Re: [PATCH] usb: gadget: f_fs: report error if excess data received

[Michal Nazarewicz]

> Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> writes:
>> The point is that you don't know whether the host sent more data than
>> expected.  All you know is that the host sent more data than the user
>> asked the kernel for -- but maybe the user didn't ask for all the
>> data that he expected.  Maybe the user wanted to retrieve the full
>> set of data using two read() system calls.

On Mon, May 16 2016, Felipe Balbi wrote:
> right, but that just means we need to buffer the data instead of bailing
> out of the first read() completely.

Correct.

I have a ~4h bus ride ahead of me so Iâll try to implement it.  If you
donât hear from me by the end of the day, there probably wasnât enough
space/comfort in the bus to use a laptop.

-- 
Best regards
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