Commit da323d46 authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

dma-direct: add dependencies to CONFIG_DMA_GLOBAL_POOL 



CONFIG_DMA_GLOBAL_POOL can't be combined with other DMA coherent
allocators.  Add dependencies to Kconfig to document this, and make
kconfig complain about unmet dependencies if someone tries.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarRobin Murphy <robin.murphy@arm.com>
Reviewed-by: default avatarLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: default avatarGreg Ungerer <gerg@linux-m68k.org>
Tested-by: default avatarGreg Ungerer <gerg@linux-m68k.org>
parent ce55c22e

kernel/dma/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -135,6 +135,8 @@ config DMA_COHERENT_POOL 


config DMA_GLOBAL_POOL

	select DMA_DECLARE_COHERENT

	depends on !ARCH_HAS_DMA_SET_UNCACHED

	depends on !DMA_DIRECT_REMAP

	bool



config DMA_DIRECT_REMAP