About the code style requirement

[Qu Wenruo]

Hi,

I'm recently considering to cross-port btrfs-progs/U-boot btrfs code to 
GRUB, so that we can have more unified code base, with more features 
(and of-course bug fixes)

But the first blockage I'm hitting is the code style.

It looks like GRUB is using its own code style which is not found in 
kernel/btrfs-progs/U-boot.

But I didn't find where the code style doc is, so is it a hard 
requirement to follow the existing style even we're cross-porting most 
code unmodified from other projects?

Thanks,
Qu