[PATCH] android: use "menuconfig" menu entry type for CONFIG_ANDROID

[PATCH] android: use "menuconfig" menu entry type for CONFIG_ANDROID

[Jan Engelhardt]

Allow disabling the Android driver section from within the Device
Drivers submenu, without having to descend into the Android drivers
submenu first.

Signed-off-by: Jan Engelhardt <jengelh@inai.de>
---
 drivers/android/Kconfig | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/android/Kconfig b/drivers/android/Kconfig
index 53b22e26266c..dc0a373ab879 100644
--- a/drivers/android/Kconfig
+++ b/drivers/android/Kconfig
@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-menu "Android"
-
-config ANDROID
+menuconfig ANDROID
 	bool "Android Drivers"
 	help
 	  Enable support for various drivers needed on the Android platform
@@ -55,5 +53,3 @@ config ANDROID_BINDER_IPC_SELFTEST
 	  alignments.
 
 endif # if ANDROID
-
-endmenu
-- 
2.34.1

Re: [PATCH] android: use "menuconfig" menu entry type for CONFIG_ANDROID

[Greg KH]

On Thu, Dec 30, 2021 at 03:50:02PM +0100, Jan Engelhardt wrote:
> Allow disabling the Android driver section from within the Device
> Drivers submenu, without having to descend into the Android drivers
> submenu first.
> 
> Signed-off-by: Jan Engelhardt <jengelh@inai.de>
> ---
>  drivers/android/Kconfig | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/android/Kconfig b/drivers/android/Kconfig
> index 53b22e26266c..dc0a373ab879 100644
> --- a/drivers/android/Kconfig
> +++ b/drivers/android/Kconfig
> @@ -1,7 +1,5 @@
>  # SPDX-License-Identifier: GPL-2.0
> -menu "Android"
> -
> -config ANDROID
> +menuconfig ANDROID
>  	bool "Android Drivers"
>  	help
>  	  Enable support for various drivers needed on the Android platform
> @@ -55,5 +53,3 @@ config ANDROID_BINDER_IPC_SELFTEST
>  	  alignments.
>  
>  endif # if ANDROID
> -
> -endmenu
> -- 
> 2.34.1
> 

But, when you do this, you loose these lines from the .config file,
resulting in this diff in the file:

--- .config.save	2021-12-30 17:54:49.327896243 +0100
+++ .config	2021-12-30 17:56:21.459819436 +0100
@@ -6477,17 +6477,11 @@
 CONFIG_RAS=y
 # CONFIG_RAS_CEC is not set
 # CONFIG_USB4 is not set
-
-#
-# Android
-#
 CONFIG_ANDROID=y
 CONFIG_ANDROID_BINDER_IPC=y
 CONFIG_ANDROID_BINDERFS=y
 CONFIG_ANDROID_BINDER_DEVICES="binder"
 CONFIG_ANDROID_BINDER_IPC_SELFTEST=y
-# end of Android
-
 # CONFIG_LIBNVDIMM is not set
 CONFIG_DAX=m
 CONFIG_NVMEM=y



Is that really a good idea?  What's the default these days?

Also, to be pedantic, this is a [v2] patch, right?  :)

I'll wait for the other Android driver maintainers to review this before
applying it, if they agree it is ok to do.

thanks,

greg k-h

Re: [PATCH] android: use "menuconfig" menu entry type for CONFIG_ANDROID

[Jan Engelhardt]

On Thursday 2021-12-30 17:58, Greg KH wrote:
>On Thu, Dec 30, 2021 at 03:50:02PM +0100, Jan Engelhardt wrote:
>> Allow disabling the Android driver section from within the Device
>> Drivers submenu, without having to descend into the Android drivers
>> submenu first.

>> -config ANDROID
>> +menuconfig ANDROID
>
>But, when you do this, you loose these lines from the .config file,
>resulting in this diff in the file:
>
>-#
>-# Android
>-#
> CONFIG_ANDROID=y
> CONFIG_ANDROID_BINDER_IPC=y
> CONFIG_ANDROID_BINDERFS=y
> CONFIG_ANDROID_BINDER_DEVICES="binder"
> CONFIG_ANDROID_BINDER_IPC_SELFTEST=y
>-# end of Android
>-
>
>Is that really a good idea?


Humour me - what information did "# Android" convey
that CONFIG_ANDROID= didn't already?


>What's the default these days?

There isn't really a default. When someone edits a Kconfig file to
add options for a new knob, they have to decide for one or the other.
At worst, they'll just copy from some other Kconfig file or the
documentation without making a conscious decision.

As you can see in the Device Drivers menu when running the `make 
menuconfig` command, it's a mix, but with a clear tendency to go with 
the menuconfig type. We used to have much less menuconfig-type options 
in the olden days of 2.4.x or so. I would therefore make the case that, 
on the whole, menuconfig-typed options are/should be used whenever 
possible.


  -*- PPS support  --->
      PTP clock support  --->
  [ ] Pin controllers  ----
  [ ] GPIO Support  ----
  < > Dallas's 1-wire support  ----
  [ ] Board level reset or power off  ----
  -*- Power supply class support  --->
  -*- Hardware Monitoring support  --->
  -*- Thermal drivers  --->
  [*] Watchdog Timer Support  --->
  < > Sonics Silicon Backplane support  ----
  < > Broadcom specific AMBA  ----
      Multifunction device drivers  --->
  [ ] Voltage and Current Regulator Support  ----
  < > Remote Controller support  ----
      CEC support  --->
  < > Multimedia support  ----
      Graphics support  --->
  <*> Sound card support  --->

There's just no GPIO, W1 or SSB in most contemporary desktop and
laptop x86s for example, and servers generally come without sound, so
it's nice to just hit {N DOWN}*.. quickly rather than having to
{ENTER N RIGHT ENTER DOWN}* to disable driver categories.


>Also, to be pedantic, this is a [v2] patch, right?  :)

Sorry, I have been working too long with sites like github et al
where diff -p0/p1 does not play a role (since one is sending commits
not diffs), nor version markers are needed (an update will simply be
appended to the end of a ticket/PR).

Re: [PATCH] android: use "menuconfig" menu entry type for CONFIG_ANDROID

[Greg KH]

On Thu, Dec 30, 2021 at 03:14:26PM +0100, Jan Engelhardt wrote:
> 
> On Thursday 2021-12-30 14:14, Greg KH wrote:
> >On Tue, Dec 28, 2021 at 09:06:34PM +0100, Jan Engelhardt wrote:
> >> Allow disabling the Android driver section from within the Device
> >> Drivers submenu, without having to descend into the Android drivers
> >> submenu first.
> >> 
> >> Signed-off-by: Jan Engelhardt <jengelh@inai.de>
> >> ---
> >>  drivers/android/Kconfig | 6 +-----
> >>  1 file changed, 1 insertion(+), 5 deletions(-)
> >> 
> >> diff --git drivers/android/Kconfig drivers/android/Kconfig
> >> index 53b22e26266c..dc0a373ab879 100644
> >> --- drivers/android/Kconfig
> >> +++ drivers/android/Kconfig
> >
> >You made this patch at one level too deep, it should look like:
> >
> >--- a/drivers/android/Kconfig
> >+++ b/drivers/android/Kconfig
> >
> >As-is, this will not apply.
> >
> >A normal git diff will output the correct patch file, as will 'git
> >format-patch', how did you create this?
> 
> Uh, I once again ran afoul of my default "diff.noprefix=true" in 
> ~/.gitconfig. Unless there is a magical barrier, `git am -p0`
> should momentarily work for you as I edit my ~/linux/.git/config to 
> set diff.noprefix=false.

I use the tool 'b4' to apply patches, which sucks it out of the public
archive and then uses 'git am' to apply the patch.  So I can't apply
your patch as-is, sorry.

Please resend.

thanks,

greg k-h

Re: [PATCH] android: use "menuconfig" menu entry type for CONFIG_ANDROID

[Jan Engelhardt]

On Thursday 2021-12-30 14:14, Greg KH wrote:
>On Tue, Dec 28, 2021 at 09:06:34PM +0100, Jan Engelhardt wrote:
>> Allow disabling the Android driver section from within the Device
>> Drivers submenu, without having to descend into the Android drivers
>> submenu first.
>> 
>> Signed-off-by: Jan Engelhardt <jengelh@inai.de>
>> ---
>>  drivers/android/Kconfig | 6 +-----
>>  1 file changed, 1 insertion(+), 5 deletions(-)
>> 
>> diff --git drivers/android/Kconfig drivers/android/Kconfig
>> index 53b22e26266c..dc0a373ab879 100644
>> --- drivers/android/Kconfig
>> +++ drivers/android/Kconfig
>
>You made this patch at one level too deep, it should look like:
>
>--- a/drivers/android/Kconfig
>+++ b/drivers/android/Kconfig
>
>As-is, this will not apply.
>
>A normal git diff will output the correct patch file, as will 'git
>format-patch', how did you create this?

Uh, I once again ran afoul of my default "diff.noprefix=true" in 
~/.gitconfig. Unless there is a magical barrier, `git am -p0`
should momentarily work for you as I edit my ~/linux/.git/config to 
set diff.noprefix=false.

(which of course breaks part of my workflow just like xkcd.com/1172 
predicts, but alas... -- I've already conveyed to the git list it's 
suboptimal for me,
https://lore.kernel.org/all/xmqqr1auvs7m.fsf@gitster.g/ )

Re: [PATCH] android: use "menuconfig" menu entry type for CONFIG_ANDROID

[Greg KH]

On Tue, Dec 28, 2021 at 09:06:34PM +0100, Jan Engelhardt wrote:
> Allow disabling the Android driver section from within the Device
> Drivers submenu, without having to descend into the Android drivers
> submenu first.
> 
> Signed-off-by: Jan Engelhardt <jengelh@inai.de>
> ---
>  drivers/android/Kconfig | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git drivers/android/Kconfig drivers/android/Kconfig
> index 53b22e26266c..dc0a373ab879 100644
> --- drivers/android/Kconfig
> +++ drivers/android/Kconfig

You made this patch at one level too deep, it should look like:

--- a/drivers/android/Kconfig
+++ b/drivers/android/Kconfig

As-is, this will not apply.

A normal git diff will output the correct patch file, as will 'git
format-patch', how did you create this?

thanks,

greg k-h

[PATCH] android: use "menuconfig" menu entry type for CONFIG_ANDROID

[Jan Engelhardt]

Allow disabling the Android driver section from within the Device
Drivers submenu, without having to descend into the Android drivers
submenu first.

Signed-off-by: Jan Engelhardt <jengelh@inai.de>
---
 drivers/android/Kconfig | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git drivers/android/Kconfig drivers/android/Kconfig
index 53b22e26266c..dc0a373ab879 100644
--- drivers/android/Kconfig
+++ drivers/android/Kconfig
@@ -1,7 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-menu "Android"
-
-config ANDROID
+menuconfig ANDROID
 	bool "Android Drivers"
 	help
 	  Enable support for various drivers needed on the Android platform
@@ -55,5 +53,3 @@ config ANDROID_BINDER_IPC_SELFTEST
 	  alignments.
 
 endif # if ANDROID
-
-endmenu
-- 
2.34.1