[dpdk-stable] patch 'drivers/crypto: use snprintf return value correctly' has been queued to LTS release 16.11.4

[luca.boccassi@gmail.com]

Hi,

FYI, your patch has been queued to LTS release 16.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/01/17. So please
shout if anyone has objections.

Thanks.

Kind regards,
Luca Boccassi

---
>From ed54d1e8c40c13f272348ef60cbe2a43fca1687d Mon Sep 17 00:00:00 2001
From: Tomasz Duszynski <tdu@semihalf.com>
Date: Wed, 11 Oct 2017 13:05:07 +0200
Subject: [PATCH] drivers/crypto: use snprintf return value correctly

[ upstream commit 6ab25e634f51b98b18bd3095cd09858c4a9489fe ]

snprintf return value is the length of was encoded into destination
array excluding '\0'. Thus return value equal to the length of the
destination array or more means truncation.

This commit fixes improper use of the return value.

Fixes: eec136f3c54f ("aesni_gcm: add driver for AES-GCM crypto operations")
Fixes: 924e84f87306 ("aesni_mb: add driver for multi buffer based crypto")
Fixes: 0f548b50a160 ("crypto/aesni_mb: process crypto op on dequeue")
Fixes: 169ca3db550c ("crypto/armv8: add PMD optimized for ARMv8 processors")
Fixes: 2773c86d061a ("crypto/kasumi: add driver for KASUMI library")
Fixes: 94b0ad8e0aa5 ("null_crypto: add driver for null crypto operations")
Fixes: d61f70b4c918 ("crypto/libcrypto: add driver for OpenSSL library")
Fixes: 3aafc423cf4d ("snow3g: add driver for SNOW 3G library")
Fixes: cf7685d68f00 ("crypto/zuc: add driver for ZUC library")

Signed-off-by: Tomasz Duszynski <tdu@semihalf.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
---
 drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c   | 2 +-
 drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c | 2 +-
 drivers/crypto/kasumi/rte_kasumi_pmd_ops.c     | 2 +-
 drivers/crypto/null/null_crypto_pmd_ops.c      | 2 +-
 drivers/crypto/openssl/rte_openssl_pmd_ops.c   | 2 +-
 drivers/crypto/snow3g/rte_snow3g_pmd_ops.c     | 2 +-
 drivers/crypto/zuc/rte_zuc_pmd_ops.c           | 2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
index c51f82a8b..d4ff651f7 100644
--- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
+++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
@@ -184,7 +184,7 @@ aesni_gcm_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 			"aesni_gcm_pmd_%u_qp_%u",
 			dev->data->dev_id, qp->id);
 
-	if (n > sizeof(qp->name))
+	if (n >= sizeof(qp->name))
 		return -1;
 
 	return 0;
diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
index 287c8a509..e531c8800 100644
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
@@ -333,7 +333,7 @@ aesni_mb_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 			"aesni_mb_pmd_%u_qp_%u",
 			dev->data->dev_id, qp->id);
 
-	if (n > sizeof(qp->name))
+	if (n >= sizeof(qp->name))
 		return -1;
 
 	return 0;
diff --git a/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c b/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c
index b9285a438..8f8695d80 100644
--- a/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c
+++ b/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c
@@ -186,7 +186,7 @@ kasumi_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 			"kasumi_pmd_%u_qp_%u",
 			dev->data->dev_id, qp->id);
 
-	if (n > sizeof(qp->name))
+	if (n >= sizeof(qp->name))
 		return -1;
 
 	return 0;
diff --git a/drivers/crypto/null/null_crypto_pmd_ops.c b/drivers/crypto/null/null_crypto_pmd_ops.c
index 26ff63193..421f21e09 100644
--- a/drivers/crypto/null/null_crypto_pmd_ops.c
+++ b/drivers/crypto/null/null_crypto_pmd_ops.c
@@ -178,7 +178,7 @@ null_crypto_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 			"null_crypto_pmd_%u_qp_%u",
 			dev->data->dev_id, qp->id);
 
-	if (n > sizeof(qp->name))
+	if (n >= sizeof(qp->name))
 		return -1;
 
 	return 0;
diff --git a/drivers/crypto/openssl/rte_openssl_pmd_ops.c b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
index a072e6e39..7bf82e1a6 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd_ops.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
@@ -543,7 +543,7 @@ openssl_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 			"openssl_pmd_%u_qp_%u",
 			dev->data->dev_id, qp->id);
 
-	if (n > sizeof(qp->name))
+	if (n >= sizeof(qp->name))
 		return -1;
 
 	return 0;
diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c b/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
index 4602dfd4d..7cb47c03e 100644
--- a/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
+++ b/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
@@ -183,7 +183,7 @@ snow3g_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 			"snow3g_pmd_%u_qp_%u",
 			dev->data->dev_id, qp->id);
 
-	if (n > sizeof(qp->name))
+	if (n >= sizeof(qp->name))
 		return -1;
 
 	return 0;
diff --git a/drivers/crypto/zuc/rte_zuc_pmd_ops.c b/drivers/crypto/zuc/rte_zuc_pmd_ops.c
index 2c886d51d..620a9dae6 100644
--- a/drivers/crypto/zuc/rte_zuc_pmd_ops.c
+++ b/drivers/crypto/zuc/rte_zuc_pmd_ops.c
@@ -183,7 +183,7 @@ zuc_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 			"zuc_pmd_%u_qp_%u",
 			dev->data->dev_id, qp->id);
 
-	if (n > sizeof(qp->name))
+	if (n >= sizeof(qp->name))
 		return -1;
 
 	return 0;
-- 
2.11.0