Messages in this thread | | | Date | Tue, 28 Dec 2021 00:57:06 +0800 | From | kernel test robot <> | Subject | [jolsa-perf:kprobe/multi 8/13] kernel/bpf/syscall.c:3099:32: warning: initialization of 'struct kretprobe *' from 'int' makes pointer from integer without a cast |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git kprobe/multi head: bc59262730d5cfc95d6cae84f247d2e8690a309b commit: 9308a22da930865f9cc80a47f3d0ced38aae1a0a [8/13] bpf: Add kprobe link for attaching raw kprobes config: nds32-randconfig-r032-20211227 (https://download.01.org/0day-ci/archive/20211228/202112280010.ufkJQV03-lkp@intel.com/config) compiler: nds32le-linux-gcc (GCC) 11.2.0 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=9308a22da930865f9cc80a47f3d0ced38aae1a0a git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git git fetch --no-tags jolsa-perf kprobe/multi git checkout 9308a22da930865f9cc80a47f3d0ced38aae1a0a # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nds32 SHELL=/bin/bash kernel/bpf/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
kernel/bpf/syscall.c: In function 'bpf_perf_link_attach': kernel/bpf/syscall.c:3021:17: error: 'ENOTSUP' undeclared (first use in this function); did you mean 'ENOTSUPP'? 3021 | return -ENOTSUP; | ^~~~~~~ | ENOTSUPP kernel/bpf/syscall.c:3021:17: note: each undeclared identifier is reported only once for each function it appears in kernel/bpf/syscall.c: In function 'kretprobe_dispatcher': kernel/bpf/syscall.c:3099:32: error: implicit declaration of function 'get_kretprobe'; did you mean 'get_kprobe'? [-Werror=implicit-function-declaration] 3099 | struct kretprobe *rp = get_kretprobe(ri); | ^~~~~~~~~~~~~ | get_kprobe >> kernel/bpf/syscall.c:3099:32: warning: initialization of 'struct kretprobe *' from 'int' makes pointer from integer without a cast [-Wint-conversion] kernel/bpf/syscall.c: In function 'bpf_perf_link_attach': kernel/bpf/syscall.c:3022:1: error: control reaches end of non-void function [-Werror=return-type] 3022 | } | ^ cc1: some warnings being treated as errors
vim +3099 kernel/bpf/syscall.c
3095 3096 static int 3097 kretprobe_dispatcher(struct kretprobe_instance *ri, struct pt_regs *regs) 3098 { > 3099 struct kretprobe *rp = get_kretprobe(ri); 3100 struct bpf_kprobe_link *kprobe_link; 3101 3102 kprobe_link = container_of(rp, struct bpf_kprobe_link, rp); 3103 return kprobe_link_prog_run(kprobe_link, regs); 3104 } 3105
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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