Messages in this thread | | | Date | Tue, 21 Feb 2017 00:36:14 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH] gpio: aspeed: Add debounce support |
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Hi Andrew,
[auto build test WARNING on next-20170220] [cannot apply to gpio/for-next v4.9-rc8 v4.9-rc7 v4.9-rc6 v4.10] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Andrew-Jeffery/gpio-aspeed-Add-debounce-support/20170220-231310 config: i386-allmodconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386
Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings
All warnings (new ones prefixed by >>):
drivers/gpio/gpio-aspeed.c: In function 'aspeed_gpio_set_config': >> drivers/gpio/gpio-aspeed.c:733:9: warning: 'rc' may be used uninitialized in this function [-Wmaybe-uninitialized] return rc; ^~
vim +/rc +733 drivers/gpio/gpio-aspeed.c
717 switch (param) { 718 case PIN_CONFIG_INPUT_DEBOUNCE: 719 rc = aspeed_gpio_set_debounce(chip, offset, arg); 720 break; 721 case PIN_CONFIG_BIAS_DISABLE: 722 case PIN_CONFIG_BIAS_PULL_DOWN: 723 case PIN_CONFIG_DRIVE_STRENGTH: 724 rc = pinctrl_gpio_set_config(offset, config); 725 break; 726 case PIN_CONFIG_DRIVE_OPEN_DRAIN: 727 case PIN_CONFIG_DRIVE_OPEN_SOURCE: 728 /* Fallthrough for emulation, as per datasheet */ 729 default: 730 rc = -ENOTSUPP; 731 } 732 > 733 return rc; 734 } 735 736 /* 737 * Any banks not specified in a struct aspeed_bank_props array are assumed to 738 * have the properties: 739 * 740 * { .input = 0xffffffff, .output = 0xffffffff } 741 */
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