Re: [PATCH] soc: qcom: qmi: add a prompt to QCOM_QMI_HELPERS

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On Fri 28 Sep 06:23 PDT 2018, Alex Elder wrote:

> On 09/28/2018 07:26 AM, Niklas Cassel wrote:
> > On Fri, Sep 28, 2018 at 06:41:11AM -0500, Alex Elder wrote:
> >> Was there something wrong with this patch?  I sent it a long time
> >> ago but it still applies cleanly.  I can re-send if you like.
> > 
> > Hello Alex,
> > 
> > This patch does not apply on top of
> > https://git.kernel.org/pub/scm/linux/kernel/git/agross/linux.git/log/?h=for-next
> 
> Sorry, I sent this before I tracked down where Andy's for-next
> tree was.  It applied OK to linus/master.
> 
> > When you don't specify a string for a Kconfig, then you won't be able to
> > select it via menuconfig, only through other Kconfigs, e.g.:
> > $ git grep QCOM_QMI_HELPERS
> > drivers/remoteproc/Kconfig:     select QCOM_QMI_HELPERS
> > 
> > What Kconfig is it that needs QCOM_QMI_HELPERS?
> 
> IPA, which is not yet merged.
> 
> The entry in "drivers/soc/qcom/Kconfig" for this option includes
> help text, so I presume it was an oversight not to include a
> string (prompt).  It is the only non-trivial entry in that file
> that does not include one.  Why should this entry not be listed
> in menus?
> 
> > Why do you need to make is selectable via menuconfig?

I made it this way because I don't see a reason for anyone to ever
select this config option if there isn't a client available - and
clients that "depends on" this simply forces the developer to find the
QMI helpers in menuconfig and enable it manually.

> > Isn't it sufficient to add a "select QCOM_QMI_HELPERS" to that Kconfig?
> 
> I have CONFIG_IPA dependent on CONFIG_QCOM_QMI_HELPERS.  I could
> change that to select it instead but I still think this entry
> should be changed.
> 

Why do you say it needs to change? I tested this by just adding a
"select QCOM_QMI_HELPERS" in my client drivers.

> I'll mention that SLIM_QCOM_NGD_CTRL in drivers/slimbus/Kconfig
> also depends on--rather than selects--QCOM_QMI_HELPERS.
> 

That's wrong.

Regards,
Bjorn

> 					-Alex
> 
> > 
> > Kind regards,
> > Niklas
> > 
> >>
> >> 					-Alex
> >>
> >> On 04/27/2018 09:03 AM, Alex Elder wrote:
> >>> Add a prompt to the "tristate" attribute in the Kconfig file in
> >>> which QCOM_QMI_HELPERS is defined; I find it doesn't get selected
> >>> without it.
> >>>
> >>> Signed-off-by: Alex Elder <elder@xxxxxxxxxx>
> >>> ---
> >>>  drivers/soc/qcom/Kconfig | 2 +-
> >>>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>>
> >>> diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
> >>> index 5c4535b545cc..81a501765cd9 100644
> >>> --- a/drivers/soc/qcom/Kconfig
> >>> +++ b/drivers/soc/qcom/Kconfig
> >>> @@ -36,7 +36,7 @@ config QCOM_PM
> >>>  	  low power modes.
> >>>  
> >>>  config QCOM_QMI_HELPERS
> >>> -	tristate
> >>> +	tristate "Qualcomm QMI Helpers"
> >>>  	depends on ARCH_QCOM && NET
> >>>  	help
> >>>  	  Helper library for handling QMI encoded messages.  QMI encoded
> >>>
> >>
> 



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