Re: [PATCH v11 01/14] s390/vfio-ap: No need to disable IRQ after queue reset
From: Tony Krowiak
Date: Mon Oct 26 2020 - 12:57:25 EST
On 10/22/20 3:44 PM, kernel test robot wrote:
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,
| ^~~~~~~~~~~~~~~~~~~~~~~~
This function needs to be made static because it is no longer defined in
the header file.
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
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0-DAY CI Kernel Test Service, Intel Corporation
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