On Mon, May 13, 2019 at 01:50:19PM +0200, Dmitry Vyukov wrote: > > We did have some bugs in the past (~1-2 y/ago) but AFAIK they are all > > fixed now. These days I build most of my kernels with a bi-endian 64-bit > > toolchain, and switching endian without running `make clean` also works. > > For the record, yes, it turn out to be a problem in our code (a latent > bug). We actually used host (x86) gcc to build as-if ppc code that can > run on the host, so it defined neither LE no BE macros. It just > happened to work in the past :)
So Nick was right and these checks actually are useful..