diff mbox series

[04/12] nfc: constify nci_driver_ops (prop_ops and core_ops)

Message ID 20210724214743.121884-5-krzysztof.kozlowski@canonical.com (mailing list archive)
State Accepted
Commit cb8caa3c6c04c18027258ab34e09bcf87e726f22
Delegated to: Netdev Maintainers
Headers show
Series nfc: constify data structures | expand

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netdev/source_inline success Was 0 now: 0
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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 2 this patch: 2
netdev/kdoc success Errors and warnings before: 0 this patch: 0
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netdev/checkpatch warning WARNING: line length of 83 exceeds 80 columns WARNING: line length of 84 exceeds 80 columns
netdev/build_allmodconfig_warn success Errors and warnings before: 2 this patch: 2
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Commit Message

Krzysztof Kozlowski July 24, 2021, 9:47 p.m. UTC 
Neither the core nor the drivers modify the passed pointer to struct
nci_driver_ops (consisting of function pointers), so make it a pointer
to const for correctness and safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
---
 drivers/nfc/fdp/fdp.c      |  4 ++--
 drivers/nfc/s3fwrn5/nci.c  |  2 +-
 drivers/nfc/s3fwrn5/nci.h  |  2 +-
 drivers/nfc/st-nci/core.c  |  2 +-
 include/net/nfc/nci_core.h |  4 ++--
 net/nfc/nci/core.c         | 16 ++++++++--------
 6 files changed, 15 insertions(+), 15 deletions(-)
diff mbox series

Patch

diff --git a/drivers/nfc/fdp/fdp.c b/drivers/nfc/fdp/fdp.c
index 73f51848a693..4d88a617d0e8 100644
--- a/drivers/nfc/fdp/fdp.c
+++ b/drivers/nfc/fdp/fdp.c
@@ -651,7 +651,7 @@  static int fdp_nci_core_get_config_rsp_packet(struct nci_dev *ndev,
 	return 0;
 }
 
-static struct nci_driver_ops fdp_core_ops[] = {
+static const struct nci_driver_ops fdp_core_ops[] = {
 	{
 		.opcode = NCI_OP_CORE_GET_CONFIG_RSP,
 		.rsp = fdp_nci_core_get_config_rsp_packet,
@@ -662,7 +662,7 @@  static struct nci_driver_ops fdp_core_ops[] = {
 	},
 };
 
-static struct nci_driver_ops fdp_prop_ops[] = {
+static const struct nci_driver_ops fdp_prop_ops[] = {
 	{
 		.opcode = nci_opcode_pack(NCI_GID_PROP, NCI_OP_PROP_PATCH_OID),
 		.rsp = fdp_nci_prop_patch_rsp_packet,
diff --git a/drivers/nfc/s3fwrn5/nci.c b/drivers/nfc/s3fwrn5/nci.c
index 819e3474a437..e374e670b36b 100644
--- a/drivers/nfc/s3fwrn5/nci.c
+++ b/drivers/nfc/s3fwrn5/nci.c
@@ -20,7 +20,7 @@  static int s3fwrn5_nci_prop_rsp(struct nci_dev *ndev, struct sk_buff *skb)
 	return 0;
 }
 
-struct nci_driver_ops s3fwrn5_nci_prop_ops[4] = {
+const struct nci_driver_ops s3fwrn5_nci_prop_ops[4] = {
 	{
 		.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
 				NCI_PROP_SET_RFREG),
diff --git a/drivers/nfc/s3fwrn5/nci.h b/drivers/nfc/s3fwrn5/nci.h
index 5c22c5315f79..c2d906591e9e 100644
--- a/drivers/nfc/s3fwrn5/nci.h
+++ b/drivers/nfc/s3fwrn5/nci.h
@@ -50,7 +50,7 @@  struct nci_prop_fw_cfg_rsp {
 	__u8 status;
 };
 
-extern struct nci_driver_ops s3fwrn5_nci_prop_ops[4];
+extern const struct nci_driver_ops s3fwrn5_nci_prop_ops[4];
 int s3fwrn5_nci_rf_configure(struct s3fwrn5_info *info, const char *fw_name);
 
 #endif /* __LOCAL_S3FWRN5_NCI_H_ */
diff --git a/drivers/nfc/st-nci/core.c b/drivers/nfc/st-nci/core.c
index f6fce34a77da..72bb51efdf9c 100644
--- a/drivers/nfc/st-nci/core.c
+++ b/drivers/nfc/st-nci/core.c
@@ -86,7 +86,7 @@  static int st_nci_prop_rsp_packet(struct nci_dev *ndev,
 	return 0;
 }
 
-static struct nci_driver_ops st_nci_prop_ops[] = {
+static const struct nci_driver_ops st_nci_prop_ops[] = {
 	{
 		.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY,
 					  ST_NCI_CORE_PROP),
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 5dae7e2cbc49..e7118e0cc3b1 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -82,10 +82,10 @@  struct nci_ops {
 	void  (*hci_cmd_received)(struct nci_dev *ndev, u8 pipe, u8 cmd,
 				  struct sk_buff *skb);
 
-	struct nci_driver_ops *prop_ops;
+	const struct nci_driver_ops *prop_ops;
 	size_t n_prop_ops;
 
-	struct nci_driver_ops *core_ops;
+	const struct nci_driver_ops *core_ops;
 	size_t n_core_ops;
 };
 
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index a7d26f2791b0..50c625940fa3 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -1363,12 +1363,12 @@  int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, const void *payl
 EXPORT_SYMBOL(nci_send_cmd);
 
 /* Proprietary commands API */
-static struct nci_driver_ops *ops_cmd_lookup(struct nci_driver_ops *ops,
-					     size_t n_ops,
-					     __u16 opcode)
+static const struct nci_driver_ops *ops_cmd_lookup(const struct nci_driver_ops *ops,
+						   size_t n_ops,
+						   __u16 opcode)
 {
 	size_t i;
-	struct nci_driver_ops *op;
+	const struct nci_driver_ops *op;
 
 	if (!ops || !n_ops)
 		return NULL;
@@ -1383,10 +1383,10 @@  static struct nci_driver_ops *ops_cmd_lookup(struct nci_driver_ops *ops,
 }
 
 static int nci_op_rsp_packet(struct nci_dev *ndev, __u16 rsp_opcode,
-			     struct sk_buff *skb, struct nci_driver_ops *ops,
+			     struct sk_buff *skb, const struct nci_driver_ops *ops,
 			     size_t n_ops)
 {
-	struct nci_driver_ops *op;
+	const struct nci_driver_ops *op;
 
 	op = ops_cmd_lookup(ops, n_ops, rsp_opcode);
 	if (!op || !op->rsp)
@@ -1396,10 +1396,10 @@  static int nci_op_rsp_packet(struct nci_dev *ndev, __u16 rsp_opcode,
 }
 
 static int nci_op_ntf_packet(struct nci_dev *ndev, __u16 ntf_opcode,
-			     struct sk_buff *skb, struct nci_driver_ops *ops,
+			     struct sk_buff *skb, const struct nci_driver_ops *ops,
 			     size_t n_ops)
 {
-	struct nci_driver_ops *op;
+	const struct nci_driver_ops *op;
 
 	op = ops_cmd_lookup(ops, n_ops, ntf_opcode);
 	if (!op || !op->ntf)