Messages in this thread | | | Date | Thu, 3 Feb 2022 22:05:59 +0800 | From | kernel test robot <> | Subject | [ast-bpf:skel 1/5] kernel/bpf/syscall.c:4794:56: warning: cast to pointer from integer of different size |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/ast/bpf.git skel head: 90109bb4d0dabc315c7fa82d193d9e7a54ee18c7 commit: e20a0273d1b34b0a5f1ec45b3ad2038b465f0b54 [1/5] bpf: Extend sys_bpf commands for bpf_syscall programs. config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20220203/202202031502.vruI1NMM-lkp@intel.com/config) compiler: sh4-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/ast/bpf.git/commit/?id=e20a0273d1b34b0a5f1ec45b3ad2038b465f0b54 git remote add ast-bpf https://git.kernel.org/pub/scm/linux/kernel/git/ast/bpf.git git fetch --no-tags ast-bpf skel git checkout e20a0273d1b34b0a5f1ec45b3ad2038b465f0b54 # 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=sh 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_sys_bpf': >> kernel/bpf/syscall.c:4794:56: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 4794 | attr->test.retval = bpf_prog_run(prog, (void *) attr->test.ctx_in); | ^
vim +4794 kernel/bpf/syscall.c
4759 4760 BPF_CALL_3(bpf_sys_bpf, int, cmd, union bpf_attr *, attr, u32, attr_size) 4761 { 4762 struct bpf_prog *prog; 4763 4764 switch (cmd) { 4765 case BPF_MAP_CREATE: 4766 case BPF_MAP_UPDATE_ELEM: 4767 case BPF_MAP_FREEZE: 4768 case BPF_PROG_LOAD: 4769 case BPF_BTF_LOAD: 4770 case BPF_LINK_CREATE: 4771 case BPF_RAW_TRACEPOINT_OPEN: 4772 break; 4773 case BPF_PROG_TEST_RUN: 4774 if (attr->test.data_in || attr->test.data_out || 4775 attr->test.ctx_out || attr->test.duration || 4776 attr->test.repeat || attr->test.flags) 4777 return -EINVAL; 4778 4779 prog = bpf_prog_get_type(attr->test.prog_fd, BPF_PROG_TYPE_SYSCALL); 4780 if (IS_ERR(prog)) 4781 return PTR_ERR(prog); 4782 4783 if (attr->test.ctx_size_in < prog->aux->max_ctx_offset || 4784 attr->test.ctx_size_in > U16_MAX) { 4785 bpf_prog_put(prog); 4786 return -EINVAL; 4787 } 4788 4789 if (!__bpf_prog_enter_sleepable(prog)) { 4790 /* recursion detected */ 4791 bpf_prog_put(prog); 4792 return -EBUSY; 4793 } > 4794 attr->test.retval = bpf_prog_run(prog, (void *) attr->test.ctx_in); 4795 __bpf_prog_exit_sleepable(prog, 0 /* bpf_prog_run does runtime stats */); 4796 bpf_prog_put(prog); 4797 return 0; 4798 default: 4799 return -EINVAL; 4800 } 4801 return __sys_bpf(cmd, KERNEL_BPFPTR(attr), attr_size); 4802 } 4803 EXPORT_SYMBOL(bpf_sys_bpf); 4804
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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