Hi, [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Martin-KaFai-Lau/cgroup-Add-cgroup_get_from_fd/20160623-052247 config: x86_64-lkp (attached as .config) compiler: gcc-4.9 (Debian 4.9.3-14) 4.9.3 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): net/core/filter.c: In function 'bpf_skb_in_cgroup': >> net/core/filter.c:2050:2: error: implicit declaration of function 'sock_cgroup_ptr' [-Werror=implicit-function-declaration] return cgroup_is_descendant(sock_cgroup_ptr(&sk->sk_cgrp_data), cgrp); ^ net/core/filter.c:2050:30: warning: passing argument 1 of 'cgroup_is_descendant' makes pointer from integer without a cast return cgroup_is_descendant(sock_cgroup_ptr(&sk->sk_cgrp_data), cgrp); ^ In file included from include/net/netprio_cgroup.h:17:0, from include/linux/netdevice.h:48, from net/core/filter.c:31: include/linux/cgroup.h:492:20: note: expected 'struct cgroup *' but argument is of type 'int' static inline bool cgroup_is_descendant(struct cgroup *cgrp, ^ cc1: some warnings being treated as errors vim +/sock_cgroup_ptr +2050 net/core/filter.c 2044 return -E2BIG; 2045 2046 cgrp = READ_ONCE(array->ptrs[i]); 2047 if (unlikely(!cgrp)) 2048 return -ENOENT; 2049 > 2050 return cgroup_is_descendant(sock_cgroup_ptr(&sk->sk_cgrp_data), cgrp); 2051 } 2052 2053 static const struct bpf_func_proto bpf_skb_in_cgroup_proto = { --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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