Hi Nilesh, I love your patch! Perhaps something to improve: [auto build test WARNING on 3c330f187ea84b13a0c66311115c8fd449dd25a1] url: https://github.com/0day-ci/linux/commits/Nilesh-Javali/SAN-Congestion-Management-SCM-statistics/20210929-162329 base: 3c330f187ea84b13a0c66311115c8fd449dd25a1 config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-linux-gcc (GCC) 11.2.0 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 # https://github.com/0day-ci/linux/commit/f4af1bddbc082f1719040fce0d592feeb4db84a6 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Nilesh-Javali/SAN-Congestion-Management-SCM-statistics/20210929-162329 git checkout f4af1bddbc082f1719040fce0d592feeb4db84a6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 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/scsi_transport_fc.c:645:1: warning: no previous prototype for 'fc_find_rport_by_wwpn' [-Wmissing-prototypes] 645 | fc_find_rport_by_wwpn(struct Scsi_Host *shost, u64 wwpn) | ^~~~~~~~~~~~~~~~~~~~~ vim +/fc_find_rport_by_wwpn +645 drivers/scsi/scsi_transport_fc.c 635 636 /** 637 * fc_find_rport_by_wwpn - find the fc_rport pointer for a given wwpn 638 * @shost: host the fc_rport is associated with 639 * @wwpn: wwpn of the fc_rport device 640 * 641 * Notes: 642 * This routine assumes no locks are held on entry. 643 */ 644 struct fc_rport * > 645 fc_find_rport_by_wwpn(struct Scsi_Host *shost, u64 wwpn) 646 { 647 struct fc_rport *rport, *found = NULL; 648 unsigned long flags; 649 650 spin_lock_irqsave(shost->host_lock, flags); 651 652 list_for_each_entry(rport, &fc_host_rports(shost), peers) { 653 if (rport->scsi_target_id == -1) 654 continue; 655 656 if (rport->port_state != FC_PORTSTATE_ONLINE) 657 continue; 658 659 if (rport->port_name == wwpn) 660 found = rport; 661 } 662 663 spin_unlock_irqrestore(shost->host_lock, flags); 664 return found; 665 } 666 EXPORT_SYMBOL(fc_find_rport_by_wwpn); 667 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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