diff mbox series

[2/5] accel/ivpu: Do not use irqsave in ivpu_ipc_dispatch

Message ID 20231113170252.758137-3-jacek.lawrynowicz@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series accel/ivpu: Replace IPC kthread with threaded IRQ | expand

Commit Message

Jacek Lawrynowicz Nov. 13, 2023, 5:02 p.m. UTC 
From: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>

ivpu_ipc_dispatch is always called with irqs disabled. Add lockdep
assertion and remove unneeded _irqsave/_irqrestore.

Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
---
 drivers/accel/ivpu/ivpu_ipc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Jeffrey Hugo Nov. 13, 2023, 8:09 p.m. UTC | #1 
On 11/13/2023 10:02 AM, Jacek Lawrynowicz wrote:
> From: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
> 
> ivpu_ipc_dispatch is always called with irqs disabled. Add lockdep
> assertion and remove unneeded _irqsave/_irqrestore.
> 
> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>

Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
diff mbox series

Patch

diff --git a/drivers/accel/ivpu/ivpu_ipc.c b/drivers/accel/ivpu/ivpu_ipc.c
index 31ae0e71a8a3..781c7e40505a 100644
--- a/drivers/accel/ivpu/ivpu_ipc.c
+++ b/drivers/accel/ivpu/ivpu_ipc.c
@@ -367,9 +367,9 @@  ivpu_ipc_dispatch(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
 {
 	struct ivpu_ipc_info *ipc = vdev->ipc;
 	struct ivpu_ipc_rx_msg *rx_msg;
-	unsigned long flags;
 
 	lockdep_assert_held(&ipc->cons_list_lock);
+	lockdep_assert_irqs_disabled();
 
 	rx_msg = kzalloc(sizeof(*rx_msg), GFP_ATOMIC);
 	if (!rx_msg) {
@@ -382,9 +382,9 @@  ivpu_ipc_dispatch(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
 	rx_msg->ipc_hdr = ipc_hdr;
 	rx_msg->jsm_msg = jsm_msg;
 
-	spin_lock_irqsave(&cons->rx_lock, flags);
+	spin_lock(&cons->rx_lock);
 	list_add_tail(&rx_msg->link, &cons->rx_msg_list);
-	spin_unlock_irqrestore(&cons->rx_lock, flags);
+	spin_unlock(&cons->rx_lock);
 
 	wake_up(&cons->rx_msg_wq);
 }