This is a note to let you know that I've just added the patch titled
mailbox: omap: Fix mailbox interrupt sharing
to the 6.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mailbox-omap-fix-mailbox-interrupt-sharing.patch
and it can be found in the queue-6.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e3b18a25bae05c1d9e6bac9a43d34196eee6f9eb
Author: Andrew Davis <afd@xxxxxx>
Date: Tue Jun 11 12:04:56 2024 -0500
mailbox: omap: Fix mailbox interrupt sharing
[ Upstream commit 0a02bc0a34cd53c7fe5bf4bae6efb56ad47677fa ]
Multiple mailbox users can share one interrupt line. This flag was
mistakenly dropped as part of the FIFO removal. Mark the IRQ as shared.
Reported-by: Beleswar Padhi <b-padhi@xxxxxx>
Fixes: 3f58c1f4206f ("mailbox: omap: Remove kernel FIFO message queuing")
Signed-off-by: Andrew Davis <afd@xxxxxx>
Tested-by: Beleswar Padhi <b-padhi@xxxxxx>
Signed-off-by: Jassi Brar <jassisinghbrar@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mailbox/omap-mailbox.c b/drivers/mailbox/omap-mailbox.c
index 46747559b438f..7a87424657a15 100644
--- a/drivers/mailbox/omap-mailbox.c
+++ b/drivers/mailbox/omap-mailbox.c
@@ -230,7 +230,8 @@ static int omap_mbox_startup(struct omap_mbox *mbox)
int ret = 0;
ret = request_threaded_irq(mbox->irq, NULL, mbox_interrupt,
- IRQF_ONESHOT, mbox->name, mbox);
+ IRQF_SHARED | IRQF_ONESHOT, mbox->name,
+ mbox);
if (unlikely(ret)) {
pr_err("failed to register mailbox interrupt:%d\n", ret);
return ret;
