linux-kernel - Re: [PATCH 2/2] scripts: add kconfig lookup script

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Date:   Thu, 3 Aug 2023 06:14:36 -0400
From:   Brian Masney <bmasney@...hat.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH 2/2] scripts: add kconfig lookup script

On Thu, Aug 03, 2023 at 03:23:16PM +0900, Masahiro Yamada wrote:
> Everyone tends to have their own utility scripts
> on their machines.
> 
> I think this patch set falls into that category
> as "create a wrapper script of grep" is what everyone
> does to reduce typing.
> 
> 
> 
> 
> FWIW, I have the following scripts in my ~/bin directory.
> 
> 
> 
> $ cat ~/bin/kgrep
> #!/bin/sh
> 
> exec find . -name .repo -prune -o -name .git -prune -o -type f \
> \( -name 'Kconfig*' -o -name 'Config.in' \) \
> -print0 | xargs -0 grep --color -n "$@"
> 
> 
> $ cat ~/bin/mgrep
> #!/bin/sh
> 
> exec find . -name .repo -prune -o -name .git -prune -o -type f \
> \( -name 'Makefile*' -o -name 'Kbuild*' -o -name "*.mk" \) \
> -print0 | xargs -0 grep --color -n "$@"
> 
> 
> 
> 
> masahiro@zoe:~/ref/linux(master)$ kgrep -A5 TSL2772
> ./drivers/iio/light/Kconfig:564:config TSL2772
> ./drivers/iio/light/Kconfig-565- tristate "TAOS TSL/TMD2x71 and
> TSL/TMD2x72 Family of light and proximity sensors"
> ./drivers/iio/light/Kconfig-566- depends on I2C
> ./drivers/iio/light/Kconfig-567- help
> ./drivers/iio/light/Kconfig-568-   Support for: tsl2571, tsl2671,
> tmd2671, tsl2771, tmd2771, tsl2572, tsl2672,
> ./drivers/iio/light/Kconfig-569-   tmd2672, tsl2772, tmd2772 devices.
> 
> masahiro@zoe:~/ref/linux(master)$ mgrep efivarfs.o
> ./fs/efivarfs/Makefile:6:obj-$(CONFIG_EFIVAR_FS) += efivarfs.o
> ./fs/efivarfs/Makefile:8:efivarfs-objs := inode.o file.o super.o vars.o
> 
> 
> 
> That's my local way to satisfy my demand.
> I do not intend to force my way or merge it in the upstream.

OK, fair enough.

Those are useful little utilities and simpler than what I posted. If
something like these had been in the scripts/ directory, then I
wouldn't have spent the time to write yet another script that does
basically the same thing. I get what you are saying, however having
a script to lookup a Kconfig by name or module will be useful to other
people.

Brian