linux-kernel - Re: [PATCH v2 3/5] usb: gadget: Add NO

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Date:   Fri, 16 Mar 2018 15:34:50 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Christoph Hellwig <hch@....de>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        Felipe Balbi <balbi@...nel.org>,
        "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        iommu@...ts.linux-foundation.org, linux-usb@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/5] usb: gadget: Add NO_DMA dummies for DMA mapping
 API

On Fri, Mar 16, 2018 at 02:25:42PM +0100, Geert Uytterhoeven wrote:
> Add dummies for usb_gadget_{,un}map_request{,_by_dev}(), to allow
> compile-testing if NO_DMA=y.
> 
> This prevents the following from showing up later:
> 
>     ERROR: "usb_gadget_unmap_request_by_dev" [drivers/usb/renesas_usbhs/renesas_usbhs.ko] undefined!
>     ERROR: "usb_gadget_map_request_by_dev" [drivers/usb/renesas_usbhs/renesas_usbhs.ko] undefined!
>     ERROR: "usb_gadget_map_request" [drivers/usb/mtu3/mtu3.ko] undefined!
>     ERROR: "usb_gadget_unmap_request" [drivers/usb/mtu3/mtu3.ko] undefined!
>     ERROR: "usb_gadget_map_request" [drivers/usb/gadget/udc/renesas_usb3.ko] undefined!
>     ERROR: "usb_gadget_unmap_request" [drivers/usb/gadget/udc/renesas_usb3.ko] undefined!
> 
> 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: Felipe Balbi <felipe.balbi@...ux.intel.com>

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>