tree: git://github.com/linux-chenxing/linux.git msc313_mainlining head: df6df62e60f3a32773b02a41e0d6a4e0f2b353b5 commit: baf52d9889a05e4a516eb56f326b4e6525dc0fa8 [40/69] pinctrl: mstar: msc313 pinctrl driver config: riscv-randconfig-r013-20211121 (attached as .config) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/linux-chenxing/linux/commit/baf52d9889a05e4a516eb56f32... git remote add chenxing git://github.com/linux-chenxing/linux.git git fetch --no-tags chenxing msc313_mainlining git checkout baf52d9889a05e4a516eb56f326b4e6525dc0fa8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv 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 >>): In file included from drivers/pinctrl/mstar/pinctrl-msc313.c:7: In file included from include/linux/gpio/driver.h:7: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:136: include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:36:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/pinctrl/mstar/pinctrl-msc313.c:7: In file included from include/linux/gpio/driver.h:7: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:136: 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/little_endian.h:34:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/pinctrl/mstar/pinctrl-msc313.c:7: In file included from include/linux/gpio/driver.h:7: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/riscv/include/asm/io.h:136: 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:1024:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; ~~~~~~~~~~ ^ default: ^ drivers/pinctrl/mstar/pinctrl-msc313.c:1339:4: note: insert 'break;' to avoid fall-through default: ^ break; static const char * const i2c0_groups[] = { ^ static const u16 i2c0_values[] = { ^ static const char * const i2c1_groups[] = { ^ static const u16 i2c1_values[] = { ^ static const char * const fuart_groups[] = { ^ static const u16 fuart_values[] = { ^ static const char * const uart0_groups[] = { ^ static const char * const uart1_groups[] = { ^ static const u16 uart1_values[] = { ^ static const char * const usb_groups[] = { ^ static const char * const usb1_groups[] = { ^ static const char * const pwm0_groups[] = { ^ static const u16 pwm0_values[] = { ^ static const char * const pwm1_groups[] = { ^ static const u16 pwm1_values[] = { ^ static const char * const pwm2_groups[] = { ^ static const u16 pwm2_values[] = { ^ static const char * const pwm3_groups[] = { ^ static const u16 pwm3_values[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:108:27: warning: unused variable 'pwm4_groups' [-Wunused-const-variable] static const char * const pwm4_groups[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:111:18: warning: unused variable 'pwm4_values' [-Wunused-const-variable] static const u16 pwm4_values[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:115:27: warning: unused variable 'pwm5_groups' [-Wunused-const-variable] static const char * const pwm5_groups[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:118:18: warning: unused variable 'pwm5_values' [-Wunused-const-variable] static const u16 pwm5_values[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:122:27: warning: unused variable 'pwm6_groups' [-Wunused-const-variable] static const char * const pwm6_groups[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:125:18: warning: unused variable 'pwm6_values' [-Wunused-const-variable] static const u16 pwm6_values[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:129:27: warning: unused variable 'pwm7_groups' [-Wunused-const-variable] static const char * const pwm7_groups[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:132:18: warning: unused variable 'pwm7_values' [-Wunused-const-variable] static const u16 pwm7_values[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:136:27: warning: unused variable 'eth_groups' [-Wunused-const-variable] static const char * const eth_groups[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:139:18: warning: unused variable 'eth_values' [-Wunused-const-variable] static const u16 eth_values[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:143:27: warning: unused variable 'jtag_groups' [-Wunused-const-variable] static const char * const jtag_groups[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:147:27: warning: unused variable 'spi0_groups' [-Wunused-const-variable] static const char * const spi0_groups[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:151:18: warning: unused variable 'spi0_values' [-Wunused-const-variable] static const u16 spi0_values[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:155:27: warning: unused variable 'spi1_groups' [-Wunused-const-variable] static const char * const spi1_groups[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:158:18: warning: unused variable 'spi1_values' [-Wunused-const-variable] static const u16 spi1_values[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:161:27: warning: unused variable 'sdio_groups' [-Wunused-const-variable] static const char * const sdio_groups[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:164:18: warning: unused variable 'sdio_values' [-Wunused-const-variable] static const u16 sdio_values[] = { ^ drivers/pinctrl/mstar/pinctrl-msc313.c:201:27: warning: unused variable 'sd_drivestrengths' [-Wunused-const-variable] static const unsigned int sd_drivestrengths[] = {4, 8}; ^ drivers/pinctrl/mstar/pinctrl-msc313.c:215:27: warning: unused variable 'spi0_drivestrengths' [-Wunused-const-variable] static const unsigned int spi0_drivestrengths[] = {4, 8, 12, 16}; ^ drivers/pinctrl/mstar/pinctrl-msc313.c:225:27: warning: unused variable 'i2c_drivestrengths' [-Wunused-const-variable] static const unsigned int i2c_drivestrengths[] = {4, 8}; ^ drivers/pinctrl/mstar/pinctrl-msc313.c:233:27: warning: unused variable 'sr_drivestrengths' [-Wunused-const-variable] static const unsigned int sr_drivestrengths[] = {4, 8}; ^ 48 warnings generated. vim +1339 drivers/pinctrl/mstar/pinctrl-msc313.c 1318 1319 static int mstar_set_config(struct msc313_pinctrl *pinctrl, int pin, unsigned long config) 1320 { 1321 enum pin_config_param param = pinconf_to_config_param(config); 1322 u32 arg = pinconf_to_config_argument(config); 1323 int i; 1324 unsigned int mask; 1325 const struct msc313_pinctrl_pinconf *confpin; 1326 1327 dev_dbg(pinctrl->dev, "setting %d:%u on pin %d\n", (int)config, (unsigned int)arg, pin); 1328 for (i = 0; i < pinctrl->info->npinconfs; i++) { 1329 if (pinctrl->info->pinconfs[i].pin == pin) { 1330 confpin = &pinctrl->info->pinconfs[i]; 1331 switch (param) { 1332 case PIN_CONFIG_BIAS_PULL_UP: 1333 if (confpin->pull_en_reg != -1) { 1334 dev_dbg(pinctrl->dev, "setting pull up %d on pin %d\n", (int) arg, pin); 1335 mask = 1 << confpin->pull_en_bit; 1336 regmap_update_bits(pinctrl->regmap, confpin->pull_en_reg, mask, arg ? mask : 0); 1337 } else 1338 dev_info(pinctrl->dev, "pullup reg/bit isn't known for pin %d\n", pin); 1340 break; 1341 } 1342 return 0; 1343 } 1344 } 1345 return 0; 1346 } 1347 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org