From cb8caa3c6c04c18027258ab34e09bcf87e726f22 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Sat, 24 Jul 2021 23:47:35 +0200 Subject: [PATCH] nfc: constify nci_driver_ops (prop_ops and core_ops) 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 Signed-off-by: David S. Miller --- 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 --git a/drivers/nfc/fdp/fdp.c b/drivers/nfc/fdp/fdp.c index 73f5184..4d88a61 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 819e347..e374e67 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 5c22c53..c2d9065 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 f6fce34..72bb51e 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 5dae7e2..e7118e0 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 a7d26f2..50c6259 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) -- 2.7.4