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Date: Sat, 2 Jan 2016 10:08:08 +0800
From: kbuild test robot <lkp@...el.com>
To: Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>
Cc: kbuild-all@...org, linuxppc-dev@...abs.org,
linux-kernel@...r.kernel.org, rjw@...ysocki.net,
viresh.kumar@...aro.org, linux-pm@...r.kernel.org, pc@...ibm.com,
Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>
Subject: Re: [PATCH v2 2/2] cpufreq: powernv: Redesign the presentation of
throttle notification
Hi Shilpasri,
[auto build test WARNING on tip/perf/core]
[also build test WARNING on v4.4-rc7 next-20151231]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
url: https://github.com/0day-ci/linux/commits/Shilpasri-G-Bhat/cpufreq-powernv-tracing-Add-powernv_throttle-tracepoint/20160102-062606
config: powerpc-allmodconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=powerpc
All warnings (new ones prefixed by >>):
drivers/cpufreq/powernv-cpufreq.c: In function 'occ_reset_show':
drivers/cpufreq/powernv-cpufreq.c:609:2: warning: ignoring return value of 'kstrtoint', declared with attribute warn_unused_result [-Wunused-result]
kstrtoint(kobj->name + 4, 0, &id); \
^
>> drivers/cpufreq/powernv-cpufreq.c:625:1: note: in expansion of macro 'define_throttle_reason_attr'
define_throttle_reason_attr(occ_reset, OCC_RESET_THROTTLE);
^
drivers/cpufreq/powernv-cpufreq.c: In function 'over_current_show':
drivers/cpufreq/powernv-cpufreq.c:609:2: warning: ignoring return value of 'kstrtoint', declared with attribute warn_unused_result [-Wunused-result]
kstrtoint(kobj->name + 4, 0, &id); \
^
drivers/cpufreq/powernv-cpufreq.c:624:1: note: in expansion of macro 'define_throttle_reason_attr'
define_throttle_reason_attr(over_current, OVERCURRENT);
^
drivers/cpufreq/powernv-cpufreq.c: In function 'power_supply_failure_show':
drivers/cpufreq/powernv-cpufreq.c:609:2: warning: ignoring return value of 'kstrtoint', declared with attribute warn_unused_result [-Wunused-result]
kstrtoint(kobj->name + 4, 0, &id); \
^
drivers/cpufreq/powernv-cpufreq.c:623:1: note: in expansion of macro 'define_throttle_reason_attr'
define_throttle_reason_attr(power_supply_failure, POWER_SUPPLY_FAILURE);
^
drivers/cpufreq/powernv-cpufreq.c: In function 'cpu_over_temperature_show':
drivers/cpufreq/powernv-cpufreq.c:609:2: warning: ignoring return value of 'kstrtoint', declared with attribute warn_unused_result [-Wunused-result]
kstrtoint(kobj->name + 4, 0, &id); \
^
drivers/cpufreq/powernv-cpufreq.c:622:1: note: in expansion of macro 'define_throttle_reason_attr'
define_throttle_reason_attr(cpu_over_temperature, CPU_OVERTEMP);
^
drivers/cpufreq/powernv-cpufreq.c: In function 'power_cap_show':
drivers/cpufreq/powernv-cpufreq.c:609:2: warning: ignoring return value of 'kstrtoint', declared with attribute warn_unused_result [-Wunused-result]
kstrtoint(kobj->name + 4, 0, &id); \
^
drivers/cpufreq/powernv-cpufreq.c:621:1: note: in expansion of macro 'define_throttle_reason_attr'
define_throttle_reason_attr(power_cap, POWERCAP);
^
drivers/cpufreq/powernv-cpufreq.c: In function 'throttle_reset_show':
drivers/cpufreq/powernv-cpufreq.c:609:2: warning: ignoring return value of 'kstrtoint', declared with attribute warn_unused_result [-Wunused-result]
kstrtoint(kobj->name + 4, 0, &id); \
^
drivers/cpufreq/powernv-cpufreq.c:620:1: note: in expansion of macro 'define_throttle_reason_attr'
define_throttle_reason_attr(throttle_reset, NO_THROTTLE);
^
drivers/cpufreq/powernv-cpufreq.c: In function 'throttle_stat_show':
drivers/cpufreq/powernv-cpufreq.c:589:2: warning: ignoring return value of 'kstrtoint', declared with attribute warn_unused_result [-Wunused-result]
kstrtoint(kobj->name + 4, 0, &id);
^
drivers/cpufreq/powernv-cpufreq.c: In function 'throttle_freq_show':
drivers/cpufreq/powernv-cpufreq.c:568:2: warning: ignoring return value of 'kstrtoint', declared with attribute warn_unused_result [-Wunused-result]
kstrtoint(kobj->name + 4, 0, &id);
^
vim +/define_throttle_reason_attr +625 drivers/cpufreq/powernv-cpufreq.c
603 #define define_throttle_reason_attr(attr_name, val) \
604 static ssize_t attr_name##_show(struct kobject *kobj, \
605 struct kobj_attribute *attr, char *buf) \
606 { \
607 int i, id; \
608 \
> 609 kstrtoint(kobj->name + 4, 0, &id); \
610 for (i = 0; i < nr_chips; i++) \
611 if (chips[i].id == id) \
612 break; \
613 \
614 return sprintf(buf, "%d\n", chips[i].reason[val]); \
615 } \
616 \
617 static struct kobj_attribute attr_##attr_name = \
618 __ATTR(attr_name, 0444, attr_name##_show, NULL)
619
620 define_throttle_reason_attr(throttle_reset, NO_THROTTLE);
621 define_throttle_reason_attr(power_cap, POWERCAP);
622 define_throttle_reason_attr(cpu_over_temperature, CPU_OVERTEMP);
623 define_throttle_reason_attr(power_supply_failure, POWER_SUPPLY_FAILURE);
624 define_throttle_reason_attr(over_current, OVERCURRENT);
> 625 define_throttle_reason_attr(occ_reset, OCC_RESET_THROTTLE);
626
627 static struct attribute *throttle_reason_attrs[] = {
628 &attr_throttle_reset.attr,
---
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