2021-06-11 13:08:48

by Yue Haibing

[permalink] [raw]
Subject: [PATCH -next] scsi: ufs: fix build warning without CONFIG_PM

drivers/scsi/ufs/ufshcd.c:9770:12: warning: ‘ufshcd_rpmb_resume’ defined but not used [-Wunused-function]
static int ufshcd_rpmb_resume(struct device *dev)
^~~~~~~~~~~~~~~~~~
drivers/scsi/ufs/ufshcd.c:9037:12: warning: ‘ufshcd_wl_runtime_resume’ defined but not used [-Wunused-function]
static int ufshcd_wl_runtime_resume(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ufs/ufshcd.c:9017:12: warning: ‘ufshcd_wl_runtime_suspend’ defined but not used [-Wunused-function]
static int ufshcd_wl_runtime_suspend(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~~

Move it into #ifdef block to fix this.

Signed-off-by: YueHaibing <[email protected]>
---
drivers/scsi/ufs/ufshcd.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b87ff68aa9aa..0c54589e186a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8926,6 +8926,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
return ret;
}

+#ifdef CONFIG_PM_SLEEP
static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
{
int ret;
@@ -9053,7 +9054,6 @@ static int ufshcd_wl_runtime_resume(struct device *dev)
return ret;
}

-#ifdef CONFIG_PM_SLEEP
static int ufshcd_wl_suspend(struct device *dev)
{
struct scsi_device *sdev = to_scsi_device(dev);
@@ -9766,6 +9766,7 @@ static inline int ufshcd_clear_rpmb_uac(struct ufs_hba *hba)
return ret;
}

+#ifdef CONFIG_PM_SLEEP
static int ufshcd_rpmb_resume(struct device *dev)
{
struct ufs_hba *hba = wlun_dev_to_hba(dev);
@@ -9774,6 +9775,7 @@ static int ufshcd_rpmb_resume(struct device *dev)
ufshcd_clear_rpmb_uac(hba);
return 0;
}
+#endif

static const struct dev_pm_ops ufs_rpmb_pm_ops = {
SET_RUNTIME_PM_OPS(NULL, ufshcd_rpmb_resume, NULL)
--
2.17.1


2021-06-16 22:53:22

by kernel test robot

[permalink] [raw]
Subject: Re: [PATCH -next] scsi: ufs: fix build warning without CONFIG_PM

Hi YueHaibing,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20210615]

url: https://github.com/0day-ci/linux/commits/YueHaibing/scsi-ufs-fix-build-warning-without-CONFIG_PM/20210616-183217
base: 19ae1f2bd9c091059f80646604ccef8a1e614f57
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/6874b79b80a6d8905fe434342e4233b23c3b2104
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review YueHaibing/scsi-ufs-fix-build-warning-without-CONFIG_PM/20210616-183217
git checkout 6874b79b80a6d8905fe434342e4233b23c3b2104
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All errors (new ones prefixed by >>):

In file included from include/linux/device.h:25,
from include/linux/async.h:14,
from drivers/scsi/ufs/ufshcd.c:12:
>> drivers/scsi/ufs/ufshcd.c:9728:21: error: 'ufshcd_wl_runtime_suspend' undeclared here (not in a function); did you mean 'ufshcd_runtime_suspend'?
9728 | SET_RUNTIME_PM_OPS(ufshcd_wl_runtime_suspend, ufshcd_wl_runtime_resume, NULL)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pm.h:341:21: note: in definition of macro 'SET_RUNTIME_PM_OPS'
341 | .runtime_suspend = suspend_fn, \
| ^~~~~~~~~~
>> drivers/scsi/ufs/ufshcd.c:9728:48: error: 'ufshcd_wl_runtime_resume' undeclared here (not in a function); did you mean 'ufshcd_runtime_resume'?
9728 | SET_RUNTIME_PM_OPS(ufshcd_wl_runtime_suspend, ufshcd_wl_runtime_resume, NULL)
| ^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pm.h:342:20: note: in definition of macro 'SET_RUNTIME_PM_OPS'
342 | .runtime_resume = resume_fn, \
| ^~~~~~~~~
>> drivers/scsi/ufs/ufshcd.c:9781:27: error: 'ufshcd_rpmb_resume' undeclared here (not in a function); did you mean 'ufshcd_vops_resume'?
9781 | SET_RUNTIME_PM_OPS(NULL, ufshcd_rpmb_resume, NULL)
| ^~~~~~~~~~~~~~~~~~
include/linux/pm.h:342:20: note: in definition of macro 'SET_RUNTIME_PM_OPS'
342 | .runtime_resume = resume_fn, \
| ^~~~~~~~~
In file included from include/linux/perf_event.h:25,
from include/linux/trace_events.h:10,
from include/trace/trace_events.h:21,
from include/trace/define_trace.h:102,
from include/trace/events/ufs.h:396,
from drivers/scsi/ufs/ufshcd.c:31:
arch/arc/include/asm/perf_event.h:126:23: warning: 'arc_pmu_cache_map' defined but not used [-Wunused-const-variable=]
126 | static const unsigned arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
| ^~~~~~~~~~~~~~~~~
arch/arc/include/asm/perf_event.h:91:27: warning: 'arc_pmu_ev_hw_map' defined but not used [-Wunused-const-variable=]
91 | static const char * const arc_pmu_ev_hw_map[] = {
| ^~~~~~~~~~~~~~~~~


vim +9728 drivers/scsi/ufs/ufshcd.c

b294ff3e34490f Asutosh Das 2021-04-23 9718
b294ff3e34490f Asutosh Das 2021-04-23 9719 static const struct dev_pm_ops ufshcd_wl_pm_ops = {
b294ff3e34490f Asutosh Das 2021-04-23 9720 #ifdef CONFIG_PM_SLEEP
b294ff3e34490f Asutosh Das 2021-04-23 9721 .suspend = ufshcd_wl_suspend,
b294ff3e34490f Asutosh Das 2021-04-23 9722 .resume = ufshcd_wl_resume,
b294ff3e34490f Asutosh Das 2021-04-23 9723 .freeze = ufshcd_wl_suspend,
b294ff3e34490f Asutosh Das 2021-04-23 9724 .thaw = ufshcd_wl_resume,
b294ff3e34490f Asutosh Das 2021-04-23 9725 .poweroff = ufshcd_wl_poweroff,
b294ff3e34490f Asutosh Das 2021-04-23 9726 .restore = ufshcd_wl_resume,
b294ff3e34490f Asutosh Das 2021-04-23 9727 #endif
b294ff3e34490f Asutosh Das 2021-04-23 @9728 SET_RUNTIME_PM_OPS(ufshcd_wl_runtime_suspend, ufshcd_wl_runtime_resume, NULL)
b294ff3e34490f Asutosh Das 2021-04-23 9729 };
b294ff3e34490f Asutosh Das 2021-04-23 9730
b294ff3e34490f Asutosh Das 2021-04-23 9731 /*
b294ff3e34490f Asutosh Das 2021-04-23 9732 * ufs_dev_wlun_template - describes ufs device wlun
b294ff3e34490f Asutosh Das 2021-04-23 9733 * ufs-device wlun - used to send pm commands
b294ff3e34490f Asutosh Das 2021-04-23 9734 * All luns are consumers of ufs-device wlun.
b294ff3e34490f Asutosh Das 2021-04-23 9735 *
b294ff3e34490f Asutosh Das 2021-04-23 9736 * Currently, no sd driver is present for wluns.
b294ff3e34490f Asutosh Das 2021-04-23 9737 * Hence the no specific pm operations are performed.
b294ff3e34490f Asutosh Das 2021-04-23 9738 * With ufs design, SSU should be sent to ufs-device wlun.
b294ff3e34490f Asutosh Das 2021-04-23 9739 * Hence register a scsi driver for ufs wluns only.
b294ff3e34490f Asutosh Das 2021-04-23 9740 */
b294ff3e34490f Asutosh Das 2021-04-23 9741 static struct scsi_driver ufs_dev_wlun_template = {
b294ff3e34490f Asutosh Das 2021-04-23 9742 .gendrv = {
b294ff3e34490f Asutosh Das 2021-04-23 9743 .name = "ufs_device_wlun",
b294ff3e34490f Asutosh Das 2021-04-23 9744 .owner = THIS_MODULE,
b294ff3e34490f Asutosh Das 2021-04-23 9745 .probe = ufshcd_wl_probe,
b294ff3e34490f Asutosh Das 2021-04-23 9746 .remove = ufshcd_wl_remove,
b294ff3e34490f Asutosh Das 2021-04-23 9747 .pm = &ufshcd_wl_pm_ops,
b294ff3e34490f Asutosh Das 2021-04-23 9748 .shutdown = ufshcd_wl_shutdown,
b294ff3e34490f Asutosh Das 2021-04-23 9749 },
b294ff3e34490f Asutosh Das 2021-04-23 9750 };
b294ff3e34490f Asutosh Das 2021-04-23 9751
b294ff3e34490f Asutosh Das 2021-04-23 9752 static int ufshcd_rpmb_probe(struct device *dev)
b294ff3e34490f Asutosh Das 2021-04-23 9753 {
b294ff3e34490f Asutosh Das 2021-04-23 9754 return is_rpmb_wlun(to_scsi_device(dev)) ? 0 : -ENODEV;
b294ff3e34490f Asutosh Das 2021-04-23 9755 }
b294ff3e34490f Asutosh Das 2021-04-23 9756
b294ff3e34490f Asutosh Das 2021-04-23 9757 static inline int ufshcd_clear_rpmb_uac(struct ufs_hba *hba)
b294ff3e34490f Asutosh Das 2021-04-23 9758 {
b294ff3e34490f Asutosh Das 2021-04-23 9759 int ret = 0;
b294ff3e34490f Asutosh Das 2021-04-23 9760
b294ff3e34490f Asutosh Das 2021-04-23 9761 if (!hba->wlun_rpmb_clr_ua)
b294ff3e34490f Asutosh Das 2021-04-23 9762 return 0;
b294ff3e34490f Asutosh Das 2021-04-23 9763 ret = ufshcd_clear_ua_wlun(hba, UFS_UPIU_RPMB_WLUN);
b294ff3e34490f Asutosh Das 2021-04-23 9764 if (!ret)
b294ff3e34490f Asutosh Das 2021-04-23 9765 hba->wlun_rpmb_clr_ua = 0;
b294ff3e34490f Asutosh Das 2021-04-23 9766 return ret;
b294ff3e34490f Asutosh Das 2021-04-23 9767 }
b294ff3e34490f Asutosh Das 2021-04-23 9768
6874b79b80a6d8 YueHaibing 2021-06-11 9769 #ifdef CONFIG_PM_SLEEP
b294ff3e34490f Asutosh Das 2021-04-23 9770 static int ufshcd_rpmb_resume(struct device *dev)
b294ff3e34490f Asutosh Das 2021-04-23 9771 {
b294ff3e34490f Asutosh Das 2021-04-23 9772 struct ufs_hba *hba = wlun_dev_to_hba(dev);
b294ff3e34490f Asutosh Das 2021-04-23 9773
b294ff3e34490f Asutosh Das 2021-04-23 9774 if (hba->sdev_rpmb)
b294ff3e34490f Asutosh Das 2021-04-23 9775 ufshcd_clear_rpmb_uac(hba);
b294ff3e34490f Asutosh Das 2021-04-23 9776 return 0;
b294ff3e34490f Asutosh Das 2021-04-23 9777 }
6874b79b80a6d8 YueHaibing 2021-06-11 9778 #endif
b294ff3e34490f Asutosh Das 2021-04-23 9779
b294ff3e34490f Asutosh Das 2021-04-23 9780 static const struct dev_pm_ops ufs_rpmb_pm_ops = {
b294ff3e34490f Asutosh Das 2021-04-23 @9781 SET_RUNTIME_PM_OPS(NULL, ufshcd_rpmb_resume, NULL)
b294ff3e34490f Asutosh Das 2021-04-23 9782 SET_SYSTEM_SLEEP_PM_OPS(NULL, ufshcd_rpmb_resume)
b294ff3e34490f Asutosh Das 2021-04-23 9783 };
b294ff3e34490f Asutosh Das 2021-04-23 9784

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]


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2021-07-26 18:03:03

by Bart Van Assche

[permalink] [raw]
Subject: Re: [PATCH -next] scsi: ufs: fix build warning without CONFIG_PM

On 6/11/21 6:06 AM, YueHaibing wrote:
> drivers/scsi/ufs/ufshcd.c:9770:12: warning: ‘ufshcd_rpmb_resume’ defined but not used [-Wunused-function]
> static int ufshcd_rpmb_resume(struct device *dev)
> ^~~~~~~~~~~~~~~~~~
> drivers/scsi/ufs/ufshcd.c:9037:12: warning: ‘ufshcd_wl_runtime_resume’ defined but not used [-Wunused-function]
> static int ufshcd_wl_runtime_resume(struct device *dev)
> ^~~~~~~~~~~~~~~~~~~~~~~~
> drivers/scsi/ufs/ufshcd.c:9017:12: warning: ‘ufshcd_wl_runtime_suspend’ defined but not used [-Wunused-function]
> static int ufshcd_wl_runtime_suspend(struct device *dev)
> ^~~~~~~~~~~~~~~~~~~~~~~~~
>
> Move it into #ifdef block to fix this.
>
> Signed-off-by: YueHaibing <[email protected]>
> ---
> drivers/scsi/ufs/ufshcd.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index b87ff68aa9aa..0c54589e186a 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -8926,6 +8926,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
> return ret;
> }
>
> +#ifdef CONFIG_PM_SLEEP
> static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
> {
> int ret;
> @@ -9053,7 +9054,6 @@ static int ufshcd_wl_runtime_resume(struct device *dev)
> return ret;
> }
>
> -#ifdef CONFIG_PM_SLEEP
> static int ufshcd_wl_suspend(struct device *dev)
> {
> struct scsi_device *sdev = to_scsi_device(dev);
> @@ -9766,6 +9766,7 @@ static inline int ufshcd_clear_rpmb_uac(struct ufs_hba *hba)
> return ret;
> }
>
> +#ifdef CONFIG_PM_SLEEP
> static int ufshcd_rpmb_resume(struct device *dev)
> {
> struct ufs_hba *hba = wlun_dev_to_hba(dev);
> @@ -9774,6 +9775,7 @@ static int ufshcd_rpmb_resume(struct device *dev)
> ufshcd_clear_rpmb_uac(hba);
> return 0;
> }
> +#endif
>
> static const struct dev_pm_ops ufs_rpmb_pm_ops = {
> SET_RUNTIME_PM_OPS(NULL, ufshcd_rpmb_resume, NULL)

Hi YueHaibing,

Can you take a look at
https://lore.kernel.org/linux-scsi/[email protected]/T/#m6e7a02fc79634b5b77cfb77849253ac41d021389?
I let the kernel robot verify that patch before I posted it on the
linux-scsi mailing list.

Thanks,

Bart.

2021-07-27 02:58:51

by Yue Haibing

[permalink] [raw]
Subject: Re: [PATCH -next] scsi: ufs: fix build warning without CONFIG_PM



On 2021/7/27 1:59, Bart Van Assche wrote:
> On 6/11/21 6:06 AM, YueHaibing wrote:
>> drivers/scsi/ufs/ufshcd.c:9770:12: warning: ‘ufshcd_rpmb_resume’ defined but not used [-Wunused-function]
>>   static int ufshcd_rpmb_resume(struct device *dev)
>>              ^~~~~~~~~~~~~~~~~~
>> drivers/scsi/ufs/ufshcd.c:9037:12: warning: ‘ufshcd_wl_runtime_resume’ defined but not used [-Wunused-function]
>>   static int ufshcd_wl_runtime_resume(struct device *dev)
>>              ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/scsi/ufs/ufshcd.c:9017:12: warning: ‘ufshcd_wl_runtime_suspend’ defined but not used [-Wunused-function]
>>   static int ufshcd_wl_runtime_suspend(struct device *dev)
>>              ^~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> Move it into #ifdef block to fix this.
>>
>> Signed-off-by: YueHaibing <[email protected]>
>> ---
>>   drivers/scsi/ufs/ufshcd.c | 4 +++-
>>   1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
>> index b87ff68aa9aa..0c54589e186a 100644
>> --- a/drivers/scsi/ufs/ufshcd.c
>> +++ b/drivers/scsi/ufs/ufshcd.c
>> @@ -8926,6 +8926,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
>>       return ret;
>>   }
>>   +#ifdef CONFIG_PM_SLEEP
>>   static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
>>   {
>>       int ret;
>> @@ -9053,7 +9054,6 @@ static int ufshcd_wl_runtime_resume(struct device *dev)
>>       return ret;
>>   }
>>   -#ifdef CONFIG_PM_SLEEP
>>   static int ufshcd_wl_suspend(struct device *dev)
>>   {
>>       struct scsi_device *sdev = to_scsi_device(dev);
>> @@ -9766,6 +9766,7 @@ static inline int ufshcd_clear_rpmb_uac(struct ufs_hba *hba)
>>       return ret;
>>   }
>>   +#ifdef CONFIG_PM_SLEEP
>>   static int ufshcd_rpmb_resume(struct device *dev)
>>   {
>>       struct ufs_hba *hba = wlun_dev_to_hba(dev);
>> @@ -9774,6 +9775,7 @@ static int ufshcd_rpmb_resume(struct device *dev)
>>           ufshcd_clear_rpmb_uac(hba);
>>       return 0;
>>   }
>> +#endif
>>     static const struct dev_pm_ops ufs_rpmb_pm_ops = {
>>       SET_RUNTIME_PM_OPS(NULL, ufshcd_rpmb_resume, NULL)
>
> Hi YueHaibing,
>
> Can you take a look at https://lore.kernel.org/linux-scsi/[email protected]/T/#m6e7a02fc79634b5b77cfb77849253ac41d021389? I let the kernel robot verify that patch before I posted it on the linux-scsi mailing list.

__ufshcd_wl_resume() is needed while CONFIG_PM is enabled, and my patch v2 has been Applied. See:

https://lore.kernel.org/r/[email protected]

I will let Hulk Robot test your patch serials, and report if any.

>
> Thanks,
>
> Bart.
> .