tree: https://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git misc head: 6998ff4e21619d47ebf4f5eb4cafa65c65856221 commit: 2aa0102c6688306548d81a958a6293936904ca75 [148/162] scsi: ibmvfc: Use correlation token to tag commands config: powerpc-randconfig-r033-20201125 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 77e98eaee2e8d4b9b297b66fda5b1e51e2a69999) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git/commit/?id=2aa0102c6688306548d81a958a6293936904ca75 git remote add scsi https://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git git fetch --no-tags scsi misc git checkout 2aa0102c6688306548d81a958a6293936904ca75 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/scsi/ibmvscsi/ibmvfc.c:1696:25: warning: incompatible pointer to integer conversion passing 'struct ibmvfc_event *' to parameter of type '__u64' (aka 'unsigned long long') [-Wint-conversion] vfc_cmd->correlation = cpu_to_be64(evt); ^~~~~~~~~~~~~~~~ include/linux/byteorder/generic.h:92:21: note: expanded from macro 'cpu_to_be64' #define cpu_to_be64 __cpu_to_be64 ^ include/uapi/linux/byteorder/little_endian.h:37:52: note: expanded from macro '__cpu_to_be64' #define __cpu_to_be64(x) ((__force __be64)__swab64((x))) ~~~~~~~~~^~~~ include/uapi/linux/swab.h:133:12: note: expanded from macro '__swab64' __fswab64(x)) ^ include/uapi/linux/swab.h:66:57: note: passing argument to parameter 'val' here static inline __attribute_const__ __u64 __fswab64(__u64 val) ^ drivers/scsi/ibmvscsi/ibmvfc.c:2375:22: warning: incompatible pointer to integer conversion passing 'struct ibmvfc_event *' to parameter of type '__u64' (aka 'unsigned long long') [-Wint-conversion] tmf->correlation = cpu_to_be64(evt); ^~~~~~~~~~~~~~~~ include/linux/byteorder/generic.h:92:21: note: expanded from macro 'cpu_to_be64' #define cpu_to_be64 __cpu_to_be64 ^ include/uapi/linux/byteorder/little_endian.h:37:52: note: expanded from macro '__cpu_to_be64' #define __cpu_to_be64(x) ((__force __be64)__swab64((x))) ~~~~~~~~~^~~~ include/uapi/linux/swab.h:133:12: note: expanded from macro '__swab64' __fswab64(x)) ^ include/uapi/linux/swab.h:66:57: note: passing argument to parameter 'val' here static inline __attribute_const__ __u64 __fswab64(__u64 val) ^ 2 warnings generated. vim +1696 drivers/scsi/ibmvscsi/ibmvfc.c 1648 1649 /** 1650 * ibmvfc_queuecommand - The queuecommand function of the scsi template 1651 * @cmnd: struct scsi_cmnd to be executed 1652 * @done: Callback function to be called when cmnd is completed 1653 * 1654 * Returns: 1655 * 0 on success / other on failure 1656 **/ 1657 static int ibmvfc_queuecommand_lck(struct scsi_cmnd *cmnd, 1658 void (*done) (struct scsi_cmnd *)) 1659 { 1660 struct ibmvfc_host *vhost = shost_priv(cmnd->device->host); 1661 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); 1662 struct ibmvfc_cmd *vfc_cmd; 1663 struct ibmvfc_event *evt; 1664 int rc; 1665 1666 if (unlikely((rc = fc_remote_port_chkready(rport))) || 1667 unlikely((rc = ibmvfc_host_chkready(vhost)))) { 1668 cmnd->result = rc; 1669 done(cmnd); 1670 return 0; 1671 } 1672 1673 cmnd->result = (DID_OK << 16); 1674 evt = ibmvfc_get_event(vhost); 1675 ibmvfc_init_event(evt, ibmvfc_scsi_done, IBMVFC_CMD_FORMAT); 1676 evt->cmnd = cmnd; 1677 cmnd->scsi_done = done; 1678 vfc_cmd = &evt->iu.cmd; 1679 memset(vfc_cmd, 0, sizeof(*vfc_cmd)); 1680 vfc_cmd->resp.va = cpu_to_be64(be64_to_cpu(evt->crq.ioba) + offsetof(struct ibmvfc_cmd, rsp)); 1681 vfc_cmd->resp.len = cpu_to_be32(sizeof(vfc_cmd->rsp)); 1682 vfc_cmd->frame_type = cpu_to_be32(IBMVFC_SCSI_FCP_TYPE); 1683 vfc_cmd->payload_len = cpu_to_be32(sizeof(vfc_cmd->iu)); 1684 vfc_cmd->resp_len = cpu_to_be32(sizeof(vfc_cmd->rsp)); 1685 vfc_cmd->cancel_key = cpu_to_be32((unsigned long)cmnd->device->hostdata); 1686 vfc_cmd->tgt_scsi_id = cpu_to_be64(rport->port_id); 1687 vfc_cmd->iu.xfer_len = cpu_to_be32(scsi_bufflen(cmnd)); 1688 int_to_scsilun(cmnd->device->lun, &vfc_cmd->iu.lun); 1689 memcpy(vfc_cmd->iu.cdb, cmnd->cmnd, cmnd->cmd_len); 1690 1691 if (cmnd->flags & SCMD_TAGGED) { 1692 vfc_cmd->task_tag = cpu_to_be64(cmnd->tag); 1693 vfc_cmd->iu.pri_task_attr = IBMVFC_SIMPLE_TASK; 1694 } 1695 > 1696 vfc_cmd->correlation = cpu_to_be64(evt); 1697 1698 if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev)))) 1699 return ibmvfc_send_event(evt, vhost, 0); 1700 1701 ibmvfc_free_event(evt); 1702 if (rc == -ENOMEM) 1703 return SCSI_MLQUEUE_HOST_BUSY; 1704 1705 if (vhost->log_level > IBMVFC_DEFAULT_LOG_LEVEL) 1706 scmd_printk(KERN_ERR, cmnd, 1707 "Failed to map DMA buffer for command. rc=%d\n", rc); 1708 1709 cmnd->result = DID_ERROR << 16; 1710 done(cmnd); 1711 return 0; 1712 } 1713 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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