quoted

About endian: I have not considered endian so far, as this driver is used
only for x86 and arm64. Is that ok?

In most cases, there is little you need to do, so long as you use the
correct methods to access the bus. PCI registers are always little
endian for example, so easy to handle. Memory mapped structures are
where you need to be careful, your receive and transmit descriptors.
You need to use the correct __le32 or __be32 annotation, and then
sparse will warn you if you access them without the needed conversion.

Thanks! Now I get those warnings. I'll fix them.

Gerhard