diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2018-05-03 15:29:29 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-05-11 19:13:15 +0300 |
| commit | 1411b5218adbcf1d45ddb260db5553c52e8d917c (patch) | |
| tree | f86de0c51c9dac9a23402a8bad8a84ad7cc1a3f8 /drivers/crypto | |
| parent | 6caf7adc5e458f77f550b6c6ca8effa152d61b4a (diff) | |
| download | linux-1411b5218adbcf1d45ddb260db5553c52e8d917c.tar.xz | |
crypto: vmx - Remove overly verbose printk from AES init routines
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>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/vmx/aes.c | 2 | ||||
| -rw-r--r-- | drivers/crypto/vmx/aes_cbc.c | 3 | ||||
| -rw-r--r-- | drivers/crypto/vmx/aes_ctr.c | 2 | ||||
| -rw-r--r-- | drivers/crypto/vmx/ghash.c | 2 |
4 files changed, 0 insertions, 9 deletions
diff --git a/drivers/crypto/vmx/aes.c b/drivers/crypto/vmx/aes.c index 96072b9b55c4..d7316f7a3a69 100644 --- a/drivers/crypto/vmx/aes.c +++ b/drivers/crypto/vmx/aes.c @@ -48,8 +48,6 @@ 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 7394d35d5936..5285ece4f33a 100644 --- a/drivers/crypto/vmx/aes_cbc.c +++ b/drivers/crypto/vmx/aes_cbc.c @@ -52,9 +52,6 @@ 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_skcipher_driver_name(fallback)); - crypto_skcipher_set_flags( fallback, diff --git a/drivers/crypto/vmx/aes_ctr.c b/drivers/crypto/vmx/aes_ctr.c index fc60d00a2e84..cd777c75291d 100644 --- a/drivers/crypto/vmx/aes_ctr.c +++ b/drivers/crypto/vmx/aes_ctr.c @@ -50,8 +50,6 @@ 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_skcipher_driver_name(fallback)); crypto_skcipher_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 |