netdev - [PATCH net 07/13] can: m_can: disable_all_interrupts, not clear active

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Message-ID: <20240829192947.1186760-8-mkl@pengutronix.de>
Date: Thu, 29 Aug 2024 21:20:40 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	kuba@...nel.org,
	linux-can@...r.kernel.org,
	kernel@...gutronix.de,
	Markus Schneider-Pargmann <msp@...libre.com>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net 07/13] can: m_can: disable_all_interrupts, not clear active_interrupts

From: Markus Schneider-Pargmann <msp@...libre.com>

active_interrupts is a cache for the enabled interrupts and not the
global masking of interrupts. Do not clear this variable otherwise we
may loose the state of the interrupts.

Fixes: 07f25091ca02 ("can: m_can: Implement receive coalescing")
Signed-off-by: Markus Schneider-Pargmann <msp@...libre.com>
Link: https://lore.kernel.org/all/20240805183047.305630-6-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/m_can/m_can.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 5228304779f1..68bd4a00ecca 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -483,7 +483,6 @@ static inline void m_can_disable_all_interrupts(struct m_can_classdev *cdev)
 {
 	m_can_coalescing_disable(cdev);
 	m_can_write(cdev, M_CAN_ILE, 0x0);
-	cdev->active_interrupts = 0x0;
 
 	if (!cdev->net->irq) {
 		dev_dbg(cdev->dev, "Stop hrtimer\n");
-- 
2.45.2