tree: https://github.com/congwang/linux.git sch_bpf2 head: 470563412d91de9179d50b7f311a39f1a46321ab commit: 470563412d91de9179d50b7f311a39f1a46321ab [2/2] net_sched: introduce eBPF based Qdisc config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-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://github.com/congwang/linux/commit/470563412d91de9179d50b7f311a39f1... git remote add congwang https://github.com/congwang/linux.git git fetch --no-tags congwang sch_bpf2 git checkout 470563412d91de9179d50b7f311a39f1a46321ab # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): net/sched/sch_bpf.c: In function 'sch_bpf_dump': 90 | u32 bpf_flags = 0; | ^~~~~~~~~ net/sched/sch_bpf.c: In function 'sch_bpf_dump_class_stats': net/sched/sch_bpf.c:535:31: error: unused variable 'q' [-Werror=unused-variable] 535 | struct sch_bpf_qdisc *q = qdisc_priv(sch); | ^ cc1: all warnings being treated as errors vim +/bpf_flags +90 net/sched/sch_bpf.c 85 86 static int sch_bpf_dump(struct Qdisc *sch, struct sk_buff *skb) 87 { 88 struct sch_bpf_qdisc *q = qdisc_priv(sch); 89 struct nlattr *opts; 91 92 opts = nla_nest_start_noflag(skb, TCA_OPTIONS); 93 if (!opts) 94 goto nla_put_failure; 95 96 if (nla_put_u32(skb, TCA_SCH_BPF_MODE, q->mode)) 97 goto nla_put_failure; 98 99 if (sch_bpf_dump_prog(&q->enqueue_prog, skb, TCA_SCH_BPF_ENQUEUE_PROG_NAME, 100 TCA_SCH_BPF_ENQUEUE_PROG_ID, TCA_SCH_BPF_ENQUEUE_PROG_TAG)) 101 goto nla_put_failure; 102 if (sch_bpf_dump_prog(&q->dequeue_prog, skb, TCA_SCH_BPF_DEQUEUE_PROG_NAME, 103 TCA_SCH_BPF_DEQUEUE_PROG_ID, TCA_SCH_BPF_DEQUEUE_PROG_TAG)) 104 goto nla_put_failure; 105 106 return nla_nest_end(skb, opts); 107 108 nla_put_failure: 109 return -1; 110 } 111 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org