This is a note to let you know that I've just added the patch titled
tpm/tpm_tis: Disable interrupts for Lenovo L590 devices
to the 6.4-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:
tpm-tpm_tis-disable-interrupts-for-lenovo-l590-devices.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 393f362389cecc2e4f2e3520a6c8ee9dbb1e3d15 Mon Sep 17 00:00:00 2001
From: Florian Bezdeka <florian@xxxxxxxxxx>
Date: Tue, 20 Jun 2023 13:11:01 +0200
Subject: tpm/tpm_tis: Disable interrupts for Lenovo L590 devices
From: Florian Bezdeka <florian@xxxxxxxxxx>
commit 393f362389cecc2e4f2e3520a6c8ee9dbb1e3d15 upstream.
The Lenovo L590 suffers from an irq storm issue like the T490, T490s
and P360 Tiny, so add an entry for it to tpm_tis_dmi_table and force
polling.
Cc: stable@xxxxxxxxxxxxxxx # v6.4+
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2214069#c0
Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
Signed-off-by: Florian Bezdeka <florian@xxxxxxxxxx>
Reviewed-by: Jerry Snitselaar <jsnitsel@xxxxxxxxxx>
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/char/tpm/tpm_tis.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 4e4426965cd0..cc42cf3de960 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -154,6 +154,14 @@ static const struct dmi_system_id tpm_tis_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L490"),
},
},
+ {
+ .callback = tpm_tis_disable_irq,
+ .ident = "ThinkPad L590",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L590"),
+ },
+ },
{
.callback = tpm_tis_disable_irq,
.ident = "UPX-TGL",
--
2.41.0
Patches currently in stable-queue which might be from florian@xxxxxxxxxx are
queue-6.4/tpm-tpm_tis-disable-interrupts-for-lenovo-l590-devices.patch
