Hi Jim, kernel test robot noticed the following build warnings: [auto build test WARNING on brgl/gpio/for-next] [also build test WARNING on robh/for-next linus/master v6.7-rc4 next-20231206] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Jim-Liu/dt-bindings-gpio-add-NPCM-sgpio-driver-bindings/20231206-095724 base: https://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git gpio/for-next patch link: https://lore.kernel.org/r/20231206014530.1600151-4-jim.t90615%40gmail.com patch subject: [PATCH v8 3/3] gpio: nuvoton: Add Nuvoton NPCM sgpio driver config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20231206/202312062043.9nNc7GIZ-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231206/202312062043.9nNc7GIZ-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202312062043.9nNc7GIZ-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from arch/alpha/include/asm/bug.h:23, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/current.h:6, from ./arch/alpha/include/generated/asm/current.h:1, from include/linux/mutex.h:14, from include/linux/notifier.h:14, from include/linux/clk.h:14, from drivers/gpio/gpio-npcm-sgpio.c:9: drivers/gpio/gpio-npcm-sgpio.c: In function 'bank_reg': >> drivers/gpio/gpio-npcm-sgpio.c:150:26: warning: passing argument 1 of 'dev_driver_string' makes pointer from integer without a cast [-Wint-conversion] 150 | dev_WARN(true, "Getting here is an error condition"); | ^~~~ | | | int include/asm-generic/bug.h:99:62: note: in definition of macro '__WARN_printf' 99 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ | ^~~ include/linux/dev_printk.h:271:9: note: in expansion of macro 'WARN' 271 | WARN(1, "%s %s: " format, dev_driver_string(dev), dev_name(dev), ## arg) | ^~~~ drivers/gpio/gpio-npcm-sgpio.c:150:17: note: in expansion of macro 'dev_WARN' 150 | dev_WARN(true, "Getting here is an error condition"); | ^~~~~~~~ In file included from include/linux/platform_device.h:13, from drivers/gpio/gpio-npcm-sgpio.c:16: include/linux/device.h:1242:52: note: expected 'const struct device *' but argument is of type 'int' 1242 | const char *dev_driver_string(const struct device *dev); | ~~~~~~~~~~~~~~~~~~~~~^~~ >> drivers/gpio/gpio-npcm-sgpio.c:150:26: warning: passing argument 1 of 'dev_name' makes pointer from integer without a cast [-Wint-conversion] 150 | dev_WARN(true, "Getting here is an error condition"); | ^~~~ | | | int include/asm-generic/bug.h:99:62: note: in definition of macro '__WARN_printf' 99 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ | ^~~ include/linux/dev_printk.h:271:9: note: in expansion of macro 'WARN' 271 | WARN(1, "%s %s: " format, dev_driver_string(dev), dev_name(dev), ## arg) | ^~~~ drivers/gpio/gpio-npcm-sgpio.c:150:17: note: in expansion of macro 'dev_WARN' 150 | dev_WARN(true, "Getting here is an error condition"); | ^~~~~~~~ include/linux/device.h:858:57: note: expected 'const struct device *' but argument is of type 'int' 858 | static inline const char *dev_name(const struct device *dev) | ~~~~~~~~~~~~~~~~~~~~~^~~ drivers/gpio/gpio-npcm-sgpio.c: In function 'npcm_sgpio_dir_out': >> drivers/gpio/gpio-npcm-sgpio.c:211:28: warning: unused variable 'gpio' [-Wunused-variable] 211 | struct npcm_sgpio *gpio = gpiochip_get_data(gc); | ^~~~ drivers/gpio/gpio-npcm-sgpio.c: At top level: >> drivers/gpio/gpio-npcm-sgpio.c:534:20: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 534 | .sft_clk = npcm750_SFT_CLK, | ^~~~~~~~~~~~~~~ drivers/gpio/gpio-npcm-sgpio.c:535:20: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 535 | .clk_sel = npcm750_CLK_SEL, | ^~~~~~~~~~~~~~~ drivers/gpio/gpio-npcm-sgpio.c:540:20: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 540 | .sft_clk = npcm845_SFT_CLK, | ^~~~~~~~~~~~~~~ drivers/gpio/gpio-npcm-sgpio.c:541:20: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 541 | .clk_sel = npcm845_CLK_SEL, | ^~~~~~~~~~~~~~~ vim +/dev_driver_string +150 drivers/gpio/gpio-npcm-sgpio.c 134 135 static void __iomem *bank_reg(struct npcm_sgpio *gpio, 136 const struct npcm_sgpio_bank *bank, 137 const enum npcm_sgpio_reg reg) 138 { 139 switch (reg) { 140 case READ_DATA: 141 return gpio->base + bank->rdata_reg; 142 case WRITE_DATA: 143 return gpio->base + bank->wdata_reg; 144 case EVENT_CFG: 145 return gpio->base + bank->event_config; 146 case EVENT_STS: 147 return gpio->base + bank->event_status; 148 default: 149 /* actually if code runs to here, it's an error case */ > 150 dev_WARN(true, "Getting here is an error condition"); 151 } 152 return 0; 153 } 154 155 static const struct npcm_sgpio_bank *offset_to_bank(unsigned int offset) 156 { 157 unsigned int bank = GPIO_BANK(offset); 158 159 return &npcm_sgpio_banks[bank]; 160 } 161 162 static void irqd_to_npcm_sgpio_data(struct irq_data *d, 163 struct npcm_sgpio **gpio, 164 const struct npcm_sgpio_bank **bank, 165 u8 *bit, unsigned int *offset) 166 { 167 struct npcm_sgpio *internal; 168 169 *offset = irqd_to_hwirq(d); 170 internal = irq_data_get_irq_chip_data(d); 171 172 *gpio = internal; 173 *offset -= internal->nout_sgpio; 174 *bank = offset_to_bank(*offset); 175 *bit = GPIO_BIT(*offset); 176 } 177 178 static int npcm_sgpio_init_port(struct npcm_sgpio *gpio) 179 { 180 u8 in_port, out_port, set_port, reg; 181 182 in_port = GPIO_BANK(gpio->nin_sgpio); 183 if (GPIO_BIT(gpio->nin_sgpio) > 0) 184 in_port += 1; 185 186 out_port = GPIO_BANK(gpio->nout_sgpio); 187 if (GPIO_BIT(gpio->nout_sgpio) > 0) 188 out_port += 1; 189 190 gpio->in_port = in_port; 191 gpio->out_port = out_port; 192 set_port = ((out_port & NPCM_IOXCFG2_PORT) << 4) | (in_port & NPCM_IOXCFG2_PORT); 193 iowrite8(set_port, gpio->base + NPCM_IOXCFG2); 194 195 reg = ioread8(gpio->base + NPCM_IOXCFG2); 196 197 return reg == set_port ? 0 : -EINVAL; 198 199 } 200 201 static int npcm_sgpio_dir_in(struct gpio_chip *gc, unsigned int offset) 202 { 203 struct npcm_sgpio *gpio = gpiochip_get_data(gc); 204 205 return offset < gpio->nout_sgpio ? -EINVAL : 0; 206 207 } 208 209 static int npcm_sgpio_dir_out(struct gpio_chip *gc, unsigned int offset, int val) 210 { > 211 struct npcm_sgpio *gpio = gpiochip_get_data(gc); 212 213 gc->set(gc, offset, val); 214 215 return 0; 216 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
