Messages in this thread | | | Date | Wed, 6 Jul 2022 11:48:00 +0800 | From | kernel test robot <> | Subject | [jolsa-perf:bpf/tramp_22 21/21] kernel/bpf/syscall.c:3137:15: error: call to undeclared function 'bpf_trampoline_multi_detach'; ISO C99 and later do not support implicit function declarations |
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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-a012 (https://download.01.org/0day-ci/archive/20220706/202207061102.sgu5KQzw-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 142aca7741d5b06207e87bf4880fbe308c8d6823) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # 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 COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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 >>):
>> kernel/bpf/syscall.c:3137:15: error: call to undeclared function 'bpf_trampoline_multi_detach'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] WARN_ON_ONCE(bpf_trampoline_multi_detach(&tr_link->tp, tr_link->id)); ^ kernel/bpf/syscall.c:3307:7: error: call to undeclared function 'bpf_tramp_id_alloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] id = bpf_tramp_id_alloc(cnt); ^ kernel/bpf/syscall.c:3307:5: warning: incompatible integer to pointer conversion assigning to 'struct bpf_tramp_id *' from 'int' [-Wint-conversion] id = bpf_tramp_id_alloc(cnt); ^ ~~~~~~~~~~~~~~~~~~~~~~~ >> kernel/bpf/syscall.c:3348:8: error: call to undeclared function 'bpf_trampoline_multi_attach'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] err = bpf_trampoline_multi_attach(&link->tp, id); ^ kernel/bpf/syscall.c:3348:8: note: did you mean 'bpf_tracing_multi_attach'? kernel/bpf/syscall.c:3292:12: note: 'bpf_tracing_multi_attach' declared here static int bpf_tracing_multi_attach(struct bpf_prog *prog, ^ 1 warning and 3 errors generated.
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
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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