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nfc: constify several pointers to u8, char and sk_buff

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[ Upstream commit 3df40eb3a2ea58bf404a38f15a7a2768e4762cb0 ]

Several functions receive pointers to u8, char or sk_buff but do not
modify the contents so make them const.  This allows doing the same for
local variables and in total makes the code a little bit safer.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 0d9b41daa590 ("nfc: llcp: fix possible use of uninitialized variable in nfc_llcp_send_connect()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Krzysztof Kozlowski
2021-07-30 16:41:59 +02:00
committed by Greg Kroah-Hartman
parent ef7fe1b5c4
commit 0be9de2ea0
7 changed files with 63 additions and 55 deletions
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4
include/net/nfc/nfc.h
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@@ -266,7 +266,7 @@ struct sk_buff *nfc_alloc_send_skb(struct nfc_dev *dev, struct sock *sk,
struct sk_buff *nfc_alloc_recv_skb(unsigned int size, gfp_t gfp);
int nfc_set_remote_general_bytes(struct nfc_dev *dev,
u8 *gt, u8 gt_len);
const u8 *gt, u8 gt_len);
u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, size_t *gb_len);
int nfc_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
@@ -280,7 +280,7 @@ int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
u8 comm_mode, u8 rf_mode);
int nfc_tm_activated(struct nfc_dev *dev, u32 protocol, u8 comm_mode,
u8 *gb, size_t gb_len);
const u8 *gb, size_t gb_len);
int nfc_tm_deactivated(struct nfc_dev *dev);
int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb);