Hi Aswath, I love your patch! Perhaps something to improve: [auto build test WARNING on mkl-can-next/testing] [also build test WARNING on robh/for-next linus/master v5.12-rc6 next-20210409] [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/Aswath-Govindraju/CAN-TRANSCEIVE... base: https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git testing config: sh-allmodconfig (attached as .config) compiler: sh4-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/4c36c3573a45d758ed08da12e803ddd1c... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Aswath-Govindraju/CAN-TRANSCEIVER-Add-support-for-CAN-transceivers/20210409-214324 git checkout 4c36c3573a45d758ed08da12e803ddd1c99b52b7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 77 | int can_transceiver_phy_probe(struct platform_device *pdev) | ^~~~~~~~~~~~~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SND_ATMEL_SOC_PDC Depends on SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC && HAS_DMA Selected by - SND_ATMEL_SOC_SSC && SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC - SND_ATMEL_SOC_SSC_PDC && SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC && ATMEL_SSC vim +/can_transceiver_phy_probe +77 drivers/phy/phy-can-transceiver.c 76 78 { 79 struct phy_provider *phy_provider; 80 struct device *dev = &pdev->dev; 81 struct can_transceiver_phy *can_transceiver_phy; 82 const struct can_transceiver_data *drvdata; 83 const struct of_device_id *match; 84 struct phy *phy; 85 struct gpio_desc *standby_gpio; 86 struct gpio_desc *enable_gpio; 87 u32 max_bitrate = 0; 88 89 can_transceiver_phy = devm_kzalloc(dev, sizeof(struct can_transceiver_phy), GFP_KERNEL); 90 91 match = of_match_node(can_transceiver_phy_ids, pdev->dev.of_node); 92 drvdata = match->data; 93 94 phy = devm_phy_create(dev, dev->of_node, 95 &can_transceiver_phy_ops); 96 if (IS_ERR(phy)) { 97 dev_err(dev, "failed to create can transceiver phy\n"); 98 return PTR_ERR(phy); 99 } 100 101 device_property_read_u32(dev, "max-bitrate", &max_bitrate); 102 phy->attrs.max_link_rate = max_bitrate / 1000000; 103 104 can_transceiver_phy->generic_phy = phy; 105 106 if (drvdata->flags & STB_PRESENT) { 107 standby_gpio = devm_gpiod_get(dev, "standby", GPIOD_OUT_LOW); 108 if (IS_ERR(standby_gpio)) 109 return PTR_ERR(standby_gpio); 110 can_transceiver_phy->standby_gpio = standby_gpio; 111 } 112 113 if (drvdata->flags & EN_PRESENT) { 114 enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); 115 if (IS_ERR(enable_gpio)) 116 return PTR_ERR(enable_gpio); 117 can_transceiver_phy->enable_gpio = enable_gpio; 118 } 119 120 phy_set_drvdata(can_transceiver_phy->generic_phy, can_transceiver_phy); 121 122 phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); 123 124 return PTR_ERR_OR_ZERO(phy_provider); 125 } 126 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org