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From: Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
To: Ard Biesheuvel <ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: "<linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>"
	<linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Sergey Senozhatsky
	<sergey.senozhatsky.work-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"<netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>"
	<netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Herbert Xu
	<herbert-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
Subject: Re: [PATCH v4] mac80211: move extra crypto data off the stack
Date: Mon, 17 Oct 2016 11:54:01 +0200	[thread overview]
Message-ID: <1476698041.19992.19.camel@sipsolutions.net> (raw)
In-Reply-To: <67161BCC-596E-4DDE-A58E-9195BB5570C2-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> (sfid-20161017_115245_275022_941CE721)


> > Well, if your other patch to make it OK to be on-stack would be
> > applied instead, this wouldn't make much sense either :)
> > 
> 
> Yes but that one only fixes ccm not gcm

Yes, but we can do the same for GCM, no?

> > In this particular patch, we could reduce the size of the struct,
> > but I
> > don't actually think it'll make a difference to go from 48 to 36
> > bytes,
> > given alignment etc., so I think I'll just leave it as is.
> > 
> 
> I understand you are in a hurry, but this is unlikely to be the only
> such issue. I will propose an 'auxdata' feature for the crypto api
> that can be used here, but also for any other occurrence where client
> data assoiciated with the request can no longer be allocated on the
> stack

No objections. I'll merge this anyway today I think, reverting is easy
later.

johannes

  parent reply	other threads:[~2016-10-17  9:54 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-17  8:33 [PATCH v4] mac80211: move extra crypto data off the stack Johannes Berg
2016-10-17  9:14 ` Ard Biesheuvel
2016-10-17  9:17   ` Ard Biesheuvel
     [not found]   ` <CAKv+Gu-aZhCBvnEQoZUZLDPXCrvgxO1pSd=6EHz+tMB+dFz5hg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-10-17  9:23     ` Johannes Berg
2016-10-17  9:30       ` Ard Biesheuvel
     [not found]         ` <CAKv+Gu_ZH9hO_xbVfOfk90CxFJ6ZTz3PKWB1v23LRVzpBrb=oQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-10-17  9:35           ` Johannes Berg
     [not found]             ` <1476696918.19992.15.camel-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
2016-10-17  9:49               ` Ard Biesheuvel
2016-10-17  9:52             ` Ard Biesheuvel
     [not found]               ` <67161BCC-596E-4DDE-A58E-9195BB5570C2-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-10-17  9:54                 ` Johannes Berg [this message]
2016-10-17 10:02                   ` Ard Biesheuvel
     [not found]                     ` <41D0AC2F-E86E-4A98-AD8B-1239D7E6123A-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-10-17 13:06                       ` Ard Biesheuvel
2016-10-17 13:16                         ` Johannes Berg
     [not found]                           ` <1476710169.315.1.camel-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
2016-10-17 13:20                             ` Ard Biesheuvel
2016-10-17 13:25                               ` Johannes Berg

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