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Date: Fri, 20 Jan 2017 10:15:54 +0800
From: kbuild test robot <lkp@...el.com>
To: Elaine Zhang <zhangqing@...k-chips.com>
Cc: kbuild-all@...org, xf@...k-chips.com, heiko@...ech.de,
rjw@...ysocki.net, khilman@...nel.org, ulf.hansson@...aro.org,
pavel@....cz, len.brown@...el.com, gregkh@...uxfoundation.org,
linux-pm@...r.kernel.org, huangtao@...k-chips.com,
xxx@...k-chips.com, wxt@...k-chips.com,
linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
Elaine Zhang <zhangqing@...k-chips.com>
Subject: Re: [PATCH v1] PM / Domains: Keep the pd status during system PM
phases
Hi Elaine,
[auto build test WARNING on pm/linux-next]
[also build test WARNING on v4.10-rc4 next-20170119]
[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/Elaine-Zhang/PM-Domains-Keep-the-pd-status-during-system-PM-phases/20170120-091738
base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: x86_64-randconfig-x016-201703 (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=x86_64
All warnings (new ones prefixed by >>):
In file included from include/linux/linkage.h:4:0,
from include/linux/kernel.h:6,
from include/linux/delay.h:10,
from drivers/base/power/domain.c:9:
drivers/base/power/domain.c: In function 'pm_genpd_suspend_noirq':
drivers/base/power/domain.c:885:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:149:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/base/power/domain.c:884:2: note: in expansion of macro 'if'
if (genpd->suspend_power_off ||
^~
drivers/base/power/domain.c:885:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:149:42: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
>> drivers/base/power/domain.c:884:2: note: in expansion of macro 'if'
if (genpd->suspend_power_off ||
^~
drivers/base/power/domain.c:885:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:160:16: note: in definition of macro '__trace_if'
______r = !!(cond); \
^~~~
>> drivers/base/power/domain.c:884:2: note: in expansion of macro 'if'
if (genpd->suspend_power_off ||
^~
drivers/base/power/domain.c: In function 'pm_genpd_resume_noirq':
drivers/base/power/domain.c:923:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:149:30: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
drivers/base/power/domain.c:922:2: note: in expansion of macro 'if'
if (genpd->suspend_power_off ||
^~
drivers/base/power/domain.c:923:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:149:42: note: in definition of macro '__trace_if'
if (__builtin_constant_p(!!(cond)) ? !!(cond) : \
^~~~
drivers/base/power/domain.c:922:2: note: in expansion of macro 'if'
if (genpd->suspend_power_off ||
^~
drivers/base/power/domain.c:923:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:160:16: note: in definition of macro '__trace_if'
______r = !!(cond); \
^~~~
drivers/base/power/domain.c:922:2: note: in expansion of macro 'if'
if (genpd->suspend_power_off ||
^~
vim +/if +884 drivers/base/power/domain.c
868 * @dev: Device to suspend.
869 *
870 * Stop the device and remove power from the domain if all devices in it have
871 * been stopped.
872 */
873 static int pm_genpd_suspend_noirq(struct device *dev)
874 {
875 struct generic_pm_domain *genpd;
876 int ret;
877
878 dev_dbg(dev, "%s()\n", __func__);
879
880 genpd = dev_to_genpd(dev);
881 if (IS_ERR(genpd))
882 return -EINVAL;
883
> 884 if (genpd->suspend_power_off ||
885 dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
886 return 0;
887
888 if (genpd->dev_ops.stop && genpd->dev_ops.start) {
889 ret = pm_runtime_force_suspend(dev);
890 if (ret)
891 return ret;
892 }
---
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