2021-06-10 11:27:51

by Baokun Li

[permalink] [raw]
Subject: [PATCH -next] ACPI: sysfs: fix doc warnings in device_sysfs.c

Fixes the following W=1 kernel build warning(s):

drivers/acpi/device_sysfs.c:278: warning: Function parameter or
member 'dev' not described in 'acpi_device_uevent_modalias'
drivers/acpi/device_sysfs.c:278: warning: Function parameter or
member 'env' not described in 'acpi_device_uevent_modalias'
drivers/acpi/device_sysfs.c:323: warning: Function parameter or
member 'dev' not described in 'acpi_device_modalias'
drivers/acpi/device_sysfs.c:323: warning: Function parameter or
member 'buf' not described in 'acpi_device_modalias'
drivers/acpi/device_sysfs.c:323: warning: Function parameter or
member 'size' not described in 'acpi_device_modalias'

Signed-off-by: Baokun Li <[email protected]>
---
drivers/acpi/device_sysfs.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c
index fa2c1c93072c..3b08efa88ba5 100644
--- a/drivers/acpi/device_sysfs.c
+++ b/drivers/acpi/device_sysfs.c
@@ -268,7 +268,8 @@ int __acpi_device_uevent_modalias(struct acpi_device *adev,

/**
* acpi_device_uevent_modalias - uevent modalias for ACPI-enumerated devices.
- *
+ * @dev: Struct device.
+ * @env: Uevent kobject.
* Create the uevent modalias field for ACPI-enumerated devices.
*
* Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
@@ -313,7 +314,9 @@ static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size)

/**
* acpi_device_modalias - modalias sysfs attribute for ACPI-enumerated devices.
- *
+ * @dev: Struct device.
+ * @buf: The buffer.
+ * @size: Size of the buffer.
* Create the modalias sysfs attribute for ACPI-enumerated devices.
*
* Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
--
2.31.1


2021-06-14 15:31:44

by Rafael J. Wysocki

[permalink] [raw]
Subject: Re: [PATCH -next] ACPI: sysfs: fix doc warnings in device_sysfs.c

On Thu, Jun 10, 2021 at 1:25 PM Baokun Li <[email protected]> wrote:
>
> Fixes the following W=1 kernel build warning(s):
>
> drivers/acpi/device_sysfs.c:278: warning: Function parameter or
> member 'dev' not described in 'acpi_device_uevent_modalias'
> drivers/acpi/device_sysfs.c:278: warning: Function parameter or
> member 'env' not described in 'acpi_device_uevent_modalias'
> drivers/acpi/device_sysfs.c:323: warning: Function parameter or
> member 'dev' not described in 'acpi_device_modalias'
> drivers/acpi/device_sysfs.c:323: warning: Function parameter or
> member 'buf' not described in 'acpi_device_modalias'
> drivers/acpi/device_sysfs.c:323: warning: Function parameter or
> member 'size' not described in 'acpi_device_modalias'
>
> Signed-off-by: Baokun Li <[email protected]>
> ---
> drivers/acpi/device_sysfs.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c
> index fa2c1c93072c..3b08efa88ba5 100644
> --- a/drivers/acpi/device_sysfs.c
> +++ b/drivers/acpi/device_sysfs.c
> @@ -268,7 +268,8 @@ int __acpi_device_uevent_modalias(struct acpi_device *adev,
>
> /**
> * acpi_device_uevent_modalias - uevent modalias for ACPI-enumerated devices.
> - *
> + * @dev: Struct device.
> + * @env: Uevent kobject.

This doesn't appear to be accurate.

@env doesn't point to a kobject.

> * Create the uevent modalias field for ACPI-enumerated devices.
> *
> * Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
> @@ -313,7 +314,9 @@ static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size)
>
> /**
> * acpi_device_modalias - modalias sysfs attribute for ACPI-enumerated devices.
> - *
> + * @dev: Struct device.
> + * @buf: The buffer.
> + * @size: Size of the buffer.
> * Create the modalias sysfs attribute for ACPI-enumerated devices.
> *
> * Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
> --
> 2.31.1
>

2021-06-15 03:52:39

by Baokun Li

[permalink] [raw]
Subject: Re: [PATCH -next] ACPI: sysfs: fix doc warnings in device_sysfs.c


在 2021/6/14 23:26, Rafael J. Wysocki 写道:
> On Thu, Jun 10, 2021 at 1:25 PM Baokun Li <[email protected]> wrote:
>> Fixes the following W=1 kernel build warning(s):
>>
>> drivers/acpi/device_sysfs.c:278: warning: Function parameter or
>> member 'dev' not described in 'acpi_device_uevent_modalias'
>> drivers/acpi/device_sysfs.c:278: warning: Function parameter or
>> member 'env' not described in 'acpi_device_uevent_modalias'
>> drivers/acpi/device_sysfs.c:323: warning: Function parameter or
>> member 'dev' not described in 'acpi_device_modalias'
>> drivers/acpi/device_sysfs.c:323: warning: Function parameter or
>> member 'buf' not described in 'acpi_device_modalias'
>> drivers/acpi/device_sysfs.c:323: warning: Function parameter or
>> member 'size' not described in 'acpi_device_modalias'
>>
>> Signed-off-by: Baokun Li <[email protected]>
>> ---
>> drivers/acpi/device_sysfs.c | 7 +++++--
>> 1 file changed, 5 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c
>> index fa2c1c93072c..3b08efa88ba5 100644
>> --- a/drivers/acpi/device_sysfs.c
>> +++ b/drivers/acpi/device_sysfs.c
>> @@ -268,7 +268,8 @@ int __acpi_device_uevent_modalias(struct acpi_device *adev,
>>
>> /**
>> * acpi_device_uevent_modalias - uevent modalias for ACPI-enumerated devices.
>> - *
>> + * @dev: Struct device.
>> + * @env: Uevent kobject.
> This doesn't appear to be accurate.
>
> @env doesn't point to a kobject.

I didn't quite understand that variable.

But I saw the same paramter in  'drivers/misc/mei/bus.c +1001' where has
comments.

So I copied that comments here.


 997 /**
 998  * mei_cl_device_uevent - me client bus uevent handler
 999  *
1000  * @dev: device
1001  * @env: uevent kobject
1002  *
1003  * Return: 0 on success -ENOMEM on when add_uevent_var fails
1004  */
1005 static int mei_cl_device_uevent(struct device *dev, struct
kobj_uevent_env *env)


Thank you for your advice.

I'm about to send a patch v2 with the changes suggested by you.

Best Regards.


>
>> * Create the uevent modalias field for ACPI-enumerated devices.
>> *
>> * Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
>> @@ -313,7 +314,9 @@ static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size)
>>
>> /**
>> * acpi_device_modalias - modalias sysfs attribute for ACPI-enumerated devices.
>> - *
>> + * @dev: Struct device.
>> + * @buf: The buffer.
>> + * @size: Size of the buffer.
>> * Create the modalias sysfs attribute for ACPI-enumerated devices.
>> *
>> * Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
>> --
>> 2.31.1
>>
> .