Enable squashfs support in 5.4-main

[martinl]

Hi,

first, I would like to thank you for maintaining the banana-pi r2 kernel and u-boot forks. It still took some work but setting things up were much easier than few years ago when I purchased BPI-R2.

Can you please enable squashfs in the 5.4-main branch, so lxc would work.

I added squashfs as module and recompiled to verify that lxc works. But I would prefer not to maintain another fork only for that.

with best regards,
Martin

[frank-w]

added with commit 95d7020 in 5.4-main (and in 5.8-main too)