Hi Masatake, Kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master head: 9142a0d5f63fe4901fa335bdf97a0368515456f9 commit: 9142a0d5f63fe4901fa335bdf97a0368515456f9 [18/18] Bluetooth: /proc/net/ entries for bluetooth protocols config: i386-randconfig-b002 (attached as .config) All related error/warning messages: net/bluetooth/af_bluetooth.c: In function 'bt_seq_open': net/bluetooth/af_bluetooth.c:623:2: error: implicit declaration of function 'PDE' [-Werror=implicit-function-declaration] net/bluetooth/af_bluetooth.c:623:22: error: invalid type argument of '->' (have 'int') net/bluetooth/af_bluetooth.c: In function 'bt_procfs_init': net/bluetooth/af_bluetooth.c:647:2: error: implicit declaration of function 'proc_net_fops_create' [-Werror=implicit-function-declaration] net/bluetooth/af_bluetooth.c:647:6: warning: assignment makes pointer from integer without a cast [enabled by default] net/bluetooth/af_bluetooth.c:651:5: error: dereferencing pointer to incomplete type net/bluetooth/af_bluetooth.c: In function 'bt_procfs_cleanup': net/bluetooth/af_bluetooth.c:658:2: error: implicit declaration of function 'proc_net_remove' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors vim +623 net/bluetooth/af_bluetooth.c 620 struct bt_sock_list *sk_list; 621 struct bt_seq_state *s; 622 > 623 sk_list = PDE(inode)->data; 624 s = __seq_open_private(file, &bt_seq_ops, 625 sizeof(struct bt_seq_state)); 626 if (s == NULL) --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation