linux-kernel - Re: [PATCH/RFC 6/6] Treewide: Remove depends on HAS

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Message-ID: <87inay8k67.fsf@linux.intel.com>
Date:   Thu, 15 Feb 2018 15:19:28 +0200
From:   Felipe Balbi <balbi@...nel.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Christoph Hellwig <hch@....de>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        Arnd Bergmann <arnd@...db.de>, Mark Brown <broonie@...nel.org>,
        Richard Weinberger <richard@....at>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        iommu@...ts.linux-foundation.org, linux-usb@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: [PATCH/RFC 6/6] Treewide: Remove depends on HAS_DMA in case of platform dependency

Geert Uytterhoeven <geert@...ux-m68k.org> writes:

> 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.
>
> Notes:
>   - FSL_FMAN keeps its dependency on HAS_DMA, as it calls set_dma_ops(),
>     which does not exist if HAS_DMA=n (Do we need a dummy? The use of
>     set_dma_ops() in this driver is questionable),
>   - SND_SOC_LPASS_IPQ806X and SND_SOC_LPASS_PLATFORM loose their
>     dependency on HAS_DMA, as they are selected from
>     SND_SOC_APQ8016_SBC.
>
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>

for drivers/usb/gadget/:

Acked-by: Felipe Balbi <felipe.balbi@...ux.intel.com>

-- 
balbi

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