tree: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git queue head: c892193c1ec595e7f3f599ce817697d9a3d17f81 commit: 54b04c99d02e4c3e442fcb1e77f4ca6515be8826 [116/118] scsi: ibmvfc: Avoid loss of all paths during SVC node reboot config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 54b04c99d02e4c3e442fcb1e77f4ca6515be8826 # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from include/uapi/linux/posix_types.h:5:0, from include/uapi/linux/types.h:14, from include/linux/types.h:6, from include/linux/list.h:5, from include/linux/module.h:12, from drivers/scsi/ibmvscsi/ibmvfc.c:10: drivers/scsi/ibmvscsi/ibmvfc.c: In function 'ibmvfc_tgt_implicit_logout_and_del': #define NULL ((void *)0) ^ return NULL; ^~~~ drivers/scsi/ibmvscsi/ibmvfc.c:3638:13: note: declared here static void ibmvfc_tgt_implicit_logout_and_del(struct ibmvfc_target *tgt) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/uapi/linux/posix_types.h:5:0, from include/uapi/linux/types.h:14, from include/linux/types.h:6, from include/linux/list.h:5, from include/linux/module.h:12, from drivers/scsi//ibmvscsi/ibmvfc.c:10: drivers/scsi//ibmvscsi/ibmvfc.c: In function 'ibmvfc_tgt_implicit_logout_and_del': #define NULL ((void *)0) ^ drivers/scsi//ibmvscsi/ibmvfc.c:3644:10: note: in expansion of macro 'NULL' return NULL; ^~~~ drivers/scsi//ibmvscsi/ibmvfc.c:3638:13: note: declared here static void ibmvfc_tgt_implicit_logout_and_del(struct ibmvfc_target *tgt) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/NULL +3644 drivers/scsi/ibmvscsi/ibmvfc.c 3632 3633 /** 3634 * ibmvfc_tgt_implicit_logout_and_del - Initiate an Implicit Logout for specified target 3635 * @tgt: ibmvfc target struct 3636 * 3637 **/ 3638 static void ibmvfc_tgt_implicit_logout_and_del(struct ibmvfc_target *tgt) 3639 { 3640 struct ibmvfc_host *vhost = tgt->vhost; 3641 struct ibmvfc_event *evt; 3642 3643 if (vhost->discovery_threads >= disc_threads) 3645 3646 vhost->discovery_threads++; 3647 evt = __ibmvfc_tgt_get_implicit_logout_evt(tgt, 3648 ibmvfc_tgt_implicit_logout_and_del_done); 3649 3650 ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT); 3651 if (ibmvfc_send_event(evt, vhost, default_timeout)) { 3652 vhost->discovery_threads--; 3653 ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); 3654 kref_put(&tgt->kref, ibmvfc_release_tgt); 3655 } else 3656 tgt_dbg(tgt, "Sent Implicit Logout\n"); 3657 } 3658 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org