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

From: Qian Cai
Date: Thu Sep 19 2019 - 09:06:21 EST


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