Messages in this thread | | | Date | Wed, 6 Jul 2022 11:58:22 +0800 | From | kernel test robot <> | Subject | [jolsa-perf:bpf/tramp_22 21/21] kernel/bpf/syscall.c:3137:22: error: implicit declaration of function 'bpf_trampoline_multi_detach' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/tramp_22 head: 1d891c46bb689a24985cea58f4eddb053d6b1331 commit: 1d891c46bb689a24985cea58f4eddb053d6b1331 [21/21] bpf: Add support to attach multi trampolines config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20220706/202207061138.sopuGQ2w-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=1d891c46bb689a24985cea58f4eddb053d6b1331 git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git git fetch --no-tags jolsa-perf bpf/tramp_22 git checkout 1d891c46bb689a24985cea58f4eddb053d6b1331 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from arch/x86/include/asm/bug.h:87, from include/linux/bug.h:5, from include/linux/cpumask.h:14, from arch/x86/include/asm/cpumask.h:5, from arch/x86/include/asm/msr.h:11, from arch/x86/include/asm/processor.h:22, from arch/x86/include/asm/timex.h:5, from include/linux/timex.h:67, from include/linux/time32.h:13, from include/linux/time.h:60, from include/linux/ktime.h:24, from include/linux/timer.h:6, from include/linux/workqueue.h:9, from include/linux/bpf.h:10, from kernel/bpf/syscall.c:4: kernel/bpf/syscall.c: In function 'bpf_tracing_multi_link_release': >> kernel/bpf/syscall.c:3137:22: error: implicit declaration of function 'bpf_trampoline_multi_detach' [-Werror=implicit-function-declaration] 3137 | WARN_ON_ONCE(bpf_trampoline_multi_detach(&tr_link->tp, tr_link->id)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:110:32: note: in definition of macro 'WARN_ON_ONCE' 110 | int __ret_warn_on = !!(condition); \ | ^~~~~~~~~ kernel/bpf/syscall.c: In function 'bpf_tracing_multi_attach': kernel/bpf/syscall.c:3307:14: error: implicit declaration of function 'bpf_tramp_id_alloc'; did you mean 'bpf_tramp_id_resolve'? [-Werror=implicit-function-declaration] 3307 | id = bpf_tramp_id_alloc(cnt); | ^~~~~~~~~~~~~~~~~~ | bpf_tramp_id_resolve kernel/bpf/syscall.c:3307:12: warning: assignment to 'struct bpf_tramp_id *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 3307 | id = bpf_tramp_id_alloc(cnt); | ^ >> kernel/bpf/syscall.c:3348:15: error: implicit declaration of function 'bpf_trampoline_multi_attach'; did you mean 'bpf_tracing_multi_attach'? [-Werror=implicit-function-declaration] 3348 | err = bpf_trampoline_multi_attach(&link->tp, id); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ | bpf_tracing_multi_attach cc1: some warnings being treated as errors
vim +/bpf_trampoline_multi_detach +3137 kernel/bpf/syscall.c
3131 3132 static void bpf_tracing_multi_link_release(struct bpf_link *link) 3133 { 3134 struct bpf_tracing_multi_link *tr_link = 3135 container_of(link, struct bpf_tracing_multi_link, link); 3136 > 3137 WARN_ON_ONCE(bpf_trampoline_multi_detach(&tr_link->tp, tr_link->id)); 3138 } 3139
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