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Message-Id: <20210724214743.121884-6-krzysztof.kozlowski@canonical.com>
Date: Sat, 24 Jul 2021 23:47:36 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Charles Gorand <charles.gorand@...innov.com>,
Krzysztof Opasiak <k.opasiak@...sung.com>,
Mark Greer <mgreer@...malcreek.com>,
Bongsu Jeon <bongsu.jeon@...sung.com>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
linux-wireless@...r.kernel.org
Subject: [PATCH 05/12] nfc: constify nfc_phy_ops
Neither the core nor the drivers modify the passed pointer to struct
nfc_phy_ops (consisting of function pointers), so make it a pointer
to const for correctness and safety.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
drivers/nfc/fdp/fdp.c | 4 ++--
drivers/nfc/fdp/fdp.h | 2 +-
drivers/nfc/fdp/i2c.c | 2 +-
drivers/nfc/mei_phy.c | 2 +-
drivers/nfc/mei_phy.h | 2 +-
drivers/nfc/microread/i2c.c | 2 +-
drivers/nfc/microread/microread.c | 8 ++++----
drivers/nfc/microread/microread.h | 6 +++---
drivers/nfc/pn544/i2c.c | 2 +-
drivers/nfc/pn544/pn544.c | 9 +++++----
drivers/nfc/pn544/pn544.h | 7 ++++---
drivers/nfc/st-nci/i2c.c | 2 +-
drivers/nfc/st-nci/ndlc.c | 6 +++---
drivers/nfc/st-nci/ndlc.h | 8 ++++----
drivers/nfc/st-nci/spi.c | 2 +-
drivers/nfc/st21nfca/core.c | 2 +-
drivers/nfc/st21nfca/i2c.c | 2 +-
drivers/nfc/st21nfca/st21nfca.h | 4 ++--
18 files changed, 37 insertions(+), 35 deletions(-)
diff --git a/drivers/nfc/fdp/fdp.c b/drivers/nfc/fdp/fdp.c
index 4d88a617d0e8..3e542b7389cb 100644
--- a/drivers/nfc/fdp/fdp.c
+++ b/drivers/nfc/fdp/fdp.c
@@ -38,7 +38,7 @@
#define NCI_OP_PROP_SET_PDATA_OID 0x23
struct fdp_nci_info {
- struct nfc_phy_ops *phy_ops;
+ const struct nfc_phy_ops *phy_ops;
struct fdp_i2c_phy *phy;
struct nci_dev *ndev;
@@ -687,7 +687,7 @@ static const struct nci_ops nci_ops = {
.n_core_ops = ARRAY_SIZE(fdp_core_ops),
};
-int fdp_nci_probe(struct fdp_i2c_phy *phy, struct nfc_phy_ops *phy_ops,
+int fdp_nci_probe(struct fdp_i2c_phy *phy, const struct nfc_phy_ops *phy_ops,
struct nci_dev **ndevp, int tx_headroom,
int tx_tailroom, u8 clock_type, u32 clock_freq,
u8 *fw_vsc_cfg)
diff --git a/drivers/nfc/fdp/fdp.h b/drivers/nfc/fdp/fdp.h
index ead3b21ccae6..dc048d4b977e 100644
--- a/drivers/nfc/fdp/fdp.h
+++ b/drivers/nfc/fdp/fdp.h
@@ -21,7 +21,7 @@ struct fdp_i2c_phy {
uint16_t next_read_size;
};
-int fdp_nci_probe(struct fdp_i2c_phy *phy, struct nfc_phy_ops *phy_ops,
+int fdp_nci_probe(struct fdp_i2c_phy *phy, const struct nfc_phy_ops *phy_ops,
struct nci_dev **ndev, int tx_headroom, int tx_tailroom,
u8 clock_type, u32 clock_freq, u8 *fw_vsc_cfg);
void fdp_nci_remove(struct nci_dev *ndev);
diff --git a/drivers/nfc/fdp/i2c.c b/drivers/nfc/fdp/i2c.c
index c5596e514648..98e1876c9468 100644
--- a/drivers/nfc/fdp/i2c.c
+++ b/drivers/nfc/fdp/i2c.c
@@ -120,7 +120,7 @@ static int fdp_nci_i2c_write(void *phy_id, struct sk_buff *skb)
return r;
}
-static struct nfc_phy_ops i2c_phy_ops = {
+static const struct nfc_phy_ops i2c_phy_ops = {
.write = fdp_nci_i2c_write,
.enable = fdp_nci_i2c_enable,
.disable = fdp_nci_i2c_disable,
diff --git a/drivers/nfc/mei_phy.c b/drivers/nfc/mei_phy.c
index e56cea716cd2..41146bb99474 100644
--- a/drivers/nfc/mei_phy.c
+++ b/drivers/nfc/mei_phy.c
@@ -362,7 +362,7 @@ static void nfc_mei_phy_disable(void *phy_id)
phy->powered = 0;
}
-struct nfc_phy_ops mei_phy_ops = {
+const struct nfc_phy_ops mei_phy_ops = {
.write = nfc_mei_phy_write,
.enable = nfc_mei_phy_enable,
.disable = nfc_mei_phy_disable,
diff --git a/drivers/nfc/mei_phy.h b/drivers/nfc/mei_phy.h
index 51bd44f5f3b8..2b1edb3eba15 100644
--- a/drivers/nfc/mei_phy.h
+++ b/drivers/nfc/mei_phy.h
@@ -45,7 +45,7 @@ struct nfc_mei_phy {
int hard_fault;
};
-extern struct nfc_phy_ops mei_phy_ops;
+extern const struct nfc_phy_ops mei_phy_ops;
struct nfc_mei_phy *nfc_mei_phy_alloc(struct mei_cl_device *device);
void nfc_mei_phy_free(struct nfc_mei_phy *phy);
diff --git a/drivers/nfc/microread/i2c.c b/drivers/nfc/microread/i2c.c
index dd78d987e6c9..f91760c78455 100644
--- a/drivers/nfc/microread/i2c.c
+++ b/drivers/nfc/microread/i2c.c
@@ -225,7 +225,7 @@ static irqreturn_t microread_i2c_irq_thread_fn(int irq, void *phy_id)
return IRQ_HANDLED;
}
-static struct nfc_phy_ops i2c_phy_ops = {
+static const struct nfc_phy_ops i2c_phy_ops = {
.write = microread_i2c_write,
.enable = microread_i2c_enable,
.disable = microread_i2c_disable,
diff --git a/drivers/nfc/microread/microread.c b/drivers/nfc/microread/microread.c
index b1d3975e8a81..a5d5c3ec65f9 100644
--- a/drivers/nfc/microread/microread.c
+++ b/drivers/nfc/microread/microread.c
@@ -152,7 +152,7 @@ static struct nfc_hci_gate microread_gates[] = {
#define MICROREAD_CMD_TAILROOM 2
struct microread_info {
- struct nfc_phy_ops *phy_ops;
+ const struct nfc_phy_ops *phy_ops;
void *phy_id;
struct nfc_hci_dev *hdev;
@@ -641,9 +641,9 @@ static struct nfc_hci_ops microread_hci_ops = {
.event_received = microread_event_received,
};
-int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
- int phy_headroom, int phy_tailroom, int phy_payload,
- struct nfc_hci_dev **hdev)
+int microread_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
+ char *llc_name, int phy_headroom, int phy_tailroom,
+ int phy_payload, struct nfc_hci_dev **hdev)
{
struct microread_info *info;
unsigned long quirks = 0;
diff --git a/drivers/nfc/microread/microread.h b/drivers/nfc/microread/microread.h
index 044f5e456375..76152d7aa53c 100644
--- a/drivers/nfc/microread/microread.h
+++ b/drivers/nfc/microread/microread.h
@@ -10,9 +10,9 @@
#define DRIVER_DESC "NFC driver for microread"
-int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
- int phy_headroom, int phy_tailroom, int phy_payload,
- struct nfc_hci_dev **hdev);
+int microread_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
+ char *llc_name, int phy_headroom, int phy_tailroom,
+ int phy_payload, struct nfc_hci_dev **hdev);
void microread_remove(struct nfc_hci_dev *hdev);
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
index de59e439c369..37d26f01986b 100644
--- a/drivers/nfc/pn544/i2c.c
+++ b/drivers/nfc/pn544/i2c.c
@@ -515,7 +515,7 @@ static irqreturn_t pn544_hci_i2c_irq_thread_fn(int irq, void *phy_id)
return IRQ_HANDLED;
}
-static struct nfc_phy_ops i2c_phy_ops = {
+static const struct nfc_phy_ops i2c_phy_ops = {
.write = pn544_hci_i2c_write,
.enable = pn544_hci_i2c_enable,
.disable = pn544_hci_i2c_disable,
diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index b788870473e8..23faa46bb486 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -108,7 +108,7 @@ static struct nfc_hci_gate pn544_gates[] = {
#define PN544_CMDS_HEADROOM 2
struct pn544_hci_info {
- struct nfc_phy_ops *phy_ops;
+ const struct nfc_phy_ops *phy_ops;
void *phy_id;
struct nfc_hci_dev *hdev;
@@ -901,9 +901,10 @@ static struct nfc_hci_ops pn544_hci_ops = {
.disable_se = pn544_hci_disable_se,
};
-int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
- int phy_headroom, int phy_tailroom, int phy_payload,
- fw_download_t fw_download, struct nfc_hci_dev **hdev)
+int pn544_hci_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
+ char *llc_name, int phy_headroom, int phy_tailroom,
+ int phy_payload, fw_download_t fw_download,
+ struct nfc_hci_dev **hdev)
{
struct pn544_hci_info *info;
u32 protocols;
diff --git a/drivers/nfc/pn544/pn544.h b/drivers/nfc/pn544/pn544.h
index 5634ba215ead..c6fe3e11e0c8 100644
--- a/drivers/nfc/pn544/pn544.h
+++ b/drivers/nfc/pn544/pn544.h
@@ -16,9 +16,10 @@
typedef int (*fw_download_t)(void *context, const char *firmware_name,
u8 hw_variant);
-int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
- int phy_headroom, int phy_tailroom, int phy_payload,
- fw_download_t fw_download, struct nfc_hci_dev **hdev);
+int pn544_hci_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
+ char *llc_name, int phy_headroom, int phy_tailroom,
+ int phy_payload, fw_download_t fw_download,
+ struct nfc_hci_dev **hdev);
void pn544_hci_remove(struct nfc_hci_dev *hdev);
#endif /* __LOCAL_PN544_H_ */
diff --git a/drivers/nfc/st-nci/i2c.c b/drivers/nfc/st-nci/i2c.c
index 46981405e8b1..ccf6152ebb9f 100644
--- a/drivers/nfc/st-nci/i2c.c
+++ b/drivers/nfc/st-nci/i2c.c
@@ -186,7 +186,7 @@ static irqreturn_t st_nci_irq_thread_fn(int irq, void *phy_id)
return IRQ_HANDLED;
}
-static struct nfc_phy_ops i2c_phy_ops = {
+static const struct nfc_phy_ops i2c_phy_ops = {
.write = st_nci_i2c_write,
.enable = st_nci_i2c_enable,
.disable = st_nci_i2c_disable,
diff --git a/drivers/nfc/st-nci/ndlc.c b/drivers/nfc/st-nci/ndlc.c
index 5d74c674368a..e9dc313b333e 100644
--- a/drivers/nfc/st-nci/ndlc.c
+++ b/drivers/nfc/st-nci/ndlc.c
@@ -253,9 +253,9 @@ static void ndlc_t2_timeout(struct timer_list *t)
schedule_work(&ndlc->sm_work);
}
-int ndlc_probe(void *phy_id, struct nfc_phy_ops *phy_ops, struct device *dev,
- int phy_headroom, int phy_tailroom, struct llt_ndlc **ndlc_id,
- struct st_nci_se_status *se_status)
+int ndlc_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
+ struct device *dev, int phy_headroom, int phy_tailroom,
+ struct llt_ndlc **ndlc_id, struct st_nci_se_status *se_status)
{
struct llt_ndlc *ndlc;
diff --git a/drivers/nfc/st-nci/ndlc.h b/drivers/nfc/st-nci/ndlc.h
index 066e2fd75238..c24ce9b0df52 100644
--- a/drivers/nfc/st-nci/ndlc.h
+++ b/drivers/nfc/st-nci/ndlc.h
@@ -16,7 +16,7 @@ struct st_nci_se_status;
/* Low Level Transport description */
struct llt_ndlc {
struct nci_dev *ndev;
- struct nfc_phy_ops *ops;
+ const struct nfc_phy_ops *ops;
void *phy_id;
struct timer_list t1_timer;
@@ -45,8 +45,8 @@ int ndlc_open(struct llt_ndlc *ndlc);
void ndlc_close(struct llt_ndlc *ndlc);
int ndlc_send(struct llt_ndlc *ndlc, struct sk_buff *skb);
void ndlc_recv(struct llt_ndlc *ndlc, struct sk_buff *skb);
-int ndlc_probe(void *phy_id, struct nfc_phy_ops *phy_ops, struct device *dev,
- int phy_headroom, int phy_tailroom, struct llt_ndlc **ndlc_id,
- struct st_nci_se_status *se_status);
+int ndlc_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
+ struct device *dev, int phy_headroom, int phy_tailroom,
+ struct llt_ndlc **ndlc_id, struct st_nci_se_status *se_status);
void ndlc_remove(struct llt_ndlc *ndlc);
#endif /* __LOCAL_NDLC_H__ */
diff --git a/drivers/nfc/st-nci/spi.c b/drivers/nfc/st-nci/spi.c
index 250d56f204c3..a620c34790e6 100644
--- a/drivers/nfc/st-nci/spi.c
+++ b/drivers/nfc/st-nci/spi.c
@@ -198,7 +198,7 @@ static irqreturn_t st_nci_irq_thread_fn(int irq, void *phy_id)
return IRQ_HANDLED;
}
-static struct nfc_phy_ops spi_phy_ops = {
+static const struct nfc_phy_ops spi_phy_ops = {
.write = st_nci_spi_write,
.enable = st_nci_spi_enable,
.disable = st_nci_spi_disable,
diff --git a/drivers/nfc/st21nfca/core.c b/drivers/nfc/st21nfca/core.c
index 6ca0d2f56b18..583c36d4ff67 100644
--- a/drivers/nfc/st21nfca/core.c
+++ b/drivers/nfc/st21nfca/core.c
@@ -935,7 +935,7 @@ static struct nfc_hci_ops st21nfca_hci_ops = {
.se_io = st21nfca_hci_se_io,
};
-int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
+int st21nfca_hci_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
char *llc_name, int phy_headroom, int phy_tailroom,
int phy_payload, struct nfc_hci_dev **hdev,
struct st21nfca_se_status *se_status)
diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c
index 7a9f4d71707e..9dc9693a7356 100644
--- a/drivers/nfc/st21nfca/i2c.c
+++ b/drivers/nfc/st21nfca/i2c.c
@@ -482,7 +482,7 @@ static irqreturn_t st21nfca_hci_irq_thread_fn(int irq, void *phy_id)
return IRQ_HANDLED;
}
-static struct nfc_phy_ops i2c_phy_ops = {
+static const struct nfc_phy_ops i2c_phy_ops = {
.write = st21nfca_hci_i2c_write,
.enable = st21nfca_hci_i2c_enable,
.disable = st21nfca_hci_i2c_disable,
diff --git a/drivers/nfc/st21nfca/st21nfca.h b/drivers/nfc/st21nfca/st21nfca.h
index 5e0de0fef1d4..cb6ad916be91 100644
--- a/drivers/nfc/st21nfca/st21nfca.h
+++ b/drivers/nfc/st21nfca/st21nfca.h
@@ -144,7 +144,7 @@ struct st21nfca_se_info {
};
struct st21nfca_hci_info {
- struct nfc_phy_ops *phy_ops;
+ const struct nfc_phy_ops *phy_ops;
void *phy_id;
struct nfc_hci_dev *hdev;
@@ -163,7 +163,7 @@ struct st21nfca_hci_info {
struct st21nfca_vendor_info vendor_info;
};
-int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
+int st21nfca_hci_probe(void *phy_id, const struct nfc_phy_ops *phy_ops,
char *llc_name, int phy_headroom, int phy_tailroom,
int phy_payload, struct nfc_hci_dev **hdev,
struct st21nfca_se_status *se_status);
--
2.27.0
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