linux.git/scripts/kconfig, branch v5.8-rc2

kconfig: announce removal of 'kvmconfig' and 'xenconfig' shorthands

2020-05-25T15:02:32+00:00

kvmconfig' is a shorthand for kvm_guest.config to save 7 character typing.

xenconfig' is a shorthand for xen.config to save 1 character typing.

There is nothing more than that.

There are more files in kernel/configs/, so it is not maintainable
to wire-up every config fragment to the Kconfig Makefile. Hence,
we should not do this at all.

These will be removed after Linux 5.10. Meanwhile, the following
warning message will be displayed if they are used.

WARNING: 'make kvmconfig' will be removed after Linux 5.10
         Please use 'make kvm_guest.config' instead.

Signed-off-by: Masahiro Yamada

streamline_config.pl: add LMC_KEEP to preserve some kconfigs

2020-05-13T01:33:54+00:00

Sometimes it is useful to preserve batches of configs when making
localmodconfig. For example, I usually don't want any usb and fs
modules to be disabled. Now we can do it by:

 $ make LMC_KEEP="drivers/usb:fs" localmodconfig

Signed-off-by: Changbin Du 
Acked-by: Steven Rostedt (VMware) 
Signed-off-by: Masahiro Yamada

kconfig: allow only 'config', 'comment', and 'if' inside 'choice'

2020-05-12T04:28:30+00:00

The code block surrounded by 'if' ... 'endif' is reduced into if_stmt,
which is accepted in the 'choice' context. Therefore, you can write any
statements within a choice block by wrapping 'if y' ... 'end'.

For example, you can create a menu inside a choice, like follows:

---------------->8----------------
  choice
          prompt "choice"

  config A
          bool "A"

  config B
          bool "B"

  if y

  menu "strange menu"

  config C
          bool "C"

  endmenu

  endif

  endchoice
---------------->8----------------

I want to change such a weird structure into a syntax error.

In fact, the USB gadget Kconfig had used nested 'choice' for no good
reason until commit df8df5e4bc37 ("usb: get rid of 'choice' for
legacy gadget drivers") killed it.

I think the 'source' inside 'choice' is on the fence. It is at least
gramatically sensible as long as the included file contains only
bool/tristate configs. However, it makes the code unreadable, and people
tend to forget the fact that the file is included from the choice
block. Commit 10e5e6c24963 ("usb: gadget: move choice ... endchoice to
legacy/Kconfig") got rid of the only usecase.

Going forward, you can only use 'config', 'comment', and 'if' inside
'choice'. This also recursively applies to 'if' blocks inside 'choice'.

Signed-off-by: Masahiro Yamada

kconfig: tests: remove randconfig test for choice in choice

2020-05-12T04:28:30+00:00

Nesting choice statements does not make any sense.

Commit df8df5e4bc37 ("usb: get rid of 'choice' for legacy gadget
drivers") got rid of the only usecase.

I will turn it into a syntax error. Remove the test in advance.

Signed-off-by: Masahiro Yamada

kconfig: do not assign a variable in the return statement

2020-05-12T04:28:30+00:00

I am not a big fan of doing assignment in a return statement.
Split it into two lines.

Signed-off-by: Masahiro Yamada

kconfig: do not use OR-assignment for zero-cleared structure

2020-05-12T04:28:30+00:00

The simple assignment is enough because memset() three lines above
has zero-cleared the structure.

Signed-off-by: Masahiro Yamada

kconfig: qconf: Fix a few alignment issues

2020-04-08T15:13:45+00:00

There are a few items with wrong alignments. Solve them.

Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Masahiro Yamada

kconfig: qconf: remove some old bogus TODOs

2020-04-08T15:13:45+00:00

The items described on those TODOs are already solved. So,
remove the comments.

Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Masahiro Yamada

kconfig: qconf: fix support for the split view mode

2020-04-08T15:13:45+00:00

At least on my tests (building against Qt5.13), it seems to
me that, since Kernel 3.14, the split view mode is broken.

Maybe it was not a top priority during the conversion time.

Anyway, this patch changes the logic in order to properly
support the split view mode and the single view mode.

Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Masahiro Yamada

kconfig: qconf: fix the content of the main widget

2020-04-08T15:13:45+00:00

The port to Qt5 tried to preserve the same way as it used
to work with Qt3 and Qt4. However, at least with newer
versions of Qt5 (5.13), this doesn't work properly.

Change the schema by adding a vertical layout, in order
for it to start working properly again.

Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Masahiro Yamada