This is a note to let you know that I've just added the patch titled
rsi: Use resume_noirq for SDIO
to the 4.19-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:
rsi-use-resume_noirq-for-sdio.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c434e5e48dc4e626364491455f97e2db0aa137b1 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@xxxxxxx>
Date: Sun, 28 Mar 2021 00:59:32 +0100
Subject: rsi: Use resume_noirq for SDIO
From: Marek Vasut <marex@xxxxxxx>
commit c434e5e48dc4e626364491455f97e2db0aa137b1 upstream.
The rsi_resume() does access the bus to enable interrupts on the RSI
SDIO WiFi card, however when calling sdio_claim_host() in the resume
path, it is possible the bus is already claimed and sdio_claim_host()
spins indefinitelly. Enable the SDIO card interrupts in resume_noirq
instead to prevent anything else from claiming the SDIO bus first.
Fixes: 20db07332736 ("rsi: sdio suspend and resume support")
Signed-off-by: Marek Vasut <marex@xxxxxxx>
Cc: Amitkumar Karwar <amit.karwar@xxxxxxxxxxxxxxxxxx>
Cc: Angus Ainslie <angus@xxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Jakub Kicinski <kuba@xxxxxxxxxx>
Cc: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Cc: Karun Eagalapati <karun256@xxxxxxxxx>
Cc: Martin Kepplinger <martink@xxxxxxxxx>
Cc: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@xxxxxxx>
Cc: Siva Rebbagondla <siva8118@xxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210327235932.175896-1-marex@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/rsi/rsi_91x_sdio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/rsi/rsi_91x_sdio.c
+++ b/drivers/net/wireless/rsi/rsi_91x_sdio.c
@@ -1400,7 +1400,7 @@ static int rsi_restore(struct device *de
}
static const struct dev_pm_ops rsi_pm_ops = {
.suspend = rsi_suspend,
- .resume = rsi_resume,
+ .resume_noirq = rsi_resume,
.freeze = rsi_freeze,
.thaw = rsi_thaw,
.restore = rsi_restore,
Patches currently in stable-queue which might be from marex@xxxxxxx are
queue-4.19/rsi-use-resume_noirq-for-sdio.patch
