M. Sc. Abhijeet Badurkar Software Engineering Business Unit Computing Systems, duagon duagon Germany GmbH Neuwieder Straße 1-7 90411 Nürnberg Deutschland Phone +49 911 99 33 5 - 219 www.duagon.com duagon Germany GmbH - Geschäftsführer: Dr. Michael Goldbach - Mathias Kamolz - Kalina Scott - Handelsregister/Trade Register AG Nürnberg HRB 5540 This message and/or attachments may be privileged or confidential. If you are not the intended recipient, you are hereby notified that you have received this transmittal in error; any review, dissemination, or copying is strictly prohibited. If you received this transmittal in error, please notify us immediately by reply and immediately delete this message and all its attachments. Thank you. On 16.10.20 09:55, Marc Kleine-Budde wrote: > * PGP Signed by an unknown key > > On 10/16/20 1:49 AM, kernel test robot wrote: >> Hi Abhijeet, >> >> Thank you for the patch! Perhaps something to improve: >> >> [auto build test WARNING on 549738f15da0e5a00275977623be199fbbf7df50] >> >> url: >> https://github.com/0day-ci/linux/commits/Abhijeet-Badurkar/net-can-Introduce-MEN-16Z192-00-CAN-controller-driver/20201005-192132 >> base: 549738f15da0e5a00275977623be199fbbf7df50 >> config: openrisc-randconfig-s031-20201015 (attached as .config) >> compiler: or1k-linux-gcc (GCC) 9.3.0 >> reproduce: >> wget >> https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O >> ~/bin/make.cross >> chmod +x ~/bin/make.cross >> # apt-get install sparse >> # sparse version: v0.6.3-rc1-dirty >> # >> https://github.com/0day-ci/linux/commit/267876771a434b2be3278c2c87d36146c0fac77d >> git remote add linux-review https://github.com/0day-ci/linux >> git fetch --no-tags linux-review >> Abhijeet-Badurkar/net-can-Introduce-MEN-16Z192-00-CAN-controller-driver/20201005-192132 >> git checkout 267876771a434b2be3278c2c87d36146c0fac77d >> # save the attached .config to linux build tree >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 >> CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=openrisc > > I think it's the openrisc arch to blame^w ask here, since their iounmap > doesn't > have __iomem annotation. Yes, only the iounmap of openrisc arch has the problem. Is there any specific reason why it does not have __iomem annotation? What's the possible way to fix this? Wait for iounmap funtion of openrisc to get fixed? > >> >> If you fix the issue, kindly add following tag as appropriate >> Reported-by: kernel test robot <l...@intel.com> >> >> >> "sparse warnings: (new ones prefixed by >>)" >>>> drivers/net/can/men_z192_can.c:1057:17: sparse: sparse: incorrect type in >>>> argument 1 (different address spaces) @@ expected void *addr @@ >>>> got void [noderef] __iomem *[assigned] dev_base @@ >>>> drivers/net/can/men_z192_can.c:1057:17: sparse: expected void *addr >>>> drivers/net/can/men_z192_can.c:1057:17: sparse: got void [noderef] >>>> __iomem *[assigned] dev_base >>>> drivers/net/can/men_z192_can.c:1071:21: sparse: sparse: incorrect type in >>>> argument 1 (different address spaces) @@ expected void *addr @@ >>>> got void [noderef] __iomem *dev_base @@ >> drivers/net/can/men_z192_can.c:1071:21: sparse: expected void *addr >>>> drivers/net/can/men_z192_can.c:1071:21: sparse: got void [noderef] >>>> __iomem *dev_base >> >> vim +1057 drivers/net/can/men_z192_can.c >> >> 962 >> 963 static int men_z192_probe(struct mcb_device *mdev, >> 964 const struct mcb_device_id *id) >> 965 { >> 966 struct device *dev = &mdev->dev; >> 967 struct men_z192 *priv; >> 968 struct net_device *ndev; >> 969 void __iomem *dev_base; >> 970 struct resource *mem; >> 971 u32 timebase; >> 972 int ret = 0; >> 973 int irq; >> 974 >> 975 mem = mcb_request_mem(mdev, dev_name(dev)); >> 976 if (IS_ERR(mem)) { >> 977 dev_err(dev, "failed to request device memory"); >> 978 return PTR_ERR(mem); >> 979 } >> 980 >> 981 dev_base = ioremap(mem->start, resource_size(mem)); >> 982 if (!dev_base) { >> 983 dev_err(dev, "failed to ioremap device memory"); >> 984 ret = -ENXIO; >> 985 goto out_release; >> 986 } >> 987 >> 988 irq = mcb_get_irq(mdev); >> 989 if (irq <= 0) { >> 990 ret = -ENODEV; >> 991 goto out_unmap; >> 992 } >> 993 >> 994 ndev = alloc_candev(sizeof(struct men_z192), 0); >> 995 if (!ndev) { >> 996 dev_err(dev, "failed to allocat the can >> device"); >> 997 ret = -ENOMEM; >> 998 goto out_unmap; >> 999 } >> 1000 >> 1001 ndev->netdev_ops = &men_z192_netdev_ops; >> 1002 ndev->irq = irq; >> 1003 ndev->flags |= IFF_ECHO; >> 1004 >> 1005 priv = netdev_priv(ndev); >> 1006 priv->ndev = ndev; >> 1007 priv->dev = dev; >> 1008 >> 1009 priv->mem = mem; >> 1010 priv->dev_base = dev_base; >> 1011 priv->regs = priv->dev_base + MEN_Z192_REGS_OFFS; >> 1012 >> 1013 timebase = readl(&priv->regs->timebase); >> 1014 if (!timebase) { >> 1015 dev_err(dev, "invalid timebase configured >> (timebase=%d)\n", >> 1016 timebase); >> 1017 ret = -EINVAL; >> 1018 goto out_free_candev; >> 1019 } >> 1020 >> 1021 priv->can.clock.freq = timebase; >> 1022 priv->can.bittiming_const = &men_z192_bittiming_const; >> 1023 priv->can.do_set_mode = men_z192_set_mode; >> 1024 priv->can.do_get_berr_counter = >> men_z192_get_berr_counter; >> 1025 priv->can.ctrlmode_supported = CAN_CTRLMODE_LISTENONLY | >> 1026 CAN_CTRLMODE_3_SAMPLES | >> 1027 CAN_CTRLMODE_LOOPBACK; >> 1028 >> 1029 spin_lock_init(&priv->lock); >> 1030 >> 1031 netif_napi_add(ndev, &priv->napi, men_z192_poll, >> 1032 NAPI_POLL_WEIGHT); >> 1033 >> 1034 skb_queue_head_init(&priv->echoq); >> 1035 >> 1036 mcb_set_drvdata(mdev, ndev); >> 1037 SET_NETDEV_DEV(ndev, dev); >> 1038 >> 1039 ndev->ethtool_ops = &men_z192_ethtool_ops; >> 1040 >> 1041 ret = men_z192_register(ndev); >> 1042 if (ret) { >> 1043 dev_err(dev, "failed to register CAN device"); >> 1044 goto out_free_candev; >> 1045 } >> 1046 >> 1047 devm_can_led_init(ndev); >> 1048 >> 1049 dev_info(dev, "MEN 16z192 CAN driver successfully >> registered\n"); >> 1050 >> 1051 return 0; >> 1052 >> 1053 out_free_candev: >> 1054 netif_napi_del(&priv->napi); >> 1055 free_candev(ndev); >> 1056 out_unmap: >>> 1057 iounmap(dev_base); >> 1058 out_release: >> 1059 mcb_release_mem(mem); >> 1060 return ret; >> 1061 } >> 1062 >> 1063 static void men_z192_remove(struct mcb_device *mdev) >> 1064 { >> 1065 struct net_device *ndev = mcb_get_drvdata(mdev); >> 1066 struct men_z192 *priv = netdev_priv(ndev); >> 1067 >> 1068 unregister_candev(ndev); >> 1069 netif_napi_del(&priv->napi); >> 1070 >>> 1071 iounmap(priv->dev_base); >> 1072 mcb_release_mem(priv->mem); >> 1073 >> 1074 free_candev(ndev); >> 1075 } >> 1076 >> >> --- >> 0-DAY CI Kernel Test Service, Intel Corporation >> https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org >> > > Marc > -- Abhijeet Badurkar - Software Engineer
