* [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused
@ 2023-03-11 11:16 Krzysztof Kozlowski
2023-03-11 11:16 ` [PATCH 2/2] hwmon: tmp512: " Krzysztof Kozlowski
` (2 more replies)
0 siblings, 3 replies; 10+ messages in thread
From: Krzysztof Kozlowski @ 2023-03-11 11:16 UTC (permalink / raw)
To: Jean Delvare, Guenter Roeck, Eric Tremblay, linux-hwmon, linux-kernel
Cc: Krzysztof Kozlowski
The driver can be compile tested with !CONFIG_OF making certain data
unused:
drivers/hwmon/gpio-fan.c:484:34: error: ‘of_gpio_fan_match’ defined but not used [-Werror=unused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
drivers/hwmon/gpio-fan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index e75db6f64e8c..be7f06fb7f78 100644
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -481,7 +481,7 @@ static int gpio_fan_get_of_data(struct gpio_fan_data *fan_data)
return 0;
}
-static const struct of_device_id of_gpio_fan_match[] = {
+static const struct of_device_id of_gpio_fan_match[] __maybe_unused = {
{ .compatible = "gpio-fan", },
{},
};
--
2.34.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 2/2] hwmon: tmp512: mark OF related data as maybe unused
2023-03-11 11:16 [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused Krzysztof Kozlowski
@ 2023-03-11 11:16 ` Krzysztof Kozlowski
2023-03-12 18:10 ` Guenter Roeck
2023-03-12 18:00 ` [PATCH 1/2] hwmon: gpio-fan: " Guenter Roeck
2023-03-12 18:06 ` Guenter Roeck
2 siblings, 1 reply; 10+ messages in thread
From: Krzysztof Kozlowski @ 2023-03-11 11:16 UTC (permalink / raw)
To: Jean Delvare, Guenter Roeck, Eric Tremblay, linux-hwmon, linux-kernel
Cc: Krzysztof Kozlowski
The driver can be compile tested with !CONFIG_OF making certain data
unused:
drivers/hwmon/tmp513.c:610:34: error: ‘tmp51x_of_match’ defined but not used [-Werror=unused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
drivers/hwmon/tmp513.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/tmp513.c b/drivers/hwmon/tmp513.c
index 47bbe47e062f..78cdd2d2d875 100644
--- a/drivers/hwmon/tmp513.c
+++ b/drivers/hwmon/tmp513.c
@@ -607,7 +607,7 @@ static const struct i2c_device_id tmp51x_id[] = {
};
MODULE_DEVICE_TABLE(i2c, tmp51x_id);
-static const struct of_device_id tmp51x_of_match[] = {
+static const struct of_device_id tmp51x_of_match[] __maybe_unused = {
{
.compatible = "ti,tmp512",
.data = (void *)tmp512
--
2.34.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused
2023-03-11 11:16 [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused Krzysztof Kozlowski
2023-03-11 11:16 ` [PATCH 2/2] hwmon: tmp512: " Krzysztof Kozlowski
@ 2023-03-12 18:00 ` Guenter Roeck
2023-03-12 18:06 ` Guenter Roeck
2 siblings, 0 replies; 10+ messages in thread
From: Guenter Roeck @ 2023-03-12 18:00 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Jean Delvare, Eric Tremblay, linux-hwmon, linux-kernel
On Sat, Mar 11, 2023 at 12:16:09PM +0100, Krzysztof Kozlowski wrote:
> The driver can be compile tested with !CONFIG_OF making certain data
> unused:
>
> drivers/hwmon/gpio-fan.c:484:34: error: ‘of_gpio_fan_match’ defined but not used [-Werror=unused-const-variable=]
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Applied.
Thanks,
Guenter
> ---
> drivers/hwmon/gpio-fan.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
> index e75db6f64e8c..be7f06fb7f78 100644
> --- a/drivers/hwmon/gpio-fan.c
> +++ b/drivers/hwmon/gpio-fan.c
> @@ -481,7 +481,7 @@ static int gpio_fan_get_of_data(struct gpio_fan_data *fan_data)
> return 0;
> }
>
> -static const struct of_device_id of_gpio_fan_match[] = {
> +static const struct of_device_id of_gpio_fan_match[] __maybe_unused = {
> { .compatible = "gpio-fan", },
> {},
> };
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused
2023-03-11 11:16 [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused Krzysztof Kozlowski
2023-03-11 11:16 ` [PATCH 2/2] hwmon: tmp512: " Krzysztof Kozlowski
2023-03-12 18:00 ` [PATCH 1/2] hwmon: gpio-fan: " Guenter Roeck
@ 2023-03-12 18:06 ` Guenter Roeck
2023-03-12 18:08 ` Krzysztof Kozlowski
2 siblings, 1 reply; 10+ messages in thread
From: Guenter Roeck @ 2023-03-12 18:06 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Jean Delvare, Eric Tremblay, linux-hwmon, linux-kernel
On Sat, Mar 11, 2023 at 12:16:09PM +0100, Krzysztof Kozlowski wrote:
> The driver can be compile tested with !CONFIG_OF making certain data
> unused:
>
> drivers/hwmon/gpio-fan.c:484:34: error: ‘of_gpio_fan_match’ defined but not used [-Werror=unused-const-variable=]
>
How do you trigger that ? The driver depends on OF_GPIO which
in turn depends on OF. Arguably that means that of_match_ptr()
doesnot really make sense, but still I don't see how you can
trigger the above error message.
Thanks,
Guenter
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
> drivers/hwmon/gpio-fan.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
> index e75db6f64e8c..be7f06fb7f78 100644
> --- a/drivers/hwmon/gpio-fan.c
> +++ b/drivers/hwmon/gpio-fan.c
> @@ -481,7 +481,7 @@ static int gpio_fan_get_of_data(struct gpio_fan_data *fan_data)
> return 0;
> }
>
> -static const struct of_device_id of_gpio_fan_match[] = {
> +static const struct of_device_id of_gpio_fan_match[] __maybe_unused = {
> { .compatible = "gpio-fan", },
> {},
> };
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused
2023-03-12 18:06 ` Guenter Roeck
@ 2023-03-12 18:08 ` Krzysztof Kozlowski
2023-03-12 18:48 ` Guenter Roeck
0 siblings, 1 reply; 10+ messages in thread
From: Krzysztof Kozlowski @ 2023-03-12 18:08 UTC (permalink / raw)
To: Guenter Roeck; +Cc: Jean Delvare, Eric Tremblay, linux-hwmon, linux-kernel
On 12/03/2023 19:06, Guenter Roeck wrote:
> On Sat, Mar 11, 2023 at 12:16:09PM +0100, Krzysztof Kozlowski wrote:
>> The driver can be compile tested with !CONFIG_OF making certain data
>> unused:
>>
>> drivers/hwmon/gpio-fan.c:484:34: error: ‘of_gpio_fan_match’ defined but not used [-Werror=unused-const-variable=]
>>
>
> How do you trigger that ? The driver depends on OF_GPIO which
> in turn depends on OF. Arguably that means that of_match_ptr()
> doesnot really make sense, but still I don't see how you can
> trigger the above error message.
I can drop of_match_ptr, it's indeed in many cases not needed.
I just build x86_64 allyesconfig minus OF, with W=1.
Do you want to me to drop of_match_ptr?
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 2/2] hwmon: tmp512: mark OF related data as maybe unused
2023-03-11 11:16 ` [PATCH 2/2] hwmon: tmp512: " Krzysztof Kozlowski
@ 2023-03-12 18:10 ` Guenter Roeck
0 siblings, 0 replies; 10+ messages in thread
From: Guenter Roeck @ 2023-03-12 18:10 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Jean Delvare, Eric Tremblay, linux-hwmon, linux-kernel
On Sat, Mar 11, 2023 at 12:16:10PM +0100, Krzysztof Kozlowski wrote:
> The driver can be compile tested with !CONFIG_OF making certain data
> unused:
>
> drivers/hwmon/tmp513.c:610:34: error: ‘tmp51x_of_match’ defined but not used [-Werror=unused-const-variable=]
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Applied.
Thanks,
Guenter
> ---
> drivers/hwmon/tmp513.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/hwmon/tmp513.c b/drivers/hwmon/tmp513.c
> index 47bbe47e062f..78cdd2d2d875 100644
> --- a/drivers/hwmon/tmp513.c
> +++ b/drivers/hwmon/tmp513.c
> @@ -607,7 +607,7 @@ static const struct i2c_device_id tmp51x_id[] = {
> };
> MODULE_DEVICE_TABLE(i2c, tmp51x_id);
>
> -static const struct of_device_id tmp51x_of_match[] = {
> +static const struct of_device_id tmp51x_of_match[] __maybe_unused = {
> {
> .compatible = "ti,tmp512",
> .data = (void *)tmp512
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused
2023-03-12 18:08 ` Krzysztof Kozlowski
@ 2023-03-12 18:48 ` Guenter Roeck
2023-03-12 19:32 ` Krzysztof Kozlowski
0 siblings, 1 reply; 10+ messages in thread
From: Guenter Roeck @ 2023-03-12 18:48 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Jean Delvare, Eric Tremblay, linux-hwmon, linux-kernel
On 3/12/23 11:08, Krzysztof Kozlowski wrote:
> On 12/03/2023 19:06, Guenter Roeck wrote:
>> On Sat, Mar 11, 2023 at 12:16:09PM +0100, Krzysztof Kozlowski wrote:
>>> The driver can be compile tested with !CONFIG_OF making certain data
>>> unused:
>>>
>>> drivers/hwmon/gpio-fan.c:484:34: error: ‘of_gpio_fan_match’ defined but not used [-Werror=unused-const-variable=]
>>>
>>
>> How do you trigger that ? The driver depends on OF_GPIO which
>> in turn depends on OF. Arguably that means that of_match_ptr()
>> doesnot really make sense, but still I don't see how you can
>> trigger the above error message.
>
> I can drop of_match_ptr, it's indeed in many cases not needed.
>
> I just build x86_64 allyesconfig minus OF, with W=1.
>
x86_64 allyesconfig minus OF minus results in SENSORS_GPIO_FAN being
deselected (it doesn't show up in the configuration anymore at all
after "make olddefconfig").
$ make allyesconfig
$ grep SENSORS_GPIO_FAN .config
CONFIG_SENSORS_GPIO_FAN=y
$ sed -i -e 's/CONFIG_OF=y/# CONFIG_OF is not set/' .config
$ make olddefconfig
#
# configuration written to .config
#
$ grep SENSORS_GPIO_FAN .config
$
I suspect what you did is to disable CONFIG_OF, and then you built
the driver without realizing that is was deselected.
> Do you want to me to drop of_match_ptr?
>
Yes, sure, that makes more sense. The reason though is that the
driver depends on CONFIG_OF=y, not because of the build failure.
Thanks,
Guenter
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused
2023-03-12 18:48 ` Guenter Roeck
@ 2023-03-12 19:32 ` Krzysztof Kozlowski
2023-03-12 21:03 ` Guenter Roeck
0 siblings, 1 reply; 10+ messages in thread
From: Krzysztof Kozlowski @ 2023-03-12 19:32 UTC (permalink / raw)
To: Guenter Roeck; +Cc: Jean Delvare, Eric Tremblay, linux-hwmon, linux-kernel
On 12/03/2023 19:48, Guenter Roeck wrote:
> On 3/12/23 11:08, Krzysztof Kozlowski wrote:
>> On 12/03/2023 19:06, Guenter Roeck wrote:
>>> On Sat, Mar 11, 2023 at 12:16:09PM +0100, Krzysztof Kozlowski wrote:
>>>> The driver can be compile tested with !CONFIG_OF making certain data
>>>> unused:
>>>>
>>>> drivers/hwmon/gpio-fan.c:484:34: error: ‘of_gpio_fan_match’ defined but not used [-Werror=unused-const-variable=]
>>>>
>>>
>>> How do you trigger that ? The driver depends on OF_GPIO which
>>> in turn depends on OF. Arguably that means that of_match_ptr()
>>> doesnot really make sense, but still I don't see how you can
>>> trigger the above error message.
>>
>> I can drop of_match_ptr, it's indeed in many cases not needed.
>>
>> I just build x86_64 allyesconfig minus OF, with W=1.
>>
>
> x86_64 allyesconfig minus OF minus results in SENSORS_GPIO_FAN being
> deselected (it doesn't show up in the configuration anymore at all
> after "make olddefconfig").
>
> $ make allyesconfig
> $ grep SENSORS_GPIO_FAN .config
> CONFIG_SENSORS_GPIO_FAN=y
> $ sed -i -e 's/CONFIG_OF=y/# CONFIG_OF is not set/' .config
> $ make olddefconfig
> #
> # configuration written to .config
> #
> $ grep SENSORS_GPIO_FAN .config
> $
>
> I suspect what you did is to disable CONFIG_OF, and then you built
> the driver without realizing that is was deselected.
The driver would not built. I mean, I did not cheat here to built it
with incorrect config.
I rather suspect that config is broken due to:
WARNING: unmet direct dependencies detected for OF_GPIO
WARNING: unmet direct dependencies detected for GPIO_SYSCON
WARNING: unmet direct dependencies detected for MFD_STMFX
This was next-20230308
>
>> Do you want to me to drop of_match_ptr?
>>
>
> Yes, sure, that makes more sense. The reason though is that the
> driver depends on CONFIG_OF=y, not because of the build failure.
I'll send v2 of both patches because anyway dropping of_match_ptr is
preferred.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused
2023-03-12 19:32 ` Krzysztof Kozlowski
@ 2023-03-12 21:03 ` Guenter Roeck
2023-03-12 21:14 ` Krzysztof Kozlowski
0 siblings, 1 reply; 10+ messages in thread
From: Guenter Roeck @ 2023-03-12 21:03 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: Jean Delvare, Eric Tremblay, linux-hwmon, linux-kernel
On 3/12/23 12:32, Krzysztof Kozlowski wrote:
> On 12/03/2023 19:48, Guenter Roeck wrote:
>> On 3/12/23 11:08, Krzysztof Kozlowski wrote:
>>> On 12/03/2023 19:06, Guenter Roeck wrote:
>>>> On Sat, Mar 11, 2023 at 12:16:09PM +0100, Krzysztof Kozlowski wrote:
>>>>> The driver can be compile tested with !CONFIG_OF making certain data
>>>>> unused:
>>>>>
>>>>> drivers/hwmon/gpio-fan.c:484:34: error: ‘of_gpio_fan_match’ defined but not used [-Werror=unused-const-variable=]
>>>>>
>>>>
>>>> How do you trigger that ? The driver depends on OF_GPIO which
>>>> in turn depends on OF. Arguably that means that of_match_ptr()
>>>> doesnot really make sense, but still I don't see how you can
>>>> trigger the above error message.
>>>
>>> I can drop of_match_ptr, it's indeed in many cases not needed.
>>>
>>> I just build x86_64 allyesconfig minus OF, with W=1.
>>>
>>
>> x86_64 allyesconfig minus OF minus results in SENSORS_GPIO_FAN being
>> deselected (it doesn't show up in the configuration anymore at all
>> after "make olddefconfig").
>>
>> $ make allyesconfig
>> $ grep SENSORS_GPIO_FAN .config
>> CONFIG_SENSORS_GPIO_FAN=y
>> $ sed -i -e 's/CONFIG_OF=y/# CONFIG_OF is not set/' .config
>> $ make olddefconfig
>> #
>> # configuration written to .config
>> #
>> $ grep SENSORS_GPIO_FAN .config
>> $
>>
>> I suspect what you did is to disable CONFIG_OF, and then you built
>> the driver without realizing that is was deselected.
>
> The driver would not built. I mean, I did not cheat here to built it
> with incorrect config.
>
> I rather suspect that config is broken due to:
> WARNING: unmet direct dependencies detected for OF_GPIO
> WARNING: unmet direct dependencies detected for GPIO_SYSCON
> WARNING: unmet direct dependencies detected for MFD_STMFX
>
> This was next-20230308
>
Interesting. That has been fixed in next-20230310, where
SENSORS_GPIO_FAN is again deselected if CONFIG_OF is disabled.
>>
>>> Do you want to me to drop of_match_ptr?
>>>
>>
>> Yes, sure, that makes more sense. The reason though is that the
>> driver depends on CONFIG_OF=y, not because of the build failure.
>
> I'll send v2 of both patches because anyway dropping of_match_ptr is
> preferred.
>
Ok.
Thanks,
Guenter
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused
2023-03-12 21:03 ` Guenter Roeck
@ 2023-03-12 21:14 ` Krzysztof Kozlowski
0 siblings, 0 replies; 10+ messages in thread
From: Krzysztof Kozlowski @ 2023-03-12 21:14 UTC (permalink / raw)
To: Guenter Roeck; +Cc: Jean Delvare, Eric Tremblay, linux-hwmon, linux-kernel
On 12/03/2023 22:03, Guenter Roeck wrote:
>>
>> The driver would not built. I mean, I did not cheat here to built it
>> with incorrect config.
>>
>> I rather suspect that config is broken due to:
>> WARNING: unmet direct dependencies detected for OF_GPIO
>> WARNING: unmet direct dependencies detected for GPIO_SYSCON
>> WARNING: unmet direct dependencies detected for MFD_STMFX
>>
>> This was next-20230308
>>
> Interesting. That has been fixed in next-20230310, where
> SENSORS_GPIO_FAN is again deselected if CONFIG_OF is disabled.
Nice, I picked by coincidence lucky base :)
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2023-03-12 21:14 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-03-11 11:16 [PATCH 1/2] hwmon: gpio-fan: mark OF related data as maybe unused Krzysztof Kozlowski
2023-03-11 11:16 ` [PATCH 2/2] hwmon: tmp512: " Krzysztof Kozlowski
2023-03-12 18:10 ` Guenter Roeck
2023-03-12 18:00 ` [PATCH 1/2] hwmon: gpio-fan: " Guenter Roeck
2023-03-12 18:06 ` Guenter Roeck
2023-03-12 18:08 ` Krzysztof Kozlowski
2023-03-12 18:48 ` Guenter Roeck
2023-03-12 19:32 ` Krzysztof Kozlowski
2023-03-12 21:03 ` Guenter Roeck
2023-03-12 21:14 ` Krzysztof Kozlowski
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).