2:52 p.m.
On Mon, Aug 16, 2021 at 09:04:21AM +0800, Ming Lei wrote:
But the above symbol is exported via EXPORT_SYMBOL_GPL(), in current
kernel tree, we usually keep such exported symbol as global, or is there
some change in kernel coding style recently?
This is about prototypes. You need to include group_cpus.h in
group_cpus.c so that the prototype is visible at the implementation site.