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Message-Id: <20210729104022.47761-12-krzysztof.kozlowski@canonical.com>
Date: Thu, 29 Jul 2021 12:40:21 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Mark Greer <mgreer@...malcreek.com>,
Bongsu Jeon <bongsu.jeon@...sung.com>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, linux-nfc@...ts.01.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-wireless@...r.kernel.org
Subject: [PATCH 11/12] nfc: mrvl: constify several pointers
Several functions do not modify pointed data so arguments and local
variables can be const for correctness and safety.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
drivers/nfc/nfcmrvl/fw_dnld.c | 16 +++++++++-------
drivers/nfc/nfcmrvl/i2c.c | 2 +-
drivers/nfc/nfcmrvl/main.c | 2 +-
drivers/nfc/nfcmrvl/nfcmrvl.h | 2 +-
drivers/nfc/nfcmrvl/spi.c | 4 ++--
drivers/nfc/nfcmrvl/uart.c | 2 +-
6 files changed, 15 insertions(+), 13 deletions(-)
diff --git a/drivers/nfc/nfcmrvl/fw_dnld.c b/drivers/nfc/nfcmrvl/fw_dnld.c
index aaccb8b76b3e..edac56b01fd1 100644
--- a/drivers/nfc/nfcmrvl/fw_dnld.c
+++ b/drivers/nfc/nfcmrvl/fw_dnld.c
@@ -129,7 +129,7 @@ static void fw_dnld_timeout(struct timer_list *t)
}
static int process_state_reset(struct nfcmrvl_private *priv,
- struct sk_buff *skb)
+ const struct sk_buff *skb)
{
if (sizeof(nci_pattern_core_reset_ntf) != skb->len ||
memcmp(skb->data, nci_pattern_core_reset_ntf,
@@ -145,7 +145,8 @@ static int process_state_reset(struct nfcmrvl_private *priv,
return 0;
}
-static int process_state_init(struct nfcmrvl_private *priv, struct sk_buff *skb)
+static int process_state_init(struct nfcmrvl_private *priv,
+ const struct sk_buff *skb)
{
struct nci_core_set_config_cmd cmd;
@@ -175,7 +176,7 @@ static void create_lc(struct nfcmrvl_private *priv)
}
static int process_state_set_ref_clock(struct nfcmrvl_private *priv,
- struct sk_buff *skb)
+ const struct sk_buff *skb)
{
struct nci_core_set_config_cmd cmd;
@@ -221,7 +222,7 @@ static int process_state_set_ref_clock(struct nfcmrvl_private *priv,
}
static int process_state_set_hi_config(struct nfcmrvl_private *priv,
- struct sk_buff *skb)
+ const struct sk_buff *skb)
{
if (sizeof(nci_pattern_core_set_config_rsp) != skb->len ||
memcmp(skb->data, nci_pattern_core_set_config_rsp, skb->len))
@@ -232,7 +233,7 @@ static int process_state_set_hi_config(struct nfcmrvl_private *priv,
}
static int process_state_open_lc(struct nfcmrvl_private *priv,
- struct sk_buff *skb)
+ const struct sk_buff *skb)
{
if (sizeof(nci_pattern_core_conn_create_rsp) >= skb->len ||
memcmp(skb->data, nci_pattern_core_conn_create_rsp,
@@ -347,7 +348,7 @@ static int process_state_fw_dnld(struct nfcmrvl_private *priv,
}
static int process_state_close_lc(struct nfcmrvl_private *priv,
- struct sk_buff *skb)
+ const struct sk_buff *skb)
{
if (sizeof(nci_pattern_core_conn_close_rsp) != skb->len ||
memcmp(skb->data, nci_pattern_core_conn_close_rsp, skb->len))
@@ -358,7 +359,8 @@ static int process_state_close_lc(struct nfcmrvl_private *priv,
return 0;
}
-static int process_state_boot(struct nfcmrvl_private *priv, struct sk_buff *skb)
+static int process_state_boot(struct nfcmrvl_private *priv,
+ const struct sk_buff *skb)
{
if (sizeof(nci_pattern_proprietary_boot_rsp) != skb->len ||
memcmp(skb->data, nci_pattern_proprietary_boot_rsp, skb->len))
diff --git a/drivers/nfc/nfcmrvl/i2c.c b/drivers/nfc/nfcmrvl/i2c.c
index 59a529e72d96..6e659e77c8a2 100644
--- a/drivers/nfc/nfcmrvl/i2c.c
+++ b/drivers/nfc/nfcmrvl/i2c.c
@@ -182,8 +182,8 @@ static int nfcmrvl_i2c_parse_dt(struct device_node *node,
static int nfcmrvl_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ const struct nfcmrvl_platform_data *pdata;
struct nfcmrvl_i2c_drv_data *drv_data;
- struct nfcmrvl_platform_data *pdata;
struct nfcmrvl_platform_data config;
int ret;
diff --git a/drivers/nfc/nfcmrvl/main.c b/drivers/nfc/nfcmrvl/main.c
index 6e9e7ce8792c..d8e48bdaf652 100644
--- a/drivers/nfc/nfcmrvl/main.c
+++ b/drivers/nfc/nfcmrvl/main.c
@@ -93,7 +93,7 @@ struct nfcmrvl_private *nfcmrvl_nci_register_dev(enum nfcmrvl_phy phy,
void *drv_data,
struct nfcmrvl_if_ops *ops,
struct device *dev,
- struct nfcmrvl_platform_data *pdata)
+ const struct nfcmrvl_platform_data *pdata)
{
struct nfcmrvl_private *priv;
int rc;
diff --git a/drivers/nfc/nfcmrvl/nfcmrvl.h b/drivers/nfc/nfcmrvl/nfcmrvl.h
index a715543bc9bf..84fafa95965e 100644
--- a/drivers/nfc/nfcmrvl/nfcmrvl.h
+++ b/drivers/nfc/nfcmrvl/nfcmrvl.h
@@ -94,7 +94,7 @@ struct nfcmrvl_private *nfcmrvl_nci_register_dev(enum nfcmrvl_phy phy,
void *drv_data,
struct nfcmrvl_if_ops *ops,
struct device *dev,
- struct nfcmrvl_platform_data *pdata);
+ const struct nfcmrvl_platform_data *pdata);
void nfcmrvl_chip_reset(struct nfcmrvl_private *priv);
diff --git a/drivers/nfc/nfcmrvl/spi.c b/drivers/nfc/nfcmrvl/spi.c
index 66696321c645..7b015bb33fc9 100644
--- a/drivers/nfc/nfcmrvl/spi.c
+++ b/drivers/nfc/nfcmrvl/spi.c
@@ -106,7 +106,7 @@ static struct nfcmrvl_if_ops spi_ops = {
.nci_update_config = nfcmrvl_spi_nci_update_config,
};
-static int nfcmrvl_spi_parse_dt(struct device_node *node,
+static int nfcmrvl_spi_parse_dt(const struct device_node *node,
struct nfcmrvl_platform_data *pdata)
{
int ret;
@@ -129,7 +129,7 @@ static int nfcmrvl_spi_parse_dt(struct device_node *node,
static int nfcmrvl_spi_probe(struct spi_device *spi)
{
- struct nfcmrvl_platform_data *pdata;
+ const struct nfcmrvl_platform_data *pdata;
struct nfcmrvl_platform_data config;
struct nfcmrvl_spi_drv_data *drv_data;
int ret = 0;
diff --git a/drivers/nfc/nfcmrvl/uart.c b/drivers/nfc/nfcmrvl/uart.c
index 50d86c90b9dd..63ac434675c8 100644
--- a/drivers/nfc/nfcmrvl/uart.c
+++ b/drivers/nfc/nfcmrvl/uart.c
@@ -98,8 +98,8 @@ static int nfcmrvl_uart_parse_dt(struct device_node *node,
static int nfcmrvl_nci_uart_open(struct nci_uart *nu)
{
struct nfcmrvl_private *priv;
- struct nfcmrvl_platform_data *pdata = NULL;
struct nfcmrvl_platform_data config;
+ const struct nfcmrvl_platform_data *pdata = NULL;
struct device *dev = nu->tty->dev;
/*
--
2.27.0
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