Hi Jason, First bad commit (maybe != root cause): tree: https://github.com/Freescale/linux-fslc pr/341 head: a9cd93bab1195c192188b78911e8e2bf47cfd6c2 commit: 5bb09de3044acf91e6f8c712c026d5a4bc53b563 [15241/18812] MLK-24874-1: include: uapi: fmd: fix the UAPI_HEADER_TEST/install failure config: xtensa-randconfig-s032-20210519 (attached as .config) compiler: xtensa-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: v0.6.3-341-g8af24329-dirty # https://github.com/Freescale/linux-fslc/commit/5bb09de3044acf91e6f8c712c0... git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc pr/341 git checkout 5bb09de3044acf91e6f8c712c026d5a4bc53b563 # 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__' W=1 ARCH=xtensa If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/reset/reset-imx-hdmimix.c:134:23: sparse: expected void [noderef] <asn:2> *base drivers/reset/reset-imx-hdmimix.c:134:23: sparse: got void * drivers/reset/reset-imx-hdmimix.c: note: in included file (through arch/xtensa/include/asm/io.h, include/linux/io.h): include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restricted __le32 [usertype] @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restricted __le32 [usertype] @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 -- drivers/reset/reset-imx-audiomix.c:93:23: sparse: expected void [noderef] <asn:2> *base drivers/reset/reset-imx-audiomix.c:93:23: sparse: got void * drivers/reset/reset-imx-audiomix.c: note: in included file (through arch/xtensa/include/asm/io.h, include/linux/io.h): include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restricted __le32 [usertype] @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32 include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] value @@ got restricted __le32 [usertype] @@ include/asm-generic/io.h:225:22: sparse: expected unsigned int [usertype] value include/asm-generic/io.h:225:22: sparse: got restricted __le32 [usertype] vim +134 drivers/reset/reset-imx-hdmimix.c d4b6fb2adc1967 Sandor Yu 2020-01-19 124 d4b6fb2adc1967 Sandor Yu 2020-01-19 125 static int imx_hdmimix_reset_probe(struct platform_device *pdev) d4b6fb2adc1967 Sandor Yu 2020-01-19 126 { d4b6fb2adc1967 Sandor Yu 2020-01-19 127 struct imx_hdmimix_reset_data *drvdata; d4b6fb2adc1967 Sandor Yu 2020-01-19 128 struct device *dev = &pdev->dev; d4b6fb2adc1967 Sandor Yu 2020-01-19 129 d4b6fb2adc1967 Sandor Yu 2020-01-19 130 drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); d4b6fb2adc1967 Sandor Yu 2020-01-19 131 if (drvdata == NULL) d4b6fb2adc1967 Sandor Yu 2020-01-19 132 return -ENOMEM; d4b6fb2adc1967 Sandor Yu 2020-01-19 133 d4b6fb2adc1967 Sandor Yu 2020-01-19 @134 drvdata->base = dev_get_drvdata(dev->parent); d4b6fb2adc1967 Sandor Yu 2020-01-19 135 d4b6fb2adc1967 Sandor Yu 2020-01-19 136 platform_set_drvdata(pdev, drvdata); d4b6fb2adc1967 Sandor Yu 2020-01-19 137 d4b6fb2adc1967 Sandor Yu 2020-01-19 138 pm_runtime_enable(dev); d4b6fb2adc1967 Sandor Yu 2020-01-19 139 d4b6fb2adc1967 Sandor Yu 2020-01-19 140 spin_lock_init(&drvdata->lock); d4b6fb2adc1967 Sandor Yu 2020-01-19 141 d4b6fb2adc1967 Sandor Yu 2020-01-19 142 drvdata->rcdev.owner = THIS_MODULE; d4b6fb2adc1967 Sandor Yu 2020-01-19 143 drvdata->rcdev.nr_resets = IMX_HDMIMIX_RESET_NUM; d4b6fb2adc1967 Sandor Yu 2020-01-19 144 drvdata->rcdev.ops = &imx_hdmimix_reset_ops; d4b6fb2adc1967 Sandor Yu 2020-01-19 145 drvdata->rcdev.of_node = dev->of_node; d4b6fb2adc1967 Sandor Yu 2020-01-19 146 drvdata->rcdev.dev = dev; d4b6fb2adc1967 Sandor Yu 2020-01-19 147 d4b6fb2adc1967 Sandor Yu 2020-01-19 148 return devm_reset_controller_register(dev, &drvdata->rcdev); d4b6fb2adc1967 Sandor Yu 2020-01-19 149 } d4b6fb2adc1967 Sandor Yu 2020-01-19 150 :::::: The code at line 134 was first introduced by commit :::::: d4b6fb2adc19675a36d44b5ee0ebe4b5c93fef63 MLK-23250-06: reset: Add hdmimix reset driver :::::: TO: Sandor Yu <Sandor.yu(a)nxp.com&gt; :::::: CC: Sandor Yu <Sandor.yu(a)nxp.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org