~~
net/bpf/test_run.c:534:17: warning: no previous declaration for 'bpf_modify_return_test' [-Wmissing-declarations]
__bpf_kfunc int bpf_modify_return_test(int a, int *b)
^~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:540:17: warning: no previous declaration for 'bpf_kfunc_call_test1' [-Wmissing-declarations]
__bpf_kfunc u64 bpf_kfunc_call_test1(struct sock *sk, u32 a, u64 b, u32 c, u64 d)
^~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:545:17: warning: no previous declaration for 'bpf_kfunc_call_test2' [-Wmissing-declarations]
__bpf_kfunc int bpf_kfunc_call_test2(struct sock *sk, u32 a, u32 b)
^~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:550:26: warning: no previous declaration for 'bpf_kfunc_call_test3' [-Wmissing-declarations]
__bpf_kfunc struct sock *bpf_kfunc_call_test3(struct sock *sk)
^~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:555:15: warning: no previous declaration for 'bpf_kfunc_call_test4' [-Wmissing-declarations]
long noinline bpf_kfunc_call_test4(signed char a, short b, int c, long d)
^~~~~~~~~~~~~~~~~~~~
>> net/bpf/test_run.c:563:14: warning: no previous declaration for 'bpf_fentry_shadow_test' [-Wmissing-declarations]
int noinline bpf_fentry_shadow_test(int a)
^~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:593:1: warning: no previous declaration for 'bpf_kfunc_call_test_acquire' [-Wmissing-declarations]
bpf_kfunc_call_test_acquire(unsigned long *scalar_ptr)
^~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:600:1: warning: no previous declaration for 'bpf_kfunc_call_memb_acquire' [-Wmissing-declarations]
bpf_kfunc_call_memb_acquire(void)
^~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:606:18: warning: no previous declaration for 'bpf_kfunc_call_test_release' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_release(struct prog_test_ref_kfunc *p)
^~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:614:18: warning: no previous declaration for 'bpf_kfunc_call_memb_release' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_memb_release(struct prog_test_member *p)
^~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:618:18: warning: no previous declaration for 'bpf_kfunc_call_memb1_release' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_memb1_release(struct prog_test_member1 *p)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:631:18: warning: no previous declaration for 'bpf_kfunc_call_test_get_rdwr_mem' [-Wmissing-declarations]
__bpf_kfunc int *bpf_kfunc_call_test_get_rdwr_mem(struct prog_test_ref_kfunc *p,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:637:18: warning: no previous declaration for 'bpf_kfunc_call_test_get_rdonly_mem' [-Wmissing-declarations]
__bpf_kfunc int *bpf_kfunc_call_test_get_rdonly_mem(struct prog_test_ref_kfunc *p,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:648:18: warning: no previous declaration for 'bpf_kfunc_call_test_acq_rdonly_mem' [-Wmissing-declarations]
__bpf_kfunc int *bpf_kfunc_call_test_acq_rdonly_mem(struct prog_test_ref_kfunc *p,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:654:18: warning: no previous declaration for 'bpf_kfunc_call_int_mem_release' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_int_mem_release(int *p)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:659:1: warning: no previous declaration for 'bpf_kfunc_call_test_kptr_get' [-Wmissing-declarations]
bpf_kfunc_call_test_kptr_get(struct prog_test_ref_kfunc **pp, int a, int b)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:707:18: warning: no previous declaration for 'bpf_kfunc_call_test_pass_ctx' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:711:18: warning: no previous declaration for 'bpf_kfunc_call_test_pass1' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_pass1(struct prog_test_pass1 *p)
^~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:715:18: warning: no previous declaration for 'bpf_kfunc_call_test_pass2' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_pass2(struct prog_test_pass2 *p)
^~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:719:18: warning: no previous declaration for 'bpf_kfunc_call_test_fail1' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p)
^~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:723:18: warning: no previous declaration for 'bpf_kfunc_call_test_fail2' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p)
^~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:727:18: warning: no previous declaration for 'bpf_kfunc_call_test_fail3' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p)
^~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:731:18: warning: no previous declaration for 'bpf_kfunc_call_test_mem_len_pass1' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_mem_len_pass1(void *mem, int mem__sz)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:735:18: warning: no previous declaration for 'bpf_kfunc_call_test_mem_len_fail1' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:739:18: warning: no previous declaration for 'bpf_kfunc_call_test_mem_len_fail2' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_mem_len_fail2(u64 *mem, int len)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:743:18: warning: no previous declaration for 'bpf_kfunc_call_test_ref' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_ref(struct prog_test_ref_kfunc *p)
^~~~~~~~~~~~~~~~~~~~~~~
net/bpf/test_run.c:748:18: warning: no previous declaration for 'bpf_kfunc_call_test_destructive' [-Wmissing-declarations]
__bpf_kfunc void bpf_kfunc_call_test_destructive(void)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/bpf_fentry_shadow_test +563 net/bpf/test_run.c
544
> 545 __bpf_kfunc int bpf_kfunc_call_test2(struct sock *sk, u32 a, u32 b)
546 {
547 return a + b;
548 }
549
550 __bpf_kfunc struct sock *bpf_kfunc_call_test3(struct sock *sk)
551 {
552 return sk;
553 }
554
555 long noinline bpf_kfunc_call_test4(signed char a, short b, int c, long d)
556 {
557 /* Provoke the compiler to assume that the caller has sign-extended a,
558 * b and c on platforms where this is required (e.g. s390x).
559 */
560 return (long)a + (long)b + (long)c + d;
561 }
562
> 563 int noinline bpf_fentry_shadow_test(int a)
564 {
565 return a + 1;
566 }
567
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