Re: [docs] [PATCH v2] ref-manual: document KERNEL_SPLIT_MODULES variable

["Antonin Godard" <antonin.godard@bootlin.com>]

On Wed Jun 18, 2025 at 2:14 PM CEST, Dixit Parmar via lists.yoctoproject.org wrote:
> Will fix the ref->term typo and the take your suggestion on rewording.
>
> There seem to be confusion related to the kernel package name, however I feel
> it was additional information. I shall remove the mention of the kernel
> package name (keep the variable reference only) for simplicity in next
> version.

Looking forward to it!

> Yes, you would be able to install "all" the kernel-modules without bothering
> about KERNEL_SPLIT_MODULES. The issue is having autoload .conf file being
> installed or not when KERNEL_MODULE_AUTOLOAD is having your modules listed to
> be autoloader. When KERNEL_SPLIT_MODULES = 0 the .conf files for driver
> autoload and probeconf is not getting generated.

This sounds like a bug to me, no? Why would someone expect setting
KERNEL_SPLIT_MODULES to 0 have the autoload files missing?

I ran a some tests. So when I set KERNEL_SPLIT_MODULES to 1, and
KERNEL_MODULE_AUTOLOAD to "xt_limit", a kernel-module-xt-limit.ipk package is
generated like so:

├── etc
│   └── modules-load.d
│       └── xt_limit.conf
└── lib
    └── modules
        └── 6.12.30-yocto-standard
            └── kernel
                └── net
                    └── netfilter
                        └── xt_limit.ko

When KERNEL_SPLIT_MODULES is set to 0, only one kernel-modules.ipk package is
generated, and does _not_ contain xt_limit.conf, but only xt_limit.ko. To me
this sounds like a bug, what do you think?

I would _not_ describe that behavior in the documentation for the
KERNEL_SPLIT_MODULES variables.

The fact that "kernel-modules" is still available when KERNEL_SPLIT_MODULES = 1
is simply because a "fake" kernel-modules.ipk package is generated, and depends
on the other kernel-module-* packages - so you can ignore my remark in my
previous message.

Thanks,
Antonin

-- 
Antonin Godard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com