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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-aspeed@lists.ozlabs.org
Subject: [PATCH v2 3/4] usb: aspeed-vhub: fix ep0 OUT ack received wrong length issue
Date: Tue, 30 Nov 2021 12:47:29 +0100	[thread overview]
Message-ID: <YaYPUfFTNkh+zpqz@kroah.com> (raw)
In-Reply-To: <20211130104256.3106797-4-neal_liu@aspeedtech.com>

On Tue, Nov 30, 2021 at 06:42:55PM +0800, Neal Liu wrote:
> If multiple devices in vhub are enumerated simultaneously, ep0 OUT
> ack might received wrong data length. Using expected data length
> instead.
> 
> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
> ---
>  drivers/usb/gadget/udc/aspeed-vhub/ep0.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/usb/gadget/udc/aspeed-vhub/ep0.c b/drivers/usb/gadget/udc/aspeed-vhub/ep0.c
> index 74ea36c19b1e..bea9cbb191a2 100644
> --- a/drivers/usb/gadget/udc/aspeed-vhub/ep0.c
> +++ b/drivers/usb/gadget/udc/aspeed-vhub/ep0.c
> @@ -251,6 +251,13 @@ static void ast_vhub_ep0_do_receive(struct ast_vhub_ep *ep, struct ast_vhub_req
>  		len = remain;
>  		rc = -EOVERFLOW;
>  	}
> +
> +	/* HW return wrong data len */

Please spell out "Hardware"?

thanks,

greg k-h

  reply	other threads:[~2021-11-30 11:47 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-30 10:42 [PATCH v2 0/4] Refactor Aspeed USB vhub driver Neal Liu
2021-11-30 10:42 ` [PATCH v2 1/4] usb: aspeed-vhub: add qualifier descriptor Neal Liu
2021-11-30 11:45   ` Greg Kroah-Hartman
2021-12-01  5:43     ` Neal Liu
2021-12-01  6:18       ` Greg Kroah-Hartman
2021-12-01  6:31         ` Neal Liu
2021-11-30 10:42 ` [PATCH v2 2/4] usb: aspeed-vhub: support auto remote wakeup feature Neal Liu
2021-11-30 10:42 ` [PATCH v2 3/4] usb: aspeed-vhub: fix ep0 OUT ack received wrong length issue Neal Liu
2021-11-30 11:47   ` Greg Kroah-Hartman [this message]
2021-12-01  2:17     ` Neal Liu
2021-11-30 10:42 ` [PATCH v2 4/4] usb: aspeed-vhub: support test mode feature Neal Liu
2021-11-30 11:47   ` Greg Kroah-Hartman
2021-12-01  3:36     ` Neal Liu
  -- strict thread matches above, loose matches on Subject: below --
2021-11-30 11:38 [PATCH v2 0/4] Refactor Aspeed USB vhub driver Neal Liu
2021-11-30 11:38 ` [PATCH v2 3/4] usb: aspeed-vhub: fix ep0 OUT ack received wrong length issue Neal Liu

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