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From: Christoph Hellwig <hch@lst.de>
To: Logan Gunthorpe <logang@deltatee.com>
Cc: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org,
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Subject: Re: [PATCH v4 02/23] lib/scatterlist: add flag for indicating
 P2PDMA segments in an SGL
Message-ID: <20211221090248.GB7949@lst.de>
References: <20211117215410.3695-1-logang@deltatee.com> <20211117215410.3695-3-logang@deltatee.com>
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> +	#
> +	# 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.