Re: [PATCH] platform/x86: dell: fix DELL_WMI_PRIVACY dependencies & build error

[Hans de Goede]

Hi,

On 9/18/21 6:48 AM, Randy Dunlap wrote:
> When DELL_WMI=y, DELL_WMI_PRIVACY=y, and LEDS_TRIGGER_AUDIO=m, there
> is a linker error since the LEDS trigger code is built as a loadable
> module. This happens because DELL_WMI_PRIVACY is a bool that depends
> on a tristate (LEDS_TRIGGER_AUDIO=m), which can be dangerous.
> 
> ld: drivers/platform/x86/dell/dell-wmi-privacy.o: in function `dell_privacy_wmi_probe':
> dell-wmi-privacy.c:(.text+0x3df): undefined reference to `ledtrig_audio_get'
> 
> Fixes: 8af9fa37b8a3 ("platform/x86: dell-privacy: Add support for Dell hardware privacy")
> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> Cc: Perry Yuan <Perry.Yuan@xxxxxxxx>
> Cc: Dell.Client.Kernel@xxxxxxxx
> Cc: platform-driver-x86@xxxxxxxxxxxxxxx
> Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
> Cc: Mark Gross <mgross@xxxxxxxxxxxxxxx>

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans


> ---
>  drivers/platform/x86/dell/Kconfig |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> --- linux-next-20210917.orig/drivers/platform/x86/dell/Kconfig
> +++ linux-next-20210917/drivers/platform/x86/dell/Kconfig
> @@ -166,8 +166,7 @@ config DELL_WMI
>  
>  config DELL_WMI_PRIVACY
>  	bool "Dell WMI Hardware Privacy Support"
> -	depends on DELL_WMI
> -	depends on LEDS_TRIGGER_AUDIO
> +	depends on LEDS_TRIGGER_AUDIO = y || DELL_WMI = LEDS_TRIGGER_AUDIO
>  	help
>  	  This option adds integration with the "Dell Hardware Privacy"
>  	  feature of Dell laptops to the dell-wmi driver.
>