linux-kernel - Re: [PATCH v2 17/21] scsi: hisi_sas: Remove depends on HAS

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Date:   Fri, 16 Mar 2018 14:36:46 +0000
From:   John Garry <john.garry@...wei.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Christoph Hellwig <hch@....de>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Mark Brown" <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>, Tejun Heo <tj@...nel.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Stefan Richter <stefanr@...6.in-berlin.de>,
        Alan Tull <atull@...nel.org>, Moritz Fischer <mdf@...nel.org>,
        Wolfram Sang <wsa@...-dreams.de>,
        "Jonathan Cameron" <jic23@...nel.org>,
        Joerg Roedel <joro@...tes.org>,
        Matias Bjorling <mb@...htnvm.io>,
        Jassi Brar <jassisinghbrar@...il.com>,
        "Mauro Carvalho Chehab" <mchehab@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "David Woodhouse" <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Richard Weinberger <richard@....at>,
        Kalle Valo <kvalo@...eaurora.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        "Bjorn Andersson" <bjorn.andersson@...aro.org>,
        Eric Anholt <eric@...olt.net>,
        "Stefan Wahren" <stefan.wahren@...e.com>
CC:     <alsa-devel@...a-project.org>, <linux-iio@...r.kernel.org>,
        <linux-fpga@...r.kernel.org>, <linux-remoteproc@...r.kernel.org>,
        <linux-fbdev@...r.kernel.org>, <linux-ide@...r.kernel.org>,
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        <devel@...verdev.osuosl.org>, <linux-scsi@...r.kernel.org>,
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        <linux-usb@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-spi@...r.kernel.org>,
        <iommu@...ts.linux-foundation.org>, <linux-crypto@...r.kernel.org>
Subject: Re: [PATCH v2 17/21] scsi: hisi_sas: Remove depends on HAS_DMA in
 case of platform dependency

On 16/03/2018 13:51, Geert Uytterhoeven wrote:
> Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
> symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
> In most cases this other symbol is an architecture or platform specific
> symbol, or PCI.
>
> Generic symbols and drivers without platform dependencies keep their
> dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
> cannot work anyway.
>
> This simplifies the dependencies, and allows to improve compile-testing.
>
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> Reviewed-by: Mark Brown <broonie@...nel.org>
> Acked-by: Robin Murphy <robin.murphy@....com>

Acked-by: John Garry <john.garry@...wei.com>