linux-kernel - Re: [PATCH v2] um: Rewrite host RNG driver.

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Message-ID: <1408538854.76578.1567112607283.JavaMail.zimbra@nod.at>
Date:   Thu, 29 Aug 2019 23:03:27 +0200 (CEST)
From:   Richard Weinberger <richard@....at>
To:     Dark <dark@...atile.bz>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        linux-um <linux-um@...ts.infradead.org>,
        Richard Weinberger <richard.weinberger@...il.com>,
        Johannes Berg <johannes@...solutions.net>
Subject: Re: [PATCH v2] um: Rewrite host RNG driver.

----- Ursprüngliche Mail -----
>> ----- Ursprüngliche Mail -----
>> > Von: "Dark" <dark@...atile.bz>
>> > +	// Returning -EAGAIN to userspace is not nice.
>> > +	if (err == -EAGAIN)
>> > +		return 0;
>> 
>> Hmm, doesn't this result in a short read?
>> The current drives sets the calling task to sleep and wakes
>> it up as soon data is available again. I'd assumes ti have the
>> same behavior for the new driver.
>> 
>> Thanks,
>> //richard
> 
> Clearly this patch needs a lot more work before I submit it. I'll
> take some time to polish it up and then resubmit it if that's fine.

No need to worry, take your time. Thanks a lot for working on this driver!

Thanks,
//richard