Hi Jaghathiswari, [auto build test WARNING on hwmon/hwmon-next] [also build test WARNING on v4.10-rc5 next-20170120] [cannot apply to linux/master] [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/Jaghathiswari-Rankappagounder-Natarajan/Support-for-ASPEED-AST2400-AST2500-PWM-and-Fan-Tach-driver/20170110-093628 base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next config: i386-randconfig-i1-01230650 (attached as .config) compiler: gcc-4.8 (Debian 4.8.4-1) 4.8.4 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): drivers/hwmon/aspeed-pwm-tacho.c: In function 'aspeed_create_type': >> drivers/hwmon/aspeed-pwm-tacho.c:656:41: warning: 'div_h' is used uninitialized in this function [-Wuninitialized] priv->type_pwm_clock_division_h[index] = div_h; ^ vim +/div_h +656 drivers/hwmon/aspeed-pwm-tacho.c 640 * The PWM frequency = 24MHz / (type M clock division L bit * 641 * type M clock division H bit * (type M PWM period bit + 1)) 642 * Calculate type M clock division L bit and H bits given the other values 643 */ 644 static int aspeed_create_type(struct device_node *child, 645 struct aspeed_pwm_tacho_data *priv, 646 u8 index) 647 { 648 u8 period, div_l, div_h; 649 bool enable; 650 u8 mode, div; 651 u16 unit; 652 653 of_property_read_u8(child, "pwm_period", &period); 654 of_property_read_u8(child, "pwm_clock_division_h", &div_h); 655 of_property_read_u8(child, "pwm_clock_division_l", &div_l); > 656 priv->type_pwm_clock_division_h[index] = div_h; 657 priv->type_pwm_clock_division_l[index] = div_l; 658 priv->type_pwm_clock_unit[index] = period; 659 aspeed_set_pwm_clock_values(priv->base, index, div_h, div_l, period); 660 661 enable = of_property_read_bool(child, "fan_tach_enable"); 662 aspeed_set_tacho_type_enable(priv->base, index, enable); 663 664 of_property_read_u8(child, "fan_tach_clock_division", &div); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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