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[01/12] nfc: constify payload argument in nci_send_cmd()

Message ID 20210724214743.121884-2-krzysztof.kozlowski@canonical.com (mailing list archive)
State Not Applicable
Delegated to: Johannes Berg
Headers show
Series nfc: constify data structures | expand

Commit Message

Krzysztof Kozlowski July 24, 2021, 9:47 p.m. UTC 
The nci_send_cmd() payload argument is passed directly to skb_put_data()
which already accepts a pointer to const, so make it const as well for
correctness and safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
---
 include/net/nfc/nci_core.h | 2 +-
 net/nfc/nci/core.c         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 1df0f8074c9d..bf573eca07ca 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -360,7 +360,7 @@  int nci_core_rsp_packet(struct nci_dev *ndev, __u16 opcode,
 int nci_core_ntf_packet(struct nci_dev *ndev, __u16 opcode,
 			struct sk_buff *skb);
 void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb);
-int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload);
+int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, const void *payload);
 int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb);
 int nci_conn_max_data_pkt_payload_size(struct nci_dev *ndev, __u8 conn_id);
 void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb,
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index da7fe9db1b00..09967b836361 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -1332,7 +1332,7 @@  int nci_send_frame(struct nci_dev *ndev, struct sk_buff *skb)
 EXPORT_SYMBOL(nci_send_frame);
 
 /* Send NCI command */
-int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload)
+int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, const void *payload)
 {
 	struct nci_ctrl_hdr *hdr;
 	struct sk_buff *skb;