Hi Tony, I love your patch! Perhaps something to improve: [auto build test WARNING on s390/features] [also build test WARNING on linus/master kvms390/next linux/master v5.9 next-20201022] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Tony-Krowiak/s390-vfio-ap-dynamic-configuration-support/20201023-011543 base: https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features config: s390-allyesconfig (attached as .config) compiler: s390-linux-gcc (GCC) 9.3.0 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/572c94c40a76754d49f07e4e383097d2db132f8c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Tony-Krowiak/s390-vfio-ap-dynamic-configuration-support/20201023-011543 git checkout 572c94c40a76754d49f07e4e383097d2db132f8c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 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/s390/crypto/vfio_ap_ops.c:1119:5: warning: no previous prototype for 'vfio_ap_mdev_reset_queue' [-Wmissing-prototypes] 1119 | int vfio_ap_mdev_reset_queue(unsigned int apid, unsigned int apqi, | ^~~~~~~~~~~~~~~~~~~~~~~~ vim +/vfio_ap_mdev_reset_queue +1119 drivers/s390/crypto/vfio_ap_ops.c 258287c994de8f Tony Krowiak 2018-09-25 1118 ec89b55e3bce7c Pierre Morel 2019-05-21 @1119 int vfio_ap_mdev_reset_queue(unsigned int apid, unsigned int apqi, 46a7263d4746a2 Tony Krowiak 2018-09-25 1120 unsigned int retry) 46a7263d4746a2 Tony Krowiak 2018-09-25 1121 { 46a7263d4746a2 Tony Krowiak 2018-09-25 1122 struct ap_queue_status status; ec89b55e3bce7c Pierre Morel 2019-05-21 1123 int retry2 = 2; ec89b55e3bce7c Pierre Morel 2019-05-21 1124 int apqn = AP_MKQID(apid, apqi); 46a7263d4746a2 Tony Krowiak 2018-09-25 1125 46a7263d4746a2 Tony Krowiak 2018-09-25 1126 do { ec89b55e3bce7c Pierre Morel 2019-05-21 1127 status = ap_zapq(apqn); 46a7263d4746a2 Tony Krowiak 2018-09-25 1128 switch (status.response_code) { 46a7263d4746a2 Tony Krowiak 2018-09-25 1129 case AP_RESPONSE_NORMAL: ec89b55e3bce7c Pierre Morel 2019-05-21 1130 while (!status.queue_empty && retry2--) { ec89b55e3bce7c Pierre Morel 2019-05-21 1131 msleep(20); ec89b55e3bce7c Pierre Morel 2019-05-21 1132 status = ap_tapq(apqn, NULL); ec89b55e3bce7c Pierre Morel 2019-05-21 1133 } 024cdcdbf3cf99 Halil Pasic 2019-09-03 1134 WARN_ON_ONCE(retry2 <= 0); 46a7263d4746a2 Tony Krowiak 2018-09-25 1135 return 0; 46a7263d4746a2 Tony Krowiak 2018-09-25 1136 case AP_RESPONSE_RESET_IN_PROGRESS: 46a7263d4746a2 Tony Krowiak 2018-09-25 1137 case AP_RESPONSE_BUSY: 46a7263d4746a2 Tony Krowiak 2018-09-25 1138 msleep(20); 46a7263d4746a2 Tony Krowiak 2018-09-25 1139 break; 46a7263d4746a2 Tony Krowiak 2018-09-25 1140 default: 46a7263d4746a2 Tony Krowiak 2018-09-25 1141 /* things are really broken, give up */ 46a7263d4746a2 Tony Krowiak 2018-09-25 1142 return -EIO; 46a7263d4746a2 Tony Krowiak 2018-09-25 1143 } 46a7263d4746a2 Tony Krowiak 2018-09-25 1144 } while (retry--); 46a7263d4746a2 Tony Krowiak 2018-09-25 1145 46a7263d4746a2 Tony Krowiak 2018-09-25 1146 return -EBUSY; 46a7263d4746a2 Tony Krowiak 2018-09-25 1147 } 46a7263d4746a2 Tony Krowiak 2018-09-25 1148 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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