linux-kernel - Re: [PATCH]crypto: Fix algorithm and driver duplicate registered

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Message-ID: <20091123172117.GA14372@youquan-linux.bj.intel.com>
Date:	Mon, 23 Nov 2009 12:21:17 -0500
From:	"Youquan,Song" <youquan.song@...ux.intel.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	"Youquan,Song" <youquan.song@...ux.intel.com>,
	linux-kernel@...r.kernel.org, ying.huang@...el.com,
	kent.liu@...el.com, youquan.song@...el.com
Subject: Re: [PATCH]crypto: Fix algorithm and driver duplicate registered

> Can you show me a sample /proc/crypto showing this problem and how
> you created it?
> 
Sorry for late. I use the cryptodev-2.6 tree, enable AESNI and PCLMULQDQ NI.

Step: like this.  
A. modprobe tcrypt mode=35
B. modprobe aesni-intel
C. modprobe tcrypt mode=35

After I do A. Because it do not load aesni-intel, so I do B, then repeat C.

cat /proc/crypto.

there is two identical gcm: 

name         : gcm(aes)
driver       : gcm_base(ctr-aes-aesni,ghash-clmulni)
module       : gcm
priority     : 400
refcnt       : 1
selftest     : unknown
type         : aead
async        : yes
blocksize    : 1
ivsize       : 16
maxauthsize  : 16
geniv        : <built-in>

name         : gcm(aes)
driver       : gcm_base(ctr-aes-aesni,ghash-clmulni)
module       : gcm
priority     : 400
refcnt       : 1
selftest     : unknown
type         : aead
async        : yes
blocksize    : 1
ivsize       : 16
maxauthsize  : 16
geniv        : <built-in>

name         : fpu(ctr(__aes-aesni))
driver       : cryptd(fpu(ctr(__driver-aes-aesni)))
module       : cryptd
priority     : 50
refcnt       : 1
selftest     : passed
type         : ablkcipher
async        : yes
blocksize    : 1
min keysize  : 16
max keysize  : 32
ivsize       : 16
geniv        : <default>

name         : fpu(ctr(__aes-aesni))
driver       : fpu(ctr(__driver-aes-aesni))
module       : fpu
priority     : 0
refcnt       : 1
selftest     : passed
type         : blkcipher
blocksize    : 1
min keysize  : 16
max keysize  : 32
ivsize       : 16

 

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