Re: [PATCH V1 2/2] pwm: pwm-qti-lpg: Add PWM driver for QTI LPG module

[kbuild test robot]

Hi Fenglin,

[auto build test ERROR on j.anaszewski-leds/for-next]
[also build test ERROR on v4.12-rc3 next-20170602]
[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/fenglinw-codeaurora-org/leds-leds-qti-rgb-Add-LED-driver-for-QTI-TRI_LED-module/20170531-153634
base:   https://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds.git for-next
config: m68k-allyesconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 4.9.0
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=m68k 

All errors (new ones prefixed by >>):

   drivers/pwm/pwm-qti-lpg.c: In function 'qti_lpg_pwm_dbg_show':
>> drivers/pwm/pwm-qti-lpg.c:428:4: error: implicit declaration of function 'seq_printf' [-Werror=implicit-function-declaration]
       seq_printf(s, "LPG %d is requested by %s\n",
       ^
>> drivers/pwm/pwm-qti-lpg.c:437:4: error: implicit declaration of function 'seq_puts' [-Werror=implicit-function-declaration]
       seq_puts(s, "  enabled\n");
       ^
   cc1: some warnings being treated as errors

vim +/seq_printf +428 drivers/pwm/pwm-qti-lpg.c

   422			if (lpg == NULL) {
   423				dev_err(pwm_chip->dev, "lpg not found\n");
   424				return;
   425			}
   426	
   427			if (test_bit(PWMF_REQUESTED, &pwm->flags)) {
 > 428				seq_printf(s, "LPG %d is requested by %s\n",
   429						lpg->lpg_idx + 1, pwm->label);
   430			} else {
   431				seq_printf(s, "LPG %d is free\n",
   432						lpg->lpg_idx + 1);
   433				continue;
   434			}
   435	
   436			if (pwm_is_enabled(pwm)) {
 > 437				seq_puts(s, "  enabled\n");
   438			} else {
   439				seq_puts(s, "  disabled\n");
   440				continue;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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