kernel modules

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

Hi,
When I build kernel modules, the command line used as blow:
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- O=…/kernel_output tegra_defconfig
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- O=…/kernel_output -j2
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- O=…/kernel_output modules_install INSTALL_MOD_PATH=…/kernel_output/modules_install_path

But the ko modules I build are bigger than nvidia provided. Such as mac80211.ko, mine is 24MB, and nvidia’s is only 1.2MB.I don’t know what happend and what shoud I do?

2

hello 499377441,

may I have confirmation that you had check documentation for prerequisites,
for example, Building the NVIDIA Kernel, and Preparing to Build External Kernel Modules.
thanks

3

hello JerryChang,
Yes, I followed its instructions to build my kernel.

4

hello 499377441,

please include the commands to strip unnecessary symbols from kernel modules.
you might also refer to Topic 1055518 for reference.
thanks

5

hello JerryChang,
OK, thank you so much!

6

See also:
https://devtalk.nvidia.com/default/topic/1066506/jetson-tx2/why-the-built-modules-based-on-nvidia-official-kernel-source-/post/5401303/#5401303