linux-kernel - Re: [PATCH 3/6] usb: add a HCD_DMA flag instead of guestimating DMA capabilities

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Date:   Mon, 12 Aug 2019 13:57:26 +0200
From:   Christoph Hellwig <hch@....de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc:     linux-arch@...r.kernel.org, Olav Kongas <ok@...ecdesign.ee>,
        Gavin Li <git@...gavinli.com>, linuxppc-dev@...ts.ozlabs.org,
        Mathias Nyman <mathias.nyman@...el.com>,
        Geoff Levand <geoff@...radead.org>,
        Fabio Estevam <festevam@...il.com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        linux-usb@...r.kernel.org, Michal Simek <michal.simek@...inx.com>,
        linux-kernel@...r.kernel.org, Tony Prisk <linux@...sktech.co.nz>,
        iommu@...ts.linux-foundation.org,
        Alan Stern <stern@...land.harvard.edu>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Minas Harutyunyan <hminas@...opsys.com>,
        Shawn Guo <shawnguo@...nel.org>, Bin Liu <b-liu@...com>,
        linux-arm-kernel@...ts.infradead.org,
        Laurentiu Tudor <laurentiu.tudor@....com>
Subject: Re: [PATCH 3/6] usb: add a HCD_DMA flag instead of guestimating
 DMA capabilities

> diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
> index 576f7d79ad4e..9d17e0695e35 100644
> --- a/drivers/usb/host/ehci-ppc-of.c
> +++ b/drivers/usb/host/ehci-ppc-of.c
> @@ -31,7 +31,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = {
>  	 * generic hardware linkage
>  	 */
>  	.irq			= ehci_irq,
> -	.flags			= HCD_MEMORY | HCD_USB2 | HCD_BH,
> +	.flags			= HCD_MEMORY | HC_DMA | HCD_USB2 | HCD_BH,

FYI, the kbuild bot found a little typo here, so even for the unlikely
case that the series is otherwise perfect I'll have to resend it at
least once.