[gentoo-dev] [PATCH 2/4] profiles/use.desc: create USE=modules-sign global USE flag

[Ionen Wolkens <ionen@gentoo.org>]

Similarly to gyakovlev's proposition for signing back in 2018 (with
a module-sign IUSE), linux-mod-r1.eclass will make use of this to
enable/disable signing and it would be inconvenient if consumers
had to define it.

An alternative could be to automagic enable when the kernel has
"sign by default" a bit like compression is handled -- albeit this
can sometime need more configuration and may be unexpected (i.e.
permissions for keys, if keys were moved to a different locations,
passphrases, and dist-kernels unsurprisingly don't install the
private key and would result in failure out-of-the-box).

Having a USE also makes it more obvious that support exists,
and attempting to enable will give bit of explanations if anything
is amiss.

Name-wise, debated between this and 'sign-modules' but fwiw former
sorts better with the already existing 'modules'.

Signed-off-by: Ionen Wolkens <ionen@gentoo.org>
---
 profiles/use.desc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/profiles/use.desc b/profiles/use.desc
index aa5d16dd652e..bd8cb7031ab8 100644
--- a/profiles/use.desc
+++ b/profiles/use.desc
@@ -192,6 +192,7 @@ mms - Support for Microsoft Media Server (MMS) streams
 mng - Add support for libmng (MNG images)
 modplug - Add libmodplug support for playing SoundTracker-style music files
 modules - Build the kernel modules
+modules-sign - Cryptographically sign installed kernel modules (requires CONFIG_MODULE_SIG=y in the kernel)
 mono - Build Mono bindings to support dotnet type stuff
 motif - Add support for the Motif toolkit
 mp3 - Add support for reading mp3 files
-- 
2.40.1