Building 4.19-rc1 kernel with CONFIG_KERNEL_XZ=y fails with this error:
BOOTCC arch/powerpc/boot/decompress.o
In file included from arch/powerpc/boot/../../../lib/decompress_unxz.c:233,
from arch/powerpc/boot/decompress.c:42:
arch/powerpc/boot/../../../lib/xz/xz_crc32.c:18:10: fatal error:
linux/crc32poly.h: No such file or directory
#include <linux/crc32poly.h>
^~~~~~~~~~~~~~~~~~~
This is caused by commit faa16bc404d7 ("lib: Use existing define with
polynomial") which added include of <linux/crc32poly.h>; when compiling
arch/powerpc/boot/decompress.c, the include/ directory is not searched
so that the header file is not found.
The solution is probably adding -I directive to some place in
arch/powerpc/boot/Makefile but I don't dare to guess where.
Michal Kubecek
