linux-kernel - Re: [PATCH] x86/crypto: Add missing RETs

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Message-ID: <20180701131941.2dqkzg7az25qpc6b@gondor.apana.org.au>
Date:   Sun, 1 Jul 2018 21:19:41 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Borislav Petkov <bp@...en8.de>
Cc:     linux-crypto@...r.kernel.org, Mike Galbraith <efault@....de>,
        Alexey Dobriyan <adobriyan@...il.com>,
        torvalds@...ux-foundation.org, tglx@...utronix.de,
        mingo@...nel.org, jpoimboe@...hat.com, luto@...nel.org,
        peterz@...radead.org, brgerst@...il.com, hpa@...or.com,
        linux-kernel@...r.kernel.org, dvlasenk@...hat.com,
        h.peter.anvin@...el.com,
        linux-tip-commits <linux-tip-commits@...r.kernel.org>
Subject: Re: [PATCH] x86/crypto: Add missing RETs

On Sat, Jun 23, 2018 at 12:36:22PM +0200, Borislav Petkov wrote:
> Lemme send a proper patch now...
> 
> ---
> From: Borislav Petkov <bp@...e.de>
> Date: Sun, 17 Jun 2018 13:57:42 +0200
> Subject: [PATCH] x86/crypto: Add missing RETs
> 
> Add explicit RETs to the tail calls of AEGIS and MORUS crypto algorithms
> otherwise they run into INT3 padding due to
> 
>   51bad67ffbce ("x86/asm: Pad assembly functions with INT3 instructions")
> 
> leading to spurious debug exceptions.
> 
> Mike Galbraith <efault@....de> took care of all the remaining callsites.
> 
> Signed-off-by: Borislav Petkov <bp@...e.de>

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt