Hi Hans, I love your patch! Yet something to improve: [auto build test ERROR on lee-mfd/for-mfd-next] [also build test ERROR on chanwoo-extcon/extcon-next asoc/for-next v5.11-rc1 next-20201223] [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/Hans-de-Goede/MFD-extcon-ASoC-Add-support-for-Intel-Bay-Trail-boards-with-WM5102-codec/20201228-051806 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next config: s390-randconfig-r034-20201228 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45) 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 # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/0day-ci/linux/commit/bc64046ad088b340f127f9eefdb8f941c03dcb53 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Hans-de-Goede/MFD-extcon-ASoC-Add-support-for-Intel-Bay-Trail-boards-with-WM5102-codec/20201228-051806 git checkout bc64046ad088b340f127f9eefdb8f941c03dcb53 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): include/uapi/linux/swab.h:19:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \ ^ In file included from drivers/mfd/arizona-spi.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32' ___constant_swab32(x) : \ ^ include/uapi/linux/swab.h:20:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \ ^ In file included from drivers/mfd/arizona-spi.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32' ___constant_swab32(x) : \ ^ include/uapi/linux/swab.h:21:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \ ^ In file included from drivers/mfd/arizona-spi.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32' ___constant_swab32(x) : \ ^ include/uapi/linux/swab.h:22:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0xff000000UL) >> 24))) ^ In file included from drivers/mfd/arizona-spi.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:120:12: note: expanded from macro '__swab32' __fswab32(x)) ^ In file included from drivers/mfd/arizona-spi.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:80: include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ >> drivers/mfd/arizona-spi.c:192:7: error: assigning to 'int' from incompatible type 'void' ret = arizona_spi_acpi_probe(arizona); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 20 warnings and 1 error generated. vim +192 drivers/mfd/arizona-spi.c 133 134 static int arizona_spi_probe(struct spi_device *spi) 135 { 136 const struct spi_device_id *id = spi_get_device_id(spi); 137 struct arizona *arizona; 138 const struct regmap_config *regmap_config = NULL; 139 unsigned long type; 140 int ret; 141 142 if (spi->dev.of_node) 143 type = arizona_of_get_type(&spi->dev); 144 else if (ACPI_COMPANION(&spi->dev)) 145 type = (unsigned long)acpi_device_get_match_data(&spi->dev); 146 else 147 type = id->driver_data; 148 149 switch (type) { 150 case WM5102: 151 if (IS_ENABLED(CONFIG_MFD_WM5102)) 152 regmap_config = &wm5102_spi_regmap; 153 break; 154 case WM5110: 155 case WM8280: 156 if (IS_ENABLED(CONFIG_MFD_WM5110)) 157 regmap_config = &wm5110_spi_regmap; 158 break; 159 case WM1831: 160 case CS47L24: 161 if (IS_ENABLED(CONFIG_MFD_CS47L24)) 162 regmap_config = &cs47l24_spi_regmap; 163 break; 164 default: 165 dev_err(&spi->dev, "Unknown device type %ld\n", type); 166 return -EINVAL; 167 } 168 169 if (!regmap_config) { 170 dev_err(&spi->dev, 171 "No kernel support for device type %ld\n", type); 172 return -EINVAL; 173 } 174 175 arizona = devm_kzalloc(&spi->dev, sizeof(*arizona), GFP_KERNEL); 176 if (arizona == NULL) 177 return -ENOMEM; 178 179 arizona->regmap = devm_regmap_init_spi(spi, regmap_config); 180 if (IS_ERR(arizona->regmap)) { 181 ret = PTR_ERR(arizona->regmap); 182 dev_err(&spi->dev, "Failed to allocate register map: %d\n", 183 ret); 184 return ret; 185 } 186 187 arizona->type = type; 188 arizona->dev = &spi->dev; 189 arizona->irq = spi->irq; 190 191 if (ACPI_COMPANION(&spi->dev)) { > 192 ret = arizona_spi_acpi_probe(arizona); 193 if (ret) 194 return ret; 195 } 196 197 return arizona_dev_init(arizona); 198 } 199 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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