crypto: vmx - Remove overly verbose printk from AES init routines

BugLink: https://bugs.launchpad.net/bugs/1777389

commit 1411b521 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: 8676590a ("crypto: vmx - Adding AES routines for VMX module")
Fixes: 8c755ace ("crypto: vmx - Adding CBC routines for VMX module")
Fixes: 4f7f60d3 ("crypto: vmx - Adding CTR routines for VMX module")
Fixes: cc333cd6 ("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>
Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

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

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,

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,

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