tree: https://github.com/alibaba/cloud-kernel.git linux-next head: e07b931e8ed58352ad4839243454571b6ce59222 commit: dd1253a5eb346d75f6908a2ae713ec6169e5bea6 [207/644] block: remove ->poll_fn config: x86_64-alicloud-customedconfig-4.19.y (attached as .config) compiler: gcc-7 (Debian 7.5.0-5) 7.5.0 reproduce: git checkout dd1253a5eb346d75f6908a2ae713ec6169e5bea6 # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; Note: the alibaba-cloud/linux-next HEAD e07b931e8ed58352ad4839243454571b6ce59222 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): drivers/nvme/host/multipath.c: In function 'nvme_ns_head_poll': found = ns->queue->poll_fn(q, qc, spin); ^~~~~~~ poll_cb drivers/nvme/host/multipath.c: In function 'nvme_mpath_alloc_disk': drivers/nvme/host/multipath.c:281:5: error: 'struct request_queue' has no member named 'poll_fn'; did you mean 'poll_cb'? q->poll_fn = nvme_ns_head_poll; ^~~~~~~ poll_cb vim +230 drivers/nvme/host/multipath.c 32acab3181c705 Christoph Hellwig 2017-11-02 219 7244851b406749 Jens Axboe 2018-11-26 220 static int nvme_ns_head_poll(struct request_queue *q, blk_qc_t qc, bool spin) 32acab3181c705 Christoph Hellwig 2017-11-02 221 { 32acab3181c705 Christoph Hellwig 2017-11-02 222 struct nvme_ns_head *head = q->queuedata; 32acab3181c705 Christoph Hellwig 2017-11-02 223 struct nvme_ns *ns; 35118adb8d4ab3 Jens Axboe 2018-11-06 224 int found = 0; 32acab3181c705 Christoph Hellwig 2017-11-02 225 int srcu_idx; 32acab3181c705 Christoph Hellwig 2017-11-02 226 32acab3181c705 Christoph Hellwig 2017-11-02 227 srcu_idx = srcu_read_lock(&head->srcu); 32acab3181c705 Christoph Hellwig 2017-11-02 228 ns = srcu_dereference(head->current_path, &head->srcu); 0d0b660f214dc4 Christoph Hellwig 2018-05-14 229 if (likely(ns && nvme_path_is_optimized(ns))) 7244851b406749 Jens Axboe 2018-11-26 @230 found = ns->queue->poll_fn(q, qc, spin); 32acab3181c705 Christoph Hellwig 2017-11-02 231 srcu_read_unlock(&head->srcu, srcu_idx); 32acab3181c705 Christoph Hellwig 2017-11-02 232 return found; 32acab3181c705 Christoph Hellwig 2017-11-02 233 } 32acab3181c705 Christoph Hellwig 2017-11-02 234 :::::: The code at line 230 was first introduced by commit :::::: 7244851b406749561344f0d9093e1a2c1b825ebd block: make blk_poll() take a parameter on whether to spin or not :::::: TO: Jens Axboe <axboe(a)kernel.dk&gt; :::::: CC: Caspar Zhang <caspar(a)linux.alibaba.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org