Hi Jean-Jacques, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on j.anaszewski-leds/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/Jean-Jacques-Hiblot/leds-Add-control-of-the-voltage-current-regulator-to-the-LED-core/20191005-062631 base: https://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds.git for-next config: sparc-allyesconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=sparc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/leds/led-core.c: In function 'try_turn_on_regulator_if_needed': >> drivers/leds/led-core.c:65:15: warning: overflow in implicit constant conversion [-Woverflow] atomic_and(~REG_R_ON, &led_cdev->regulator_state); ^ drivers/leds/led-core.c: In function 'led_set_brightness_nopm': drivers/leds/led-core.c:353:27: warning: overflow in implicit constant conversion [-Woverflow] old = atomic_fetch_and(~REG_U_ON, ^ vim +65 drivers/leds/led-core.c 54 55 static void try_turn_on_regulator_if_needed(struct led_classdev *led_cdev) 56 { 57 int old = atomic_cmpxchg(&led_cdev->regulator_state, REG_R_OFF_U_ON, 58 REG_R_ON_U_ON); 59 if (old == REG_R_OFF_U_ON) { 60 int rc = regulator_enable(led_cdev->regulator); 61 62 if (rc) { 63 dev_err(led_cdev->dev, 64 "Failed to enable the regulator (%d)\n", rc); > 65 atomic_and(~REG_R_ON, &led_cdev->regulator_state); 66 } 67 } 68 } 69 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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