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Message-ID: <Pine.LNX.4.44L0.1010191056470.1786-100000@iolanthe.rowland.org>
Date: Tue, 19 Oct 2010 11:08:17 -0400 (EDT)
From: Alan Stern <stern@...land.harvard.edu>
To: Tatyana Brokhman <tlinder@...eaurora.org>
cc: USB list <linux-usb@...r.kernel.org>,
<linux-arm-msm@...r.kernel.org>,
David Brownell <dbrownell@...rs.sourceforge.net>,
Greg Kroah-Hartman <gregkh@...e.de>,
Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] usb: dummy_hcd code simplification
On Tue, 19 Oct 2010, Tatyana Brokhman wrote:
> Take handling of the control requests out from dummy_timer to a different
> function.
>
> Signed-off-by: Tatyana Brokhman <tlinder@...eaurora.org>
> ---
> drivers/usb/gadget/dummy_hcd.c | 250 +++++++++++++++++++++-------------------
> 1 files changed, 134 insertions(+), 116 deletions(-)
>
> diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
> index dc65462..ff93fea 100644
> --- a/drivers/usb/gadget/dummy_hcd.c
> +++ b/drivers/usb/gadget/dummy_hcd.c
> @@ -1195,6 +1195,138 @@ static struct dummy_ep *find_endpoint (struct dummy *dum, u8 address)
> #define Ep_Request (USB_TYPE_STANDARD | USB_RECIP_ENDPOINT)
> #define Ep_InRequest (Ep_Request | USB_DIR_IN)
>
> +
> +/**
> + * handle_control_request() - handles all control transferes
> + *
There should not be a blank line here.
> + * @dum - pointer to dummy (the_controller)
> + * @urb - the urb request to handle
Where's the line for "setup"?
> + * @status - pointer to request handling status
In each of these there should be a ':' following the variable name,
not a space and a '-'. Honestly, I can't see why you have so much
trouble copying the format of existing kerneldoc entries.
> + *
> + * Return 0 - if the request was handled
> + * 1 - if the request wasn't handles
> + * error code on error
> + */
> +static int handle_control_request(struct dummy *dum, struct urb *urb,
> + struct usb_ctrlrequest setup,
Don't pass "setup" by value! Pass it by reference, i.e., pass a
pointer to the "setup" variable in dummy_timer().
> + int *status)
> +{
The rest of this is okay.
Alan Stern
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