Hi Johannes,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.18-rc5 next-20180719]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Johannes-Thumshirn/Rework-NVMe-abort-handling/20180719-230642
config: x86_64-randconfig-x011-201828 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/nvme/host/core.c: In function 'abort_endio':
>> drivers/nvme/host/core.c:711:40: error: 'struct nvme_request' has no member named 'ctrl'
     struct nvme_ctrl *ctrl = nvme_req(req)->ctrl;
                                           ^~

vim +711 drivers/nvme/host/core.c

   707	
   708	
   709	static void abort_endio(struct request *req, blk_status_t error)
   710	{
 > 711		struct nvme_ctrl *ctrl = nvme_req(req)->ctrl;
   712	
   713		dev_warn(ctrl->device,
   714			 "Abort status: 0x%x", nvme_req(req)->status);
   715		atomic_inc(&ctrl->abort_limit);
   716		blk_mq_free_request(req);
   717	}
   718	

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