linux-kernel - Re: [PATCH v6 1/4] usb: gadget: udc: core: Introduce check

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <f5d04121-fd8c-9644-59c0-0ee8aa132de0@codeaurora.org>
Date:   Mon, 25 Jan 2021 17:01:46 -0800
From:   Wesley Cheng <wcheng@...eaurora.org>
To:     Jack Pham <jackp@...eaurora.org>
Cc:     balbi@...nel.org, gregkh@...uxfoundation.org, robh+dt@...nel.org,
        agross@...nel.org, bjorn.andersson@...aro.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        peter.chen@....com
Subject: Re: [PATCH v6 1/4] usb: gadget: udc: core: Introduce check_config to
 verify USB configuration



On 1/21/2021 9:17 PM, Jack Pham wrote:
> Hi Wesley,
> 
> On Thu, Jan 21, 2021 at 08:01:37PM -0800, Wesley Cheng wrote:
>> Some UDCs may have constraints on how many high bandwidth endpoints it can
>> support in a certain configuration.  This API allows for the composite
>> driver to pass down the total number of endpoints to the UDC so it can verify
>> it has the required resources to support the configuration.
>>
>> Signed-off-by: Wesley Cheng <wcheng@...eaurora.org>
>> ---
>>  drivers/usb/gadget/udc/core.c | 9 +++++++++
>>  include/linux/usb/gadget.h    | 2 ++
>>  2 files changed, 11 insertions(+)
>>
>> diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
>> index 4173acd..469962f 100644
>> --- a/drivers/usb/gadget/udc/core.c
>> +++ b/drivers/usb/gadget/udc/core.c
>> @@ -1003,6 +1003,15 @@ int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
>>  }
>>  EXPORT_SYMBOL_GPL(usb_gadget_ep_match_desc);
>>  
>> +int usb_gadget_check_config(struct usb_gadget *gadget, unsigned long ep_map)
> 
> You should probably add a kernel-doc for this function.
> 
> Jack
> 
Hi Jack,

Sure, I'll update a bit more about how this API can be used.

Thanks
Wesley Cheng

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project