[PATCH] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[PATCH] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[Srinivas Kandagatla]

From: Niklas Cassel <niklas.cassel@linaro.org>

QCOM_QMI_HELPERS is a hidden kconfig, so the proper usage is
to select it, not depend upon it.

Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 drivers/slimbus/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/slimbus/Kconfig b/drivers/slimbus/Kconfig
index 9d73ad806698..9cca2c3559f2 100644
--- a/drivers/slimbus/Kconfig
+++ b/drivers/slimbus/Kconfig
@@ -22,8 +22,8 @@ config SLIM_QCOM_CTRL
 
 config SLIM_QCOM_NGD_CTRL
 	tristate "Qualcomm SLIMbus Satellite Non-Generic Device Component"
-	depends on QCOM_QMI_HELPERS
 	depends on HAS_IOMEM && DMA_ENGINE
+	select QCOM_QMI_HELPERS
 	help
 	  Select driver if Qualcomm's SLIMbus Satellite Non-Generic Device
 	  Component is programmed using Linux kernel.
-- 
2.19.0

Re: [PATCH] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[Greg KH]

On Wed, Oct 03, 2018 at 06:52:36PM +0100, Srinivas Kandagatla wrote:
> From: Niklas Cassel <niklas.cassel@linaro.org>
> 
> QCOM_QMI_HELPERS is a hidden kconfig, so the proper usage is
> to select it, not depend upon it.
> 
> Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
> Reviewed-by: Alex Elder <elder@linaro.org>
> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
>  drivers/slimbus/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/slimbus/Kconfig b/drivers/slimbus/Kconfig
> index 9d73ad806698..9cca2c3559f2 100644
> --- a/drivers/slimbus/Kconfig
> +++ b/drivers/slimbus/Kconfig
> @@ -22,8 +22,8 @@ config SLIM_QCOM_CTRL
>  
>  config SLIM_QCOM_NGD_CTRL
>  	tristate "Qualcomm SLIMbus Satellite Non-Generic Device Component"
> -	depends on QCOM_QMI_HELPERS
>  	depends on HAS_IOMEM && DMA_ENGINE
> +	select QCOM_QMI_HELPERS
>  	help
>  	  Select driver if Qualcomm's SLIMbus Satellite Non-Generic Device
>  	  Component is programmed using Linux kernel.
> -- 
> 2.19.0
> 

This adds the following build warning when applied:

WARNING: unmet direct dependencies detected for QCOM_QMI_HELPERS
  Depends on [n]: ARCH_QCOM && NET [=y]
  Selected by [m]:
  - SLIM_QCOM_NGD_CTRL [=m] && SLIMBUS [=m] && HAS_IOMEM [=y] && DMA_ENGINE [=y]

[PATCH v2] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[Niklas Cassel]

QCOM_QMI_HELPERS is a hidden kconfig, so the proper usage is
to select it, not depend upon it.

Because of this change, we now also need to depend on the same
Kconfigs as QCOM_QMI_HELPERS depends on.

Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
---
Hello Greg, Srini,

I'm sorry for this.
(Although I'm a bit curious why 0-day test bot didn't catch this.)

Considering that I've just changed QCOM_QMI_HELPERS in:
ccfb464cd106 ("soc: qcom: Allow COMPILE_TEST of qcom SoC Kconfigs")
which is currently in linux-next, and that this Kconfig should
depend on the same Kconfigs as QCOM_QMI_HELPERS depends on,
I chose to have this Kconfig match the QCOM_QMI_HELPERS that is
currently in linux-next.

 drivers/slimbus/Kconfig | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/slimbus/Kconfig b/drivers/slimbus/Kconfig
index 9d73ad806698..8cd595148d17 100644
--- a/drivers/slimbus/Kconfig
+++ b/drivers/slimbus/Kconfig
@@ -22,8 +22,9 @@ config SLIM_QCOM_CTRL
 
 config SLIM_QCOM_NGD_CTRL
 	tristate "Qualcomm SLIMbus Satellite Non-Generic Device Component"
-	depends on QCOM_QMI_HELPERS
-	depends on HAS_IOMEM && DMA_ENGINE
+	depends on HAS_IOMEM && DMA_ENGINE && NET
+	depends on ARCH_QCOM || COMPILE_TEST
+	select QCOM_QMI_HELPERS
 	help
 	  Select driver if Qualcomm's SLIMbus Satellite Non-Generic Device
 	  Component is programmed using Linux kernel.
-- 
2.17.2

Re: [PATCH v2] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[Srinivas Kandagatla]

Thanks Niklas for quick v2 patch!

On 15/10/18 20:44, Niklas Cassel wrote:
> QCOM_QMI_HELPERS is a hidden kconfig, so the proper usage is
> to select it, not depend upon it.
> 
> Because of this change, we now also need to depend on the same
> Kconfigs as QCOM_QMI_HELPERS depends on.
> 
> Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>

LGTM

Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

> ---
> Hello Greg, Srini,
> 
> I'm sorry for this.
> (Although I'm a bit curious why 0-day test bot didn't catch this.)
> 
> Considering that I've just changed QCOM_QMI_HELPERS in:
> ccfb464cd106 ("soc: qcom: Allow COMPILE_TEST of qcom SoC Kconfigs")
> which is currently in linux-next, and that this Kconfig should
> depend on the same Kconfigs as QCOM_QMI_HELPERS depends on,
> I chose to have this Kconfig match the QCOM_QMI_HELPERS that is
> currently in linux-next.
> 
>   drivers/slimbus/Kconfig | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/slimbus/Kconfig b/drivers/slimbus/Kconfig
> index 9d73ad806698..8cd595148d17 100644
> --- a/drivers/slimbus/Kconfig
> +++ b/drivers/slimbus/Kconfig
> @@ -22,8 +22,9 @@ config SLIM_QCOM_CTRL
>   
>   config SLIM_QCOM_NGD_CTRL
>   	tristate "Qualcomm SLIMbus Satellite Non-Generic Device Component"
> -	depends on QCOM_QMI_HELPERS
> -	depends on HAS_IOMEM && DMA_ENGINE
> +	depends on HAS_IOMEM && DMA_ENGINE && NET
> +	depends on ARCH_QCOM || COMPILE_TEST
> +	select QCOM_QMI_HELPERS
>   	help
>   	  Select driver if Qualcomm's SLIMbus Satellite Non-Generic Device
>   	  Component is programmed using Linux kernel.
> 

Re: [PATCH v2] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[Greg KH]

On Mon, Oct 15, 2018 at 09:44:41PM +0200, Niklas Cassel wrote:
> QCOM_QMI_HELPERS is a hidden kconfig, so the proper usage is
> to select it, not depend upon it.
> 
> Because of this change, we now also need to depend on the same
> Kconfigs as QCOM_QMI_HELPERS depends on.
> 
> Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
> Hello Greg, Srini,
> 
> I'm sorry for this.
> (Although I'm a bit curious why 0-day test bot didn't catch this.)
> 
> Considering that I've just changed QCOM_QMI_HELPERS in:
> ccfb464cd106 ("soc: qcom: Allow COMPILE_TEST of qcom SoC Kconfigs")
> which is currently in linux-next, and that this Kconfig should
> depend on the same Kconfigs as QCOM_QMI_HELPERS depends on,
> I chose to have this Kconfig match the QCOM_QMI_HELPERS that is
> currently in linux-next.

Really?  I do this and then I get this build error on x86:

drivers/slimbus/qcom-ngd-ctrl.c: In function ‘of_qcom_slim_ngd_register’:
drivers/slimbus/qcom-ngd-ctrl.c:1333:63: warning: dereferencing ‘void *’ pointer
  data = of_match_node(qcom_slim_ngd_dt_match, parent->of_node)->data;
                                                               ^~
drivers/slimbus/qcom-ngd-ctrl.c:1333:63: error: request for member ‘data’ in something not a structure or union


So I can't take this, something else must be wrong here...

thanks,

greg k-h

Re: [PATCH v2] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[Srinivas Kandagatla]

On 07/11/18 13:59, Greg KH wrote:
> Really?  I do this and then I get this build error on x86:
> 
> drivers/slimbus/qcom-ngd-ctrl.c: In function ‘of_qcom_slim_ngd_register’:
> drivers/slimbus/qcom-ngd-ctrl.c:1333:63: warning: dereferencing ‘void *’ pointer
>    data = of_match_node(qcom_slim_ngd_dt_match, parent->of_node)->data;
>                                                                 ^~
> drivers/slimbus/qcom-ngd-ctrl.c:1333:63: error: request for member ‘data’ in something not a structure or union
> 
> 
> So I can't take this, something else must be wrong here...
That is fine!
Yes, there seems to be one more issue here, on non DT platforms 
of_match_node is set to be NULL, which is why we are seeing this error I 
guess!

I will fix this up, do some test and send both the fixes together.

thanks,
srini

Re: [PATCH] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[Bjorn Andersson]

On Mon 01 Oct 03:11 PDT 2018, Niklas Cassel wrote:

> QCOM_QMI_HELPERS is a hidden kconfig, so the proper usage is
> to select it, not depend upon it.
> 
> Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Regards,
Bjorn

> ---
>  drivers/slimbus/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/slimbus/Kconfig b/drivers/slimbus/Kconfig
> index 9d73ad806698..9cca2c3559f2 100644
> --- a/drivers/slimbus/Kconfig
> +++ b/drivers/slimbus/Kconfig
> @@ -22,8 +22,8 @@ config SLIM_QCOM_CTRL
>  
>  config SLIM_QCOM_NGD_CTRL
>  	tristate "Qualcomm SLIMbus Satellite Non-Generic Device Component"
> -	depends on QCOM_QMI_HELPERS
>  	depends on HAS_IOMEM && DMA_ENGINE
> +	select QCOM_QMI_HELPERS
>  	help
>  	  Select driver if Qualcomm's SLIMbus Satellite Non-Generic Device
>  	  Component is programmed using Linux kernel.
> -- 
> 2.17.1
> 

Re: [PATCH] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[Alex Elder]

On 10/01/2018 05:11 AM, Niklas Cassel wrote:
> QCOM_QMI_HELPERS is a hidden kconfig, so the proper usage is
> to select it, not depend upon it.
> 
> Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>

Looks good.

Reviewed-by: Alex Elder <elder@linaro.org>

> ---
>  drivers/slimbus/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/slimbus/Kconfig b/drivers/slimbus/Kconfig
> index 9d73ad806698..9cca2c3559f2 100644
> --- a/drivers/slimbus/Kconfig
> +++ b/drivers/slimbus/Kconfig
> @@ -22,8 +22,8 @@ config SLIM_QCOM_CTRL
>  
>  config SLIM_QCOM_NGD_CTRL
>  	tristate "Qualcomm SLIMbus Satellite Non-Generic Device Component"
> -	depends on QCOM_QMI_HELPERS
>  	depends on HAS_IOMEM && DMA_ENGINE
> +	select QCOM_QMI_HELPERS
>  	help
>  	  Select driver if Qualcomm's SLIMbus Satellite Non-Generic Device
>  	  Component is programmed using Linux kernel.
> 

[PATCH] slimbus: ngd: QCOM_QMI_HELPERS has to be selected

[Niklas Cassel]

QCOM_QMI_HELPERS is a hidden kconfig, so the proper usage is
to select it, not depend upon it.

Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
---
 drivers/slimbus/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/slimbus/Kconfig b/drivers/slimbus/Kconfig
index 9d73ad806698..9cca2c3559f2 100644
--- a/drivers/slimbus/Kconfig
+++ b/drivers/slimbus/Kconfig
@@ -22,8 +22,8 @@ config SLIM_QCOM_CTRL
 
 config SLIM_QCOM_NGD_CTRL
 	tristate "Qualcomm SLIMbus Satellite Non-Generic Device Component"
-	depends on QCOM_QMI_HELPERS
 	depends on HAS_IOMEM && DMA_ENGINE
+	select QCOM_QMI_HELPERS
 	help
 	  Select driver if Qualcomm's SLIMbus Satellite Non-Generic Device
 	  Component is programmed using Linux kernel.
-- 
2.17.1