diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2018-05-03 22:29:29 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-16 09:52:35 +0200 |
| commit | ef2aa9f3a78403cd4a50b0e7626b010ca0b71627 (patch) | |
| tree | 79b60500c8085672d00740531b4b543897a14a21 /drivers | |
| parent | 05ca7fe5a78933444d46df221b16217713de5840 (diff) | |
crypto: vmx - Remove overly verbose printk from AES init routines
commit 1411b5218adbcf1d45ddb260db5553c52e8d917c upstream.
In the vmx AES init routines we do a printk(KERN_INFO ...) to report
the fallback implementation we're using.
However with a slow console this can significantly affect the speed of
crypto operations. Using 'cryptsetup benchmark' the removal of the
printk() leads to a ~5x speedup for aes-cbc decryption.
So remove them.
Fixes: 8676590a1593 ("crypto: vmx - Adding AES routines for VMX module")
Fixes: 8c755ace357c ("crypto: vmx - Adding CBC routines for VMX module")
Fixes: 4f7f60d312b3 ("crypto: vmx - Adding CTR routines for VMX module")
Fixes: cc333cd68dfa ("crypto: vmx - Adding GHASH routines for VMX module")
Cc: stable@vger.kernel.org # v4.1+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/vmx/aes.c | 2 | ||||
| -rw-r--r-- | drivers/crypto/vmx/aes_cbc.c | 2 | ||||
| -rw-r--r-- | drivers/crypto/vmx/aes_ctr.c | 2 | ||||
| -rw-r--r-- | drivers/crypto/vmx/ghash.c | 2 |
4 files changed, 0 insertions, 8 deletions
diff --git a/drivers/crypto/vmx/aes.c b/drivers/crypto/vmx/aes.c index 022c7ab7351a..b0cd5aff3822 100644 --- a/drivers/crypto/vmx/aes.c +++ b/drivers/crypto/vmx/aes.c @@ -53,8 +53,6 @@ static int p8_aes_init(struct crypto_tfm *tfm) alg, PTR_ERR(fallback)); return PTR_ERR(fallback); } - printk(KERN_INFO "Using '%s' as fallback implementation.\n", - crypto_tfm_alg_driver_name((struct crypto_tfm *) fallback)); crypto_cipher_set_flags(fallback, crypto_cipher_get_flags((struct diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c index 94ad5c0adbcb..46131701c378 100644 --- a/drivers/crypto/vmx/aes_cbc.c +++ b/drivers/crypto/vmx/aes_cbc.c @@ -55,8 +55,6 @@ static int p8_aes_cbc_init(struct crypto_tfm *tfm) alg, PTR_ERR(fallback)); return PTR_ERR(fallback); } - printk(KERN_INFO "Using '%s' as fallback implementation.\n", - crypto_tfm_alg_driver_name((struct crypto_tfm *) fallback)); crypto_blkcipher_set_flags( fallback, diff --git a/drivers/crypto/vmx/aes_ctr.c b/drivers/crypto/vmx/aes_ctr.c index 7cf6d31c1123..6ef7548c5c87 100644 --- a/drivers/crypto/vmx/aes_ctr.c +++ b/drivers/crypto/vmx/aes_ctr.c @@ -53,8 +53,6 @@ static int p8_aes_ctr_init(struct crypto_tfm *tfm) alg, PTR_ERR(fallback)); return PTR_ERR(fallback); } - printk(KERN_INFO "Using '%s' as fallback implementation.\n", - crypto_tfm_alg_driver_name((struct crypto_tfm *) fallback)); crypto_blkcipher_set_flags( fallback, diff --git a/drivers/crypto/vmx/ghash.c b/drivers/crypto/vmx/ghash.c index 27a94a119009..1c4b5b889fba 100644 --- a/drivers/crypto/vmx/ghash.c +++ b/drivers/crypto/vmx/ghash.c @@ -64,8 +64,6 @@ static int p8_ghash_init_tfm(struct crypto_tfm *tfm) alg, PTR_ERR(fallback)); return PTR_ERR(fallback); } - printk(KERN_INFO "Using '%s' as fallback implementation.\n", - crypto_tfm_alg_driver_name(crypto_shash_tfm(fallback))); crypto_shash_set_flags(fallback, crypto_shash_get_flags((struct crypto_shash |