netdev - [PATCH net-next] nfc: store __be16 value in _

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230608-nxp-nci-be16-v1-1-24a17345b27a@kernel.org>
Date: Thu, 08 Jun 2023 13:21:15 +0200
From: Simon Horman <horms@...nel.org>
To: "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 Luca Ceresoli <luca.ceresoli@...tlin.com>, Michael Walle <michael@...le.cc>, 
 Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, 
 netdev@...r.kernel.org
Subject: [PATCH net-next] nfc: store __be16 value in __be16 variable

Use a __be16 variable to store the store the big endian value of header
in nxp_nci_i2c_fw_read().

Flagged by sparse as:

 .../i2c.c:113:22: warning: cast to restricted __be16

No functional changes intended.
Compile tested only.

Signed-off-by: Simon Horman <horms@...nel.org>
---
 drivers/nfc/nxp-nci/i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nfc/nxp-nci/i2c.c b/drivers/nfc/nxp-nci/i2c.c
index baddaf242d18..dca25a0c2f33 100644
--- a/drivers/nfc/nxp-nci/i2c.c
+++ b/drivers/nfc/nxp-nci/i2c.c
@@ -97,8 +97,8 @@ static int nxp_nci_i2c_fw_read(struct nxp_nci_i2c_phy *phy,
 			       struct sk_buff **skb)
 {
 	struct i2c_client *client = phy->i2c_dev;
-	u16 header;
 	size_t frame_len;
+	__be16 header;
 	int r;

 	r = i2c_master_recv(client, (u8 *) &header, NXP_NCI_FW_HDR_LEN);