linux-kernel - [PATCH] soc: ti: wkup_m3_ipc: Send NULL dummy message instead of pointer message

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Message-ID: <20240325165507.30323-1-afd@ti.com>
Date: Mon, 25 Mar 2024 11:55:07 -0500
From: Andrew Davis <afd@...com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Santosh
 Shilimkar <ssantosh@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        Andrew Davis <afd@...com>
Subject: [PATCH] soc: ti: wkup_m3_ipc: Send NULL dummy message instead of pointer message

mbox_send_message() sends a u32 bit message, not a pointer to a message.
We only convert to a pointer type as a generic type. If we want to send
a dummy message of 0, then simply send 0 (NULL).

Signed-off-by: Andrew Davis <afd@...com>
---
 drivers/soc/ti/wkup_m3_ipc.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/soc/ti/wkup_m3_ipc.c b/drivers/soc/ti/wkup_m3_ipc.c
index 6a1c6b34c414a..88f774db92084 100644
--- a/drivers/soc/ti/wkup_m3_ipc.c
+++ b/drivers/soc/ti/wkup_m3_ipc.c
@@ -16,7 +16,6 @@
 #include <linux/irq.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/omap-mailbox.h>
 #include <linux/platform_device.h>
 #include <linux/remoteproc.h>
 #include <linux/suspend.h>
@@ -314,7 +313,6 @@ static irqreturn_t wkup_m3_txev_handler(int irq, void *ipc_data)
 static int wkup_m3_ping(struct wkup_m3_ipc *m3_ipc)
 {
 	struct device *dev = m3_ipc->dev;
-	mbox_msg_t dummy_msg = 0;
 	int ret;
 
 	if (!m3_ipc->mbox) {
@@ -330,7 +328,7 @@ static int wkup_m3_ping(struct wkup_m3_ipc *m3_ipc)
 	 * the RX callback to avoid multiple interrupts being received
 	 * by the CM3.
 	 */
-	ret = mbox_send_message(m3_ipc->mbox, &dummy_msg);
+	ret = mbox_send_message(m3_ipc->mbox, NULL);
 	if (ret < 0) {
 		dev_err(dev, "%s: mbox_send_message() failed: %d\n",
 			__func__, ret);
@@ -352,7 +350,6 @@ static int wkup_m3_ping(struct wkup_m3_ipc *m3_ipc)
 static int wkup_m3_ping_noirq(struct wkup_m3_ipc *m3_ipc)
 {
 	struct device *dev = m3_ipc->dev;
-	mbox_msg_t dummy_msg = 0;
 	int ret;
 
 	if (!m3_ipc->mbox) {
@@ -361,7 +358,7 @@ static int wkup_m3_ping_noirq(struct wkup_m3_ipc *m3_ipc)
 		return -EIO;
 	}
 
-	ret = mbox_send_message(m3_ipc->mbox, &dummy_msg);
+	ret = mbox_send_message(m3_ipc->mbox, NULL);
 	if (ret < 0) {
 		dev_err(dev, "%s: mbox_send_message() failed: %d\n",
 			__func__, ret);
-- 
2.39.2