linux-kernel - Re: [PATCH 3/5] usb: dwc3; ep0: Modify _dwc3_ep0_start_trans

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Message-ID: <55787E24.7030608@cogentembedded.com>
Date:	Wed, 10 Jun 2015 21:12:52 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Kishon Vijay Abraham I <kishon@...com>, balbi@...com,
	linux-usb@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org
CC:	nsekhar@...com, gregkh@...uxfoundation.org
Subject: Re: [PATCH 3/5] usb: dwc3; ep0: Modify _dwc3_ep0_start_trans_ API
 to take 'chain' parameter

Hello.

On 06/10/2015 12:18 PM, Kishon Vijay Abraham I wrote:

> No functional change. Added a new parameter in _dwc3_ep0_start_trans_ to
> indicate whether the TRB is a chained TRB or last TRB. This is in
> preparation for adding chained TRB support for ep0.

> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
> ---
>   drivers/usb/dwc3/ep0.c |   15 ++++++++-------
>   1 file changed, 8 insertions(+), 7 deletions(-)

> diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
> index 4998074..d1a2be1 100644
> --- a/drivers/usb/dwc3/ep0.c
> +++ b/drivers/usb/dwc3/ep0.c
> @@ -56,7 +56,7 @@ static const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
>   }
>
>   static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
> -		u32 len, u32 type)
> +		u32 len, u32 type, unsigned chain)

    Why not *bool*? You're passing boolean values anyway...

[...]

WBR, Sergei

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