Re: [PATCH] crypto: ccp - memset structure fields to zero before reuse

[Eric Biggers <ebiggers@kernel.org>]

On Tue, Jul 09, 2019 at 10:09:16PM +0000, Gary R Hook wrote:
> On 7/9/19 3:10 PM, Eric Biggers wrote:
> > On Mon, Jul 08, 2019 at 05:08:09PM +0000, Gary R Hook wrote:
> >> On 7/5/19 2:40 PM, Eric Biggers wrote:
> >>> Hi Gary,
> >>>
> >>> On Wed, Jul 03, 2019 at 07:21:26PM +0000, Hook, Gary wrote:
> >>>> The AES GCM function reuses an 'op' data structure, which members
> >>>> contain values that must be cleared for each (re)use.
> >>>>
> >>>> Fixes: 36cf515b9bbe ("crypto: ccp - Enable support for AES GCM on v5 CCPs")
> >>>>
> >>>> Signed-off-by: Gary R Hook <gary.hook@amd.com>
> >>>> ---
> >>>>    drivers/crypto/ccp/ccp-ops.c |   12 +++++++++++-
> >>>>    1 file changed, 11 insertions(+), 1 deletion(-)
> >>>
> >>> Is this patch meant to fix the gcm-aes-ccp self-tests failure?
> >>
> >> Yessir, that is the intention. Apologies for not clarifying that point.
> >>
> >> grh
> > 
> > Okay, it would be helpful if you'd explain that in the commit message.
> 
> Gah. Of course. I'll repost.
> 
> > Also, what branch does this patch apply to?  It doesn't apply to cryptodev.
> 
> I have endeavored to make a "git pull" and a full build a required, 
> regular part of my submission process, having made (plenty of) mistakes 
> in the past. I did so last week before posting this, and the patch 
> applied then, and applies now in my local copy, before and after a git 
> pull today.
> 
> We've been having trouble with our SMTP mail server, and patches have 
> been going out base64 encoded. I'm willing to bet that's what you're 
> wrestling with.
> 
> The last patch of mine that Herbert applied appeared to be encoded 
> thusly, but he was able to successfully apply it.
> 
> I've been experimenting with changing the transfer encoding value 
> (charset=) to iso-8859-1 and us-ascii, but the best I can do is an 
> encoding that contains a lot of "=##" stuff. I'm not sure that's any 
> better, but my recent documentation patches contained those, and Herbert 
> was also able to apply them.
> 
> We'd really like to know what Herbert does to accommodate these 
> non-textual emails? And is that something that others could do?
> 

What I did was simply save your email and use 'git am -3' to try to apply it.
It didn't work.

Yes, your email is base64 encoded, which apparently 'git am' handles.  But even
after base64 decoding your patch has an extra blank line at the end, which
corrupts it since it's part of the diff context.

Can't you just use git send-email like everyone else?

- Eric