linux-kernel - [PATCH 4.17 44/45] crypto: vmx - Remove overly verbose printk from AES XTS init

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Date:   Thu, 14 Jun 2018 16:04:35 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Michael Ellerman <mpe@...erman.id.au>,
        Herbert Xu <herbert@...dor.apana.org.au>
Subject: [PATCH 4.17 44/45] crypto: vmx - Remove overly verbose printk from AES XTS init

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Michael Ellerman <mpe@...erman.id.au>

commit 730f23b66095a700e2f0786abda6bca011b31558 upstream.

In p8_aes_xts_init() 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. So remove it.

Fixes: c07f5d3da643 ("crypto: vmx - Adding support for XTS")
Cc: stable@...r.kernel.org # v4.8+
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/crypto/vmx/aes_xts.c |    2 --
 1 file changed, 2 deletions(-)

--- a/drivers/crypto/vmx/aes_xts.c
+++ b/drivers/crypto/vmx/aes_xts.c
@@ -53,8 +53,6 @@ static int p8_aes_xts_init(struct crypto
 			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,