Re: [PATCH v4 02/23] lib/scatterlist: add flag for indicating P2PDMA segments in an SGL
From: Christoph Hellwig
Date: Tue Dec 21 2021 - 04:02:58 EST
> + #
> + # The need for the scatterlist DMA bus address flag means PCI P2PDMA
> + # requires 64bit
> + #
> + select NEED_SG_DMA_BUS_ADDR_FLAG
> +config NEED_SG_DMA_BUS_ADDR_FLAG
> + depends on 64BIT
> + bool
depends does not work for symbols that are selected using select.