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From: Felipe Balbi <balbi@ti.com>
To: Robert Baldyga <r.baldyga@samsung.com>
Cc: <balbi@ti.com>, <paulz@synopsys.com>,
	<gregkh@linuxfoundation.org>, <linux-usb@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] drivers: usb: dwc2: remove 'force' parameter from kill_all_requests()
Date: Tue, 27 Jan 2015 09:42:32 -0600	[thread overview]
Message-ID: <20150127154232.GE14623@saruman.tx.rr.com> (raw)
In-Reply-To: <1420450295-25818-3-git-send-email-r.baldyga@samsung.com>

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On Mon, Jan 05, 2015 at 10:31:35AM +0100, Robert Baldyga wrote:
> This patch fixes in simpler way the bug described in [1] and [2]. It
> looks like DWC2 is the only UDC driver that doesn't force usb requests
> to complete in ep_disable() function. This causes described problem,
> because we have no guarantee that all requests will be completed before
> unbind of usb function.
> 
> To fix this problem we force all requests of disabled endpoint to complete.
> Also currently running request is not handled. This allowed to simplify
> code of kill_all_requests() function, because 'force' parameter is always
> set to true, so we don't need it anymore.
> 
> In s3c_hsotg_rx_data() we change function used to print message when active
> request is NULL from dev_warn() to dev_dbg(), because such situation is
> harmless for driver and now it can take place during normal endpoint
> disabling.
> 
> [1] https://lkml.org/lkml/2014/12/9/283
> [2] https://lkml.org/lkml/2014/12/12/360
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>

this fails to apply:

checking file drivers/usb/dwc2/gadget.c
Hunk #1 succeeded at 2602 (offset 35 lines).
Hunk #2 FAILED at 2588.
Hunk #3 succeeded at 2645 (offset 36 lines).
Hunk #4 FAILED at 2924.
2 out of 4 hunks FAILED

-- 
balbi

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  reply	other threads:[~2015-01-27 15:42 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-05  9:31 [PATCH 0/2] usb: dwc2: fix the uncompleted requests problem Robert Baldyga
2015-01-05  9:31 ` [PATCH 1/2] Revert "usb: dwc2: gadget: kill requests with 'force' in s3c_hsotg_udc_stop()" Robert Baldyga
2015-01-05  9:31 ` [PATCH 2/2] drivers: usb: dwc2: remove 'force' parameter from kill_all_requests() Robert Baldyga
2015-01-27 15:42   ` Felipe Balbi [this message]
2015-01-28  7:18     ` Robert Baldyga
2015-01-28 14:08       ` Felipe Balbi
2015-01-20  6:12 ` [PATCH 0/2] usb: dwc2: fix the uncompleted requests problem Robert Baldyga

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