Hi Daniel, I love your patch! Perhaps something to improve: [auto build test WARNING on next-20200514] [cannot apply to linus/master v5.7-rc5 v5.7-rc4 v5.7-rc3 v5.7-rc6] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Daniel-Lezcano/thermal-core-Add-... base: c9529331c7a22b8eb7eb03e1e0e221d0f58b43de config: x86_64-rhel-7.6-kselftests (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): int thermal_genl_sampling_temp(int id, int temp) ^~~~~~~~~~~~~~~~~~~~~~~~~~ int thermal_genl_cmd_dumpit(struct sk_buff *skb, struct netlink_callback *cb) ^~~~~~~~~~~~~~~~~~~~~~~ int thermal_genl_cmd_doit(struct sk_buff *skb, struct genl_info *info) ^~~~~~~~~~~~~~~~~~~~~ vim +/thermal_genl_sampling_temp +69 drivers/thermal/thermal_netlink.c 68 70 { 71 struct sk_buff *skb; 72 void *hdr; 73 74 skb = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); 75 if (!skb) 76 return -ENOMEM; 77 78 hdr = genlmsg_put(skb, 0, 0, &thermal_gnl_family, 0, 79 THERMAL_GENL_SAMPLING_TEMP); 80 if (!hdr) 81 return -EMSGSIZE; 82 83 if (nla_put_u32(skb, THERMAL_GENL_ATTR_TZ_ID, id)) 84 goto out_cancel; 85 86 if (nla_put_u32(skb, THERMAL_GENL_ATTR_TZ_TEMP, temp)) 87 goto out_cancel; 88 89 genlmsg_end(skb, hdr); 90 91 genlmsg_multicast(&thermal_gnl_family, skb, 0, 0, GFP_KERNEL); 92 93 return 0; 94 out_cancel: 95 genlmsg_cancel(skb, hdr); 96 nlmsg_free(skb); 97 98 return -EMSGSIZE; 99 } 100 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org