nfc: constify nfc_digital_ops

Neither the core nor the drivers modify the passed pointer to struct
nfc_digital_ops, so make it a pointer to const for correctness and safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/nfc/nfcsim.c b/drivers/nfc/nfcsim.c
index a9864fc..143dc49 100644 (file)
--- a/drivers/nfc/nfcsim.c
+++ b/drivers/nfc/nfcsim.c
@@ -320,7 +320,7 @@ static int nfcsim_tg_listen(struct nfc_digital_dev *ddev, u16 timeout,
        return nfcsim_send(ddev, NULL, timeout, cb, arg);
 }
 
-static struct nfc_digital_ops nfcsim_digital_ops = {
+static const struct nfc_digital_ops nfcsim_digital_ops = {
        .in_configure_hw = nfcsim_in_configure_hw,
        .in_send_cmd = nfcsim_in_send_cmd,
 

diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index 1d614f9..ccb5c5f 100644 (file)
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -1463,7 +1463,7 @@ static int port100_listen(struct nfc_digital_dev *ddev, u16 timeout,
        return port100_tg_send_cmd(ddev, skb, timeout, cb, arg);
 }
 
-static struct nfc_digital_ops port100_digital_ops = {
+static const struct nfc_digital_ops port100_digital_ops = {
        .in_configure_hw = port100_in_configure_hw,
        .in_send_cmd = port100_in_send_cmd,
 

diff --git a/drivers/nfc/st95hf/core.c b/drivers/nfc/st95hf/core.c
index 2dc788c..9938187 100644 (file)
--- a/drivers/nfc/st95hf/core.c
+++ b/drivers/nfc/st95hf/core.c
@@ -1037,7 +1037,7 @@ static void st95hf_abort_cmd(struct nfc_digital_dev *ddev)
 {
 }
 
-static struct nfc_digital_ops st95hf_nfc_digital_ops = {
+static const struct nfc_digital_ops st95hf_nfc_digital_ops = {
        .in_configure_hw = st95hf_in_configure_hw,
        .in_send_cmd = st95hf_in_send_cmd,
 

diff --git a/drivers/nfc/trf7970a.c b/drivers/nfc/trf7970a.c
index 3397802..1aed446 100644 (file)
--- a/drivers/nfc/trf7970a.c
+++ b/drivers/nfc/trf7970a.c
@@ -1861,7 +1861,7 @@ static void trf7970a_abort_cmd(struct nfc_digital_dev *ddev)
        mutex_unlock(&trf->lock);
 }
 
-static struct nfc_digital_ops trf7970a_nfc_ops = {
+static const struct nfc_digital_ops trf7970a_nfc_ops = {
        .in_configure_hw        = trf7970a_in_configure_hw,
        .in_send_cmd            = trf7970a_send_cmd,
        .tg_configure_hw        = trf7970a_tg_configure_hw,

diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
index 963db96..bb3e8fd 100644 (file)
--- a/include/net/nfc/digital.h
+++ b/include/net/nfc/digital.h
@@ -191,7 +191,7 @@ struct digital_poll_tech {
 
 struct nfc_digital_dev {
        struct nfc_dev *nfc_dev;
-       struct nfc_digital_ops *ops;
+       const struct nfc_digital_ops *ops;
 
        u32 protocols;
 
@@ -236,7 +236,7 @@ struct nfc_digital_dev {
        void (*skb_add_crc)(struct sk_buff *skb);
 };
 
-struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
+struct nfc_digital_dev *nfc_digital_allocate_device(const struct nfc_digital_ops *ops,
                                                    __u32 supported_protocols,
                                                    __u32 driver_capabilities,
                                                    int tx_headroom,

diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index 8f2572d..fefc036 100644 (file)
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -745,7 +745,7 @@ static const struct nfc_ops digital_nfc_ops = {
        .im_transceive = digital_in_send,
 };
 
-struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
+struct nfc_digital_dev *nfc_digital_allocate_device(const struct nfc_digital_ops *ops,
                                            __u32 supported_protocols,
                                            __u32 driver_capabilities,
                                            int tx_headroom, int tx_tailroom)