Hi William, I love your patch! Yet something to improve: [auto build test ERROR on gpio/for-next] [cannot apply to v5.4-rc1 next-20191004] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/William-Breathitt-Gray/Introduce-the-for_each_set_clump8-macro/20191006-032112 base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next config: x86_64-randconfig-s0-201940 (attached as .config) compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/gpio/gpio-max3191x.c: In function 'max3191x_get_multiple': >> drivers/gpio/gpio-max3191x.c:258:31: error: 'offset' undeclared (first use in this function) bitmap_set_value8(bits, in, offset); ^~~~~~ drivers/gpio/gpio-max3191x.c:258:31: note: each undeclared identifier is reported only once for each function it appears in vim +/offset +258 drivers/gpio/gpio-max3191x.c 231 232 static int max3191x_get_multiple(struct gpio_chip *gpio, unsigned long *mask, 233 unsigned long *bits) 234 { 235 struct max3191x_chip *max3191x = gpiochip_get_data(gpio); 236 const unsigned int wordlen = max3191x_wordlen(max3191x); 237 int ret; 238 unsigned long bit; 239 unsigned long gpio_mask; 240 unsigned long in; 241 242 mutex_lock(&max3191x->lock); 243 ret = max3191x_readout_locked(max3191x); 244 if (ret) 245 goto out_unlock; 246 247 bitmap_zero(bits, gpio->ngpio); 248 for_each_set_clump8(bit, gpio_mask, mask, gpio->ngpio) { 249 unsigned int chipnum = bit / MAX3191X_NGPIO; 250 251 if (max3191x_chip_is_faulting(max3191x, chipnum)) { 252 ret = -EIO; 253 goto out_unlock; 254 } 255 256 in = ((u8 *)max3191x->xfer.rx_buf)[chipnum * wordlen]; 257 in &= gpio_mask; > 258 bitmap_set_value8(bits, in, offset); 259 } 260 261 out_unlock: 262 mutex_unlock(&max3191x->lock); 263 return ret; 264 } 265 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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