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nfc: microread: constify several pointers

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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@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Krzysztof Kozlowski 2021-07-29 12:40:20 +02:00 committed by David S. Miller
parent 3d463dd502
commit a751449f8b
3 changed files with 4 additions and 4 deletions
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2
drivers/nfc/microread/i2c.c
View file

@ -73,7 +73,7 @@ static void microread_i2c_remove_len_crc(struct sk_buff *skb)
skb_trim(skb, MICROREAD_I2C_FRAME_TAILROOM); skb_trim(skb, MICROREAD_I2C_FRAME_TAILROOM);
} }
static int check_crc(struct sk_buff *skb) static int check_crc(const struct sk_buff *skb)
{ {
int i; int i;
u8 crc = 0; u8 crc = 0;

4
drivers/nfc/microread/microread.c
View file

@ -358,7 +358,7 @@ static int microread_complete_target_discovered(struct nfc_hci_dev *hdev,
static void microread_im_transceive_cb(void *context, struct sk_buff *skb, static void microread_im_transceive_cb(void *context, struct sk_buff *skb,
int err) int err)
{ {
struct microread_info *info = context; const struct microread_info *info = context;
switch (info->async_cb_type) { switch (info->async_cb_type) {
case MICROREAD_CB_TYPE_READER_ALL: case MICROREAD_CB_TYPE_READER_ALL:
@ -642,7 +642,7 @@ static const struct nfc_hci_ops microread_hci_ops = {
}; };
int microread_probe(void *phy_id, const struct nfc_phy_ops *phy_ops, int microread_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
char *llc_name, int phy_headroom, int phy_tailroom, const char *llc_name, int phy_headroom, int phy_tailroom,
int phy_payload, struct nfc_hci_dev **hdev) int phy_payload, struct nfc_hci_dev **hdev)
{ {
struct microread_info *info; struct microread_info *info;

2
drivers/nfc/microread/microread.h
View file

@ -11,7 +11,7 @@
#define DRIVER_DESC "NFC driver for microread" #define DRIVER_DESC "NFC driver for microread"
int microread_probe(void *phy_id, const struct nfc_phy_ops *phy_ops, int microread_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
char *llc_name, int phy_headroom, int phy_tailroom, const char *llc_name, int phy_headroom, int phy_tailroom,
int phy_payload, struct nfc_hci_dev **hdev); int phy_payload, struct nfc_hci_dev **hdev);
void microread_remove(struct nfc_hci_dev *hdev); void microread_remove(struct nfc_hci_dev *hdev);