Three architectures are using PG_dcache_clean in their asm/hugetlb.h, but relying on accident to include the asm/cacheflush.h which defines it. 1/3 arm: include asm/cacheflush.h in asm/hugetlb.h 2/3 arm64: include asm/cacheflush.h in asm/hugetlb.h 3/3 riscv: include asm/cacheflush.h in asm/hugetlb.h arch/arm/include/asm/hugetlb.h | 1 + arch/arm64/include/asm/hugetlb.h | 1 + arch/riscv/include/asm/hugetlb.h | 1 + 3 files changed, 3 insertions(+) Hugh
