linux-kernel - [PATCH] usb: typec: ucsi: correctly access opcode

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Message-Id: <20230523162314.114274-1-minhuadotchen@gmail.com>
Date:   Wed, 24 May 2023 00:23:12 +0800
From:   Min-Hua Chen <minhuadotchen@...il.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Min-Hua Chen <minhuadotchen@...il.com>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] usb: typec: ucsi: correctly access opcode

hdr->opcode is __le32 type, use le32_to_cpu() to cast opcode
to integer in the switch..case statement to fix the following
sparse warnings:

drivers/usb/typec/ucsi/ucsi_glink.c:248:20: sparse: warning: restricted __le32 degrades to integer
drivers/usb/typec/ucsi/ucsi_glink.c:248:20: sparse: warning: restricted __le32 degrades to integer
drivers/usb/typec/ucsi/ucsi_glink.c:248:20: sparse: warning: restricted __le32 degrades to integer

No functional change.

Signed-off-by: Min-Hua Chen <minhuadotchen@...il.com>
---
 drivers/usb/typec/ucsi/ucsi_glink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
index b454a5159896..1fe9cb5b6bd9 100644
--- a/drivers/usb/typec/ucsi/ucsi_glink.c
+++ b/drivers/usb/typec/ucsi/ucsi_glink.c
@@ -245,7 +245,7 @@ static void pmic_glink_ucsi_callback(const void *data, size_t len, void *priv)
 	struct pmic_glink_ucsi *ucsi = priv;
 	const struct pmic_glink_hdr *hdr = data;
 
-	switch (hdr->opcode) {
+	switch (le32_to_cpu(hdr->opcode)) {
 	case UC_UCSI_READ_BUF_REQ:
 		pmic_glink_ucsi_read_ack(ucsi, data, len);
 		break;
-- 
2.34.1