linux-kernel - Re: [PATCH AUTOSEL 4.14 39/39] crypto: xts - simplify error handling in ->create()

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Message-ID: <20200515005530.GD29995@sasha-vm>
Date:   Thu, 14 May 2020 20:55:30 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Herbert Xu <herbert@...dor.apana.org.au>,
        linux-crypto@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 4.14 39/39] crypto: xts - simplify error handling
 in ->create()

On Thu, May 14, 2020 at 12:08:43PM -0700, Eric Biggers wrote:
>On Thu, May 14, 2020 at 02:54:56PM -0400, Sasha Levin wrote:
>> From: Eric Biggers <ebiggers@...gle.com>
>>
>> [ Upstream commit 732e540953477083082e999ff553622c59cffd5f ]
>>
>> Simplify the error handling in the XTS template's ->create() function by
>> taking advantage of crypto_drop_skcipher() now accepting (as a no-op) a
>> spawn that hasn't been grabbed yet.
>>
>> Signed-off-by: Eric Biggers <ebiggers@...gle.com>
>> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
>> Signed-off-by: Sasha Levin <sashal@...nel.org>
>
>Please don't backport this patch.  It's a cleanup (not a fix) that depends on
>patches in 5.6, which you don't seem to be backporting.

For 5.6-4.19 I grabbed these to take:

	1a263ae60b04 ("gcc-10: avoid shadowing standard library 'free()' in crypto")

cleanly. I'll drop it as it's mostly to avoid silly gcc10 warnings, but
I just wanted to let you know the reason they ended up here.

>Note, this comment applies to all stable trees as well as all the other
>"simplify error handling in ->create()" patches.
>I hope that I don't have to reply to every individual email.

You don't :)

-- 
Thanks,
Sasha