This is a note to let you know that I've just added the patch titled
i3c: master: svc: change ENXIO to EAGAIN when IBI occurs during start frame
to the 6.6-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:
i3c-master-svc-change-enxio-to-eagain-when-ibi-occur.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c9e6ed10528b75f953096f930f2e43ca94e766ec
Author: Frank Li <Frank.Li@xxxxxxx>
Date: Mon May 6 12:40:08 2024 -0400
i3c: master: svc: change ENXIO to EAGAIN when IBI occurs during start frame
[ Upstream commit 7f3d633b460be5553a65a247def5426d16805e72 ]
svc_i3c_master_xfer() returns error ENXIO if an In-Band Interrupt (IBI)
occurs when the host starts the frame.
Change error code to EAGAIN to inform the client driver that this
situation has occurred and to try again sometime later.
Fixes: 5e5e3c92e748 ("i3c: master: svc: fix wrong data return when IBI happen during start frame")
Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
Reviewed-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240506164009.21375-2-Frank.Li@xxxxxxx
Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c
index 3966924d10668..e18bf9ca85197 100644
--- a/drivers/i3c/master/svc-i3c-master.c
+++ b/drivers/i3c/master/svc-i3c-master.c
@@ -1065,7 +1065,7 @@ static int svc_i3c_master_xfer(struct svc_i3c_master *master,
* and yield the above events handler.
*/
if (SVC_I3C_MSTATUS_IBIWON(reg)) {
- ret = -ENXIO;
+ ret = -EAGAIN;
*actual_len = 0;
goto emit_stop;
}
