Hi Mickaël, [auto build test WARNING on net-next/master]
url: https://github.com/0day-ci/linux/commits/Micka-l-Sala-n/Landlock-LSM-Toward-unprivileged-sandboxing/20170329-211258 config: i386-randconfig-x002-201713 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): kernel/bpf/syscall.c: In function 'bpf_prog_load': >> kernel/bpf/syscall.c:886:25: warning: cast to pointer from integer of >> different size [-Wint-to-pointer-cast] size = check_user_buf((void __user *)attr->prog_subtype, ^ vim +886 kernel/bpf/syscall.c 870 871 prog->orig_prog = NULL; 872 prog->jited = 0; 873 874 atomic_set(&prog->aux->refcnt, 1); 875 prog->gpl_compatible = is_gpl ? 1 : 0; 876 877 /* find program type: socket_filter vs tracing_filter */ 878 err = find_prog_type(type, prog); 879 if (err < 0) 880 goto free_prog; 881 882 /* copy eBPF program subtype from user space */ 883 if (attr->prog_subtype) { 884 __u32 size; 885 > 886 size = check_user_buf((void __user *)attr->prog_subtype, 887 attr->prog_subtype_size, 888 sizeof(prog->subtype)); 889 if (size < 0) { 890 err = size; 891 goto free_prog; 892 } 893 /* prog->subtype is __GFP_ZERO */ 894 if (copy_from_user(&prog->subtype, --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
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