"arm64: use asm-generic/dma-mapping.h" introduced a kbuild warning

Qian Cai
2019-09-19T13:06:21Z

The commit 5489c8e0cf03 ("arm64: use asm-generic/dma-mapping.h") introduced a
kbuild warning,

scripts/Makefile.asm-generic:25: redundant generic-y found in
arch/arm64/include/asm/Kbuild: dma-mapping.h