Hi yuan, [auto build test ERROR on net-next/master]
url: https://github.com/0day-ci/linux/commits/yuan-linyu/net-add-skb_memcpy_to-from-_msg/20171016-154618 config: xtensa-allyesconfig (attached as .config) compiler: xtensa-linux-gcc (GCC) 4.9.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=xtensa All error/warnings (new ones prefixed by >>): In file included from include/uapi/linux/if.h:24:0, from include/linux/inetdevice.h:7, from net//ipv4/netfilter/ipt_MASQUERADE.c:13: include/linux/socket.h: In function 'memcpy_from_msg': >> include/linux/socket.h:59:63: error: 'EFAULT' undeclared (first use in this >> function) return copy_from_iter_full(data, len, &msg->msg_iter) ? 0 : -EFAULT; ^ include/linux/socket.h:59:63: note: each undeclared identifier is reported only once for each function it appears in include/linux/socket.h: In function 'memcpy_to_msg': include/linux/socket.h:64:63: error: 'EFAULT' undeclared (first use in this function) return copy_to_iter(data, len, &msg->msg_iter) == len ? 0 : -EFAULT; ^ -- In file included from include/uapi/linux/nfc.h:25:0, from net/nfc/rawsock.c:25: include/linux/socket.h: In function 'memcpy_from_msg': >> include/linux/socket.h:59:63: error: 'EFAULT' undeclared (first use in this >> function) return copy_from_iter_full(data, len, &msg->msg_iter) ? 0 : -EFAULT; ^ include/linux/socket.h:59:63: note: each undeclared identifier is reported only once for each function it appears in include/linux/socket.h: In function 'memcpy_to_msg': include/linux/socket.h:64:63: error: 'EFAULT' undeclared (first use in this function) return copy_to_iter(data, len, &msg->msg_iter) == len ? 0 : -EFAULT; ^ In file included from include/uapi/linux/nfc.h:25:0, from net/nfc/rawsock.c:25: include/linux/socket.h: In function 'memcpy_from_msg': >> include/linux/socket.h:60:1: warning: control reaches end of non-void >> function [-Wreturn-type] } ^ vim +/EFAULT +59 include/linux/socket.h 56 57 static inline int memcpy_from_msg(void *data, struct msghdr *msg, int len) 58 { > 59 return copy_from_iter_full(data, len, &msg->msg_iter) ? 0 : -EFAULT; > 60 } 61 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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