[Buildroot] [git commit] linux: Allow modprobe for out-of-tre modules

[Thomas Petazzoni]

Hello,

On Sat, 21 Mar 2020 21:43:31 +0100
Yann E. MORIN <yann.morin.1998 at free.fr> wrote:

> +# Run depmod in a target-finalize hook, to encompass modules installed by
> +# packages.
> +define LINUX_RUN_DEPMOD
> +	$(HOST_DIR)/sbin/depmod -a -b $(TARGET_DIR) $(LINUX_VERSION_PROBED)
> +endef
> +LINUX_TARGET_FINALIZE_HOOKS += LINUX_RUN_DEPMOD

I believe this breaks the build of minnowboard_max_defconfig:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/483712574

The kernel configuration of minnowboard_max_defconfig has
CONFIG_MODULES disabled, so there's no /lib/modules/4.19.8 folder,
causing this:

depmod: ERROR: could not open directory /builds/buildroot.org/buildroot/output/target/lib/modules/4.19.8: No such file or directory
depmod: FATAL: could not search modules: No such file or directory
Makefile:745: recipe for target 'target-finalize' failed

Do we need to grep into $(LINUX_DIR)/.config to check if
CONFIG_MODULES=y before calling depmod ?

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com