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 v6.6-rc7 next-20231024] [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/20231024-170835 base: https://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git gpio/for-next patch link: https://lore.kernel.org/r/20231024090631.3359592-4-jim.t90615%40gmail.com patch subject: [PATCH v6 3/3] gpio: nuvoton: Add Nuvoton NPCM sgpio driver config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20231025/202310250031.1SKs6CHt-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231025/202310250031.1SKs6CHt-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/202310250031.1SKs6CHt-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/gpio/gpio-npcm-sgpio.c: In function 'bank_reg': >> drivers/gpio/gpio-npcm-sgpio.c:150:24: warning: returning 'int' from a function with return type 'void *' makes pointer from integer without a cast [-Wint-conversion] 150 | return -EINVAL; | ^ drivers/gpio/gpio-npcm-sgpio.c: In function 'npcm_sgpio_setup_irqs': >> drivers/gpio/gpio-npcm-sgpio.c:506:19: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 506 | irq->chip = &sgpio_irq_chip; | ^ drivers/gpio/gpio-npcm-sgpio.c: In function 'npcm_sgpio_probe': >> drivers/gpio/gpio-npcm-sgpio.c:559:36: warning: unused variable 'sgpio_freq' [-Wunused-variable] 559 | u32 nin_gpios, nout_gpios, sgpio_freq; | ^~~~~~~~~~ vim +150 drivers/gpio/gpio-npcm-sgpio.c 133 134 static void __iomem *bank_reg(struct npcm_sgpio *gpio, 135 const struct npcm_sgpio_bank *bank, 136 const enum npcm_sgpio_reg reg) 137 { 138 switch (reg) { 139 case READ_DATA: 140 return gpio->base + bank->rdata_reg; 141 case WRITE_DATA: 142 return gpio->base + bank->wdata_reg; 143 case EVENT_CFG: 144 return gpio->base + bank->event_config; 145 case EVENT_STS: 146 return gpio->base + bank->event_status; 147 default: 148 /* actually if code runs to here, it's an error case */ 149 WARN(true, "Getting here is an error condition"); > 150 return -EINVAL; 151 } 152 } 153 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
