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From:   Wolfram Sang <wsa+renesas@sang-engineering.com>
To:     linux-kernel@vger.kernel.org
Cc:     Wolfram Sang <wsa+renesas@sang-engineering.com>,
        Boris Brezillon <bbrezillon@kernel.org>,
        Arnaud Ebalard <arno@natisbad.org>,
        Srujana Challa <schalla@marvell.com>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        "David S. Miller" <davem@davemloft.net>,
        Giovanni Cabiddu <giovanni.cabiddu@intel.com>,
        linux-crypto@vger.kernel.org, qat-linux@intel.com
Subject: [PATCH] crypto: move from strlcpy with unused retval to strscpy
Date:   Thu, 18 Aug 2022 23:00:03 +0200
Message-Id: <20220818210003.6649-1-wsa+renesas@sang-engineering.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c   | 6 +++---
 drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c | 4 ++--
 drivers/crypto/qat/qat_common/adf_cfg.c             | 6 +++---
 drivers/crypto/qat/qat_common/adf_ctl_drv.c         | 2 +-
 drivers/crypto/qat/qat_common/adf_transport_debug.c | 2 +-
 5 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c
index 40b482198ebc..23c6edc70914 100644
--- a/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c
+++ b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c
@@ -97,7 +97,7 @@ static int dev_supports_eng_type(struct otx_cpt_eng_grps *eng_grps,
 static void set_ucode_filename(struct otx_cpt_ucode *ucode,
 			       const char *filename)
 {
-	strlcpy(ucode->filename, filename, OTX_CPT_UCODE_NAME_LENGTH);
+	strscpy(ucode->filename, filename, OTX_CPT_UCODE_NAME_LENGTH);
 }
 
 static char *get_eng_type_str(int eng_type)
@@ -138,7 +138,7 @@ static int get_ucode_type(struct otx_cpt_ucode_hdr *ucode_hdr, int *ucode_type)
 	u32 i, val = 0;
 	u8 nn;
 
-	strlcpy(tmp_ver_str, ucode_hdr->ver_str, OTX_CPT_UCODE_VER_STR_SZ);
+	strscpy(tmp_ver_str, ucode_hdr->ver_str, OTX_CPT_UCODE_VER_STR_SZ);
 	for (i = 0; i < strlen(tmp_ver_str); i++)
 		tmp_ver_str[i] = tolower(tmp_ver_str[i]);
 
@@ -1328,7 +1328,7 @@ static ssize_t ucode_load_store(struct device *dev,
 
 	eng_grps = container_of(attr, struct otx_cpt_eng_grps, ucode_load_attr);
 	err_msg = "Invalid engine group format";
-	strlcpy(tmp_buf, buf, OTX_CPT_UCODE_NAME_LENGTH);
+	strscpy(tmp_buf, buf, OTX_CPT_UCODE_NAME_LENGTH);
 	start = tmp_buf;
 
 	has_se = has_ie = has_ae = false;
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c b/drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c
index f10050fead16..1577986677f6 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c
@@ -68,7 +68,7 @@ static int is_2nd_ucode_used(struct otx2_cpt_eng_grp_info *eng_grp)
 static void set_ucode_filename(struct otx2_cpt_ucode *ucode,
 			       const char *filename)
 {
-	strlcpy(ucode->filename, filename, OTX2_CPT_NAME_LENGTH);
+	strscpy(ucode->filename, filename, OTX2_CPT_NAME_LENGTH);
 }
 
 static char *get_eng_type_str(int eng_type)
@@ -126,7 +126,7 @@ static int get_ucode_type(struct device *dev,
 	int i, val = 0;
 	u8 nn;
 
-	strlcpy(tmp_ver_str, ucode_hdr->ver_str, OTX2_CPT_UCODE_VER_STR_SZ);
+	strscpy(tmp_ver_str, ucode_hdr->ver_str, OTX2_CPT_UCODE_VER_STR_SZ);
 	for (i = 0; i < strlen(tmp_ver_str); i++)
 		tmp_ver_str[i] = tolower(tmp_ver_str[i]);
 
diff --git a/drivers/crypto/qat/qat_common/adf_cfg.c b/drivers/crypto/qat/qat_common/adf_cfg.c
index e61b3e13db3b..1931e5b37f2b 100644
--- a/drivers/crypto/qat/qat_common/adf_cfg.c
+++ b/drivers/crypto/qat/qat_common/adf_cfg.c
@@ -251,13 +251,13 @@ int adf_cfg_add_key_value_param(struct adf_accel_dev *accel_dev,
 		return -ENOMEM;
 
 	INIT_LIST_HEAD(&key_val->list);
-	strlcpy(key_val->key, key, sizeof(key_val->key));
+	strscpy(key_val->key, key, sizeof(key_val->key));
 
 	if (type == ADF_DEC) {
 		snprintf(key_val->val, ADF_CFG_MAX_VAL_LEN_IN_BYTES,
 			 "%ld", (*((long *)val)));
 	} else if (type == ADF_STR) {
-		strlcpy(key_val->val, (char *)val, sizeof(key_val->val));
+		strscpy(key_val->val, (char *)val, sizeof(key_val->val));
 	} else if (type == ADF_HEX) {
 		snprintf(key_val->val, ADF_CFG_MAX_VAL_LEN_IN_BYTES,
 			 "0x%lx", (unsigned long)val);
@@ -315,7 +315,7 @@ int adf_cfg_section_add(struct adf_accel_dev *accel_dev, const char *name)
 	if (!sec)
 		return -ENOMEM;
 
-	strlcpy(sec->name, name, sizeof(sec->name));
+	strscpy(sec->name, name, sizeof(sec->name));
 	INIT_LIST_HEAD(&sec->param_head);
 	down_write(&cfg->lock);
 	list_add_tail(&sec->list, &cfg->sec_list);
diff --git a/drivers/crypto/qat/qat_common/adf_ctl_drv.c b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
index e8ac932bbaab..508c18edd692 100644
--- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c
+++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
@@ -363,7 +363,7 @@ static int adf_ctl_ioctl_get_status(struct file *fp, unsigned int cmd,
 	dev_info.num_logical_accel = hw_data->num_logical_accel;
 	dev_info.banks_per_accel = hw_data->num_banks
 					/ hw_data->num_logical_accel;
-	strlcpy(dev_info.name, hw_data->dev_class->name, sizeof(dev_info.name));
+	strscpy(dev_info.name, hw_data->dev_class->name, sizeof(dev_info.name));
 	dev_info.instance_id = hw_data->instance_id;
 	dev_info.type = hw_data->dev_class->type;
 	dev_info.bus = accel_to_pci_dev(accel_dev)->bus->number;
diff --git a/drivers/crypto/qat/qat_common/adf_transport_debug.c b/drivers/crypto/qat/qat_common/adf_transport_debug.c
index e69e5907f595..08bca1c506c0 100644
--- a/drivers/crypto/qat/qat_common/adf_transport_debug.c
+++ b/drivers/crypto/qat/qat_common/adf_transport_debug.c
@@ -96,7 +96,7 @@ int adf_ring_debugfs_add(struct adf_etr_ring_data *ring, const char *name)
 	if (!ring_debug)
 		return -ENOMEM;
 
-	strlcpy(ring_debug->ring_name, name, sizeof(ring_debug->ring_name));
+	strscpy(ring_debug->ring_name, name, sizeof(ring_debug->ring_name));
 	snprintf(entry_name, sizeof(entry_name), "ring_%02d",
 		 ring->ring_number);
 
-- 
2.35.1